MIJ_Pioneer
Super Member
After enjoying my 7070 for a while, the 9090 has always been on the list. Well, one fell in my lap! This one is 10/10 cosmetically. It had (has) an issue with the Dolby board. I picked it up in hopes that I could defeat the Dolby board issue, applied all the known fixes, and still couldn't get it 100%. With that said it has been bypassed. I know I know, it should be fixed but after three full days of attention it was time to throw in the towel on that board. I've got my eye out for a replacement one of these days.
My thread on the Dolby board if anyone is interested: https://audiokarma.org/forums/index.php?threads/9090db-dolby-board-help.917332/
It sounds amazing. Has that beautiful strong bass that separates Sansui from the rest.
BOM:

F2655 Dolby NR Circuit Board (sucks)
* note probably can use for the 10uf 16v instead of low leakage UKL
Electrolytic Caps
C-605 100uF 6.3V E.C 4mm 647-UPW1E101MED1TD 25v
C-09 10uF 16V E.C 5mm 647-UKL1J100KED 63v
C-10 10uF 16V E.C 5mm 647-UKL1J100KED 63v
C-11 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-12 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-13 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-14 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-15 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-16 10uF 16V E.C 7mm 647-UKL1J100KED 63v
C-19 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-20 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-21 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-22 10uF 16V E.C 3mm 647-UKL1J100KED 63v
C-29 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-30 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-35 10uF 16V E.C 647-UKL1J100KED 63v
C-38 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-606 100uF 16V E.C 5mm 647-UPW1E101MED1TD 25v
C-01 47uF 16V E.C 3mm / 6mm 647-UPW1V4R7MDD 35v
C-02 47uF 16V E.C 3mm / 6mm 647-UPW1V4R7MDD 35v
C-41 1uF / Audio 50V E.C 2.5mm / 5mm 505-MKS21.0/63/5 63v
C-42 1uF / Audio 50V E.C 2.5mm / 5mm 505-MKS21.0/63/5 63v
C-608 1uF / Audio 50V E.C 2.5mm / 4mm 505-MKS21.0/63/5 63v
C-36 10uF / Audio 25V E.C 5mm / Audio 647-UKL1J100KED 63v
C-37 10uF / Audio 25V E.C 5mm / Audio 647-UKL1J100KED 63v
Some important speaker selector switch cleaning


F2617 Mic Amp Circuit Board
Electrolytic Caps
C-03 2.2uF / Audio 50V E.C 8mm 505-MKS2-2.2/63/10A
C-04 2.2uF / Audio 50V E.C 8mm 505-MKS2-2.2/63/10A
C-06 47uF 6.3V E.C 4mm 647-UPW1V4R7MDD 35v
C-07 1uF / Audio 50V E.C 4.5mm 505-MKS21.0/63/5
C-09 220uF 50V E.C 5mm 647-UPW1J221MPD 63v
C-10 4.7uF 25V E.C 7mm 505-MKS2-4.7/50/10
Tantalum Caps
C-01 0.068uF 25V T.C 4mm 505-MKP2-.068/100/5 100v
My thread on the Dolby board if anyone is interested: https://audiokarma.org/forums/index.php?threads/9090db-dolby-board-help.917332/
It sounds amazing. Has that beautiful strong bass that separates Sansui from the rest.
BOM:
505-MKP2-.068/100/5 | 1
505-MKP2C024701C00JS | 2
505-MKS20.47/63/5 | 3
505-MKS21.0/63/5 | 20
505-MKS2-2.2/63/10A | 13
505-MKS23.3/63/5 | 4
505-MKS2-4.7/50/10 | 2
512-1N5252B | 10
512-KSA1220AYS | 5
512-KSC2690AYS | 5
647-UEP1E470MED | 1
647-UEP2A4R7MED | 3
647-UKL1E101KPDANA | 1
647-UKL1E470KEDANA | 2
647-UKL1J100KED | 30
647-UPW1E101MED1TD | 5
647-UPW1E471MPD6 | 4
647-UPW1H100MDD1TA | 2
647-UPW1H221MPD | 2
647-UPW1J101MPD6 | 3
647-UPW1J221MPD | 3
647-UPW1J471MHD | 2
647-UPW1V221MPD6 | 4
647-UPW1V471MPD | 2
647-UPW1V4R7MDD | 3
647-UPW2A100MED1TA | 1
647-UPW2A101MHD | 2
647-UPW2A102MHD | 1
647-UPW2A221MHD | 2
647-UPW2A330MPD6TD | 1
647-UPW2A331MHD | 2
647-UPW2A471MHD | 1
652-3296P-1-502LF | 2
652-3386H-1-101LF | 2
660-MF1/2DCT52R10R0F | 2
660-MF1/2DCT52R1500F | 4
660-MF1/2DCT52R1800F | 3
660-MF1/2DCT52R3921F | 2
660-MF1/2DCT52R4R75F | 11
667-ECQ-E1475KFA | 3
71-RN60D18R0F | 2
MOSX1/2CT52R1R0J | 3
MOSX1/2CT52R4R7J | 2
MY3-02-DC24 | 1

F2655 Dolby NR Circuit Board (sucks)
* note probably can use for the 10uf 16v instead of low leakage UKL
Electrolytic Caps
C-605 100uF 6.3V E.C 4mm 647-UPW1E101MED1TD 25v
C-09 10uF 16V E.C 5mm 647-UKL1J100KED 63v
C-10 10uF 16V E.C 5mm 647-UKL1J100KED 63v
C-11 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-12 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-13 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-14 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-15 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-16 10uF 16V E.C 7mm 647-UKL1J100KED 63v
C-19 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-20 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-21 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-22 10uF 16V E.C 3mm 647-UKL1J100KED 63v
C-29 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-30 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-35 10uF 16V E.C 647-UKL1J100KED 63v
C-38 10uF 16V E.C 4mm 647-UKL1J100KED 63v
C-606 100uF 16V E.C 5mm 647-UPW1E101MED1TD 25v
C-01 47uF 16V E.C 3mm / 6mm 647-UPW1V4R7MDD 35v
C-02 47uF 16V E.C 3mm / 6mm 647-UPW1V4R7MDD 35v
C-41 1uF / Audio 50V E.C 2.5mm / 5mm 505-MKS21.0/63/5 63v
C-42 1uF / Audio 50V E.C 2.5mm / 5mm 505-MKS21.0/63/5 63v
C-608 1uF / Audio 50V E.C 2.5mm / 4mm 505-MKS21.0/63/5 63v
C-36 10uF / Audio 25V E.C 5mm / Audio 647-UKL1J100KED 63v
C-37 10uF / Audio 25V E.C 5mm / Audio 647-UKL1J100KED 63v
Some important speaker selector switch cleaning


F2617 Mic Amp Circuit Board
Electrolytic Caps
C-03 2.2uF / Audio 50V E.C 8mm 505-MKS2-2.2/63/10A
C-04 2.2uF / Audio 50V E.C 8mm 505-MKS2-2.2/63/10A
C-06 47uF 6.3V E.C 4mm 647-UPW1V4R7MDD 35v
C-07 1uF / Audio 50V E.C 4.5mm 505-MKS21.0/63/5
C-09 220uF 50V E.C 5mm 647-UPW1J221MPD 63v
C-10 4.7uF 25V E.C 7mm 505-MKS2-4.7/50/10
Tantalum Caps
C-01 0.068uF 25V T.C 4mm 505-MKP2-.068/100/5 100v
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