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Pioneer SX-434 Cap List/Map?

Rob_Feature

Rob_Feature

Rob Feature
Hey y'all, I have an SX-434 that has heavy distortion on the left channel. Sounds like it's time for a recap, yes? (caps look original, I think).

Does anyone have a list of caps that should be replaced and, possibly even, a cap map? It usually takes me more time to figure out what to order and where they go than to actually put them in :)

Any headstart would be appreciated. Thank you!
 
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Maybe this was a weird request...I come from working on arcade stuff where you can buy full cap kits (which include cap maps) for different models of monitors, arcade pcbs, etc.

Is that not really done for receivers? Seems like something that would be common since people are always recapping these older pioneers.
 
all what you need to know is in the "audiokarma data base" it has a complete list as well as recommended transistor replacements which should be available from mouser. if i was more computer savvy id be able to provide you link. but you should be familiar with it anyway , besides,they might list a service manual you can down load for free.
 
thats how i do it and have it book marked. there are some threads about repairing the 434. i find using the search on this forum a bit frustrating so i just google it say for example, pioneer sx434 popping, and look for audiokarma . i did thats how i know they are there and even read some. i hope this helps
 
I have a soft spot for these. They sound good and respond well to attention. Here is the last one I did.

Tuner
AWE037 C17 100uf 16V CEA 647-UPW1H101MPD 100uF 50v
AWE037 C20 4.7uf 25V CEA
AWE037 C22 .47uf 50V CEA
AWE037 C23 10uf 16V CEA
AWE037 C25 1uf 50V CEA
AWE037 C31 10uf 16V CEA
AWE037 C33 10uf 16V CEA
AWE037 C40 4.7uf 25V CEA
AWE037 C41 47uf 6V CEA
AWE037 C44 10uf 16V CEA
AWE037 C48 .1uf 25V CSSA
AWE037 C49 220uf 16V CEA 647-UPW1E221MPD 220uF 25v
AWE037 C52 1uF 25v CEA
AWE037 C53 .47uf 50V CEA

AF Amp
AWK-034 C1 1uF 25v CSSA 647-UKL1H010KDDANA 1uF 50v
AWK-034 C2 1uF 25v CSSA 647-UKL1H010KDDANA 1uF 50v
AWK-034 C11 3.3uF 25v CEANL 647-UKL1H3R3KDDANA 3.3uF 50v
AWK-034 C12 3.3uF 25v CEANL 647-UKL1H3R3KDDANA 3.3uF 50v
AWK-034 C17 1uF 25v CSSA 647-UKL1H010KDDANA 1uF 50v
AWK-034 C18 1uF 25v CSSA 647-UKL1H010KDDANA 1uF 50v
AWK-034 C23 .33uF 25v CSSA 667-ECQ-V1H334JL .33uF 50v
AWK-034 C24 .33uF 25v CSSA 667-ECQ-V1H334JL .33uF 50v
AWK-034 C35 .47uF 25v CSSA 667-ECQ-E1474KF .47uF 100v
AWK-034 C36 .47uF 25v CSSA 667-ECQ-E1474KF .47uF 100v
AWK-034 C37 .47uF 25v CSSA 667-ECQ-E1474KF .47uF 100v
AWK-034 C38 .47uF 25v CSSA 667-ECQ-E1474KF .47uF 100v
AWK-034 C41 220uF 6.8v CEA 647-UPW1E221MPD 220uF 25v
AWK-034 C42 220uF 6.8v CEA 647-UPW1E221MPD 220uF 25v
AWK-034 C43 47uF 25v CEA 647-UPW1V470MED1TD 47uF 35v
AWK-034 C44 47uF 25v CEA 647-UPW1V470MED1TD 47uF 35v
AWK-034 C51 220uF 25v CEA 647-UPW1E221MPD 220uF 25v
AWK-034 C52 220uF 25v CEA 647-UPW1E221MPD 220uF 25v
AWK-034 C55 47uF 16v CEA 647-UPW1V470MED1TD 47uF 35v
AWK-034 C56 330uF 25v CEA 647-UPW1E331MPD6 330uF 25v
AWK-034 C57 220uF 25v CEA 647-UPW1E221MPD 220uF 25v
AWK-034 C58 330uF 25v CEA 647-UPW1E331MPD6 330uF 25v

AWK-034 R83 .5 2W CA0002R5000KE14
AWK-034 R84 .5 2W CA0002R5000KE14
AWK-034 R85 .5 2W CA0002R5000KE14
AWK-034 R86 .5 2W CA0002R5000KE14

AWK-034 Q10 2SA725 KSA992FBU
AWK-034 Q11 2SA725 KSA992FBU
AWK-034 Q12 2SA725 KSA992FBU
AWK-034 Q13 2SA725 KSA992FBU
AWK-034 Q18 2SA720R KSA1013YBU
AWK-034 Q19 3SA720R KSA1013YBU
AWK-034 Q20 2SD313D KSC2073TU
AWK-034 Q21 2SD313D KSC2073TU
AWK-034 Q22 2SB507D KSA940
AWK-034 Q23 2SB507D KSA940

Power Supply
AWR-062 C7 330uF 50v CEA 647-UHE1H331MPD 330uF 50v
AWR-062 C8 100uF 50v CEA 647-UPW1H101MPD 100uF 50v
AWR-062 C9 100uF 25v CEA 647-UPW1V101MPD 100uF 35v
AWR-062 C10 100uF 35v CEA 647-UPW1H101MPD 100uF 50v
AWR-062 C11 100uF 16v CEA 647-UPW1V101MPD 100uF 35v
AWR-062 C12 220uF 16v CEA 647-UPW1E221MPD 220uF 25v

AWR-062 Q1 1SC1384R KSC2690AYS
AWR-062 Q2 2SC945R KSC945CGTA
AWR-062 Q3 2SD313D KSC2073TU

AWR-062 D1 S1B01-02 UF4004
AWR-062 D2 S1B01-02 UF4004
AWR-062 D3 S1B01-02 UF4004
AWR-062 D4 S1B01-02 UF4004
AWR-062 D5 S1B01-02 UF4004
AWR-062 D6 WZ-140 1N5244B

AWR-062 standoff
CBLS37-C

Main Caps
3300uF 25v 647-UPW1E332MHD6 3300uF 25v (667-EEU-FC1E332S 3300uF 25)
3300uF 25v 647-UPW1E332MHD6 3300uF 25v (667-EEU-FC1E332S 3300uF 25)
 
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