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Accuphase E-202 Driver board factory changes?

BradWil

BradWil

AK Subscriber
Subscriber
The only SM I have available shows the standard driver circuit for PCB 710-0002-00, however I'm seeing a fairly major modification that appears to be factory but I may be wrong. I've read the service supplements and aware that in April 1976 it was recommended to remove D6 and R35 and replace with links. I understand it’s fairly common for Accuphase as they are all hand built and only the authorised service agents have access to the config database.

What I have in front of me is a little different with D6 replaced with a link, R35 removed with no link and an addition of NPN 2SC1746 as per attached diagrams. This change is reflected across both driver boards.

The serial number of the unit is J6Q167, so I believe it's a fairly late model.

Excuse the crude sketch. I have included the standard scat, service supp and the scat as it stands (or lies) on the bench.

Has anyone else come across such a change and perhaps can shed some light on the reason for it?

20210926_094959.jpg 20210926_094951.jpg 710-0002-00 actual.jpg 710-0002-00 service supplement.JPG 710-0002-00 stock.JPG
 
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FOY178 is on my bench currently. It still has D6 on both driver boards, and does not have Q9.

The updated (1977) schematic for that is at HFE, marked as "E4Y001-up" and shows the later revisions.

710-002-00Early.jpg
 
Thanks! I missed that for some reason. I replaced all small BJT's including Q9. The unit tested stable on the bench after the rebuild and is back with the customer sounding very bright and detailed.

I have a F5V554 here now. No D6, R35 or Q9. I also have another very early model in the pipeline that has boards without silk screen and significant changes to the filter and tone circuits.

20211001_105057.jpg
 
There are 1451s all over the unit to be cleaned up and disposed of.

Did you also notice heating on the power supply board, both at the regulators and several resistors? The one I have gets more heat sink for the regulators and 3W resistors stood off the board in the hot spots. Filters are next.

719-0004-00.jpg
 
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I think that is a worthwhile upgrade to the PS. Did you find a repalcement for the regulators?

I replaced all transistors throughout the entire unit, bar the regulators on the PS, TO-66 drivers and JFETs on the EQ. All capacitors of every type were replaced bar the mica ones. Polypropelene was used for all the Mylar replacements and C0G for the ceramics. Photos of the boards attached.

It elevated the amp from tired and muddy to something on a par with a Sansui AU-717. Here's a demo:
 

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Oh, and the replacement of the filter caps with Nichicon LKG made an enormous difference to the bass and believe it or not, the top end
 

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Nicely done. The NP caps seems to have some odd values, and are taking a while. It's also evident this one has been running at "11" for quite some time.

I have four of the Kemet 100V ALPs to replace the leaking filter caps in this one. They were so bad the unit has not been powered yet. Did you add small bypass caps to the filters? Bleeder resistors? I'm considering it.
 
I thought of it but decided not to add bypass or bleeder resistors. Geez, those axial caps cost a fortune but I did find some NP ones to suit. I'll upload my parts list ...
 
here's the list of all replacements. This was a complete restoration project on a working unit.

Section Position Class Type Value Volt / hFE Terminal Power Lead Part Supplier Make Type Series Value Volt/hFE Power
Tone Cont 716-0006-00 C1 Capacitor Mylar 0.12uF 50 15 4764304 RS Panasonic Polyester ECQE 0.15uF 630
Tone Cont 716-0006-00 C2 Capacitor Mylar 0.12uF 50 15 4764304 RS Panasonic Polyester ECQE 0.15uF 630
Tone Cont 716-0006-00 C3 Capacitor Mylar 0.082uF 50 7.5 ECQ-E2823KF MS Panasonic Polyester ECQE 0.082uF 250
Tone Cont 716-0006-00 C4 Capacitor Mylar 0.082uF 50 7.5 ECQ-E2823KF MS Panasonic Polyester ECQE 0.082uF 250
Tone Cont 716-0006-00 C5 Capacitor Mylar 0.047uF 50 5 1082362 RS WIMA Polyester MKS2 0.047uF 63
Tone Cont 716-0006-00 C6 Capacitor Mylar 0.047uF 50 5 1082362 RS WIMA Polyester MKS2 0.047uF 63
Tone Cont 716-0006-00 C7 Capacitor Mylar 0.015uF 50 5 1082328 RS WIMA Polyester MKS2 0.015uF 63
Tone Cont 716-0006-00 C8 Capacitor Mylar 0.015uF 50 5 1082328 RS WIMA Polyester MKS2 0.015uF 63
Tone Cont 716-0006-00 C9 Capacitor Mylar 0.047uF 50 5 1082362 RS WIMA Polyester MKS2 0.047uF 63
Tone Cont 716-0006-00 C10 Capacitor Mylar 0.047uF 50 5 1082362 RS WIMA Polyester MKS2 0.047uF 63
Tone Cont 716-0006-00 C11 Capacitor Mylar 0.0082uF 50 5 2924986 E14 Vishay Polyester BCF 0.0082uF 400
Tone Cont 716-0006-00 C12 Capacitor Mylar 0.0082uF 50 5 2924986 E14 Vishay Polyester BCF 0.0082uF 400
Tone Cont 716-0006-00 C13 Capacitor Mylar 0.0082uF 50 5 2924986 E14 Vishay Polyester BCF 0.0082uF 400
Tone Cont 716-0006-00 C14 Capacitor Mylar 0.0082uF 50 5 2924986 E14 Vishay Polyester BCF 0.0082uF 400
Tone Cont 716-0006-00 C15 Capacitor Mylar 0.033uF 50 5 1666459 RS Vishay Polyprop MKP 1837 0.033uF 100
Tone Cont 716-0006-00 C16 Capacitor Mylar 0.033uF 50 5 1666459 RS Vishay Polyprop MKP 1837 0.033uF 100
Tone Cont 716-0006-00 C17 Capacitor Mylar 0.015uF 50 5 1082328 RS WIMA Polyester MKS2 0.015uF 63
Tone Cont 716-0006-00 C18 Capacitor Mylar 0.015uF 50 5 1082328 RS WIMA Polyester MKS2 0.015uF 63
Tone Cont 716-0006-00 C19 Capacitor Mylar 0.0068uF 50 5 1262276 RS Kemet Polyester 0.0068uF 100
Tone Cont 716-0006-00 C20 Capacitor Mylar 0.0068uF 50 5 1262276 RS Kemet Polyester 0.0068uF 100
Tone Cont 716-0006-00 C21 Capacitor Mylar 0.0022uF 50 5 1224241 RS WIMA Polyester FKS2 0.0022uF 100
Tone Cont 716-0006-00 C22 Capacitor Mylar 0.0022uF 50 15 ECQ-E6222KF MS Panasonic Polyester ECQE 0.0022uF 630
Tone Cont 716-0006-00 C23 Capacitor Mylar 0.0012uF 50 5 1005980 E14 WIMA Polyprop FKP2 0.0012uF 100
Tone Cont 716-0006-00 C24 Capacitor Mylar 0.0012uF 50 5 1005980 E14 WIMA Polyprop FKP2 0.0012uF 100
EQ 711-0002-10 R19 Resistor Carbon 33K 0.5 1242893 RS KOA Metal Film 68K 0.5
EQ 711-0002-10 R20 Resistor Carbon 33K 0.5 1242893 RS KOA Metal Film 68K 0.5
EQ 711-0002-10 C1 Capacitor Metalised Film 1uF 250 22 8752055 RS Kemet Polyprop R75 1uF 250
EQ 711-0002-10 C2 Capacitor Metalised Film 1uF 250 22 8752055 RS Kemet Polyprop R75 1uF 250
EQ 711-0002-10 C15 Capacitor Metalised Film 1uF 250 22 8752055 RS Kemet Polyprop R75 1uF 250
EQ 711-0002-10 C16 Capacitor Metalised Film 1uF 250 22 8752055 RS Kemet Polyprop R75 1uF 250
EQ 711-0002-10 C19 Capacitor Electrolytic 10uF 50 7 6022501 RS Nichicon Electrolytic FG 10uF 50
EQ 711-0002-10 C20 Capacitor Electrolytic 10uF 50 7 6022501 RS Nichicon Electrolytic FG 10uF 50
EQ 711-0002-10 C21 Capacitor Electrolytic 10uF 50 7 6022501 RS Nichicon Electrolytic FG 10uF 50
EQ 711-0002-10 C22 Capacitor Electrolytic 10uF 50 7 6022501 RS Nichicon Electrolytic FG 10uF 50
EQ 711-0002-10 C35 Capacitor Electrolytic 100uF 10 5 RFS-16V101MH3#5 MS Elna Electrolytic RFS 100uF 16
EQ 711-0002-10 C36 Capacitor Electrolytic 100uF 10 5 RFS-16V101MH3#5 MS Elna Electrolytic RFS 100uF 16
EQ 711-0002-10 C17 Capacitor Electrolytic 220uF 16 Axial 21 3245183 RS Vishay Electrolytic 021ASM 220uF 25
EQ 711-0002-10 C18 Capacitor Electrolytic 220uF 16 Axial 21 3245183 RS Vishay Electrolytic 021ASM 220uF 25
EQ 711-0002-10 C31 Capacitor Ceramic 0.1uF 50 7 1940538 RS TDK MLCC FG 0.1uF 50
EQ 711-0002-10 C32 Capacitor Ceramic 0.1uF 50 10 1940538 RS TDK MLCC FG 0.1uF 50
EQ 711-0002-10 C33 Capacitor Ceramic 0.1uF 50 7 1940538 RS TDK MLCC FG 0.1uF 50
EQ 711-0002-10 C34 Capacitor Ceramic 0.1uF 50 10 1940538 RS TDK MLCC FG 0.1uF 50
EQ 711-0002-10 C3 Capacitor Tantalum 2.2uF 16 5 107422 E14 WIMA Polyester MKS2 2.2uF 50
EQ 711-0002-10 C4 Capacitor Tantalum 2.2uF 16 5 107422 E14 WIMA Polyester MKS2 2.2uF 50
EQ 711-0002-10 C5 Capacitor Tantalum 4.7uF 16 14 1719241 RS Kemet Polyester R82 4.7uF 50
EQ 711-0002-10 C6 Capacitor Tantalum 4.7uF 16 14 1719241 RS Kemet Polyester R82 4.7uF 50
EQ 711-0002-10 C29 Capacitor Ceramic 27pF 50 4 1940457 RS TDK MLCC FG 33pF 50
EQ 711-0002-10 C30 Capacitor Ceramic 27pF 50 4 1940457 RS TDK MLCC FG 33pF 50
EQ 711-0002-10 C7 Capacitor Mica 5pF 50 6 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
EQ 711-0002-10 C8 Capacitor Mica 5pF 50 6 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
EQ 711-0002-10 C27 Capacitor Mica 5pF 50 6 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
EQ 711-0002-10 C28 Capacitor Mica 5pF 50 6 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
EQ 711-0002-10 Q9 Transistor NPN 2SC1451 329 9525610 E14 Diodes Inc NPN ZTX694B 521
EQ 711-0002-10 Q10 Transistor NPN 2SC1451 259 9525610 E14 Diodes Inc NPN ZTX694B 533
EQ 711-0002-10 Q1 Transistor PNP 2SA856 244 8064447 RS ON Semi PNP KSA992 373
EQ 711-0002-10 Q2 Transistor PNP 2SA856 279 8064447 RS ON Semi PNP KSA992 372
EQ 711-0002-10 Q3 Transistor PNP 2SA856 315 8064447 RS ON Semi PNP KSA992 373
EQ 711-0002-10 Q4 Transistor PNP 2SA856 258 8064447 RS ON Semi PNP KSA992 372
EQ 711-0002-10 Q7 Transistor PNP 2SA856 252 8064447 RS ON Semi PNP KSA992 389
EQ 711-0002-10 Q8 Transistor PNP 2SA856 239 8064447 RS ON Semi PNP KSA992 395
EQ 711-0002-10 Q5 Transistor NPN 2SC1746 260 9525610 E14 Diodes Inc NPN ZTX694B 554
EQ 711-0002-10 Q6 Transistor NPN 2SC1746 295 9525610 E14 Diodes Inc NPN ZTX694B 564
PS 719-0004-00 D4 Diode
PS 719-0004-00 C8 Capacitor Metalised Film 2.2uF 250 32 8752068 RS Kemet Polypropylene R75 2.2uF 250
PS 719-0004-00 C13 Capacitor Electrolytic 100uF 100 Axial 39 3245385 RS Vishay Electrolytic 021ASM 100uF 100
PS 719-0004-00 C14 Capacitor Electrolytic 100uF 100 Axial 39 3245385 RS Vishay Electrolytic 021ASM 100uF 100
PS 719-0004-00 C15 Capacitor Electrolytic 100uF 100 Axial 39 3245385 RS Vishay Electrolytic 021ASM 100uF 100
PS 719-0004-00 C1 Capacitor Bipolar 100uF 10 Axial 32 598-107BPA016M MS CDE Bipolar BPA 100uF 16
PS 719-0004-00 C16 Capacitor Electrolytic 10uF 80 Axial 22.5 MAL211839109E3 MS Vishay Electrolytic 118AHT 10uF 100
PS 719-0004-00 C17 Capacitor Electrolytic 10uF 80 Axial 22.5 MAL211839109E3 MS Vishay Electrolytic 118AHT 10uF 100
PS 719-0004-00 C6 Capacitor Bipolar 2.2uF 50 Axial 18 225BPA100M MS Vishay Bipolar BPA 2.2uF 100
PS 719-0004-00 C4 Capacitor Electrolytic 100uF 6.3 Axial 20 MAL202134101E3 MS Vishay Electrolytic 021ASM 100uF 10
Switch 716-0007-10 C5 Capacitor Metalised Film 1uF 250 20 7270017 RS Panasonic Polyprop ECWF 1uF 250
Switch 716-0007-10 C6 Capacitor Metalised Film 1uF 250 20 7270017 RS Panasonic Polyprop ECWF 1uF 250
Switch 716-0007-10 C3 Capacitor Mylar 0.0039uF 50 7 3227742 E14 Panasonic Polyprop ECWF 0.0039uF 630
Switch 716-0007-10 C4 Capacitor Mylar 0.0039uF 50 7 3227742 E14 Panasonic Polyprop ECWF 0.0039uF 630
Switch 716-0007-10 C1 Capacitor Tantalum 22uF 16 RFS-25V100ME3#5 MS Elna Electrolytic RFS 22uF 25
Switch 716-0007-10 C2 Capacitor Tantalum 22uF 16 RFS-25V100ME3#5 MS Elna Electrolytic RFS 22uF 25
Meter 716-0008-00 VR1 Trimmer Single turn 10K (2.5K) 5220079 RS Bourns 25-turn 10K 0.5
Meter 716-0008-00 VR2 Trimmer Single turn 10K (2.7K) 5220079 RS Bourns 25-turn 10K 0.5
Meter 716-0008-00 C1 Capacitor Electrolytic 3.3uF 35 Axial 15 6022589 RS Nichicon Electrolytic FG 3.3uF 50
Meter 716-0008-00 C2 Capacitor Electrolytic 3.3uF 35 Axial 15 6022589 RS Nichicon Electrolytic FG 3.3uF 50
PS 719-0004-00 Q9 Transistor NPN 2SC1382 NOT REPLACED
PS 719-0004-00 Q10 Transistor PNP 2SA682 NOT REPLACED
PS 719-0004-00 C25 Capacitor Bipolar 4.7uF 25 5 1719241 RS Kemet Polyester R82 4.7uF 50
PS 719-0004-00 C19 Capacitor Electrolytic 4.7uF 50 10 7152906 RS Nichicon Electrolytic UPW 4.7uF 63
PS 719-0004-00 C2 Capacitor Electrolytic 10uF 25 5 7152713 RS Nichicon Electrolytic UPW 10uF 35
PS 719-0004-00 C5 Capacitor Electrolytic 3.3uF 50 10 6022589 RS Nichicon Electrolytic FG 3.3uF 63
PS 719-0004-00 C7 Capacitor Mylar 1nF 50 113320 RS RS Pro Polystyrene FSC 1nF 160
PS 719-0004-00 C23 Capacitor Electrolytic 100uF 63 36 3245385 RS Vishay Electrolytic 021ASM 100uF 100
PS 719-0004-00 C3 Capacitor Ceramic 100pF 50 5 1940470 RS TDK C0G FG 100pF 50
PS 719-0004-00 C24 Capacitor Electrolytic 1uF 50 15 1899903 E14 Nichicon Electrolytic UPW 1uF 100
PS 719-0004-00 C9 Capacitor Ceramic 0.01uF 500 10 1816540 RS Vishay SLCC 562R 0.01uF 1000
PS 719-0004-00 C10 Capacitor Ceramic 0.01uF 500 10 1816540 RS Vishay SLCC 562R 0.01uF 1000
PS 719-0004-00 C11 Capacitor Ceramic 0.01uF 500 10 1816540 RS Vishay SLCC 562R 0.01uF 1000
PS 719-0004-00 C12 Capacitor Ceramic 0.01uF 500 10 1816540 RS Vishay SLCC 562R 0.01uF 1000
PS 719-0004-00 C21 Capacitor Ceramic 0.047uF 50 10 9060691 RS Kemet X7R Goldmax 300 0.047uF 1000
PS 719-0004-00 C22 Capacitor Ceramic 0.047uF 50 10 9060691 RS Kemet X7R Goldmax 300 0.047uF 1000
PS 719-0004-00 C18 Capacitor Ceramic 0.01uF 50 10 1940522 RS TDK C0G FG 0.01uF 50
PS 719-0004-00 C20 Capacitor Ceramic 0.01uF 50 10 1940522 RS TDK C0G FG 0.01uF 50
PS 719-0004-00 Q1 Transistor NPN 2SC1451 TTC004B MS Toshiba NPN TTC004B
PS 719-0004-00 Q2 Transistor NPN 2SC1451 TTC004B MS Toshiba NPN TTC004B
PS 719-0004-00 Q5 Transistor NPN 2SC1451 TTC004B MS Toshiba NPN TTC004B
PS 719-0004-00 Q7 Transistor NPN 2SC1746 453 9525610 E14 Diodes Inc NPN ZTX694B 591
PS 719-0004-00 Q3 Transistor NPN 2SC1746 441 9525610 E14 Diodes Inc NPN ZTX694B 581
PS 719-0004-00 Q4 Transistor NPN 2SC1746 443 9525610 E14 Diodes Inc NPN ZTX694B 583
PS 719-0004-00 Q11 Transistor PNP 2SA856 299 ZTX795A MS Diodes Inc PNP ZTX795A 371
PS 719-0004-00 Q6 Transistor PNP 2SA497 106 TTA004B MS Toshiba PNP TTA004B 191
PS 719-0004-00 Q8 Transistor NPN 2SC497 91 TTC004B MS Toshiba NPN TTC004B 199
Filter 714-0004-00 C1 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C2 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C3 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C4 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C5 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C6 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C7 Capacitor Ceramic 470pF 50 1940591 RS TDK C0G FG 470pF 100
Filter 714-0004-00 C8 Capacitor Ceramic 470pF 50 1940591 RS TDK C0G FG 470pF 100
Filter 714-0004-00 C17 Capacitor Ceramic 470pF 50 1940591 RS TDK C0G FG 470pF 100
Filter 714-0004-00 C18 Capacitor Ceramic 470pF 50 1940591 RS TDK C0G FG 470pF 100
Filter 714-0004-00 C19 Capacitor Ceramic 0.01uF 50 1940522 RS TDK C0G FG 0.01uF 50
Filter 714-0004-00 C20 Capacitor Ceramic 0.01uF 50 1940522 RS TDK C0G FG 0.01uF 50
Filter 714-0004-00 C11 Capacitor Mylar 3.3nF 50 115720 RS WIMA Polyprop FPK2 3.3nF 63
Filter 714-0004-00 C12 Capacitor Mylar 3.3nF 50 115720 RS WIMA Polyprop FPK2 3.3nF 63
Filter 714-0004-00 C13 Capacitor Mylar 1.2nF 50 23PS212 MS Xicon Polystyrene 23P 1.2nF 50
Filter 714-0004-00 C14 Capacitor Mylar 1.2nF 50 23PS212 MS Xicon Polystyrene 23P 1.2nF 50
Filter 714-0004-00 C9 Capacitor Metalised Film 0.22uF 250 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Filter 714-0004-00 C10 Capacitor Metalised Film 0.22uF 250 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Filter 714-0004-00 C15 Capacitor Metalised Film 0.22uF 250 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Filter 714-0004-00 C16 Capacitor Metalised Film 0.22uF 250 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Filter 714-0004-00 Q1 Transistor PNP 2SA620 314 8064447 RS ON Semi PNP KSA992 388
Filter 714-0004-00 Q2 Transistor PNP 2SA620 329 8064447 RS ON Semi PNP KSA992 388
Filter 714-0004-00 Q3 Transistor PNP 2SA620 339 8064447 RS ON Semi PNP KSA992 384
Filter 714-0004-00 Q4 Transistor PNP 2SA620 299 8064447 RS ON Semi PNP KSA992 386
Tone Amp 712-0002-10 Q5 Transistor PNP 2SA620 266 8064447 RS ON Semi PNP KSA992
Tone Amp 712-0002-10 Q6 Transistor PNP 2SA620 299 8064447 RS ON Semi PNP KSA992
Tone Amp 712-0002-10 Q7 Transistor PNP 2SA620 305 8064447 RS ON Semi PNP KSA992
Tone Amp 712-0002-10 Q8 Transistor PNP 2SA620 318 8064447 RS ON Semi PNP KSA992
Tone Amp 712-0002-10 C9 Capacitor Electrolytic 22uF 50 5 1848399 E14 Panasonic Electrolytic FM 22uF 50
Tone Amp 712-0002-10 C10 Capacitor Electrolytic 22uF 50 5 1848399 E14 Panasonic Electrolytic FM 22uF 50
Tone Amp 712-0002-10 C11 Capacitor Electrolytic 22uF 50 5 1848399 E14 Panasonic Electrolytic FM 22uF 50
Tone Amp 712-0002-10 C12 Capacitor Electrolytic 22uF 50 5 1848399 E14 Panasonic Electrolytic FM 22uF 50
Tone Amp 712-0002-10 C3 Capacitor Mica 47pF 50 5 1940462 RS TDK MLCC FG 47pF 50
Tone Amp 712-0002-10 C4 Capacitor Mica 47pF 50 5 1940462 RS TDK MLCC FG 47pF 50
Tone Amp 712-0002-10 C7 Capacitor Mica 5pF 50 5 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
Tone Amp 712-0002-10 C8 Capacitor Mica 5pF 50 5 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
Tone Amp 712-0002-10 C1 Capacitor Metalised Film 0.22uF 250 15 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Tone Amp 712-0002-10 C2 Capacitor Metalised Film 0.22uF 250 15 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Tone Amp 712-0002-10 C15 Capacitor Metalised Film 0.1uF 250 15 8752065 RS Kemet Polypropylene R75 0.1uF 400
Tone Amp 712-0002-10 C16 Capacitor Metalised Film 0.1uF 250 15 8752065 RS Kemet Polypropylene R75 0.1uF 400
L + R Drive 710-0002-00 C2 Capacitor Metalised Film 0.47uF 250 21 8752052 RS Kemet Polypropylene R75 0.47uF 250
L + R Drive 710-0002-00 C3 Capacitor Electrolytic 100uF 10 Axial 21 MAL202134101E3 MS Vishay Electrolytic 021ASM 100uF 10
L + R Drive 710-0002-00 C5 Capacitor Electrolytic 1uF 50 15 6022488 RS Nichicon Electrolytic FG 1uF 50
L + R Drive 710-0002-00 C8 Capacitor Electrolytic 220uF 63 Axial 38 MAL202118221E3 MS Vishay Electrolytic 021ASM 220uF 63
L + R Drive 710-0002-00 VR1 Trimmer 100 50 5219473 RS Bourns 25-turn 100 0.5
L + R Drive 710-0002-00 VR2 Trimmer 4.7K 2.3K 5219580 RS Bourns 25-turn 5K 0.5
L + R Drive 710-0002-00 C7 Capacitor Ceramic 0.047uF 50 9060691 RS Kemet MLCC Goldmax 300 0.047uF 1000
L + R Drive 710-0002-00 C11 Capacitor Ceramic 0.047uF 50 9060691 RS Kemet MLCC Goldmax 300 0.047uF 1000
L + R Drive 710-0002-00 C12 Capacitor Ceramic 0.047uF 50 9060691 RS Kemet MLCC Goldmax 300 0.047uF 1000
L + R Drive 710-0002-00 C15 Capacitor Ceramic 0.01uF 500 1816540 RS Vishay SLCC 562R 0.01uF 1000
L + R Drive 710-0002-00 C16 Capacitor Ceramic 0.01uF 500 1816540 RS Vishay SLCC 562R 0.01uF 1000
L + R Drive 710-0002-00 Q1 Transistor PNP 2SA620 365 8064447 RS ON Semi PNP KSA992
L + R Drive 710-0002-00 Q2 Transistor PNP 2SA620 362 8064447 RS ON Semi PNP KSA992
L + R Drive 710-0002-00 QX Transistor NPN 2SC1746 257 9525610 E14 Diodes Inc NPN ZTX694B 485
L + R Drive 710-0002-00 Q3 Transistor NPN 2SC1451 123 TTC004B MS Toshiba NPN TTC004B 209
L + R Drive 710-0002-00 Q5 Transistor NPN 2SC1746 283 9525610 E14 Diodes Inc NPN ZTX694B
L + R Drive 710-0002-00 Q6 Transistor PNP 2SA856 273 ZTX795A MS Diodes Inc PNP ZTX795A 334
Chassis Q3 Transistor PNP 2SA679 8624979 RS ON Semi PNP MJ21193G 78
Chassis Q4 Transistor PNP 2SA679 8624979 RS ON Semi PNP MJ21193G 78
Chassis Q7 Transistor PNP 2SA679 8624979 RS ON Semi PNP MJ21193G 78
Chassis Q8 Transistor PNP 2SA679 8624979 RS ON Semi PNP MJ21193G 78
Chassis Q1 Transistor NPN 2SC1079 5450236 RS ON Semi NPN MJ21194G 44
Chassis Q2 Transistor NPN 2SC1079 5450236 RS ON Semi NPN MJ21194G 45
Chassis Q5 Transistor NPN 2SC1079 5450236 RS ON Semi NPN MJ21194G 47
Chassis Q6 Transistor NPN 2SC1079 5450236 RS ON Semi NPN MJ21194G 47
Chassis FILTER Capacitor Electrolytic 10,000uF 63 LKG1K103MKNF MS 10,000uF 80
 
BradWil said:
here's the list of all replacements. This was a complete restoration project on a working unit.

Section Position Class Type Value Volt / hFE Terminal Power Lead Part Supplier Make Type Series Value Volt/hFE Power
Tone Cont 716-0006-00 C1 Capacitor Mylar 0.12uF 50 15 4764304 RS Panasonic Polyester ECQE 0.15uF 630
Tone Cont 716-0006-00 C2 Capacitor Mylar 0.12uF 50 15 4764304 RS Panasonic Polyester ECQE 0.15uF 630
Tone Cont 716-0006-00 C3 Capacitor Mylar 0.082uF 50 7.5 ECQ-E2823KF MS Panasonic Polyester ECQE 0.082uF 250
Tone Cont 716-0006-00 C4 Capacitor Mylar 0.082uF 50 7.5 ECQ-E2823KF MS Panasonic Polyester ECQE 0.082uF 250
Tone Cont 716-0006-00 C5 Capacitor Mylar 0.047uF 50 5 1082362 RS WIMA Polyester MKS2 0.047uF 63
Tone Cont 716-0006-00 C6 Capacitor Mylar 0.047uF 50 5 1082362 RS WIMA Polyester MKS2 0.047uF 63
Tone Cont 716-0006-00 C7 Capacitor Mylar 0.015uF 50 5 1082328 RS WIMA Polyester MKS2 0.015uF 63
Tone Cont 716-0006-00 C8 Capacitor Mylar 0.015uF 50 5 1082328 RS WIMA Polyester MKS2 0.015uF 63
Tone Cont 716-0006-00 C9 Capacitor Mylar 0.047uF 50 5 1082362 RS WIMA Polyester MKS2 0.047uF 63
Tone Cont 716-0006-00 C10 Capacitor Mylar 0.047uF 50 5 1082362 RS WIMA Polyester MKS2 0.047uF 63
Tone Cont 716-0006-00 C11 Capacitor Mylar 0.0082uF 50 5 2924986 E14 Vishay Polyester BCF 0.0082uF 400
Tone Cont 716-0006-00 C12 Capacitor Mylar 0.0082uF 50 5 2924986 E14 Vishay Polyester BCF 0.0082uF 400
Tone Cont 716-0006-00 C13 Capacitor Mylar 0.0082uF 50 5 2924986 E14 Vishay Polyester BCF 0.0082uF 400
Tone Cont 716-0006-00 C14 Capacitor Mylar 0.0082uF 50 5 2924986 E14 Vishay Polyester BCF 0.0082uF 400
Tone Cont 716-0006-00 C15 Capacitor Mylar 0.033uF 50 5 1666459 RS Vishay Polyprop MKP 1837 0.033uF 100
Tone Cont 716-0006-00 C16 Capacitor Mylar 0.033uF 50 5 1666459 RS Vishay Polyprop MKP 1837 0.033uF 100
Tone Cont 716-0006-00 C17 Capacitor Mylar 0.015uF 50 5 1082328 RS WIMA Polyester MKS2 0.015uF 63
Tone Cont 716-0006-00 C18 Capacitor Mylar 0.015uF 50 5 1082328 RS WIMA Polyester MKS2 0.015uF 63
Tone Cont 716-0006-00 C19 Capacitor Mylar 0.0068uF 50 5 1262276 RS Kemet Polyester 0.0068uF 100
Tone Cont 716-0006-00 C20 Capacitor Mylar 0.0068uF 50 5 1262276 RS Kemet Polyester 0.0068uF 100
Tone Cont 716-0006-00 C21 Capacitor Mylar 0.0022uF 50 5 1224241 RS WIMA Polyester FKS2 0.0022uF 100
Tone Cont 716-0006-00 C22 Capacitor Mylar 0.0022uF 50 15 ECQ-E6222KF MS Panasonic Polyester ECQE 0.0022uF 630
Tone Cont 716-0006-00 C23 Capacitor Mylar 0.0012uF 50 5 1005980 E14 WIMA Polyprop FKP2 0.0012uF 100
Tone Cont 716-0006-00 C24 Capacitor Mylar 0.0012uF 50 5 1005980 E14 WIMA Polyprop FKP2 0.0012uF 100
EQ 711-0002-10 R19 Resistor Carbon 33K 0.5 1242893 RS KOA Metal Film 68K 0.5
EQ 711-0002-10 R20 Resistor Carbon 33K 0.5 1242893 RS KOA Metal Film 68K 0.5
EQ 711-0002-10 C1 Capacitor Metalised Film 1uF 250 22 8752055 RS Kemet Polyprop R75 1uF 250
EQ 711-0002-10 C2 Capacitor Metalised Film 1uF 250 22 8752055 RS Kemet Polyprop R75 1uF 250
EQ 711-0002-10 C15 Capacitor Metalised Film 1uF 250 22 8752055 RS Kemet Polyprop R75 1uF 250
EQ 711-0002-10 C16 Capacitor Metalised Film 1uF 250 22 8752055 RS Kemet Polyprop R75 1uF 250
EQ 711-0002-10 C19 Capacitor Electrolytic 10uF 50 7 6022501 RS Nichicon Electrolytic FG 10uF 50
EQ 711-0002-10 C20 Capacitor Electrolytic 10uF 50 7 6022501 RS Nichicon Electrolytic FG 10uF 50
EQ 711-0002-10 C21 Capacitor Electrolytic 10uF 50 7 6022501 RS Nichicon Electrolytic FG 10uF 50
EQ 711-0002-10 C22 Capacitor Electrolytic 10uF 50 7 6022501 RS Nichicon Electrolytic FG 10uF 50
EQ 711-0002-10 C35 Capacitor Electrolytic 100uF 10 5 RFS-16V101MH3#5 MS Elna Electrolytic RFS 100uF 16
EQ 711-0002-10 C36 Capacitor Electrolytic 100uF 10 5 RFS-16V101MH3#5 MS Elna Electrolytic RFS 100uF 16
EQ 711-0002-10 C17 Capacitor Electrolytic 220uF 16 Axial 21 3245183 RS Vishay Electrolytic 021ASM 220uF 25
EQ 711-0002-10 C18 Capacitor Electrolytic 220uF 16 Axial 21 3245183 RS Vishay Electrolytic 021ASM 220uF 25
EQ 711-0002-10 C31 Capacitor Ceramic 0.1uF 50 7 1940538 RS TDK MLCC FG 0.1uF 50
EQ 711-0002-10 C32 Capacitor Ceramic 0.1uF 50 10 1940538 RS TDK MLCC FG 0.1uF 50
EQ 711-0002-10 C33 Capacitor Ceramic 0.1uF 50 7 1940538 RS TDK MLCC FG 0.1uF 50
EQ 711-0002-10 C34 Capacitor Ceramic 0.1uF 50 10 1940538 RS TDK MLCC FG 0.1uF 50
EQ 711-0002-10 C3 Capacitor Tantalum 2.2uF 16 5 107422 E14 WIMA Polyester MKS2 2.2uF 50
EQ 711-0002-10 C4 Capacitor Tantalum 2.2uF 16 5 107422 E14 WIMA Polyester MKS2 2.2uF 50
EQ 711-0002-10 C5 Capacitor Tantalum 4.7uF 16 14 1719241 RS Kemet Polyester R82 4.7uF 50
EQ 711-0002-10 C6 Capacitor Tantalum 4.7uF 16 14 1719241 RS Kemet Polyester R82 4.7uF 50
EQ 711-0002-10 C29 Capacitor Ceramic 27pF 50 4 1940457 RS TDK MLCC FG 33pF 50
EQ 711-0002-10 C30 Capacitor Ceramic 27pF 50 4 1940457 RS TDK MLCC FG 33pF 50
EQ 711-0002-10 C7 Capacitor Mica 5pF 50 6 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
EQ 711-0002-10 C8 Capacitor Mica 5pF 50 6 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
EQ 711-0002-10 C27 Capacitor Mica 5pF 50 6 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
EQ 711-0002-10 C28 Capacitor Mica 5pF 50 6 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
EQ 711-0002-10 Q9 Transistor NPN 2SC1451 329 9525610 E14 Diodes Inc NPN ZTX694B 521
EQ 711-0002-10 Q10 Transistor NPN 2SC1451 259 9525610 E14 Diodes Inc NPN ZTX694B 533
EQ 711-0002-10 Q1 Transistor PNP 2SA856 244 8064447 RS ON Semi PNP KSA992 373
EQ 711-0002-10 Q2 Transistor PNP 2SA856 279 8064447 RS ON Semi PNP KSA992 372
EQ 711-0002-10 Q3 Transistor PNP 2SA856 315 8064447 RS ON Semi PNP KSA992 373
EQ 711-0002-10 Q4 Transistor PNP 2SA856 258 8064447 RS ON Semi PNP KSA992 372
EQ 711-0002-10 Q7 Transistor PNP 2SA856 252 8064447 RS ON Semi PNP KSA992 389
EQ 711-0002-10 Q8 Transistor PNP 2SA856 239 8064447 RS ON Semi PNP KSA992 395
EQ 711-0002-10 Q5 Transistor NPN 2SC1746 260 9525610 E14 Diodes Inc NPN ZTX694B 554
EQ 711-0002-10 Q6 Transistor NPN 2SC1746 295 9525610 E14 Diodes Inc NPN ZTX694B 564
PS 719-0004-00 D4 Diode
PS 719-0004-00 C8 Capacitor Metalised Film 2.2uF 250 32 8752068 RS Kemet Polypropylene R75 2.2uF 250
PS 719-0004-00 C13 Capacitor Electrolytic 100uF 100 Axial 39 3245385 RS Vishay Electrolytic 021ASM 100uF 100
PS 719-0004-00 C14 Capacitor Electrolytic 100uF 100 Axial 39 3245385 RS Vishay Electrolytic 021ASM 100uF 100
PS 719-0004-00 C15 Capacitor Electrolytic 100uF 100 Axial 39 3245385 RS Vishay Electrolytic 021ASM 100uF 100
PS 719-0004-00 C1 Capacitor Bipolar 100uF 10 Axial 32 598-107BPA016M MS CDE Bipolar BPA 100uF 16
PS 719-0004-00 C16 Capacitor Electrolytic 10uF 80 Axial 22.5 MAL211839109E3 MS Vishay Electrolytic 118AHT 10uF 100
PS 719-0004-00 C17 Capacitor Electrolytic 10uF 80 Axial 22.5 MAL211839109E3 MS Vishay Electrolytic 118AHT 10uF 100
PS 719-0004-00 C6 Capacitor Bipolar 2.2uF 50 Axial 18 225BPA100M MS Vishay Bipolar BPA 2.2uF 100
PS 719-0004-00 C4 Capacitor Electrolytic 100uF 6.3 Axial 20 MAL202134101E3 MS Vishay Electrolytic 021ASM 100uF 10
Switch 716-0007-10 C5 Capacitor Metalised Film 1uF 250 20 7270017 RS Panasonic Polyprop ECWF 1uF 250
Switch 716-0007-10 C6 Capacitor Metalised Film 1uF 250 20 7270017 RS Panasonic Polyprop ECWF 1uF 250
Switch 716-0007-10 C3 Capacitor Mylar 0.0039uF 50 7 3227742 E14 Panasonic Polyprop ECWF 0.0039uF 630
Switch 716-0007-10 C4 Capacitor Mylar 0.0039uF 50 7 3227742 E14 Panasonic Polyprop ECWF 0.0039uF 630
Switch 716-0007-10 C1 Capacitor Tantalum 22uF 16 RFS-25V100ME3#5 MS Elna Electrolytic RFS 22uF 25
Switch 716-0007-10 C2 Capacitor Tantalum 22uF 16 RFS-25V100ME3#5 MS Elna Electrolytic RFS 22uF 25
Meter 716-0008-00 VR1 Trimmer Single turn 10K (2.5K) 5220079 RS Bourns 25-turn 10K 0.5
Meter 716-0008-00 VR2 Trimmer Single turn 10K (2.7K) 5220079 RS Bourns 25-turn 10K 0.5
Meter 716-0008-00 C1 Capacitor Electrolytic 3.3uF 35 Axial 15 6022589 RS Nichicon Electrolytic FG 3.3uF 50
Meter 716-0008-00 C2 Capacitor Electrolytic 3.3uF 35 Axial 15 6022589 RS Nichicon Electrolytic FG 3.3uF 50
PS 719-0004-00 Q9 Transistor NPN 2SC1382 NOT REPLACED
PS 719-0004-00 Q10 Transistor PNP 2SA682 NOT REPLACED
PS 719-0004-00 C25 Capacitor Bipolar 4.7uF 25 5 1719241 RS Kemet Polyester R82 4.7uF 50
PS 719-0004-00 C19 Capacitor Electrolytic 4.7uF 50 10 7152906 RS Nichicon Electrolytic UPW 4.7uF 63
PS 719-0004-00 C2 Capacitor Electrolytic 10uF 25 5 7152713 RS Nichicon Electrolytic UPW 10uF 35
PS 719-0004-00 C5 Capacitor Electrolytic 3.3uF 50 10 6022589 RS Nichicon Electrolytic FG 3.3uF 63
PS 719-0004-00 C7 Capacitor Mylar 1nF 50 113320 RS RS Pro Polystyrene FSC 1nF 160
PS 719-0004-00 C23 Capacitor Electrolytic 100uF 63 36 3245385 RS Vishay Electrolytic 021ASM 100uF 100
PS 719-0004-00 C3 Capacitor Ceramic 100pF 50 5 1940470 RS TDK C0G FG 100pF 50
PS 719-0004-00 C24 Capacitor Electrolytic 1uF 50 15 1899903 E14 Nichicon Electrolytic UPW 1uF 100
PS 719-0004-00 C9 Capacitor Ceramic 0.01uF 500 10 1816540 RS Vishay SLCC 562R 0.01uF 1000
PS 719-0004-00 C10 Capacitor Ceramic 0.01uF 500 10 1816540 RS Vishay SLCC 562R 0.01uF 1000
PS 719-0004-00 C11 Capacitor Ceramic 0.01uF 500 10 1816540 RS Vishay SLCC 562R 0.01uF 1000
PS 719-0004-00 C12 Capacitor Ceramic 0.01uF 500 10 1816540 RS Vishay SLCC 562R 0.01uF 1000
PS 719-0004-00 C21 Capacitor Ceramic 0.047uF 50 10 9060691 RS Kemet X7R Goldmax 300 0.047uF 1000
PS 719-0004-00 C22 Capacitor Ceramic 0.047uF 50 10 9060691 RS Kemet X7R Goldmax 300 0.047uF 1000
PS 719-0004-00 C18 Capacitor Ceramic 0.01uF 50 10 1940522 RS TDK C0G FG 0.01uF 50
PS 719-0004-00 C20 Capacitor Ceramic 0.01uF 50 10 1940522 RS TDK C0G FG 0.01uF 50
PS 719-0004-00 Q1 Transistor NPN 2SC1451 TTC004B MS Toshiba NPN TTC004B
PS 719-0004-00 Q2 Transistor NPN 2SC1451 TTC004B MS Toshiba NPN TTC004B
PS 719-0004-00 Q5 Transistor NPN 2SC1451 TTC004B MS Toshiba NPN TTC004B
PS 719-0004-00 Q7 Transistor NPN 2SC1746 453 9525610 E14 Diodes Inc NPN ZTX694B 591
PS 719-0004-00 Q3 Transistor NPN 2SC1746 441 9525610 E14 Diodes Inc NPN ZTX694B 581
PS 719-0004-00 Q4 Transistor NPN 2SC1746 443 9525610 E14 Diodes Inc NPN ZTX694B 583
PS 719-0004-00 Q11 Transistor PNP 2SA856 299 ZTX795A MS Diodes Inc PNP ZTX795A 371
PS 719-0004-00 Q6 Transistor PNP 2SA497 106 TTA004B MS Toshiba PNP TTA004B 191
PS 719-0004-00 Q8 Transistor NPN 2SC497 91 TTC004B MS Toshiba NPN TTC004B 199
Filter 714-0004-00 C1 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C2 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C3 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C4 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C5 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C6 Capacitor Mylar 0.22uF 50 1890135 E14 WIMA Polyester MKS2 0.22uF 63
Filter 714-0004-00 C7 Capacitor Ceramic 470pF 50 1940591 RS TDK C0G FG 470pF 100
Filter 714-0004-00 C8 Capacitor Ceramic 470pF 50 1940591 RS TDK C0G FG 470pF 100
Filter 714-0004-00 C17 Capacitor Ceramic 470pF 50 1940591 RS TDK C0G FG 470pF 100
Filter 714-0004-00 C18 Capacitor Ceramic 470pF 50 1940591 RS TDK C0G FG 470pF 100
Filter 714-0004-00 C19 Capacitor Ceramic 0.01uF 50 1940522 RS TDK C0G FG 0.01uF 50
Filter 714-0004-00 C20 Capacitor Ceramic 0.01uF 50 1940522 RS TDK C0G FG 0.01uF 50
Filter 714-0004-00 C11 Capacitor Mylar 3.3nF 50 115720 RS WIMA Polyprop FPK2 3.3nF 63
Filter 714-0004-00 C12 Capacitor Mylar 3.3nF 50 115720 RS WIMA Polyprop FPK2 3.3nF 63
Filter 714-0004-00 C13 Capacitor Mylar 1.2nF 50 23PS212 MS Xicon Polystyrene 23P 1.2nF 50
Filter 714-0004-00 C14 Capacitor Mylar 1.2nF 50 23PS212 MS Xicon Polystyrene 23P 1.2nF 50
Filter 714-0004-00 C9 Capacitor Metalised Film 0.22uF 250 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Filter 714-0004-00 C10 Capacitor Metalised Film 0.22uF 250 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Filter 714-0004-00 C15 Capacitor Metalised Film 0.22uF 250 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Filter 714-0004-00 C16 Capacitor Metalised Film 0.22uF 250 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Filter 714-0004-00 Q1 Transistor PNP 2SA620 314 8064447 RS ON Semi PNP KSA992 388
Filter 714-0004-00 Q2 Transistor PNP 2SA620 329 8064447 RS ON Semi PNP KSA992 388
Filter 714-0004-00 Q3 Transistor PNP 2SA620 339 8064447 RS ON Semi PNP KSA992 384
Filter 714-0004-00 Q4 Transistor PNP 2SA620 299 8064447 RS ON Semi PNP KSA992 386
Tone Amp 712-0002-10 Q5 Transistor PNP 2SA620 266 8064447 RS ON Semi PNP KSA992
Tone Amp 712-0002-10 Q6 Transistor PNP 2SA620 299 8064447 RS ON Semi PNP KSA992
Tone Amp 712-0002-10 Q7 Transistor PNP 2SA620 305 8064447 RS ON Semi PNP KSA992
Tone Amp 712-0002-10 Q8 Transistor PNP 2SA620 318 8064447 RS ON Semi PNP KSA992
Tone Amp 712-0002-10 C9 Capacitor Electrolytic 22uF 50 5 1848399 E14 Panasonic Electrolytic FM 22uF 50
Tone Amp 712-0002-10 C10 Capacitor Electrolytic 22uF 50 5 1848399 E14 Panasonic Electrolytic FM 22uF 50
Tone Amp 712-0002-10 C11 Capacitor Electrolytic 22uF 50 5 1848399 E14 Panasonic Electrolytic FM 22uF 50
Tone Amp 712-0002-10 C12 Capacitor Electrolytic 22uF 50 5 1848399 E14 Panasonic Electrolytic FM 22uF 50
Tone Amp 712-0002-10 C3 Capacitor Mica 47pF 50 5 1940462 RS TDK MLCC FG 47pF 50
Tone Amp 712-0002-10 C4 Capacitor Mica 47pF 50 5 1940462 RS TDK MLCC FG 47pF 50
Tone Amp 712-0002-10 C7 Capacitor Mica 5pF 50 5 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
Tone Amp 712-0002-10 C8 Capacitor Mica 5pF 50 5 FA18C0G1H4R7CNU00 MS TDK MLCC FA 4.7pF 50
Tone Amp 712-0002-10 C1 Capacitor Metalised Film 0.22uF 250 15 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Tone Amp 712-0002-10 C2 Capacitor Metalised Film 0.22uF 250 15 1907817 RS Epcos Polypropylene B32652 0.22uF 250
Tone Amp 712-0002-10 C15 Capacitor Metalised Film 0.1uF 250 15 8752065 RS Kemet Polypropylene R75 0.1uF 400
Tone Amp 712-0002-10 C16 Capacitor Metalised Film 0.1uF 250 15 8752065 RS Kemet Polypropylene R75 0.1uF 400
L + R Drive 710-0002-00 C2 Capacitor Metalised Film 0.47uF 250 21 8752052 RS Kemet Polypropylene R75 0.47uF 250
L + R Drive 710-0002-00 C3 Capacitor Electrolytic 100uF 10 Axial 21 MAL202134101E3 MS Vishay Electrolytic 021ASM 100uF 10
L + R Drive 710-0002-00 C5 Capacitor Electrolytic 1uF 50 15 6022488 RS Nichicon Electrolytic FG 1uF 50
L + R Drive 710-0002-00 C8 Capacitor Electrolytic 220uF 63 Axial 38 MAL202118221E3 MS Vishay Electrolytic 021ASM 220uF 63
L + R Drive 710-0002-00 VR1 Trimmer 100 50 5219473 RS Bourns 25-turn 100 0.5
L + R Drive 710-0002-00 VR2 Trimmer 4.7K 2.3K 5219580 RS Bourns 25-turn 5K 0.5
L + R Drive 710-0002-00 C7 Capacitor Ceramic 0.047uF 50 9060691 RS Kemet MLCC Goldmax 300 0.047uF 1000
L + R Drive 710-0002-00 C11 Capacitor Ceramic 0.047uF 50 9060691 RS Kemet MLCC Goldmax 300 0.047uF 1000
L + R Drive 710-0002-00 C12 Capacitor Ceramic 0.047uF 50 9060691 RS Kemet MLCC Goldmax 300 0.047uF 1000
L + R Drive 710-0002-00 C15 Capacitor Ceramic 0.01uF 500 1816540 RS Vishay SLCC 562R 0.01uF 1000
L + R Drive 710-0002-00 C16 Capacitor Ceramic 0.01uF 500 1816540 RS Vishay SLCC 562R 0.01uF 1000
L + R Drive 710-0002-00 Q1 Transistor PNP 2SA620 365 8064447 RS ON Semi PNP KSA992
L + R Drive 710-0002-00 Q2 Transistor PNP 2SA620 362 8064447 RS ON Semi PNP KSA992
L + R Drive 710-0002-00 QX Transistor NPN 2SC1746 257 9525610 E14 Diodes Inc NPN ZTX694B 485
L + R Drive 710-0002-00 Q3 Transistor NPN 2SC1451 123 TTC004B MS Toshiba NPN TTC004B 209
L + R Drive 710-0002-00 Q5 Transistor NPN 2SC1746 283 9525610 E14 Diodes Inc NPN ZTX694B
L + R Drive 710-0002-00 Q6 Transistor PNP 2SA856 273 ZTX795A MS Diodes Inc PNP ZTX795A 334
Chassis Q3 Transistor PNP 2SA679 8624979 RS ON Semi PNP MJ21193G 78
Chassis Q4 Transistor PNP 2SA679 8624979 RS ON Semi PNP MJ21193G 78
Chassis Q7 Transistor PNP 2SA679 8624979 RS ON Semi PNP MJ21193G 78
Chassis Q8 Transistor PNP 2SA679 8624979 RS ON Semi PNP MJ21193G 78
Chassis Q1 Transistor NPN 2SC1079 5450236 RS ON Semi NPN MJ21194G 44
Chassis Q2 Transistor NPN 2SC1079 5450236 RS ON Semi NPN MJ21194G 45
Chassis Q5 Transistor NPN 2SC1079 5450236 RS ON Semi NPN MJ21194G 47
Chassis Q6 Transistor NPN 2SC1079 5450236 RS ON Semi NPN MJ21194G 47
Chassis FILTER Capacitor Electrolytic 10,000uF 63 LKG1K103MKNF MS 10,000uF 80
Click to expand...
Thank you for making this list. Do you know what might cause a popping noise when switching between Tuner and Disc 1? I've cleaned the switch heavily. Also, all electrolytics have been replaced as well as all transistors. Any ideas would be helpful.
 
Excessive DC voltage is my first thought. Check the bias and DC on both drivers boards. I have also seen failed FETs on one of the tone boards cause this
 
BradWil said:
Excessive DC voltage is my first thought. Check the bias and DC on both drivers boards. I have also seen failed FETs on one of the tone boards cause this
Click to expand...
Thank you for the quick reply. Bias and DC set to spec. Did you replace Q1-4 on yours? I didn't see that on your list. The originals are 2SK23A.

Just to be clear, the popping only occurs when switching between High Level inputs and Phono. No problem switching between the various high level inputs.
 
lbcgav said:
Thank you for the quick reply. Bias and DC set to spec. Did you replace Q1-4 on yours? I didn't see that on your list. The originals are 2SK23A.

Just to be clear, the popping only occurs when switching between High Level inputs and Phono. No problem switching between the various high level inputs.
Click to expand...
I did replace the 2SK23A on one E-202 as they were bleeding DC, but that affected all switches. Sounds like a bad cap perhaps around the input selector circuit. Going to be a challenge to identify. Probably need an oscilloscope
 
BradWil said:
I did replace the 2SK23A on one E-202 as they were bleeding DC, but that affected all switches. Sounds like a bad cap perhaps around the input selector circuit. Going to be a challenge to identify. Probably need an oscilloscope
Click to expand...
Thanks again for the quick reply. I'm curious why you changed R19 and R20 to 68k from 33k on the phono board.
 
Would have been what was installed on the unit I restored. Accuphase consistently made changes mid production
 
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