I get a lot of questions and PM's regarding the "Dreaded Sony Bond Glue" issue, a.k.a. DSBG so I thought I'd start a thread dedicated to the usual and customary parts list for each amp, etc., we've all run into.
I'll start with the most commonly asked about amp, the Yamaha M-80, and try to build from there. If everyone contributes, we can make this a nice reference thread for DIY repair. Please add to the thread, I will try to combine them all into the first post. We can expand the R&R items to include values and descriptions if anyone desires. Let's try to keep this as a reference for parts and basic R&R requirements, and not clutter up the thread with ongoing repair help. Please start your own thread if you need assistance with a repair.
Yamaha M-80:
Detailed M-80 Thread
Link to Pics: http://www.audiokarma.org/forums/showpost.php?p=3433046&postcount=4
Multiple models DSBG Thread
Excellent newer post by member amr2 on repairs here: http://www.audiokarma.org/forums/showthread.php?t=591887
I'll start with the most commonly asked about amp, the Yamaha M-80, and try to build from there. If everyone contributes, we can make this a nice reference thread for DIY repair. Please add to the thread, I will try to combine them all into the first post. We can expand the R&R items to include values and descriptions if anyone desires. Let's try to keep this as a reference for parts and basic R&R requirements, and not clutter up the thread with ongoing repair help. Please start your own thread if you need assistance with a repair.
Yamaha M-80:
Detailed M-80 Thread
- C111, C112 | 220uf/6.3V
- I use Nichicon KZ's if possible, Any quality audio grade cap OK. FG's seem to be plentiful lately (March 2015), you may have to step up +1 or +2 voltages.
- C162, C163 | 1000uf/100V
- I use Nichicon KW, KG, or FW, hard to find. (1-17-11) Digikey has FW in stock. Mouser had stock March 2015.
- D119, D120
- RD3.0EB2 3.01-3.22 20mA .5W - use any .5W 20mA 3V DO-35 Zener (1N5225B)
- R125, 126
- 390 Ohm .25W Carbon Film Flameproof (per schematic) 330 Ohm per parts list and pulls.
- R137, 138
- 1K Ohm .25W Carbon Film Flameproof
- R233, 234
- 430/470 Ohm .25W Carbon Film Flameproof (measure as the schem differs on these) Parts LIST shows 430
- R123/229/231 - R124/230/232
- 330K Ohm Carbon Film
- Often R226
- 2W 3.9K Metal Oxide Film
- Mouser part link These are flame resistant.
- Often C123, 124
- | 39pf 500V mica cap | WIMA, Panasonic or any quality polypro or pps film cap
- Usually have to remove and clean the busbars and TR113, 114, 123, 124 and replace a whole grip of jumpers.
- C164 is a 47uf/25V BIPOLAR cap, not the 100uf cap indicated in the schematic.
- Nichicon MUSE ES series bipolar are usually readily available, here's a 35V part.
- http://www.mouser.com/ProductDetail/Nichicon/UES1V470MPM/?qs=sGAEpiMZZMtZ1n0r9vR22e0BBN1kF1oiBHhx1aXKI5w%3d
- Watch out for the schematic errors, particularly for units over serial 2401. The schematic does not include the TSB66H. There's an updated schematic I made with the TSB on sportsbill. I'm going to try to find time to add the TSB66H to the PCB images. There are caps and resistors that are part of the TSB that are not in the SM PCB diagrams.
Link to Pics: http://www.audiokarma.org/forums/showpost.php?p=3433046&postcount=4
Multiple models DSBG Thread
Excellent newer post by member amr2 on repairs here: http://www.audiokarma.org/forums/showthread.php?t=591887
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