Pioneer sx-737 recap

Shutterdial

New Member
IM Getting ready to do a complete recap on a playing 737. Would you guys recommend changing the transisters and if so which ones, or should i just leave them alone?
 
Aw send him to a fairly new rebuild listing with the Transistors listed on the BOM. My list is over 5 years old.

In order of IMPORTANCE on the 10 MOST Wanted and REVILED Transistors made list
2sc1451
2sc458
2sa725
2sa726
2sc1312
2sc1313
2sc1384
2sd313 (power supply only)

Here's Mark The FIXER's EDITED Post from March 2018 where he added the changed RELAY # to the post. Apparently everything else is KOSHER! Follow it to the letter and that 737 will be reliable for another 30 years. Your Grandkids will be playing it and you can tell THEM to repair it.
(now complete)

AWX071 c5 220 6 647-UPW1E221MPD

AWR057,8 PWR supply
AWR057,8 c7 1000 50 ceb 647-UPW1H102MHD
AWR057,8 c8 330 50 cea 647-upw1h331mpd
AWR057,8 c9 330 50 cea 647-upw1h331mpd
AWR057,8 c10 330 50 cea 647-upw1h331mpd
AWR057,8 c11 220 16 cea 647-UPW1V221MPD
AWR057,8 c12 220 50 cea 647-upw1h221mpd
AWR057,8 c13 100 50 cea 647-UPW1H101MPD
AWR057,8 c16 220 16 cea 647-UPW1V221MPD
AWR057,8 c17 22 25 cea 647-UPW1h220mdd
AWR057,8 c18 100 16 cea 647-UPW1E101MED
AWR057,8 c19 100 35 cea 647-UPW1H101MPD
AWR057,8 q1 2sd313 512-KSC2073TU
AWR057,8 q2 2sc945 512-KSC2383YTA
AWR057,8 q3 2sd313 512-KSC2073TU
AWR057,8 q4 2sc945 512-KSC2383YTA
AWR057,8 d1 sr3am-4 512-1N5404
AWR057,8 d2 sr3am-4 512-1N5404
AWR057,8 d2 sr3am-4 512-1N5404
AWR057,8 d4 sr3am-4 512-1N5404
AWR057,8 d5 1s1886 512-1n4004
AWR057,8 d6 1s1886 512-1n4004
AWR057,8 d7 1s1886 512-1n4004
AWR057,8 d8 wz-130 512-1N5243B
AWR057,8 d9 wz-140 512-1N5244B



AWM025 PROT
AWM025 c1 0.22 10 cssa 598-DSF050J224
AWM025 c2 0.22 10 cssa 598-DSF050J224
AWM025 c3 330 6 cea 647-upw1c331mpd
AWM025 c4 330 6 cea 647-upw1c331mpd
AWM025 c5 4.7 25 cea 647-UPW1H4R7MDD
AWM025 c6 100 16 cea 647-UPW1E101MED
AWM025 q1 2sc869 512-KSC1845FTA
AWM025 q2 2sc869 512-KSC1845FTA
AWM025 q3 2sc945 only if bad 512-KSC1845FTA
AWM025 q4 2sc945 only if bad 512-KSC1845FTA
AWM025 q5 2sa733 only if bad 512-KSA992FBU
AWM025 q6 2sc945 512-KSC2383YTA
AWM025 q7 2sc1384 512-KSC2690AYS
chassis prot relay 653-LY2F-DC24



AWH033 pwr amp
AWH033 c1 0.33 25 cssa 598-DSF050J334
AWH033 c2 0.33 25 cssa 598-DSF050J334
AWH033 c7 220 6 cea 647-UPW1E221MPD
AWH033 c8 220 6 cea 647-UPW1E221MPD
AWH033 c9 47 35 cea 647-UPW1H470MED
AWH033 c10 47 35 cea 647-UPW1H470MED
AWH033 c19 22 10 cea 647-UPW1a220mdd
AWH033 c20 22 10 cea 647-UPW1a220mdd
AWH033 vr1 100 652-3386F-1-101LF
AWH033 vr2 100 652-3386F-1-101LF
AWH033 vr3 10k 652-3296Y-1-103LF
AWH033 vr4 10k 652-3296Y-1-103LF
AWH033 q1 2sa726 512-KSA992FBU
AWH033 q2 2sa726 512-KSA992FBU
AWH033 q3 2sa726 512-KSA992FBU
AWH033 q4 2sa726 512-KSA992FBU
AWH033 q5 2sc1451 512-KSC3503DSTU
AWH033 q6 2sc1451 512-KSC3503DSTU
AWH033 q7 2sd357 512-KSC2690AYS
AWH033 q8 2sc357 512-KSC2690AYS
AWH033 q9 2sb527 512-KSA1220AYS
AWH033 q10 2sb527 512-KSA1220AYS
AWH033 q11 2sd370 863-MJ21194G
AWH033 q12 2sd370 863-MJ21194G
AWH033 q13 2sb530 863-MJ21193G
AWH033 q14 2sb530 863-MJ21193G

AWG030 CTL AMP
AWG030 c1 1 25 csza 647-UKL1H010KDDANA
AWG030 c2 1 25 csza 647-UKL1H010KDDANA
AWG030 c5 100 16 cea 647-UPW1E101MED
AWG030 c6 100 16 cea 647-UPW1E101MED
AWG030 c9 4.7 25 ceanl 647-UKL1H4R7KDDANA
AWG030 c10 4.7 25 ceanl 647-UKL1H4R7KDDANA
AWG030 c17 4.7 25 ceanl 647-UKL1H4R7KDDANA
AWG030 c18 4.7 25 ceanl 647-UKL1H4R7KDDANA
AWG030 c19 4.7 25 ceanl 647-UKL1H4R7KDDANA
AWG030 c20 4.7 25 ceanl 647-UKL1H4R7KDDANA
AWG030 c21 47 10 cea 647-UPW1H470MED
AWG030 c22 47 10 cea 647-UPW1H470MED
AWG030 c23 2.2 25 cssa 647-UKL1H2R2MDDANA
AWG030 c24 2.2 25 cssa 647-UKL1H2R2MDDANA
AWG030 c29 100 35 cea 647-UPW1H101MPD
AWG030 q1 2sa726 512-KSA992FBU
AWG030 q2 2sa726 512-KSA992FBU
AWG030 q3 2sc1312 512-KSC1845FTA
AWG030 q4 2sc1312 512-KSC1845FTA
AWG030 q5 2sc1312 512-KSC1845FTA
AWG030 q6 2sc1312 512-KSC1845FTA



AWM066 MIC
AWM066 c2 220 35 cea 647-UPW1V221MPD
AWM066 c3 0.47 16 cssa 598-DSF050J474
AWM066 c6 220 6 cea 647-UPW1E221MPD
AWM066 c7 0.47 50 ceanl 598-DSF050J474
AWM066 q1 2sc1344 512-KSC1845FTA
AWM066 q2 2sc1344 512-KSC1845FTA

AWF011 PHONO
AWF011 c1 1 25 cssa 647-UKL1H010MDDANA
AWF011 c2 1 25 cssa 647-UKL1H010MDDANA
AWF011 c7 330 6 cea 647-upw1c331mpd
AWF011 c8 330 6 cea 647-upw1c331mpd
AWF011 c11 3.3 25 ceanl 647-UKL1H3R3MDDANA
AWF011 c12 3.3 25 ceanl 647-UKL1H3R3MDDANA
AWF011 c17 100 25 cea 647-UPW1H101MPD
AWF011 c18 220 16 cea 647-UPW1V221MPD
AWF011 Q1 2sa725 512-KSA992FBU
AWF011 Q2 2sa725 512-KSA992FBU
AWF011 Q3 2sc1313 512-KSC1845FTA
AWF011 Q4 2sc1313 512-KSC1845FTA
AWF011 Q5 2sc1313 512-KSC1845FTA
AWF011 Q6 2sc1313 512-KSC1845FTA


AWE043 TUNER
AWE043 c25 4.7 25 cea 647-UPW1H4R7MDD
AWE043 c27 10 16 cea 647-UPW1H100MDD
AWE043 c28 0.47 50 cea 598-DSF050J474
AWE043 c33 1 50 cea 647-UPW1H010MDD
AWE043 c38 0.33 10 cssa 598-DSF050J334
AWE043 c39 1 10 cssa 647-UPW1H010MDD
AWE043 c40 0.47 10 cssa 598-DSF050J474
AWE043 c49 0.47 50 cea 598-DSF050J474
AWE043 c50 0.47 50 cea 598-DSF050J474
AWE043 c58 4.7 25 cea 647-UPW1H4R7MDD
AWE043 c59 47 6 cea 647-UPW1H470MED
AWE043 c64 10 16 cea 647-UPW1H100MDD
AWE043 c66 0.1 25 cssa 598-DSF050J
AWE043 c67 220 16 cea 647-UPW1E221MPD
AWE043 c68 100 16 cea 647-UPW1E101MED
AWE043 q8 2sa725 512-KSA992FBU
AWE043 q9 2sa725 512-KSA992FBU

mouser parts list importer text block:

647-UPW1E221MPD


647-UPW1H102MHD
647-upw1h331mpd
647-upw1h331mpd
647-upw1h331mpd
647-UPW1V221MPD
647-upw1h221mpd
647-UPW1H101MPD
647-UPW1V221MPD
647-UPW1h220mdd
647-UPW1E101MED
647-UPW1H101MPD
512-KSC2073TU
512-KSC2383YTA
512-KSC2073TU
512-KSC2383YTA
512-1N5404
512-1N5404
512-1N5404
512-1N5404
512-1n4004
512-1n4004
512-1n4004
512-1N5243B
512-1N5244B




598-DSF050J224
598-DSF050J224
647-upw1c331mpd
647-upw1c331mpd
647-UPW1H4R7MDD
647-UPW1E101MED
512-KSC1845FTA
512-KSC1845FTA
512-KSC1845FTA
512-KSC1845FTA
512-KSA992FBU
512-KSC2383YTA
512-KSC2690AYS
653-LY2F-DC24




598-DSF050J334
598-DSF050J334
647-UPW1E221MPD
647-UPW1E221MPD
647-UPW1H470MED
647-UPW1H470MED
647-UPW1a220mdd
647-UPW1a220mdd
652-3386F-1-101LF
652-3386F-1-101LF
652-3296Y-1-103LF
652-3296Y-1-103LF
512-KSA992FBU
512-KSA992FBU
512-KSA992FBU
512-KSA992FBU
512-KSC3503DSTU
512-KSC3503DSTU
512-KSC2690AYS
512-KSC2690AYS
512-KSA1220AYS
512-KSA1220AYS
863-MJ21194G
863-MJ21194G
863-MJ21193G
863-MJ21193G


647-UKL1H010KDDANA
647-UKL1H010KDDANA
647-UPW1E101MED
647-UPW1E101MED
647-UKL1H4R7KDDANA
647-UKL1H4R7KDDANA
647-UKL1H4R7KDDANA
647-UKL1H4R7KDDANA
647-UKL1H4R7KDDANA
647-UKL1H4R7KDDANA
647-UPW1H470MED
647-UPW1H470MED
647-UKL1H2R2MDDANA
647-UKL1H2R2MDDANA
647-UPW1H101MPD
512-KSA992FBU
512-KSA992FBU
512-KSC1845FTA
512-KSC1845FTA
512-KSC1845FTA
512-KSC1845FTA




647-UPW1V221MPD
598-DSF050J474
647-UPW1E221MPD
598-DSF050J474
512-KSC1845FTA
512-KSC1845FTA


647-UKL1H010MDDANA
647-UKL1H010MDDANA
647-upw1c331mpd
647-upw1c331mpd
647-UKL1H3R3MDDANA
647-UKL1H3R3MDDANA
647-UPW1H101MPD
647-UPW1V221MPD
512-KSA992FBU
512-KSA992FBU
512-KSC1845FTA
512-KSC1845FTA
512-KSC1845FTA
512-KSC1845FTA



647-UPW1H4R7MDD
647-UPW1H100MDD
598-DSF050J474
647-UPW1H010MDD
598-DSF050J334
647-UPW1H010MDD
598-DSF050J474
598-DSF050J474
598-DSF050J474
647-UPW1H4R7MDD
647-UPW1H470MED
647-UPW1H100MDD
598-DSF050J
647-UPW1E221MPD
647-UPW1E101MED
512-KSA992FBU
512-KSA992FBU

EDIT 1/2/2015 CHANGED trimpots to types 3386F and 3296Y

edit 2/7/18 changed ly 4f to ly2f, because the ly 4f has been redesigned substantially larger

Last edited: Feb 8, 2018
desismileys_6425.gif

Nothing is ever completely fool proof, because fools are so ingenious.
markthefixer, Jan 15, 2013 Report
#5 Like + Quote Reply
 
I am also working on a 737 and decided to start by replacing transistors that are known to fail. Based on some other threads, I will be doing this:

replacing 2sa725 and 2sa726 transistors with KSA992FBU
replacing 2sc1451 transistors with KSC3503DSTU
replacing 2sc1312 transistors with KSC1845

I read that these transistors should be replaced throughout the unit. But then I read that it's a bad idea to replace any transistors on the tuner board, because then an alignment will need to be performed. Is this true? Also, is it a good idea to start with these transistors as a first step, or is there something else I should be doing, too?
 
I am also working on a 737 and decided to start by replacing transistors that are known to fail. Based on some other threads, I will be doing this:

replacing 2sa725 and 2sa726 transistors with KSA992FBU
replacing 2sc1451 transistors with KSC3503DSTU
replacing 2sc1312 transistors with KSC1845

I read that these transistors should be replaced throughout the unit. But then I read that it's a bad idea to replace any transistors on the tuner board, because then an alignment will need to be performed. Is this true? Also, is it a good idea to start with these transistors as a first step, or is there something else I should be doing, too?
Yes, don't replace those, it's true. If you're doing the transistors, you might as well do the caps, the trimmers.....
It's sort of a rabbit hole. Plenty of 737 threads around here on AK, use Google and read up.
 
Can anyone tell me what are the best capacitors to replace the filter capacitors for my Pioneer SX-737?

The original ones are 6800uf 50v. I saw some on the mouser, but I was not sure which ones would be best to get. Any help would be greatly appreciated.!
 

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Can anyone tell me what are the best capacitors to replace the filter capacitors for my Pioneer SX-737?

The original ones are 6800uf 50v. I saw some on the mouser, but I was not sure which ones would be best to get. Any help would be greatly appreciated.!
andr
See my post in your caps thread.
 
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