Just FYI, if you take the original filter caps and put them on eBay, you can get like $50-60/pair and that will pay for the new ones.
Project: SX-1250 (2nd Take)
- Thread starter Super Noob
- Start date
Just FYI, if you take the original filter caps and put them on eBay, you can get like $50-60/pair and that will pay for the new ones.
allhartfidelity
More gear than sense
Is there a multiplex alignment done or is one needed after work complete on this board?AWE-068 (TUNER)
AWE-068: C4: 220uF 16v CEA: UKA1E221MPD1 220uF / 25v
AWE-068: C10: 0.47uF 50v CEA: MKS2D034701E00JI (WIMA) 0.47uf / 100v
AWE-068: C23: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C25: 470uF 16v CEA: UKA1C471MPD1 470uF / 16v
AWE-068: C26: 4.7uF 25v CEANL: MKS2C044701M00KO00 (WIMA) 4.7uf / 63v
AWE-068: C28: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C29: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C32: 100uF 16v CEA: UKA1E101MED 100uF / 25v
AWE-068: C33: 1uF 50v CEA: MKS2C044701M00KO00 (WIMA) 4.7uf / 63v
AWE-068: C35: 0.1uF 35v CSZA: MKP2C031001F00JS (WIMA) .1uf / 63v
AWE-068: C36: 1uF,25, CEANL: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C38: 1uF,25, CEANL: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C41: 1uF,10, CSZA: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C42: 3.3uF,10, CSZA: MKS2C043301K00KSSD (WIMA) 3.3uf / 63v
AWE-068: C43: 0.22uF,25, CSZA: MKS2C032201B00JA00 (WIMA) .22uf / 63v
AWE-068: C48: 47uF 16v CEA: UKA1E470MDD 47uf / 25v
AWE-068: C56: 10uF,16, CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C59: 0.1uF,35, CSZA: MKP2C031001F00JS (WIMA) .1uf / 63v
AWE-068: C60: 220uF 16v CEA: UKA1E221MPD1 220uF / 25v
AWE-068: C10: 0.47uF 50v CEA: MKS2D034701E00JI (WIMA) 0.47uf / 100v
AWE-068: C61: 47uF 16v, CEANL: UKL1V470KPDANA 47uF / 35v
Super Noob
Super Member
All FM board transistors retained... just electrolytic caps changed. Alignment was and is good - turner works well. I did not touch the factory FM adjustments.
allhartfidelity
More gear than sense
Are the blue egg shaped caps you removed the tantalum folks talk about being bad for the signal path?CONTROL AMP (AWG-041)
AWG-041-A: C1: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C2: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C3: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C4: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C11: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C12: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C13: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C14: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C17: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C18: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C19: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C20: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C27: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C28: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C29: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C30: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C33: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C34: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C35: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C36: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C37: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C38: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C39: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C40: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C43: 10uF 25v CSZA: UKL1V100KDDANA 10uF / 35v
AWG-041-A: C44: 10uF 25v CSZA: UKL1V100KDDANA 10uF / 35v
Q1: 2SC1312: KSC1845FTA
Q2: 2SC1312: KSC1845FTA
Q3: 2SC1312: KSC1845FTA
Q4: 2SC1312: KSC1845FTA
And the little transistors standing there like soldiers are those the noisy one folks talk about where they put newer quieter ones?
Super Noob
Super Member
No tantalum are very low leakage... but generally not liked by most. WIMA films are an improvement and are more expensive compared to electrolytics.
I rebuild power supply board completely. Signal transistors of the small variant lower the noise floor on a before after compare.
Last edited:
allhartfidelity
More gear than sense
Nice. Does this receiver suffer the hot power supply as say the integrateds, or the 1980 needing things shielded or lifted off the board? Not sure its location or if its upside down like the others mentioned.
Conscientious of you to take such great care of the PS given its importance.
kevzep
Its all about the Music
Yes heat, very hot, like a sauna, but not underneath.
The Stabiliser board is vertical next to the right channel power-amp driver board.
This one gets extremely toasty, but you can put some additional heat sinking on, I did with the one I restored, once you have done that, then you are good to go....
Super Noob
Super Member
Kevzep is very respected rebuilder here. He provided good guidance on my Sansui G7500 and my 1st SX-1250. His G-22000 is special unit for sure.
The SX-1250 is almost designed to service, several boards un-plug, with the output heatsinks and top-side boards unplugged and removed and the rest of the boards reasonably accessible it is one of my favorites to restore (and such a pleasure to look at).
I have found several resistors on amplifier, stabilizer, and protection boards that run warm and were out of tolerance however, feel it's a very good idea to test or simply replace any carbon resisors that are in warm areas of these boards to maintain original spec.
I have found several resistors on amplifier, stabilizer, and protection boards that run warm and were out of tolerance however, feel it's a very good idea to test or simply replace any carbon resisors that are in warm areas of these boards to maintain original spec.
Spe@kerBox
Addicted Member
I did that and got roughly $40 for the pair.
MIJ_Pioneer
Super Member
Excellent work, thank you very much for your hard work and documenting this for us. I love that you used film caps, this is the data I am looking for.
I am considering using majority of the cap list here for my rebuild. The transistor list is full, I don't think I am going to go this route due to the volume of work. MattSD's 1250 list has a smaller transistor list but it seems to cover the known problem list. I created a BOM for this, not claiming it is 100% verified, if you use it make sure to double check.
I added two relays as well to this list. In the BOM, remove my notes if you do import it. I found a few caps that were 1:1 voltage ratings, I would like to see a small bump in them for my build.
CONTROL AMP (AWG-041)
AWG-041-A: C1: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C2: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C3: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C4: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C11: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C12: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C13: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C14: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C17: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C18: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C19: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C20: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C27: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C28: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C29: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C30: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C33: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C34: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C35: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C36: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C37: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C38: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C39: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C40: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C43: 10uF 25v CSZA: UKL1V100KDDANA 10uF / 35v
AWG-041-A: C44: 10uF 25v CSZA: UKL1V100KDDANA 10uF / 35v
Q1: 2SC1312: KSC1845FTA
Q2: 2SC1312: KSC1845FTA
Q3: 2SC1312: KSC1845FTA
Q4: 2SC1312: KSC1845FTA
Filter Amp Board (AWM-089-0)
AWM-089-0: C3: 4.7uF 25v CSZA: UKL1H4R7KDDANA 4.7uF / 50v
AWM-089-0: C6: 10uF 25v CSZA: UKT1V100MDD 10uF / 35v
AWM-089-0: C9: 4.7uF 25v CSZA: UKL1H4R7KDDANA 4.7uF / 50v
AWM-089-0: C12: 10uF 25v CSZA: UKT1V100MDD 10uF / 35v
Q1: 2SC1313: KSC1845FTA
Q2: 2SC1313: KSC1845FTA
Flat Amp Board (AWG-042-0)
AWG-042-0: C7: 330uF 63v CEA: UPW1H331MPD 330uf / 63v
AWG-042-0: C8: 330uF 63v CEA: UPW1H331MPD 330uf / 63v
AWG-042-0: C9: 22uF 16v CSZA: UKA1V220MDD 22uF / 35v
AWG-042-0: C10: 22uF 16v CSZA: UKA1V220MDD 22uF / 35v
AWG-042-0: C11: 22uF 16v CSZA: UKA1V220MDD 22uF / 35v
AWG-042-0: C12: 22uF 16v CSZA: UKA1V220MDD 22uF / 35v
AWG-042-0: C21: 100uF 10v CEA: UKL1E220MDDANA 22uF / 35v
AWG-042-0: C22: 100uF 10v CEA: UKL1E220MDDANA 22uF / 35v
AWG-042-0: C27: 220uF 16v CEANL: UKA1E221MPD 220uF / 25v
AWG-042-0: C28: 220uF 16v CEANL: UKA1E221MPD 220uF / 25v
AWG-042-0: C31: 330uF 35v CEA: UPW1H331MPD 330uF / 63v
AWG-042-0: C32: 330uF 35v CEA: UPW1H331MPD 330uF / 63v
Q1: 2SC1775: KSC1845FTA
Q2: 2SC1775: KSC1845FTA
Q3: 2SA872: KSA992FBU
Q4: 2SA872: KSA992FBU
Q7: 2SA725: KSA992FBU
Q8: 2SA725: KSA992FBU
AWS-094 (Function Switch)
C1 Electroylic 220uF 6v:
AWG-094: C1: 220uF 6v: UKA0J221MED 220uF / 10v
Protection Board (AWM-0910)
AWM-091-A: C1: 470uF 6.3v CEA: UKA1E331MPD 470uF / 25v
AWM-091-A: C2: 470uF 6.3v CEA: UKA1E331MPD 470uF / 25v
AWM-091-A: C3: 4.7uF 35v CEA: UPW1H4R7MDD 4.7uF / 50v
AWM-091-A: C4: 100uF 16v CEA: UPW1E101MED 100uF / 35v
AWM-091-A: C5: 100uF 50v CEA: UPW1V101MPD 100uF / 63v
AWM-091-A: C6: 100uF 50v CEA: UPW1V101MPD 100uF / 63v
S1: ASR-010 MY4-02-DC24 relay: 653-MY4-02DC24
Q1: 2SC945
A: KSC2383YTA
Q2: 2SA733: KSA992FBU
Q3: 2SC945A: KSC2383YTA
Q4: 2SC945A: KSC2383YTA
Q5: 2SC1166 (2SC1384): KSC2690AYS
Q6: 2SC1166 (2SC1384): KSC2690AYS
S1: ASR-010 MY4-02-DC24 relay: MY4-02DC24
POWER SUPPLY (AWR-106)
AWR-106: C1: 220uF 80v CEA: UPW2A221MHD6 / 220uF 100v
AWR-106: C2: 220uF 80v CEA: UPW2A221MHD6 / 220uF 100v
AWR-106: C5: 47uF 35v CEA: UPW1H470MED / 47uF 50v
AWR-106: C6: 47uF 35v CEA: UPW1H470MED / 47uF 50v
AWR-106: C7: 22uF 50v CEA: UPW1H220MDD / 22uF 50v
AWR-106: C8: 22uF 50v CEA: UPW1H220MDD / 22uF 50v
AWR-106: C9: 100uF 35v CEA: UPW1H101MPD / 100uF 50v
AWR-106: C10: 100uF 35v CEA: UPW1H101MPD / 100uF 50v
AWR-106: C11: 47uF 80v CEA: UPW2A470MPD/ 47uF 100v
AWR-106: C12: 47uF 80v CEA: UPW2A470MPD/ 47uF 100v
AWR-106: C13: 1000uF 25v CEB: UPW1V102MHD / 1000uF 35v
AWR-106: C15: 47uF 10v CEA: UKA1C470MDD / 47uF 16v
AWR-106: C16: 22uF 10v CEA: UPW1C220MDD / 22uF 16v
AWR-106: C17 220uF 16v CEA: UPW1E221MPD / 220uF 25v
AWR-106: C18: 47uF 10v CEA: UKA1C470MDD / 47uF 16v
AWR-106: C19: 47uF 10v CEA: UKA1C470MDD / 47uF 16v
AWR-106: VR1: 4.7K Ohm: 3386H-1-502LF 5K Ohm (Single Turn)
AWR-106: VR2: 4.7K Ohm: 3386H-1-502LF 5K Ohm (Single Turn)
AWR-106: Q1 2SD313: KSC2073TU
AWR-106: Q2 2SC869: KSC2383YBU
AWR-106: Q3 2C1318: KSC1845FTA
AWR-106: Q4 2SC1384:KSC2690AYS
AWR-106: Q5 2SB507: KSA940TU
AWR-106: Q6 2SA628: KSA1013YBU
AWR-106: Q7 2SA720: KSA992FBU
AWR-106: Q8 2SA684: KSA1220YSTU
AWR-106: Q9 2SD325: KSC2073TU
AWR-106: Q10 2SC945: 512-KSC2383YTA
AWR-106: Q11 2SC945: KSC1845FTA
AWR-106: Q12 2SD325: KSC2073TU
AWR-106: Q13 2SC945: 512-KSC2383YTA
AWR-106: D1 WZ-240: 1N5252B
AWR-106: D2 1S2473: 1N4148
AWR-106: D3 WZ-240: 1N5252B
AWR-106: D4 1S2473: 1N4148
AWR-106: D5 WZ-061: 1N5234B
AWR-106: D6 1S2473: 1N4148
S1: ASR-010 MY4-02-DC24 relay: 653-MY4-02DC24
I am considering using majority of the cap list here for my rebuild. The transistor list is full, I don't think I am going to go this route due to the volume of work. MattSD's 1250 list has a smaller transistor list but it seems to cover the known problem list. I created a BOM for this, not claiming it is 100% verified, if you use it make sure to double check.
I added two relays as well to this list. In the BOM, remove my notes if you do import it. I found a few caps that were 1:1 voltage ratings, I would like to see a small bump in them for my build.
CONTROL AMP (AWG-041)
AWG-041-A: C1: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C2: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C3: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C4: 4.7uF 25v CSZA: UKL1H4R7KDDANA / 4.7uF 50v (due to space)
AWG-041-A: C11: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C12: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C13: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C14: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C17: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C18: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C19: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C20: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C27: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C28: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C29: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C30: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C33: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C34: 100uF 10v CEA: UKA1C101MDD1TD 100uF / 16v
AWG-041-A: C35: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C36: 2.2uF 50v CEANL: MKS2C042201K00JO00 / 2.2uF 63v
AWG-041-A: C37: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C38: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C39: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C40: 100uF 16v CEA: UKA1V101MED1TD 100uF / 35v
AWG-041-A: C43: 10uF 25v CSZA: UKL1V100KDDANA 10uF / 35v
AWG-041-A: C44: 10uF 25v CSZA: UKL1V100KDDANA 10uF / 35v
Q1: 2SC1312: KSC1845FTA
Q2: 2SC1312: KSC1845FTA
Q3: 2SC1312: KSC1845FTA
Q4: 2SC1312: KSC1845FTA
Filter Amp Board (AWM-089-0)
AWM-089-0: C3: 4.7uF 25v CSZA: UKL1H4R7KDDANA 4.7uF / 50v
AWM-089-0: C6: 10uF 25v CSZA: UKT1V100MDD 10uF / 35v
AWM-089-0: C9: 4.7uF 25v CSZA: UKL1H4R7KDDANA 4.7uF / 50v
AWM-089-0: C12: 10uF 25v CSZA: UKT1V100MDD 10uF / 35v
Q1: 2SC1313: KSC1845FTA
Q2: 2SC1313: KSC1845FTA
Flat Amp Board (AWG-042-0)
AWG-042-0: C7: 330uF 63v CEA: UPW1H331MPD 330uf / 63v
AWG-042-0: C8: 330uF 63v CEA: UPW1H331MPD 330uf / 63v
AWG-042-0: C9: 22uF 16v CSZA: UKA1V220MDD 22uF / 35v
AWG-042-0: C10: 22uF 16v CSZA: UKA1V220MDD 22uF / 35v
AWG-042-0: C11: 22uF 16v CSZA: UKA1V220MDD 22uF / 35v
AWG-042-0: C12: 22uF 16v CSZA: UKA1V220MDD 22uF / 35v
AWG-042-0: C21: 100uF 10v CEA: UKL1E220MDDANA 22uF / 35v
AWG-042-0: C22: 100uF 10v CEA: UKL1E220MDDANA 22uF / 35v
AWG-042-0: C27: 220uF 16v CEANL: UKA1E221MPD 220uF / 25v
AWG-042-0: C28: 220uF 16v CEANL: UKA1E221MPD 220uF / 25v
AWG-042-0: C31: 330uF 35v CEA: UPW1H331MPD 330uF / 63v
AWG-042-0: C32: 330uF 35v CEA: UPW1H331MPD 330uF / 63v
Q1: 2SC1775: KSC1845FTA
Q2: 2SC1775: KSC1845FTA
Q3: 2SA872: KSA992FBU
Q4: 2SA872: KSA992FBU
Q7: 2SA725: KSA992FBU
Q8: 2SA725: KSA992FBU
AWS-094 (Function Switch)
C1 Electroylic 220uF 6v:
AWG-094: C1: 220uF 6v: UKA0J221MED 220uF / 10v
Protection Board (AWM-0910)
AWM-091-A: C1: 470uF 6.3v CEA: UKA1E331MPD 470uF / 25v
AWM-091-A: C2: 470uF 6.3v CEA: UKA1E331MPD 470uF / 25v
AWM-091-A: C3: 4.7uF 35v CEA: UPW1H4R7MDD 4.7uF / 50v
AWM-091-A: C4: 100uF 16v CEA: UPW1E101MED 100uF / 35v
AWM-091-A: C5: 100uF 50v CEA: UPW1V101MPD 100uF / 63v
AWM-091-A: C6: 100uF 50v CEA: UPW1V101MPD 100uF / 63v
S1: ASR-010 MY4-02-DC24 relay: 653-MY4-02DC24
Q1: 2SC945
A: KSC2383YTA
Q2: 2SA733: KSA992FBU
Q3: 2SC945A: KSC2383YTA
Q4: 2SC945A: KSC2383YTA
Q5: 2SC1166 (2SC1384): KSC2690AYS
Q6: 2SC1166 (2SC1384): KSC2690AYS
S1: ASR-010 MY4-02-DC24 relay: MY4-02DC24
POWER SUPPLY (AWR-106)
AWR-106: C1: 220uF 80v CEA: UPW2A221MHD6 / 220uF 100v
AWR-106: C2: 220uF 80v CEA: UPW2A221MHD6 / 220uF 100v
AWR-106: C5: 47uF 35v CEA: UPW1H470MED / 47uF 50v
AWR-106: C6: 47uF 35v CEA: UPW1H470MED / 47uF 50v
AWR-106: C7: 22uF 50v CEA: UPW1H220MDD / 22uF 50v
AWR-106: C8: 22uF 50v CEA: UPW1H220MDD / 22uF 50v
AWR-106: C9: 100uF 35v CEA: UPW1H101MPD / 100uF 50v
AWR-106: C10: 100uF 35v CEA: UPW1H101MPD / 100uF 50v
AWR-106: C11: 47uF 80v CEA: UPW2A470MPD/ 47uF 100v
AWR-106: C12: 47uF 80v CEA: UPW2A470MPD/ 47uF 100v
AWR-106: C13: 1000uF 25v CEB: UPW1V102MHD / 1000uF 35v
AWR-106: C15: 47uF 10v CEA: UKA1C470MDD / 47uF 16v
AWR-106: C16: 22uF 10v CEA: UPW1C220MDD / 22uF 16v
AWR-106: C17 220uF 16v CEA: UPW1E221MPD / 220uF 25v
AWR-106: C18: 47uF 10v CEA: UKA1C470MDD / 47uF 16v
AWR-106: C19: 47uF 10v CEA: UKA1C470MDD / 47uF 16v
AWR-106: VR1: 4.7K Ohm: 3386H-1-502LF 5K Ohm (Single Turn)
AWR-106: VR2: 4.7K Ohm: 3386H-1-502LF 5K Ohm (Single Turn)
AWR-106: Q1 2SD313: KSC2073TU
AWR-106: Q2 2SC869: KSC2383YBU
AWR-106: Q3 2C1318: KSC1845FTA
AWR-106: Q4 2SC1384:KSC2690AYS
AWR-106: Q5 2SB507: KSA940TU
AWR-106: Q6 2SA628: KSA1013YBU
AWR-106: Q7 2SA720: KSA992FBU
AWR-106: Q8 2SA684: KSA1220YSTU
AWR-106: Q9 2SD325: KSC2073TU
AWR-106: Q10 2SC945: 512-KSC2383YTA
AWR-106: Q11 2SC945: KSC1845FTA
AWR-106: Q12 2SD325: KSC2073TU
AWR-106: Q13 2SC945: 512-KSC2383YTA
AWR-106: D1 WZ-240: 1N5252B
AWR-106: D2 1S2473: 1N4148
AWR-106: D3 WZ-240: 1N5252B
AWR-106: D4 1S2473: 1N4148
AWR-106: D5 WZ-061: 1N5234B
AWR-106: D6 1S2473: 1N4148
S1: ASR-010 MY4-02-DC24 relay: 653-MY4-02DC24
MIJ_Pioneer
Super Member
Continued (hit the 12000 character limit ofr a post)
POWER AMP (AWH-048) – Quantity 2
AWH-048: C2 10uF 16v CEANL: UKL1E100MDDANA 10uF / 25v
AWH-048 C5 220 16 CEANL: UKA1E221MPD 220uF / 25v
AWH-048: C11: .22uF 10v CSZA: MKS2C032201B00JA .22uF / 63v
AWH-048: C15: 470uF 80v CEA: UPW2A471MHD 470uF / 100v
AWH-048: C15: 470uF 80v CEA: UPW2A471MHD 470uF / 100v
AWH-048: Q1 2SA750: KSA992FBU (HFE Matched)
AWH-048: Q2 2SA750: KSA992FBU (HFE Matched)
AWH-048: Q3 2SC1439 : KSC3503DSTU
AWH-048: Q4 2SC1439: KSC3503DSTU
AWH-048: Q5 2SA858: KSA1381ESTU
AWH-048: Q6 2SA858: KSA1381ESTU
AWH-048: Q11: 2SC869: 512-KSC2383YTA
AWH-048: VR1 500 Ohm: 25 Turns = 3296P-1-501LF
AWH-048: VR2 500 Ohm: 1 Turn = 3386H-1-501LF
AWH-048: D3: 1S1886: 1N4004
AWH-048: D4: 1S1886: 1N4004
AWH-048: D5: 1S2473: 1N4148
AWH-048: D6: 1S1886: 1N4004
AWH-048: D7: 1S1886: 1N4004
AWH-048: D8: 1S2471: 1N4148
AWH-048: D9: 1S2471: 1N4148
AWH-048: D10: 1S1886: 1N4004
AWH-048: D11: 1S1886: 1N4004
Power Supply Assembly (AWR-107)
AWR-107: C6: 470uF 100v CEB: MAL213819471E3 Vishay 470uF / 100v (105c)
AWR-107: C7: 470uF 100v CEB: MAL213819471E3 Vishay 470uF / 100v (105c)
AWR-107: C8: 470uF 25v CEA: UPW1V471MPD 470uF / 35v
AWR-107: C9: 470uF 25v CEA: UPW1V471MPD 470uF / 35v
AWR-107: D1: SIB01-04: VISHAY UF4005-M3/54 / 1 AMP / 600V (Ultra Fast Recovery)
AWR-107: D2: SIB01-04: VISHAY UF4005-M3/54 / 1 AMP / 600V (Ultra Fast Recovery)
AWR-107: D3: SIB01-04: VISHAY UF4005-M3/54 / 1 AMP / 600V (Ultra Fast Recovery)
AWR-107: D4: SIB01-04: VISHAY UF4005-M3/54 / 1 AMP / 600V (Ultra Fast Recovery)
AWR-107: D5: SIB01-01: ONSEMI 1N4004G 1 AMP / 400V
AWR-107: D6: SIB01-01: ONSEMI 1N4004G 1 AMP / 400V
Equalizer Amp Board (AWF-021-A)
AWF-021-A: C11: 470uF 6.3v CEA: UKA1E331MPD 470uF / 25v
AWF-021-A: C12: 470uF 6.3v CEA: UKA1E331MPD 470uF / 25v
AWF-021-A: C17: 3.3uF 50v CEANL: WIMA MKS2C043301K00KSSD 3.3uF / 63v
AWF-021-A: C18: 3.3uF 50v CEANL: WIMA MKS2C043301K00KSSD 3.3uF / 63v
AWF-021-A: C25: 22uF 16v CSZA: UKL1E220KDDANA 22uF 25v
AWF-021-A: C26: 22uF 16v CSZA: UKL1E220KDDANA 22uF 25v
AWF-021-A: C27: 220uF 63v CEA: UPW2A221MHD6 220uF / 100v
AWF-021-A: C28: 220uF 63v CEA: UPW2A221MHD6 220uF / 100v
AWF-021-A: C29: 100uF 35v CEA: UKA1V101MED 100uF / 35v
AWF-021-A: C30: 22uF 16v CSZA: UKL1E220KDDANA 22uF 25v
AWF-021-A: C31: 22uF 16v CSZA: UKL1E220KDDANA 22uF 25v
AWF-021-A: C32: 100uF 35v CEA: UKA1V101MED 100uF / 35v
Q1: 2SA726: KSA992FBU (HFE Matched)
Q2: 2SA726: KSA992FBU (HFE Matched)
Q3: 2SA726: KSA992FBU (HFE Matched)
Q4: 2SA726: KSA992FBU (HFE Matched)
Q5: 2SC1775: KSC1845FTA
Q6: 2SC1775: KSC1845FTA
Q7: 2SC1775: KSC1845FTA
Q8: 2SC1775: KSC1845FTA
Q9: 2SA872: KSA992FBU
Q10: 2SA872: KSA992FBU
Q11: 2SC1735: KSC2690AYS
Q12: 2SC869: KSC2383YTA
Q13: 2SA850: KSA1220AYS
Q14: 2SA628A: KSA1013YBU
D1: 1S2473: 1N4148
D2: 1S2473: 1N4148
D3: 1S2473: 1N4148
D4: 1S2473: 1N4148
D5: WZ-240: 1N5252B
D6: WZ-240: 1N5252B
AWE-068 (TUNER)
AWE-068: C4: 220uF 16v CEA: UKA1E221MPD1 220uF / 25v
AWE-068: C10: 0.47uF 50v CEA: MKS2D034701E00JI (WIMA) 0.47uf / 100v
AWE-068: C23: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C25: 470uF 16v CEA: UKA1E331MPD 470uF / 25v
AWE-068: C26: 4.7uF 25v CEANL: MKS2C044701M00KO00 (WIMA) 4.7uf / 63v
AWE-068: C28: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C29: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C32: 100uF 16v CEA: UKA1E101MED 100uF / 25v
AWE-068: C33: 1uF 50v CEA: MKS2C044701M00KO00 (WIMA) 4.7uf / 63v
AWE-068: C35: 0.1uF 35v CSZA: MKP2C031001F00JS (WIMA) .1uf / 63v
AWE-068: C36: 1uF,25, CEANL: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C38: 1uF,25, CEANL: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C41: 1uF,10, CSZA: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C42: 3.3uF,10, CSZA: MKS2C043301K00KSSD (WIMA) 3.3uf / 63v
AWE-068: C43: 0.22uF,25, CSZA: MKS2C032201B00JA .22uF / 63v
AWE-068: C48: 47uF 16v CEA: UKA1E470MDD 47uf / 25v
AWE-068: C56: 10uF,16, CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C59: 0.1uF,35, CSZA: MKP2C031001F00JS (WIMA) .1uf / 63v
AWE-068: C60: 220uF 16v CEA: UKA1E221MPD1 220uF / 25v
AWE-068: C10: 0.47uF 50v CEA: MKS2D034701E00JI (WIMA) 0.47uf / 100v
AWE-068: C61: 47uF 16v, CEANL: UKL1V470KPDANA 47uF / 35v
Main Filter Caps (Qty 4):
22,000 uF 80v CEA: E36D101LPN223TDB7M 22,000 uF / 100v
Bypass Caps (Stacked Film): Panasonic 2.2uF 250v ECQ-E2225KFB
BOM:
UKL1H4R7KDDANA | 6
MKS2C042201K00JO00 | 12
UKA1C101MDD1TD | 4
UKA1V101MED1TD | 6 - Two one the eq board may need a voltage bump
UKL1V100KDDANA | 2
UKT1V100MDD | 2
UPW1H331MPD | 4
UKA1V220MDD | 4
UKL1E220MDDANA | 2
UKA1E221MPD | 6
UKA0J221MED | 1
UKA1E331MPD | 5
UPW1H4R7MDD | 1
UPW1E101MED | 1
UPW1V101MPD | 2
653-MY4-02DC24 | 1
653-LY2-DC48 | 1
UPW2A221MHD6 | 4
UPW1H470MED | 2
UPW1H220MDD | 2 - Upgrade voltage
UPW1H101MPD | 2
UPW2A470MPD | 2
UPW1V102MHD | 1
UKA1C470MDD | 3
UPW1C220MDD | 1 - Upgrade voltage
UPW1E221MPD | 1
3386H-1-502LF | 2
1N5252B | 4
1N4148 | 13
512-1N5234B | 1
UKL1E100MDDANA | 6
MKS2C032201B00JA | 3
UPW2A471MHD | 4
3296P-1-501LF 2
3386H-1-501LF | 2
1N4004G | 14 - Double check
MAL213819471E3 | 2
UPW1V471MPD | 2
UF4005-M3/54 | 4
UKL1E220KDDANA | 4
MKS2D034701E00JI | 2
MKS2C044701M00KO00 | 2
UKA1E101MED | 1
MKP2C031001F00JS | 2
MKS2C041001F00JC00 | 3
MKS2C043301K00KSSD | 3
UKA1E470MDD | 1
UKL1V470KPDANA | 1
ECQ-E2225KFB | 4
653-MY4-02DC24 | 1
KSC1845FTA | 14
KSA992FBU | 25
512-KSC2383YTA | 6
KSC2690AYS | 4
KSC2073TU | 3
KSC2383YBU | 3
KSA940TU | 1
KSA1013YBU | 2
512-KSA1220AYS | 1
KSC3503DSTU | 4
KSA1381ESTU | 4
KSC2310YBU | 2 - Not available
KSA1220AYS | 1
512-KSA1220AYS | 1
512-KSC2383YTA | 4
POWER AMP (AWH-048) – Quantity 2
AWH-048: C2 10uF 16v CEANL: UKL1E100MDDANA 10uF / 25v
AWH-048 C5 220 16 CEANL: UKA1E221MPD 220uF / 25v
AWH-048: C11: .22uF 10v CSZA: MKS2C032201B00JA .22uF / 63v
AWH-048: C15: 470uF 80v CEA: UPW2A471MHD 470uF / 100v
AWH-048: C15: 470uF 80v CEA: UPW2A471MHD 470uF / 100v
AWH-048: Q1 2SA750: KSA992FBU (HFE Matched)
AWH-048: Q2 2SA750: KSA992FBU (HFE Matched)
AWH-048: Q3 2SC1439 : KSC3503DSTU
AWH-048: Q4 2SC1439: KSC3503DSTU
AWH-048: Q5 2SA858: KSA1381ESTU
AWH-048: Q6 2SA858: KSA1381ESTU
AWH-048: Q11: 2SC869: 512-KSC2383YTA
AWH-048: VR1 500 Ohm: 25 Turns = 3296P-1-501LF
AWH-048: VR2 500 Ohm: 1 Turn = 3386H-1-501LF
AWH-048: D3: 1S1886: 1N4004
AWH-048: D4: 1S1886: 1N4004
AWH-048: D5: 1S2473: 1N4148
AWH-048: D6: 1S1886: 1N4004
AWH-048: D7: 1S1886: 1N4004
AWH-048: D8: 1S2471: 1N4148
AWH-048: D9: 1S2471: 1N4148
AWH-048: D10: 1S1886: 1N4004
AWH-048: D11: 1S1886: 1N4004
Power Supply Assembly (AWR-107)
AWR-107: C6: 470uF 100v CEB: MAL213819471E3 Vishay 470uF / 100v (105c)
AWR-107: C7: 470uF 100v CEB: MAL213819471E3 Vishay 470uF / 100v (105c)
AWR-107: C8: 470uF 25v CEA: UPW1V471MPD 470uF / 35v
AWR-107: C9: 470uF 25v CEA: UPW1V471MPD 470uF / 35v
AWR-107: D1: SIB01-04: VISHAY UF4005-M3/54 / 1 AMP / 600V (Ultra Fast Recovery)
AWR-107: D2: SIB01-04: VISHAY UF4005-M3/54 / 1 AMP / 600V (Ultra Fast Recovery)
AWR-107: D3: SIB01-04: VISHAY UF4005-M3/54 / 1 AMP / 600V (Ultra Fast Recovery)
AWR-107: D4: SIB01-04: VISHAY UF4005-M3/54 / 1 AMP / 600V (Ultra Fast Recovery)
AWR-107: D5: SIB01-01: ONSEMI 1N4004G 1 AMP / 400V
AWR-107: D6: SIB01-01: ONSEMI 1N4004G 1 AMP / 400V
Equalizer Amp Board (AWF-021-A)
AWF-021-A: C11: 470uF 6.3v CEA: UKA1E331MPD 470uF / 25v
AWF-021-A: C12: 470uF 6.3v CEA: UKA1E331MPD 470uF / 25v
AWF-021-A: C17: 3.3uF 50v CEANL: WIMA MKS2C043301K00KSSD 3.3uF / 63v
AWF-021-A: C18: 3.3uF 50v CEANL: WIMA MKS2C043301K00KSSD 3.3uF / 63v
AWF-021-A: C25: 22uF 16v CSZA: UKL1E220KDDANA 22uF 25v
AWF-021-A: C26: 22uF 16v CSZA: UKL1E220KDDANA 22uF 25v
AWF-021-A: C27: 220uF 63v CEA: UPW2A221MHD6 220uF / 100v
AWF-021-A: C28: 220uF 63v CEA: UPW2A221MHD6 220uF / 100v
AWF-021-A: C29: 100uF 35v CEA: UKA1V101MED 100uF / 35v
AWF-021-A: C30: 22uF 16v CSZA: UKL1E220KDDANA 22uF 25v
AWF-021-A: C31: 22uF 16v CSZA: UKL1E220KDDANA 22uF 25v
AWF-021-A: C32: 100uF 35v CEA: UKA1V101MED 100uF / 35v
Q1: 2SA726: KSA992FBU (HFE Matched)
Q2: 2SA726: KSA992FBU (HFE Matched)
Q3: 2SA726: KSA992FBU (HFE Matched)
Q4: 2SA726: KSA992FBU (HFE Matched)
Q5: 2SC1775: KSC1845FTA
Q6: 2SC1775: KSC1845FTA
Q7: 2SC1775: KSC1845FTA
Q8: 2SC1775: KSC1845FTA
Q9: 2SA872: KSA992FBU
Q10: 2SA872: KSA992FBU
Q11: 2SC1735: KSC2690AYS
Q12: 2SC869: KSC2383YTA
Q13: 2SA850: KSA1220AYS
Q14: 2SA628A: KSA1013YBU
D1: 1S2473: 1N4148
D2: 1S2473: 1N4148
D3: 1S2473: 1N4148
D4: 1S2473: 1N4148
D5: WZ-240: 1N5252B
D6: WZ-240: 1N5252B
AWE-068 (TUNER)
AWE-068: C4: 220uF 16v CEA: UKA1E221MPD1 220uF / 25v
AWE-068: C10: 0.47uF 50v CEA: MKS2D034701E00JI (WIMA) 0.47uf / 100v
AWE-068: C23: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C25: 470uF 16v CEA: UKA1E331MPD 470uF / 25v
AWE-068: C26: 4.7uF 25v CEANL: MKS2C044701M00KO00 (WIMA) 4.7uf / 63v
AWE-068: C28: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C29: 10uF 16v CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C32: 100uF 16v CEA: UKA1E101MED 100uF / 25v
AWE-068: C33: 1uF 50v CEA: MKS2C044701M00KO00 (WIMA) 4.7uf / 63v
AWE-068: C35: 0.1uF 35v CSZA: MKP2C031001F00JS (WIMA) .1uf / 63v
AWE-068: C36: 1uF,25, CEANL: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C38: 1uF,25, CEANL: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C41: 1uF,10, CSZA: MKS2C041001F00JC00 (WIMA) 1uf / 63v
AWE-068: C42: 3.3uF,10, CSZA: MKS2C043301K00KSSD (WIMA) 3.3uf / 63v
AWE-068: C43: 0.22uF,25, CSZA: MKS2C032201B00JA .22uF / 63v
AWE-068: C48: 47uF 16v CEA: UKA1E470MDD 47uf / 25v
AWE-068: C56: 10uF,16, CSZA: UKL1E100MDDANA 10uF / 25v
AWE-068: C59: 0.1uF,35, CSZA: MKP2C031001F00JS (WIMA) .1uf / 63v
AWE-068: C60: 220uF 16v CEA: UKA1E221MPD1 220uF / 25v
AWE-068: C10: 0.47uF 50v CEA: MKS2D034701E00JI (WIMA) 0.47uf / 100v
AWE-068: C61: 47uF 16v, CEANL: UKL1V470KPDANA 47uF / 35v
Main Filter Caps (Qty 4):
22,000 uF 80v CEA: E36D101LPN223TDB7M 22,000 uF / 100v
Bypass Caps (Stacked Film): Panasonic 2.2uF 250v ECQ-E2225KFB
BOM:
UKL1H4R7KDDANA | 6
MKS2C042201K00JO00 | 12
UKA1C101MDD1TD | 4
UKA1V101MED1TD | 6 - Two one the eq board may need a voltage bump
UKL1V100KDDANA | 2
UKT1V100MDD | 2
UPW1H331MPD | 4
UKA1V220MDD | 4
UKL1E220MDDANA | 2
UKA1E221MPD | 6
UKA0J221MED | 1
UKA1E331MPD | 5
UPW1H4R7MDD | 1
UPW1E101MED | 1
UPW1V101MPD | 2
653-MY4-02DC24 | 1
653-LY2-DC48 | 1
UPW2A221MHD6 | 4
UPW1H470MED | 2
UPW1H220MDD | 2 - Upgrade voltage
UPW1H101MPD | 2
UPW2A470MPD | 2
UPW1V102MHD | 1
UKA1C470MDD | 3
UPW1C220MDD | 1 - Upgrade voltage
UPW1E221MPD | 1
3386H-1-502LF | 2
1N5252B | 4
1N4148 | 13
512-1N5234B | 1
UKL1E100MDDANA | 6
MKS2C032201B00JA | 3
UPW2A471MHD | 4
3296P-1-501LF 2
3386H-1-501LF | 2
1N4004G | 14 - Double check
MAL213819471E3 | 2
UPW1V471MPD | 2
UF4005-M3/54 | 4
UKL1E220KDDANA | 4
MKS2D034701E00JI | 2
MKS2C044701M00KO00 | 2
UKA1E101MED | 1
MKP2C031001F00JS | 2
MKS2C041001F00JC00 | 3
MKS2C043301K00KSSD | 3
UKA1E470MDD | 1
UKL1V470KPDANA | 1
ECQ-E2225KFB | 4
653-MY4-02DC24 | 1
KSC1845FTA | 14
KSA992FBU | 25
512-KSC2383YTA | 6
KSC2690AYS | 4
KSC2073TU | 3
KSC2383YBU | 3
KSA940TU | 1
KSA1013YBU | 2
512-KSA1220AYS | 1
KSC3503DSTU | 4
KSA1381ESTU | 4
KSC2310YBU | 2 - Not available
KSA1220AYS | 1
512-KSA1220AYS | 1
512-KSC2383YTA | 4
Although a "small bump" shouldn't hurt anything, most if not all caps have voltage ratings that are adequate and unless you identify a particular need I wouldn't both bumping them.
MIJ_Pioneer
Super Member
I figured so with the caps... Once again, thank you for the data you posted. I am very grateful.
Question regarding transistors. Im noticing some variants being used. Some of which I am having a hard time finding documented. For example, the AWR-106 power board, i've made bold the diffrent choices. Any idea why diffrent transistors were chosen?
AWR-106
MattSD List:
Q1: 2SD313: 863-MJE15032G
Q5: 2SB507: 863-MJE15033G
Q9: 2SD325: 863-MJE15032G
Q12: 2SD325: 863-MJE15032G
Your list:
AWR-106: Q1 2SD313: KSC2073TU
AWR-106: Q5 2SB507: KSA940TU
AWR-106: Q9 2SD325: KSC2073TU
AWR-106: Q12 2SD325: KSC2073TU
AWH-048:
According to this list, your choice is correct https://audiokarma.org/forums/index.php?threads/sx1250-transistor-repalcements.844005/#post-12110330
MattSD:
Q11: 2SC869: 512-KSC1845FTA
Your List:
AWH-048: Q11: 2SC869: 512-KSC2383YTA
AWF-021
MattSD List:
Q11: 2SC1735: 512-KSC2383YTA
Q13: 2SA850: 512-KSA1013YBU
Your List:
Q11: 2SC1735: KSC2690AYS
Q13: 2SA850: KSA1220AYS
Question regarding transistors. Im noticing some variants being used. Some of which I am having a hard time finding documented. For example, the AWR-106 power board, i've made bold the diffrent choices. Any idea why diffrent transistors were chosen?
AWR-106
MattSD List:
Q1: 2SD313: 863-MJE15032G
Q5: 2SB507: 863-MJE15033G
Q9: 2SD325: 863-MJE15032G
Q12: 2SD325: 863-MJE15032G
Your list:
AWR-106: Q1 2SD313: KSC2073TU
AWR-106: Q5 2SB507: KSA940TU
AWR-106: Q9 2SD325: KSC2073TU
AWR-106: Q12 2SD325: KSC2073TU
AWH-048:
According to this list, your choice is correct https://audiokarma.org/forums/index.php?threads/sx1250-transistor-repalcements.844005/#post-12110330
MattSD:
Q11: 2SC869: 512-KSC1845FTA
Your List:
AWH-048: Q11: 2SC869: 512-KSC2383YTA
AWF-021
MattSD List:
Q11: 2SC1735: 512-KSC2383YTA
Q13: 2SA850: 512-KSA1013YBU
Your List:
Q11: 2SC1735: KSC2690AYS
Q13: 2SA850: KSA1220AYS
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I have a completely rebuilt 1250, but she is unusable. That damned Alps pot on the volume knob never got cleaned properly, so it's noisy A.F. I believe it needs an ultrasonic bath, but being sealed, I guess that won't happen. Unsure what to do with it at the moment, I'm no tech.
This looks like quality work, congrats on restoring another beauty.
This looks like quality work, congrats on restoring another beauty.
KingBubba
"Too Much Stuff"
James, the Alps pots are screwed together. On mine, I loosened the screws just enough to get the tip of my Deoxit needle bottle into each slice. I also did the Faderlube treatment and followed with Caig Shield. This will keep your pot in tip top shape for a long time.
Super Noob, it was the correct choice to do your filter caps. You can see on the bottom of those caps a little pimple between the contacts. That is a sure sign that the cap is on its way to filling your receiver full of nasty goo. I hope you did a solid cleaning of the switches, especially the ones on the flat amp board. They are a severe issue on the 1250. The use of Shield following a cleaning keeps the contacts from corroding again. I had my 1250 done by mattsd a few years back and already the filter switches are dropping out. I assume he did not use Shield or Gold from Caig. Shield is for severe environments, like the heavy humidity here in Florida. Gold is used in clean environments. This thread was a real jewel for us 1250 owners. Many thanks to you for all your serious effort.
Super Noob, it was the correct choice to do your filter caps. You can see on the bottom of those caps a little pimple between the contacts. That is a sure sign that the cap is on its way to filling your receiver full of nasty goo. I hope you did a solid cleaning of the switches, especially the ones on the flat amp board. They are a severe issue on the 1250. The use of Shield following a cleaning keeps the contacts from corroding again. I had my 1250 done by mattsd a few years back and already the filter switches are dropping out. I assume he did not use Shield or Gold from Caig. Shield is for severe environments, like the heavy humidity here in Florida. Gold is used in clean environments. This thread was a real jewel for us 1250 owners. Many thanks to you for all your serious effort.
First, THANK YOU for this advice, KingBubba. Not disparaging the man's work, but mattsd was who did this one. Otherwise, fantastic work and fair price, but finding cat hair on your VU meters and having the switches and volume knob virtually not working only 4 years later, well, it is frustrating.
Super Noob
Super Member
I follow MTF recommendations... Looks AWH-048 (Q11) could go either way.
https://audiokarma.org/forums/index...50-recap-and-restoration-thread.420950/page-6
https://audiokarma.org/forums/index...p-and-rehab-posts-of-importance.225933/page-4
Best Regards.
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Spe@kerBox
Addicted Member
I used these per above with no issues:
AWR-106: Q1 2SD313: KSC2073TU
AWR-106: Q5 2SB507: KSA940TU
AWR-106: Q9 2SD325: KSC2073TU
AWR-106: Q12 2SD325: KSC2073TU
AWR-106: Q1 2SD313: KSC2073TU
AWR-106: Q5 2SB507: KSA940TU
AWR-106: Q9 2SD325: KSC2073TU
AWR-106: Q12 2SD325: KSC2073TU
Beautiful work my friend!Final Pics:
Looks as good as it sounds. Hope these posts inspire some folks to rebuild their SX-xx50 receivers.
Best Regards & Thanks for Viewing.