SX-9930 (F) Tuner C53 question

Hi,
Yes I am a newbie. First post.
I purchased my new SX-9930(F) in Germany in '74. Still have it.
Learning from the wise wisdom here, I am building a parts list of things to order. But while comparing the original (included) schematic, SX-939 service manual information and the list Mark the Fixer has provided; I find one part on the Tuner board (AWE-041) does not match.

The only CEA 470P 6 in SX-9930

All paperwork I have shows C53 as a 47uf cap.
Here in the form it is listed as 4.7uF.

Would someone educate me on why one would reduce the capacitance of this C53.

I do not have a SM, so I can't help verify what is called out in the manual and written in the schematics. It might be a simple mistake or typo.

CEA 470P 6, I assume is 47uF/6.3V (47 x 10 to the 0 power = 47 * 1) P is the tolerance.

Locate C53 on the tuner board and read off what it actually is.

It could have been transposed with C52 also. C52 is a 4.7uf

I should have thought of that!! :sigh: I verified the installed C53 is a 47uF and C52 is 4.7uF. I would stick with 47uF in C53, but with Markthefixer's list having a different capacitance, I was wondering if I was missing something (like a service bulletin or something.) The list I am referring to is found here: http://www.audiokarma.org/forums/showthread.php?t=494501

That's my thread. As I recall I didn't replace all of the caps. And the tuner board is a GOLD PLATED BITCH to get out enough to work on without de-soldering any pins. But you will have to disconnect the Tuner cord.

Mine is down in the basement under a bunch of stuff. Seems to me that I went with a 47uf here. My general rule of thumb with regard to discrepancies between the manual and the unit...........Go with what's in the unit. Almost none of the manufacturers made updated manuals. The manuals that ARE out there are usually 1st batch production. And then you always have the Generic DISCLAIMER, "we reserve the right to make changes without notice", or words to that effect.

I think MTF will settle out the discrepancy when he see's this. Most likely someone saw 4.7 on the scat, and posted it. And it got copied down the years. Who knows. But it will get figured out and corrected.

Your thread? Nice to meet you.
Will stick with rating of what is installed as you wisely point.
Once I get the caps, I will work on the protection circuit first, it has started to work intermittently and I finally figured out C2 was breaking down.
The fly back diode will be added.

This past spring I finally completed the recap, except for the tuner board.
Sounded great until summer. Suddenly audio would drop in and out, then finally no audio.:thumbsdn:
Using cool spray I figured out the protection circuit Q3 was breaking down.
Time to replace Q3, but I have not found a list with Q3 on it.
It is a 2SC945.

Is there a list of semiconductors to be replaced (with a recap), someone could point me too? I have not found a complete list yet?

It's the same board as in the SX-1010. Quite a few of the boards in the 939 with the exception of the AMP board are the same. Check the board number against that on the 1010. If it's the same use the 1010 list if not one for the 939.

BTW Q3 gets replaced with a KSC1845 IIRC. But double check. These 60 year old brain cells are getting a bit flaky. (Need a recap myself!)

Larry thanks for the suggestion, but I am coming up with conflicting numbers. Sometimes it is the Mouser number and sometimes the part number listed in the thread does not match the manual. I would like to avoid ordering something that would not work in my SX-9930.

Original table deleted. See post #20 for new table.

This is exactly why MARK has been re-iterating to everyone who posts up they want a list. There are too many versions out there that are old, outdated or just plain WRONG. suffix's change on the basic number on the transistors (no big deal for the most part), caps get discontinued and have to be researched, etc.

Find a complete 939 list and post it up in the thread and we can getone of the other good techs or Mark to vet it with the most recent stuff (Mark keeps all this on an excel sheet) and get it back to you. The list that Mark posted in the other thread was caps only. No Transistors. A couple posts down are the ones I replaced on the boards with the board name and the Q #. I've never seen a complete 939 list with all of the transistors that should be replaced etc. But it's not going to be as extensive as your list above.

We DO NOT ADVOCATE replacing every part on the unit, except for cascading failures. Just troublesome and worn out parts. For the most part transistors in these are pretty much bullet proof with a few exceptions. They will be on the vetted list.


1st off. TUNER! DO NOT REPLACE ANY SEMI CONDUCTORS (except 2sa726-2sa725) unless it's not functioning. The 2sa763 is a sub for the 2sa725 and 726. Nothing wrong with it. Just replace the caps listed in the recap list.

STV4H- NO REPLACEMENT FOR IT. It's the Thermal Diode that regulates the bias. It's located IIRC on the main heatsink and connected to the board. Do not bend the leads within 1/2" of the module or you'll be looking at a 50# doorstop. If it breaks, ask MARK THE FIXER to repair it for you. He has developed a jig to repair them.


This is the PROTECTION BOARD LIST for the 939 and 1010. This is all that's needed. You can replace the 2sc945's Q3-4 with KSC1845's.[edit] Q6 gets a 512-KSC2383YTA,. [END EDIT] Leave the others be. They don't need replacing unless blown.


Protection Assembly (AWM-062-0)

AWM-062-0: C1: .22uF 10v CSSA: 598-DSF050J224.22uF 50v
AWM-062-0: C2: .22uF 10v CSSA: 598-DSF050J224 .22uF 50v
AWM-062-0: C3: 330uF 6.3v CEA: 647-UPW1A331MPD 330uF 10v
AWM-062-0: C4: 330uF 6.3v CEA: 647-UPW1A331MPD 330uF 10v
AWM-062-0: C5: 4.7uF 25v CEA: 647-UPW1V4R7MDD 4.7uF 35v
AWM-062-0: C6: 100uF 16v CEA: 647-UPW1E101MED 100uF 25v
Q3,4: 2sc945 : ksc1845fta
Q6:2sc945 : 2sc2383yta
Q7: 2SC1384: 512-KSC2690AYS

Flyback DIODE 512-1n4004

I just vetted these. So this board list is good.

Larry

Most every transistor, diode, zener you have listed is findable thru the search function in the forum.

SOME of the SEMI CONDUCTORS listed are NOT going to be replaced as they have no replacement. The 2SK types and the HA Chips are prime examples.


The manual parts lists (specifically transistors) will sometimes have a primary part and then a sub in parenthesis ( ). In this case the part could be either or. In the case of the 2sa725/726 the usual sub is the 2sa763 which is not a troublemaker and left alone. The 2sa725/726 are strongly recommended for replacement. So you have to look at the manual, and the unit to decipher what part you have/need. You just can't use the manual vs. the replacement list.

Plus there is not a direct 1: 1 correspondence that a simple lookup list a>b would resolve - we have to figure out the original INTENT in the circuit , and where the trade offs were made in parts specification. Otherwise the same damn faults will happen over and over and over....

For example - q6 in the protection circuit discharges a 100uf cap through a 22 ohm resistor. To handle this energy pulse, they specified the 2sc945
BUT I have found that the 2sc945 is MARGINAL in an obscure spec, which shortens it's life and makes it failure prone - and the ONLY way that failure comes to light is when there is a turn-off thump through the speakers, which means that DC voltage and over current WILL NOT trigger the protection.
In simpler terms - NO REAL PROTECTION!!!

Thus I specify the 512-KSC2383YTA, a much larger transistor.


and as a CONTINUING example:

That SAME q6 was originally specified by ME as a 512-KSD1616AGBU transistor - which was not much better than the 2sc945 transistor!!!

So, if the list you found contains ksd1616xxx, ksc945xxx or ksa733xxx transistors, it is in NEED of an UPDATE

That's why I ask that before the trigger is pulled and parts purchased, we CHECK.

Heck, now that I think about it, the best place to ask is at the thread with the list, or make the list in yours, and get the corrected list onto the end of that thread as well.

Mark; I think the problem we're having here is that there is not nor ever been a complete 939 rebuild / recap thread. for example.......

1.) I didn't finish out the list on my 939 thread with the transistors, after you listed all the caps. I did list the transistors I replaced 2-3 posts down but never collated them into the list.

2.) the question that pops up in my mind is, is the 9930 part for part identical to the 939 except for the faceplate? There may be subtle changes in the schematic. Who knows until we see the actual schematic. Granted all of the 9950 and others have been thru multiple recap threads, etc. but we've never had a 9930 here on the board for a rebuild.

Is the 9930 a part for part clone? If not then the parts have to be documented separately from the 939.

59Bonez: need you to compare the list in post #9 with the ACTUAL Transistors on the boards on the 9930. The manual parts lists (specifically transistors) will sometimes have a primary part and then a sub in parenthesis ( ). In this case the part could be either or. In the case of the 2sa725/726 the usual sub is the 2sa763 which is not a troublemaker and left alone. The 2sa725/726 are strongly recommended for replacement. So you have to look at the manual, and the unit to decipher what part you have. We need the ACTUAL PART NUMBERS from the board.

Also you're going to have to do the same thing with caps.

This way we can decipher whether the 939 and 9930 are the same or need different lists.

Thank you both.
I may have misled you a little bit, but not completely. Yes, I am looking for list of semiconductors (with Mouser#) that would be replaced when replacing the caps. By misleading, I mean I listed all the semiconductors, not just ones needed to be "updated" so to speak, because I did not know and could not figure out which ones need to be replaced. I am dumb enough to list all parts and learn which ones not to touch unless needed. So I listed them all. Expecting to be “educated” by the group.
Your replies were spot on. Don't replace the part until verification, is done . But one must start somewhere.

Like MTF, I made a spreadsheet of the caps I ordered and verified each part matched as I replaced it. I found 5 caps that did not match MTF's list. (939 vs. 9930 differences??) When I compared the part coming out the part going in, I found AWH-030-B was modified. Swapping the values of C1-C4 with each other. This new configuration matches the 9930 schematic. As noted in Post #1, I also found C53 on my AWE-041-x Tuner was 47uf 6v and not 4.7uf 6v in the list I was using. (I am assuming this was a “typo”.)

So.......
Right now I have updated "my" recap list to indicate what I have installed. I have not attempted the Tuner board at this time because it is doing just fine. But have compared what is listed with what the 9930 schematic indicates. No updates noted.

Per Larry’s request, I provided Larry with SX-9930 schematic images. Larry please look them over and let me know if you need better images. The scanned file (pdf) was not good enough for zooming, thus the extra 10 mb of files.

I will modify my semiconductor list to identify the one ones for updating and work with both of you to figure out the Mouser# needed.
At the same time I will look at my 9930 and see what is installed.

But while I am working on this could someone explain something to me? The AWG-027-0 Q3 to Q8 (in the 939 manual are listed as listed as 2SC1312, but in one of MTF lists the parts are listed as 2SC1313).

the 1312 and 1313 are almost the same with the exception of the Ucb and Uce on the 1313 being higher than the 1312. It could have been a typo on Marks part, or someone's unit actually had 1313's in it. They both take the KSC1845 as a replacement.

I'll get on the photo's in the next few days when I have some free time. Mark, the files are all photo's, and quite large but shot at an angle. I don't see this as too much of a problem, but sizing them correctly for printing will be a minor migraine. In any event I plan on taking a 939 schematic and checking part for part against the 9930 schematic, then noting the differences for posterity.

As for the C1 thru C4 reversal on the AWH030 board, my 939 is the same. It's probably one of those preproduction things that got changed on the line and the change wasn't sent to the drafting dept for a change sheet. IIRC I PM'ed Mark about it and we came to the conclusion that it was ok as is. I just went thru my thread again and thought I had mentioned them being ok as is , but all I said was I didn't mess with swapping them.

When you do the transistor list, do it by board with the board number, etc. Some transistors will have 2 or 3 different replacements depending on where it is and what it does. This is the engineering part that Mark does so well. But then he's been doing this stuff for more than 3 decades.

Board #, Q#, type (2sa726,2sc945, etc)....We'll fill in the blanks

I found the FULL SX-9930 schematic in a bunch of obscure PIONEER stuff on my desktop. And also the full schematic for the 939.

MARK: The 9930 has 2 changes on the POWER SUPPLY BOARD. Pin 24 is an offshoot of Pin8 (939 has pin 8 splitting off outside the board) and pin 25 is an offshoot on the board of Pin 14. Pin 14 on the 939 splits off the board. Those are the only changes I can find so far.

Mine is a an early 76 unit. I asked 59Bonez to get his serial and date it per the Equipment database thread. I'm thinking it's a '76 model. What the suffix is on the 25 pin board should come out with pics.

My 939 full scat (almost 3megs in pdf) is too big to upload here. So if you want a copy pm me an address i can send it too.

The serials from both units indicate that they are both 1976 models (based on a September starting date for the production year).

Bonez 9930 is WB1103472M (1976-FEB) Variant "F" (General Export 5 voltage version)

My 939 is VJ7915627M (1975 - Oct) Variant "KCU" (UL (USA) and CL (Canada) approved version....Single voltage 120V)

Les; look at the "my 939 shoots lightning" thread. On the 1st page is a picture of his POWER SUPPLY board. It's a "C" suffix board with 23 pins. Which makes me think I better check mine all the more. Also can you take a picture of your actual AWR-052 showing all 25 pins and the model # with suffix'es. The results may be more confusing or will settle the question of the 23 vs the 25 pin board.

Thanks


Larry

I "was" going to take pictures and post them, but camera battery is dead. and waiting for rain to stop for best lighting. battery being charged, now, but it is raining. (Darn Seattle weather). Will post pictures later. (now added)

The Power Supply board in "my 939 shoots lighting" is AWR-52-0. Not a -C. There are two ways to tell, besides looking at the part number of the board.
"-0" only has 23 pins. "-C" has 25 pins.

"-0" has 3 large "orange" resistors in lower left of picture and missing a resistor next to pins 5-8. "-C" has only 1 large "orange" resistor (R10) next to C12. R11 and R12 are no longer "orange" and added a second resistor next to R12. I think is R23. R22 is added next to pins 5-8. R11& R12 are no longer Metal Oxide (orange) and are changed from 820 ohms to 1.3K (R11) and 1.5K (R12). R22 is 2k ohm and R23 is 1.8k ohm.
(See attached)

SX-9930 Capacitor "Recap" list (Parts installed - less tuner board)

The following information is the final installation of the parts (capacitors) I did on my SX9930 to update the parts. Do not use this list, without double checking your boards are the same level as the ones I have listed. There are some differences in board mod levels (the dash -0, -A, -B etc.) That normally means some part or parts are different. I have noted the changes I found in the table below, plus a correction to the Tuner C53.


Name : Board : Location : Pioneer : Mouser# (Oct 2014) : Delta's
Tuner : AWE-041-0 : C22 : 4.7uF 25v CEA : 647-UPW1V4R7MDD : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C24 : 10uF 16v CEA : 647-UPW1E100MDD6 : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C25 : 0.47uF 50v CEA : 667-ECQ-V1H474JL : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C26 : 10uF 16v CEA : 647-UPW1E100MDD6 : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C31 : 1uF 50v CEA : 647-UKL1H010KDDANATD : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C33 : 100uF 16v CEA : 647-UKL1E101KPDANATA : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C34 : 47uF 16v CEA : 647-UPW1E470MDD : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C37 : 0.33uF 25v CSSA : 598-DSF050J334 : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C38 : 1uF 10v CSSA : 647-UKL1H010KDDANATD : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C39 : 0.47uF 25v CSSA : 667-ECQ-V1H474JL : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C42 : 100uF 16v CEA : 647-UKL1E101KPDANATA : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C43 : 2.2uF 25v CEA : 647-UKL1H2R2KDDANA : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C44 : 2.2uF 25v CEA : 647-UKL1H2R2KDDANA : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C45 : 0.47uF 50v CEA : 667-ECQ-V1H474JL : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C46 : 0.47uF 50v CEA : 667-ECQ-V1H474JL : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C52 : 4.7uF 25v CEA : 647-UPW1V4R7MDD : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C53 : 47uF 6v CEA : 647-UPW1A470MDD6 : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C58 : 10uF 16v CEA : 647-UPW1E100MDD6 : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C60 : 0.1uF 25v CSSA : 667-ECQ-V1H104JL : Verified board matches – not changed as of Aug 2015.
Tuner : AWE-041-0 : C63 : 220uF 16v CEA : 647-UKL1C221KPDANA : Verified board matches – not changed as of Aug 2015.
Note C53 in other lists is shown as “4.7” – Double check before ordering .
: : :
Muting : AMW-063-0 : C1 : 4.7uF 25v CEA : 647-UPW1V4R7MDD :
Muting : AMW-063-0 : C2 : 4.7uF 25v CEA : 647-UPW1V4R7MDD :
Muting : AMW-063-0 : C3 : 1uF 25v CSSA : 647-UKL1H010KDDANATD :
: : :
Equalizer : AWF-013-0 : C1 : 2.2uF 25v CSSA : 647-UKL1H2R2KDDANA :
Equalizer : AWF-013-0 : C2 : 2.2uF 25v CSSA : 647-UKL1H2R2KDDANA :
Equalizer : AWF-013-0 : C5 : 470uF 6v CEANL : 647-UKL0J471MPD :
Equalizer : AWF-013-0 : C6 : 470uF 6v CEANL : 647-UKL0J471MPD :
Equalizer : AWF-013-0 : C9 : 100uF 6v CEANL : 647-UKL1E101KPDANATA :
Equalizer : AWF-013-0 : C10 : 100uF 6v CEANL : 647-UKL1E101KPDANATA :
Equalizer : AWF-013-0 : C11 : 10uF 10v CEANL : 647-UKL1C100MDDANATD :
Equalizer : AWF-013-0 : C12 : 10uF 10v CEANL : 647-UKL1C100MDDANATD :
Equalizer : AWF-013-0 : C19 : 100uF 25v CEANL : 647-UKL1E101KPDANATA :
Equalizer : AWF-013-0 : C20 : 100uF 25v CEANL : 647-UKL1E101KPDANATA :
Equalizer : AWF-013-0 : C21 : 220uF 16v CEANL : 647-UKL1C221KPDANA :
: : :
Control AMP : AWG-027-A : C1 : 0.33uF 25v CSSA : 598-DSF050J334 :
Control AMP : AWG-027-A : C2 : 0.33uF 25v CSSA : 667-ECQ-V1H334JL :
Control AMP : AWG-027-A : C7 : 100uF 10v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C8 : 100uF 10v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C13 : 2.2uF 25v CSSA : 647-UKL1H2R2KDDANA :
Control AMP : AWG-027-A : C14 : 2.2uF 25v CSSA : 647-UKL1H2R2KDDANA :
Control AMP : AWG-027-A : C15 : 4.7uF 35v CEA : 647-UPW1V4R7MDD :
Control AMP : AWG-027-A : C16 : 4.7uF 35v CEA : 647-UPW1V4R7MDD :
Control AMP : AWG-027-A : C23 : 4.7uF 25v CEANL : 647-UKL1H4R7KDDANA :
Control AMP : AWG-027-A : C24 : 4.7uF 25v CEANL : 647-UKL1H4R7KDDANA :
Control AMP : AWG-027-A : C25 : 10uF 16v CEA : 647-UPW1E100MDD6 :
Control AMP : AWG-027-A : C26 : 10uF 16v CEA : 647-UPW1E100MDD6 :
Control AMP : AWG-027-A : C29 : 100uF 10v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C30 : 100uF 10v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C31 : 4.7uF 35v CEA : 647-UPW1V4R7MDD :
Control AMP : AWG-027-A : C32 : 4.7uF 35v CEA : 647-UPW1V4R7MDD :
Control AMP : AWG-027-A : C39 : 4.7uF 25v CEANL : 647-UKL1H4R7KDDANA :
Control AMP : AWG-027-A : C40 : 4.7uF 25v CEANL : 647-UKL1H4R7KDDANA :
Control AMP : AWG-027-A : C41 : 10uF 16v CEA : 647-UPW1E100MDD6 :
Control AMP : AWG-027-A : C42 : 10uF 16v CEA : 647-UPW1E100MDD6 :
Control AMP : AWG-027-A : C45 : 100uF 10v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C46 : 100uF 10v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C47 : 2.2uF 25v CSSA : 647-UKL1H2R2KDDANA :
Control AMP : AWG-027-A : C48 : 2.2uF 25v CSSA : 647-UKL1H2R2KDDANA :
Control AMP : AWG-027-A : C49 : 100uF 16v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C50 : 100uF 16v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C51 : 100uF 16v CEA : 647-UPW1E101MED :
Control AMP : AWG-027-A : C52 : 100uF 16v CEA : 647-UPW1E101MED :
: : :
Power AMP : AWH-030-B : C1 : 1uF 25v CSSA : 647-UKL1H010KDDANATD : Different from 939
Power AMP : AWH-030-B : C2 : 1uF 25v CSSA : 647-UKL1H010KDDANATD : Different from 939
Power AMP : AWH-030-B : C3 : 0.47uF 25v CSSA : 667-ECQ-V1H474JL : Different from 939
Power AMP : AWH-030-B : C4 : 0.47uF 25v CSSA : 667-ECQ-V1H474JL : Different from 939
Power AMP : AWH-030-B : C5 : 33uF 16v CEA : 647-UPW1C330MDD :
Power AMP : AWH-030-B : C6 : 33uF 16v CEA : 647-UPW1C330MDD :
Power AMP : AWH-030-B : C11 : 330uF 10v CEA : 647-UPW1A331MPD :
Power AMP : AWH-030-B : C12 : 330uF 10v CEA : 647-UPW1A331MPD :
: : :
Protection : AWM-062-0 : C1 : 0.22uF 10v CSSA : 667-ECQ-V1H224JL :
Protection : AWM-062-0 : C2 : 0.22uF 10v CSSA : 667-ECQ-V1H224JL :
Protection : AWM-062-0 : C3 : 330uF 6v CEA : 647-UPW1A331MPD :
Protection : AWM-062-0 : C4 : 330uF 6v CEA : 647-UPW1A331MPD :
Protection : AWM-062-0 : C5 : 4.7uF 25v CEA : 647-UPW1V4R7MDD :
Protection : AWM-062-0 : C6 : 100uF 16v CEA : 647-UPW1E101MED :
: : :
Power Supply : AWR-052-C : C11 : 47uF 63v CEA : 647-UPW2A470MPD :
Power Supply : AWR-052-C : C12 : 47uF 50v CEA : 647-UPW2A470MPD :
Power Supply : AWR-052-C : C13 : : 647-UPW2A471MHD :
Power Supply : AWR-052-C : C14 : : 647-UPW2A471MHD :
Power Supply : AWR-052-C : C15 : 100uF 63v CEA : 647-UPW1J101MPD :
Power Supply : AWR-052-C : C16 : 100uF 63v CEA : 647-UPW1J101MPD :
Power Supply : AWR-052-C : C17 : 47uF 16v CEA : 647-UPW1E470MDD :
Power Supply : AWR-052-C : C18 : 47uF 16v CEA : 647-UPW1E470MDD :
Power Supply : AWR-052-C : C21 : 47uF 50v CEA : 647-UPW2A470MPD :
Power Supply : AWR-052-C : C22 : 2200uF 10v CEA : 647-UPW1A222MHD :
Power Supply : AWR-052-C : C23 : 220uF 16v CEA : 647-UPW1C221MPD :
Power Supply : AWR-052-C : C24 : : 647-UPW1V102MHD :

I completed the "recap" minus the Tuner board in the spring of 2015. Everything worked just fine. No issues with the parts replaced. I will do the tuner board when I get the transistor list worked out.

SX-9930 Orginal Transistor list. (not all transistors listed)

This is a list of most of the installed transistors in my SX-9930. I have not included the big power ones (as I did not want to disassemble the unit to get the numbers.)

Please look over this list and let me know which ones I should update. I have to replace Q3 on the protection board it is breaking down when hot.

Name : Board : Location : My 9930 original part
Tuner : AWE-041-D : Q3 :
Tuner : AWE-041-0 : Q4 :
Tuner : AWE-041-0 : Q10 : C945 TQ25Y
Tuner : AWE-041-0 : Q11 : A725 S56F
Tuner : AWE-041-0 : Q12 : A725 S56F
Tuner : AWE-041-0 : Q13 : C945 TQ25Y
Tuner : AWE-041-0 : Q14 : C945 TQ25Y

Muting : AMW-063-0 : Q1 : C945 TQ25Y

Equalizer : AWF-013-0 : Q1 : A725 S57F
Equalizer : AWF-013-0 : Q2 : A725 S57F
Equalizer : AWF-013-0 : Q3 : A725 S57F
Equalizer : AWF-013-0 : Q4 : A725 S57F
Equalizer : AWF-013-0 : Q5 : C1313 S56G
Equalizer : AWF-013-0 : Q6 : C1313 S56G
Equalizer : AWF-013-0 : Q7 : C1313 S56G
Equalizer : AWF-013-0 : Q8 : C1313 S56G

Control AMP : AWG-027-A : Q1 : A725 S54G
Control AMP : AWG-027-A : Q2 : A725 S54G
Control AMP : AWG-027-A : Q3 : C1312 S44G
Control AMP : AWG-027-A : Q4 : C1312 S44G
Control AMP : AWG-027-A : Q5 : C1312 S44G
Control AMP : AWG-027-A : Q6 : C1312 S44G
Control AMP : AWG-027-A : Q7 : C1312 S44G
Control AMP : AWG-027-A : Q8 : C1312 S44G

Power AMP : AWH-030-B : Q1 : A726 S59G1
Power AMP : AWH-030-B : Q2 : A726 S59G1
Power AMP : AWH-030-B : Q3 : A726 S59G1
Power AMP : AWH-030-B : Q4 : A726 S59G1
Power AMP : AWH-030-B : Q5 : 2SA809 GU This one is different from what was expected
Power AMP : AWH-030-B : Q6 : 2SA809 GU This one is different from what was expected
Power AMP : AWH-030-B : Q7 : 2SC1451 HZ
Power AMP : AWH-030-B : Q8 : 2SC1451 HZ
Power AMP : AWH-030-B : Q9 : NEC D381 M58B
Power AMP : AWH-030-B : Q10 : NEC D381 M58B
Power AMP : AWH-030-B : Q11 : NEC B536 M56B
Power AMP : AWH-030-B : Q12 : NEC B536 M56B

Protection : AWM-062-0 : Q1 : C869 36D
Protection : AWM-062-0 : Q2 : C869 36D
Protection : AWM-062-0 : Q3 : C945 TQ159
Protection : AWM-062-0 : Q4 : C945 TQ159
Protection : AWM-062-0 : Q5 : NEC A733 Q15Y
Protection : AWM-062-0 : Q6 : C945 TQ159
Protection : AWM-062-0 : Q7 : C1384 R 5N

Power Supply : AWR-052-C : Q1 : SANYO D313D 5L
Power Supply : AWR-052-C : Q2 : C1318 (8) 5M
Power Supply : AWR-052-C : Q3 : C1318 (8) 5M
Power Supply : AWR-052-C : Q4 : SANYO B507D 5K
Power Supply : AWR-052-C : Q5 : A720 (8) 5A
Power Supply : AWR-052-C : Q6 : SANYO D313E 6A