Sansui solid state 7000 repair, recap, and restore
The Fuxtor
Addicted Member
I use a paint brush and a can of compressed air. Lightly brush back n forth and use the air to blow it out of there.
perryinva
IS it vintage????
Yeah, had already done that, but there is more grime than that. I was thinking more along the lines of when I pull the boards out to recap, what can be used to “wash” them? Just water &paintbrush and blow dry with compresed air? I’ve done that in the past, but was wondering if there is a better way. When all the boards & large caps are out, then there is more room, but I am more concerned with protecting the FM ganged cap & semi sealed sections.
The Fuxtor
Addicted Member
The PCB side you can use acetone. Works well, then give as general isopropyl rinse. On the component side I use just the iso and a bit of elbow grease. I have also bought what I call large q-tips?? They can get around the tight areas and mop it up!!
No final resolution yet. The other AK'ers pointed out my oversight and I plan to attach the TO-126 device to the heatsink so the thermal-coupled-operation will still occur, I just haven't gotten to it yet.
As far as the back panel goes, both the 7000's im working on are in pristine shape. I haven't had to do any external cleaning.
perryinva
IS it vintage????
Amazing they are that old and that clean. Not normally what I come across..but then, mine was given to me for free...
So basically, just extend the leads with insulation, like the originals, and thermally couple the body to the heat sink on TR804.
Also, sorry to be a bother, but I've seen references to a capacitor BOM for this, but haven't actually found it. I found your transistor one. Does it exist somewhere that I can't find? I'm putting together my Digikey & Mouser orders. Thanks!!
So basically, just extend the leads with insulation, like the originals, and thermally couple the body to the heat sink on TR804.
Also, sorry to be a bother, but I've seen references to a capacitor BOM for this, but haven't actually found it. I found your transistor one. Does it exist somewhere that I can't find? I'm putting together my Digikey & Mouser orders. Thanks!!
Yep, that's the plan.
Sure. I have the complete BOM that I built for my orders in Excel. Give me a little time and I'll tranform it into a copy-n-paste BOM ready for Mouser.
I'm not worthy....
The below is the BOM for all the electrolytic caps, trimpots, diodes, and transistors that I used to make my Mouser orders are below. Don't expect them to be perfect as I haven't finished and double-checked the list.
Board Component Type Subtype Value Voltage Amps Mouser PN Qty Notes
After Driver Board C006 capacitor electrolytic 100 uF 100V Axial 647-TVX2A101MCD 1
After Driver Board capacitor electrolytic 0.1 uF 250 V Axial 667-ECQ-E2104KB 2
AM board capacitor electrolytic 10 uF 16V 1
AM board capacitor electrolytic 100 uF 16V 1
AM board capacitor electrolytic 3.3 uF 25V 505-MKS2B043301H00KI 2
AM board capacitor electrolytic 4.7 uF 25V 1
AM board capacitor electrolytic 33 uF 16V 1
Driver (two of them) C802 Capacitor Electrolytic 100 uF 10V 25v 647-UKL1V101MPDANATD 4
Driver (two of them) C804 Capacitor Electrolytic 220 uF 10V 647-UKL1V221KPD 4
Driver (two of them) C805 Capacitor Electrolytic 4.7 uF 50V 647-UKL1H4R7MDDANA 4
Driver (two of them) C806 Capacitor Electrolytic 3.3 uF 25V 647-UKL1H3R3MDD1TA 4
Driver (two of them) C807 Capacitor Electrolytic 100 uF 50V 647-UKL1H101MPD 4
Driver (two of them) C809 Capacitor Electrolytic 470 uF 6V 647-UKL1V471KHD 4
Driver (two of them) VR801 Resistor Trimpot 100K 652-3352H-1-104LF 4
Driver (two of them) VR802 Resistor Trimpot 1K 652-3352H-1-102LF 4
Driver (two of them) TR801 Transistor BJT 2sc711 (E or F) KSC945CG 4 CG C for ECB pinout and G hFE gain of 300 or so
Driver (two of them) TR802 Transistor BJT 2sc817R (F) KSC1845F 4
Driver (two of them) TR803 Transistor BJT 2sc627 (3) ZTX696 4 Will need a TO-92 heatsink
Driver (two of them) TR803 heatsink Transistor BJT 2sc627 (3) 532-575200B00 4 TO-92 heatsink for ZTX696
Driver (two of them) TR804 Transistor BJT 2SC984 C KSC2690A or KSC2383 4
Driver (two of them) TR805 Transistor BJT 2SC680 (B) MJE15032G 4
Driver (two of them) TR806 Transistor BJT 2SA566 (B) MJE15033G 4
Driver (two of them) hanging underneath C813,C814 Capacitor Electrolytic 0.1 uF 250V 647-UVY2D0R1MED 4
FM IF board C215,C233 capacitor electrolytic 10 uF 25V 2
FM IF board C227 capacitor electrolytic 3.3 uF 50V 505-MKS2B043301H00KI 1
FM IF board C230 capacitor electrolytic 47 uF 16V 1
FM MPX board C402,C407,C416,C417,C419,C420,C429 capacitor electrolytic 10 uF 25V 7
FM MPX board C406,C434 capacitor electrolytic 1 uF 50V 505-MKS2C041001FKI00 2
FM MPX board C428 capacitor electrolytic 0.68 uF 25V 505-MKS2C036801EKF00 1
FM MPX board C433 capacitor electrolytic 47 uF 35V 1
FM MPX board C435 capacitor electrolytic 1 uF 25V 505-MKS2C041001FKI00 1
On bridge Transistor BJT 2SC627 512-TIP48TU 1
Other D001 Bridge DS10BN-M 583-BR84 1
Other C003 capacitor electrolytic 220 uF 10V 647-UPW1E221MPD 1
Other C004 capacitor electrolytic 1000 uF 50V Radial 1in diameter 647-UPW1H102MHD 1
Other C005 Capacitor Electrolytic 3300 uF 100 V 647-LLS2A472MELC 1
Other C005 capacitor electrolytic 3300 uF 100V 647-LLS2A472MELC 1
Other C811,C812 Capacitor Electrolytic 2200 uF 80 V 647-LKG1K222MESCBK 2
Other C811,C812 capacitor electrolytic 2200 uF 80V 647-LKG1K222MESCBK 2
Other D002 Diode SR1FM2 100V 3A 625-UF5401-E3 1
Other TR807-TR810 Transistor Output 2SC1116 (R, O or Y) 863-MJ15024G 4
Power and Protection Block C011,C012,C017 Capacitor Electrolytic 220 uF 50V 647-UPW1H221MPD6 3
Power and Protection Block C017 Capacitor Electrolytic 220 uF 25V 647-UPW1H221MPD6 1
Power and Protection Block C901,C902 Capacitor Electrolytic 1 uF 50V 647-UFW1H010MDD 2
Power and Protection Block D010 Diode Zener ZBI-12 12V 1W 78-1N4742A 1
Power and Protection Block D011 Diode Zener ZBI-25 25V 1W 863-1N5360BRLG 1
Power and Protection Block D012 Diode 10DC1 UF4004 2 Need two UF4004 for one 10DC1
Power and Protection Block D901,D902 Diode 1N60 78-BAT41 2 Ok replacement in a PSU for 1N60
Power and Protection Block VR901,VR902 Resistor Trimpot 5K 652-3352H-1-502LF 2
Power and Protection Block SCR901 SCR 2SF656 821-MCR100-6A1G 1 Reverse the pin order
Power and Protection Block TR010,TR011 Transistor BJT 2SD223 (O, Y, G) 512-KSC5603DTU 2
Power and Protection Block TR901,TR902 Transistor BJT 2SC711 (E, F) KSC1845F 2
Power and Protection Block TR903 Transistor BJT 2SA628 (E, F) KSA1015 1
switch board c739,c740 capacitor electrolytic 3.3 uF 50V 505-MKS2B043301H00KI 2
Tone board c020,C021,C023,hanging off Capacitor Electrolytic 220 uF 50 V POWER 4
Tone board c501,c512,C730,C734,C733,C729,C727,c714,c713,c728 Capacitor Electrolytic 1 uF 50 V 505-MKS2C041001FKI00 10
Tone board C502 Capacitor Electrolytic 100 uF 25 V 647-UKL1V101MPDANATD 1
Tone board C508,c603,c604 Capacitor Electrolytic 47 uF 10 V 647-UKL1V470KPDANATD 3
Tone board C510 Capacitor Electrolytic 10 uF 50 V 647-UKL1J100MED 1
Tone board c607,c608,C705,C706 Capacitor Electrolytic 33 uF 6.3 V 647-UKL1V330KEDANATD 4
Tone board c613,c614,c721,c722 Capacitor Electrolytic 10 uF 25 V 647-UKL1V100MDDANA 4
Tone board C711,C712 Capacitor Electrolytic 33 uF 25 V 647-UKL1V330KEDANATD 2
Tone board c725,c726 Capacitor Electrolytic 47 uF 6.3 V 647-UKL1V470KPDANATD 2
Tone board D020 Diode Zener ZB1 25 0D ZR-125 25 V zener 863-1N5360BRLG 1
Tone board TR020 Transistor BJT 2SD223 hfe 44 512-KSC5603DTU 1
Tone board TR501-TR504,TR601,TR602,TR605,TR606,TR701,TR702,TR703,TR704,TR705,TR706,TR707,TR708 Transistor BJT 2SC871 hfe 417, BCE 512-KSC1845FTA 16
Tone board TR603,TR604 Transistor BJT PNP XA 495C hfe 114, 133 KSA992 2
Board Component Type Subtype Value Voltage Amps Mouser PN Qty Notes
After Driver Board C006 capacitor electrolytic 100 uF 100V Axial 647-TVX2A101MCD 1
After Driver Board capacitor electrolytic 0.1 uF 250 V Axial 667-ECQ-E2104KB 2
AM board capacitor electrolytic 10 uF 16V 1
AM board capacitor electrolytic 100 uF 16V 1
AM board capacitor electrolytic 3.3 uF 25V 505-MKS2B043301H00KI 2
AM board capacitor electrolytic 4.7 uF 25V 1
AM board capacitor electrolytic 33 uF 16V 1
Driver (two of them) C802 Capacitor Electrolytic 100 uF 10V 25v 647-UKL1V101MPDANATD 4
Driver (two of them) C804 Capacitor Electrolytic 220 uF 10V 647-UKL1V221KPD 4
Driver (two of them) C805 Capacitor Electrolytic 4.7 uF 50V 647-UKL1H4R7MDDANA 4
Driver (two of them) C806 Capacitor Electrolytic 3.3 uF 25V 647-UKL1H3R3MDD1TA 4
Driver (two of them) C807 Capacitor Electrolytic 100 uF 50V 647-UKL1H101MPD 4
Driver (two of them) C809 Capacitor Electrolytic 470 uF 6V 647-UKL1V471KHD 4
Driver (two of them) VR801 Resistor Trimpot 100K 652-3352H-1-104LF 4
Driver (two of them) VR802 Resistor Trimpot 1K 652-3352H-1-102LF 4
Driver (two of them) TR801 Transistor BJT 2sc711 (E or F) KSC945CG 4 CG C for ECB pinout and G hFE gain of 300 or so
Driver (two of them) TR802 Transistor BJT 2sc817R (F) KSC1845F 4
Driver (two of them) TR803 Transistor BJT 2sc627 (3) ZTX696 4 Will need a TO-92 heatsink
Driver (two of them) TR803 heatsink Transistor BJT 2sc627 (3) 532-575200B00 4 TO-92 heatsink for ZTX696
Driver (two of them) TR804 Transistor BJT 2SC984 C KSC2690A or KSC2383 4
Driver (two of them) TR805 Transistor BJT 2SC680 (B) MJE15032G 4
Driver (two of them) TR806 Transistor BJT 2SA566 (B) MJE15033G 4
Driver (two of them) hanging underneath C813,C814 Capacitor Electrolytic 0.1 uF 250V 647-UVY2D0R1MED 4
FM IF board C215,C233 capacitor electrolytic 10 uF 25V 2
FM IF board C227 capacitor electrolytic 3.3 uF 50V 505-MKS2B043301H00KI 1
FM IF board C230 capacitor electrolytic 47 uF 16V 1
FM MPX board C402,C407,C416,C417,C419,C420,C429 capacitor electrolytic 10 uF 25V 7
FM MPX board C406,C434 capacitor electrolytic 1 uF 50V 505-MKS2C041001FKI00 2
FM MPX board C428 capacitor electrolytic 0.68 uF 25V 505-MKS2C036801EKF00 1
FM MPX board C433 capacitor electrolytic 47 uF 35V 1
FM MPX board C435 capacitor electrolytic 1 uF 25V 505-MKS2C041001FKI00 1
On bridge Transistor BJT 2SC627 512-TIP48TU 1
Other D001 Bridge DS10BN-M 583-BR84 1
Other C003 capacitor electrolytic 220 uF 10V 647-UPW1E221MPD 1
Other C004 capacitor electrolytic 1000 uF 50V Radial 1in diameter 647-UPW1H102MHD 1
Other C005 Capacitor Electrolytic 3300 uF 100 V 647-LLS2A472MELC 1
Other C005 capacitor electrolytic 3300 uF 100V 647-LLS2A472MELC 1
Other C811,C812 Capacitor Electrolytic 2200 uF 80 V 647-LKG1K222MESCBK 2
Other C811,C812 capacitor electrolytic 2200 uF 80V 647-LKG1K222MESCBK 2
Other D002 Diode SR1FM2 100V 3A 625-UF5401-E3 1
Other TR807-TR810 Transistor Output 2SC1116 (R, O or Y) 863-MJ15024G 4
Power and Protection Block C011,C012,C017 Capacitor Electrolytic 220 uF 50V 647-UPW1H221MPD6 3
Power and Protection Block C017 Capacitor Electrolytic 220 uF 25V 647-UPW1H221MPD6 1
Power and Protection Block C901,C902 Capacitor Electrolytic 1 uF 50V 647-UFW1H010MDD 2
Power and Protection Block D010 Diode Zener ZBI-12 12V 1W 78-1N4742A 1
Power and Protection Block D011 Diode Zener ZBI-25 25V 1W 863-1N5360BRLG 1
Power and Protection Block D012 Diode 10DC1 UF4004 2 Need two UF4004 for one 10DC1
Power and Protection Block D901,D902 Diode 1N60 78-BAT41 2 Ok replacement in a PSU for 1N60
Power and Protection Block VR901,VR902 Resistor Trimpot 5K 652-3352H-1-502LF 2
Power and Protection Block SCR901 SCR 2SF656 821-MCR100-6A1G 1 Reverse the pin order
Power and Protection Block TR010,TR011 Transistor BJT 2SD223 (O, Y, G) 512-KSC5603DTU 2
Power and Protection Block TR901,TR902 Transistor BJT 2SC711 (E, F) KSC1845F 2
Power and Protection Block TR903 Transistor BJT 2SA628 (E, F) KSA1015 1
switch board c739,c740 capacitor electrolytic 3.3 uF 50V 505-MKS2B043301H00KI 2
Tone board c020,C021,C023,hanging off Capacitor Electrolytic 220 uF 50 V POWER 4
Tone board c501,c512,C730,C734,C733,C729,C727,c714,c713,c728 Capacitor Electrolytic 1 uF 50 V 505-MKS2C041001FKI00 10
Tone board C502 Capacitor Electrolytic 100 uF 25 V 647-UKL1V101MPDANATD 1
Tone board C508,c603,c604 Capacitor Electrolytic 47 uF 10 V 647-UKL1V470KPDANATD 3
Tone board C510 Capacitor Electrolytic 10 uF 50 V 647-UKL1J100MED 1
Tone board c607,c608,C705,C706 Capacitor Electrolytic 33 uF 6.3 V 647-UKL1V330KEDANATD 4
Tone board c613,c614,c721,c722 Capacitor Electrolytic 10 uF 25 V 647-UKL1V100MDDANA 4
Tone board C711,C712 Capacitor Electrolytic 33 uF 25 V 647-UKL1V330KEDANATD 2
Tone board c725,c726 Capacitor Electrolytic 47 uF 6.3 V 647-UKL1V470KPDANATD 2
Tone board D020 Diode Zener ZB1 25 0D ZR-125 25 V zener 863-1N5360BRLG 1
Tone board TR020 Transistor BJT 2SD223 hfe 44 512-KSC5603DTU 1
Tone board TR501-TR504,TR601,TR602,TR605,TR606,TR701,TR702,TR703,TR704,TR705,TR706,TR707,TR708 Transistor BJT 2SC871 hfe 417, BCE 512-KSC1845FTA 16
Tone board TR603,TR604 Transistor BJT PNP XA 495C hfe 114, 133 KSA992 2
The Sansui 7000 is more akin to the Eight and Eight Deluxe. The chassises are similar, but the amps are different.
More detail in throughout this thread: http://www.audiokarma.org/forums/index.php?threads/sansui-7000.419599/
perryinva
IS it vintage????
Ok, How does one replace the indicator bulbs? The dial fuse bulbs and pointer bulb are o vious and well documented but the FM-AM-Phono bulbs look they should just pull strait out from where the wires can be seen on the inside. Mine don’t budge! Is there a trick to it? The rest of. my restore is going nicely.
BTW, NOW I know why the unit was switched to low power. For the average user, that gives you some actual range of gain adjustment. Dear lord, talk about your non linear volume pot! The amp is near full power at like 5 on the knob switched to full power! I barely have it past 1 in normal use!
Also, something I haven’t seen mentioned, there is an actual top and bottom on the pushbuttons. The front of each button is sloped a bit. I pulled off all the buttons to clean them and stick on my new labels and two were upside down and not noticed until on the receiver. Then I had to carefully peel them off and reattach them!
Thanks for the BOM, dlucy, it was a good start. Mine has the separate phono board and smaller tone board so all the transistors are different. A few C632AY71 and NEC A640 2L11, which I haven't found a cross for. The Power Protection board is also different, mine as more caps, but mostly the same components. I already had all the common capacitors. Driver boards are identical.
BTW, NOW I know why the unit was switched to low power. For the average user, that gives you some actual range of gain adjustment. Dear lord, talk about your non linear volume pot! The amp is near full power at like 5 on the knob switched to full power! I barely have it past 1 in normal use!
Also, something I haven’t seen mentioned, there is an actual top and bottom on the pushbuttons. The front of each button is sloped a bit. I pulled off all the buttons to clean them and stick on my new labels and two were upside down and not noticed until on the receiver. Then I had to carefully peel them off and reattach them!
Thanks for the BOM, dlucy, it was a good start. Mine has the separate phono board and smaller tone board so all the transistors are different. A few C632AY71 and NEC A640 2L11, which I haven't found a cross for. The Power Protection board is also different, mine as more caps, but mostly the same components. I already had all the common capacitors. Driver boards are identical.
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