SA-9100 the right service manual?

vman96

Member
I have several service manuals including one from hifiengine site, but all of them are slightly different.
In particular equalizer board AWF-007. My unit has the board with four pins on each end, two 2.2uf-25v electrolytic caps (instead of one in the schematic), and 22uf-25v ( 22uf-6v in the schematic), and they all are in different locations.
Does someone have the correct service manual, or at list the corresponding schematic for AWF-007?

I really appreciate your help!
 
What are the #'s after AWF-007-(?) You may have a revised board that PIONEER didn't integrate into the manual. All the manuals I see have the awf-007-0 board listed.
 
Actually one side has four pins the other has five. Sorry for misleading.

The manuals I have is for the board with - 3 pins on one end.

Besides that, there are some other differences in components value and their position in the circuits.
 
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Awf-007

This will help to clarify the difference:

I need schematic for board -B which is on the right
 

Attachments

  • AWF-007-0.JPG
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  • AWF-007-B.JPG
    AWF-007-B.JPG
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Unless someone here has an obscure Service Bulletin / UPDATE SHEET for the 9100, I can't find anything for a "B" board.

Pioneer DID undocumented line changes on caps, resistors, transistors, etc. like everyone else. I've seen updated boards but they usually follow the original with updated parts. This may be one that got thru without documentation.

What is the problem with it? If it's a matter of a recap, copy the value/voltages off the caps and go with same value, but up the voltage on most of the very low voltage to 16 to 25v. Same thing with the Tantalum (C9) but use an Electrolytic instead. Those SKY BLUE SANYO's are troublemakers. Definately get rid of them. Replace them with Stacked Film Panasonic ECQ's. The transistors are probably the same as the -0 board. The only trouble maker is the 2sa726. replace with a KSA992.
 
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Thank you for your help Larry! Yes, that's exactly what I am doing - a recap.

I'm moving in a very slow pace, one board at the time, allowing caps to form for a couple of weeks, trying to preserve that ideal tube-like sound which is pleasant to my ear.
I've used Nichicons PW, PM for powers supply board; audio path gets Elna Cilmic combine with a few Nichicons FG. FGs sound very clean and neutral and in certain positions give a better sharpness and definition to high and mid frequencies.

After recap of the amplifier control board - 018, I sought I had reached the pinnacle of sound. It was most pleasant and desirable sound you can dream of. The transparency, rich balanced frequencies, each instrument was there, present and defined. 3D is not the word….

I'd enjoyed the music for a month, refusing to continue the recap on other boards. I knew I'd lose that sweetness and won't be able to get it back. But knowing that most caps on 007 boards are leaking and it just a matter of time before something seriously gets damaged, I was forced to move on.

At first I've used Cilmics in all positions on AWF-007 for the exception of C7 – 3.3uf 50v, which was substituted with Nichicon FG. I believe Elna don't make this value in Cilmic series.

It didn't sound good, the high end was rolled off and distorted, mid frequencies were way behind, but the bottom end was rich and smooth.

Then I've replaced Cilmic C1 – 2.2uf 50v with Nichicon FG of the same value and voltage. That brought life and transparency to the high end, but slightly on a bright side; mids also came forward a bit.

I've been listening to the amp for at list 15 hours and it got better at this point, and it will get better with time. I still like to reduce the brightness of the high end and get tighter and more defined mids. It's kind of hard to experiment with those boards; the space is very limited there. I hoped the schematic would give me a better idea of the circuit.
 
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I stick with UPW's and UHE's for POWER SUPPLIES, and UKL's for everything else, unless it's 2.2uf and under. Then those spots get a stacked film (pannie ECQ's....shortly to become obsolete gotta get a bunch in various sizes). My hearing isn't that good and I can't tell one cap from another, so I go with decent reliable caps. Cost is a big plus too. Tube gear is same way. I'll mix the films up between CD, DME's, DMT's, Illinois 150's, and K40 K42, K73 Russkie caps. But the lytics are Nichicons. Sound ok to me and I'm the only one who listens to them in the house (just me and the wife....Oh yeah the dog, but she doesn't like music...Howls at the radio.)
 
Those tantalum caps on 007 appears to be 10uf 20v, if I interpreted correctly. Identical pair of those are on 018 board.
 
C17 & C18 on the AWG-018 board are 10uf/25v Tantalums. 10uf 35V electrolytics are fine.

Something that will help you with Identification of the types of caps used by pioneer. In the Sticky's at the top of the forum page is a thread about the PIONEER Tuning FORK Bulletins. They came out shortly after the SA9100 (a year or two) but they will help with parts, how to's, etc. Volume two has a whole section on Caps, their types and how to id them on pioneers (also helpful on other brands) and how pioneer listed them by type. I'd download the whole series.
 
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That extra pin perplexes me, BUT it has to be remembered that the equalizer board (one PER CHANNEL in the unit) has it's FEEDBACK switched for different equalization curves, and as such, another curve could be added for some reason. Since the feedback is SWITCHED, dirty switch contacts can be affecting the gain and the equalization "curve".

This also means that C10 can affect the response. Try bypassing that with a stacked film cap, just in case...

Not only clean the switch contacts involved, but ohm them out afterwards to be sure that the cleaning WAS accomplished.

And the LAST time someone noted frequency response variations, their "last resort" of DOING the "usual" recommended transistor replacements cured it.

I see no mention of transistors in this thread. Try a new set of ksa992's and ksc1845's for effect.

And the input caps are best served by using stacked film caps paired to reach the capacitance, if they can be shoehorned in.
 
Hello Mark,
It is nice to hear from you once again, and thank you for your recommendations!

Just before I read your post I spend some time with my amp, studding schematic, etc.
And Yes, I've resolve the sound issue to my satisfaction, in a way which kind of surprised me:

When choosing caps, I always try to go next step up in voltage if possible. In this situation I have:

C1 2.2uf-50v x2 (double increase)
C4 47uf-35v (next up)
C7 3.3uf-50v (stock)
C9 22uf-50v (doable increase)
C10 470uf-6v (stock)

Apparently C9 was causing the frequency imbalance, it didn't like to be doubled :)

I replaced it with 22uf-35v, and it took care the problem:

Mid frequencies tighten up and shifted forward;
High frequencies became transparent and clean;
Never had any issues with bass and extension.

At this point unit sound perfect to my ear, almost :))

Strange, one small voltage value decrease played such a big role in the circuitry, unless former caps were defective; both boards.... I doubt it. I believe C9 is in the output path of 007, according to my wrong schematic.

Actually I do have a pair of KSA-992s on hand and was about to replace them, but didn't know about KSC1845.
 
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The amp sounds good so far, I'll listen for a while, let those caps to settle down.

Well, lets see... I still have three more boards to go; protection, filter and power amp. The rest are all done.

The protection board - 025 will be the next challenge :). What is the part number of the diode, which goes in between terminal 8 and 9, I believe?
 
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Duke is correct. Pins 9 & 10. The banded end to pin 10. Also the 1s2473 (D8) just off pin 12, gets changed to a 1n4004.
 
That's the one I was looking for, thank you!

Is D8 gets changed as a preventive maintenance, or is it necessary for the installation of the new flyback diode?
 
Following this thread as I've just picked up a SA-9100 and she'll need some lovin' when I can get a list together. :)
 
Following this thread as I've just picked up a SA-9100 and she'll need some lovin' when I can get a list together. :)

If you want the most updated and proven parts list by using Nichicon caps exclusively, here it is:

EQUALIZER AMP ASSY x2
AWF-007-0 C1 2.2 25 Electrolytic CSSA 2R2M 25 647-UKL1H2R2MDDANA 2.2
AWF-007-0 C4 47 25 Electrolytic CEA 470P 25 647-UPW1E470MDD 47
AWF-007-0 C7 3.3 50 Electrolytic CEA 3R3P 50 647-UPW1H3R3MDD 3.3
AWF-007-0 C9 22 6 Electrolytic CSSA 220M 6 647-UKL1H220MEDANA 22
AWF-007-0 C10 470 6 Electrolytic CEA 471P 6 647-UPW1E471MPD 470
AWF-007-0 Q1 2SA774 512 KSA992FBU
AWF-007-0 Q2 2SA774 512 KSA992FBU
AWF-007-0 Q3 2SC1313 512 KSC1845FTA
AWF-007-0 Q4 2SC1313 512 KSC1845FTA
AWF-007-0 Q5 2SA726 512 KSA992FBU



CONTROL AMP ASSY
AWG-018-A C1 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWG-018-A C2 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWG-018-A C7 47 16 Electrolytic CEA 470P 16 647-UPW1V470MED1TD 47
AWG-018-A C8 47 16 Electrolytic CEA 470P 16 647-UPW1V470MED1TD 47
AWG-018-A C9 3.3 25 Electrolytic CSSA 3R3M 25 647-UKL1H3R3KDDANA 3.3
AWG-018-A C10 3.3 25 Electrolytic CSSA 3R3M 25 647-UKL1H3R3KDDANA 3.3
AWG-018-A C11 47 16 Electrolytic CEA 470P 16 647-UPW1V470MED1TD 47
AWG-018-A C12 47 16 Electrolytic CEA 470P 16 647-UPW1V470MED1TD 47
AWG-018-A C13 4.7 25 Electrolytic CEA 4R7P 25 647-UPW1H4R7MDD 4.7
AWG-018-A C14 4.7 25 Electrolytic CEA 4R7P 25 647-UPW1H4R7MDD 4.7
AWG-018-A C17 10 25 Electrolytic CSZA 100M 25 647-UKL1H100KDDANA 10
AWG-018-A C18 10 25 Electrolytic CSZA 100M 25 647-UKL1H100KDDANA 10
AWG-018-A C21 100 16 Electrolytic CEA 101P 16 647-UPW1H101MPD 100
AWG-018-A C22 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWG-018-A C23 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWG-018-A C24 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWG-018-A C25 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWG-018-A C26 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWG-018-A Q1 2SA774 512 KSA992FBU
AWG-018-A Q2 2SA774 512 KSA992FBU
AWG-018-A Q3 2SA774 512 KSA992FBU
AWG-018-A Q4 2SA774 512 KSA992FBU
AWG-018-A Q5 2SC1312 512 KSC1845FTA
AWG-018-A Q6 2SC1312 512 KSC1845FTA
AWG-018-A Q7 2SC1312 512 KSC1845FTA
AWG-018-A Q8 2SC1312 512 KSC1845FTA
AWG-018-A Q9 2SC1478 512 KSC1845FTA
AWG-018-A Q10 2SC1478 512 KSC1845FTA

FILTER AMP ASSY
AWK-021-0 C1 4.7 10 Electrolytic CSSA 4R7X 10 647-UKL1H4R7KDDANA 4.7
AWK-021-0 C2 4.7 10 Electrolytic CSSA 4R7X 10 647-UKL1H4R7KDDANA 4.7
AWK-021-0 C5 47 10 Electrolytic CEA 470P 10 647-UPW1E470MDD 47
AWK-021-0 C6 47 10 Electrolytic CEA 470P 10 647-UPW1E470MDD 47
AWK-021-0 C7 4.7 10 Electrolytic CSSA 4R7X 10 647-UKL1H4R7KDDANA 4.7
AWK-021-0 C8 4.7 10 Electrolytic CSSA 4R7X 10 647-UKL1H4R7KDDANA 4.7
AWK-021-0 C11 22 10 Electrolytic CEA 220P 10 647-UPW1C220MDD 22
AWK-021-0 C12 22 10 Electrolytic CEA 220P 10 647-UPW1C220MDD 22
AWK-021-0 Q1` 2SC1345 512 KSC1845FTA
AWK-021-0 Q2 2SC1345 512 KSC1845FTA
AWK-021-0 Q3 2SC1345 512 KSC1845FTA
AWK-021-0 Q4 2SC1345 512 KSC1845FTA


POWER AMP ASSY
AWH-023-B C1 0.22 25 Electrolytic CSSA R22M 25-85C 598-DSF050J224 0.22
AWH-023-B C2 0.47 25 Electrolytic CSSA R47M 25-85C 598-DSF050J474 0.47
AWH-023-B C3 33 16 Electrolytic CEA 330P 16-85C 647-UPW1E330MDD 33
AWH-023-B C6 33 16 Electrolytic CEA 330P 16-85C 647-UPW1E330MDD 33
AWH-023-B C12 470 6 Electrolytic CEA 471P 6-85C 647-UPW1E471MPD 470
AWH-023-B Q1 2SA774 512 KSA992FBU
AWH-023-B Q2 2SA774 512 KSA992FBU
AWH-023-B Q3 2SC869 512-KSC1845FTA
AWH-023-B Q4 2SC869 512-KSC1845FTA
AWH-023-B Q5 2SA628 512 KSA992FBU
AWH-023-B Q6 2SC1451 512-KSC3503DSTU
AWH-023-B Q7 2SC1451 512-KSC3503DSTU
AWH-023-B Q8 2SD358 512-KSC2690AYS
AWH-023-B Q9 2SB528 512-KSA1220AYS
AWH-023-B Q10 2SC1079 863-MJ21194G
AWH-023-B Q11 2SA679 863-MJ21193G
AWH-023-B D1 1S2473 512-1n4148
AWH-023-B D2 1S2473 512-1n4148
AWH-023-B D3 1S2473 512-1n4148
AWH-023-B D4 STV-4A
AWH-023-B D5 1S2473 512-1n4148
AWH-023-B D6 1S2471 512-1n4148
AWH-023-B VR1 330 MT 652-3296P-1-501LF
AWH-023-B VR2 100 ST 652-3386H-1-101LF
AWH-023-B R23 mox 10 1w 660-MO1CT52R100J


PROTECTION CIRCUIT ASSY
AWM-025 C1 0.22 10 cssa - 0.22 50 667-ECQ-V1H224JL3
AWM-025 C2 0.22 10 cssa - 0.22 50 667-ECQ-V1H224JL3
AWM-025-A C3 330 6 Electrolytic CEA 331P 6 647-UPW1A331MPD 330
AWM-025-A C4 330 6 Electrolytic CEA 331P 6 647-UPW1A331MPD 330
AWM-025-A C5 4.7 25 Electrolytic CEA 4R7P 25 647-UPW1H4R7MDD 4.7
AWM-025-A C6 100 16 Electrolytic CEA 101P 16 647-UPW1H101MPD 100
AWM-025-A Q1 2SC857K 512-KSC1845FTA
AWM-025-A Q2 2SC857K 512-KSC1845FTA
AWM-025-A Q3 2SC945 512-KSC1845FTA
AWM-025-A Q4 2SC945 512-KSC1845FTA
AWM-025-A Q5 2SA733 512-KSA992FBU
AWM-025-A Q6 2SC945 512-KSC2383YTA
AWM-025-A Q7 2SC1384 512-KSC2690AYS

POWER SUPPLY CIRCUIT-A ASSY
AWR-031-0 C5 470 63 Electrolytic CEB 471P 63-85C 647-TVX1J471MCD 470
AWR-031-0 C6 470 63 Electrolytic CEB 471P 63-85C 647-TVX1J471MCD 470
AWR-031-0 D1 SR3AM-8
AWR-031-0 D2 SR3AM-8
AWR-031-0 D3 SR3AM-8
AWR-031-0 D4 SR3AM-8
AWR-031-0 D5 SIB01-02 512-1n4004
AWR-031-0 D6 SIB01-02 512-1n4004
AWR-031-0 D7 SIB01-02 512-1n4004
AWR-031-0 D8 SIB01-02 512-1n4004

POWER SUPPLY CIRCUIT-B ASSY
AWR-032-0 C1 100 63 cea 100 63 647-UPW1J101MPD 100
AWR-032-0 C2 100 63 cea 100 63 647-UPW1J101MPD 100
AWR-032-0 C5 10 16 cea 10 50 647-UPM1H100MDD 10
AWR-032-0 C6 10 35 cea 10 50 647-UPM1H100MDD 10
AWR-032-0 C7 10 50 cea 10 50 647-UPM1H100MDD 10
AWR-032-0 C8 10 50 cea 10 50 647-UPM1H100MDD 10
AWR-032-0 C9 10 50 cea 10 50 647-UPM1H100MDD 10
AWR-032-0 C20 10 50 cea 10 50 647-UPM1H100MDD 10
AWR-032-0 C12 47 25 cea 47 25 647-UPW1E470MDD 47
AWR-032-0 C13 47 25 cea 47 25 647-UPW1E470MDD 47
AWR-032-0 C14 33 25 cea 33 25 647-UPW1V330MDD 33
AWR-032-0 C15 33 25 cea 33 25 647-UPW1V330MDD 33
AWR-032-0 C20 10 50 cea 10 50 647-UPM1H100MDD 10

AWR-032-0 q1 2sd313 pwr pass 512-KSC2073TU 512-KSC2073TU
AWR-032-0 q2 2sb507 pwr pass 512-ksa940 512-KSA940TU
AWR-032-0 q3 2sc945 f/b 512-ksc2383YBU 512-ksc2383YTA
AWR-032-0 q4 2sa720 f/b 512-ksa1013YBU 512-ksa1013YBU
AWR-032-0 q5 2sc1318 pass 512-ksc2383YBU 512-ksc2690AYS
AWR-032-0 q6 2sa720 pass 512-ksa1013YBU 512-ksa1220AYS
AWR-032-0 q7 2sc1318 pass 512-ksc2383YBU 512-ksc2690AYS
AWR-032-0 q8 2sa720 pass 512-ksa1013YBU 512-ksa1220AYS

AWR-032-0 d1 wz-130 512-1n5243B 512-1n5243B
AWR-032-0 d2 wz-130 512-1n5243B 512-1n5243B

AWR-032-0 R12 390 1/2w 660-MOS1CT52R391J
AWR-032-0 R13 390 1/2w 660-MOS1CT52R391J



SWITCH B ASSY
AWS-039-0 C1 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWS-039-0 C2 1 25 Electrolytic CSSA 010M 25 647-UKL1H010KDDANA 1
AWS-039-0 C5 10 16 Electrolytic CEA 100P 16 647-UPW1V100MDD 10
AWS-039-0 C6 10 16 Electrolytic CEA 100P 16 647-UPW1V100MDD 10
AWS-039-0 Q1 2SC1313 512-KSC1845FTA
AWS-039-0 Q2 2SC1313 512-KSC1845FTA


SWITCH C ASSY
AWS-040-0 C9 0.47 10 Electrolytic CSSA R47M 10 598-DSF050J474 0.47
AWS-040-0 C10 0.47 10 Electrolytic CSSA R47M 10 598-DSF050J474 0.47
AWS-040-0 C11 0.47 10 Electrolytic CSSA R47M 10 598-DSF050J474 0.47
AWS-040-0 C12 0.47 10 Electrolytic CSSA R47M 10 598-DSF050J474 0.47

Aluminum Electrolytic Capacitors - Screw Terminal 15000uF 50volts
Manufacturer: Vishay / Sprague



I have chosen a different path by using Elna Silmic II and Nichicons FGs. Could be a gamble, you need to be patient!
 
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