petehall347
the brandy coffee man
and:beer:
wondering if i will get to 5000 posts before you fix it at post 345 ..
wondering if i will get to 5000 posts before you fix it at post 345 ..
Ok...I am sure that the outputs are mirror-imaged, NPN-PNP-PNP-NPN. The driver tr's too. I will pull them today and test them. I will also pull vr2/vr4 and test. I am also sure the diode is hooked up correctly. I will also change R52/54 (220 ohmers) again. Are there other resistors in the vicinity that should be checked? R60/66? R72/78? R82/04?
Hey Kevin.......2sb536 are the blue drivers......and 2sd381 are the gray drivers. Check post #293. Good pictures there. They are mirrored exeactly as on the left channel....I will check them though...also the pre-drivers.
The unit has ONLY been on dbt power during all this. NEVER real power. So do you still think some components could be stressed?
Kevin....I have been looking at the stvh3 diodes. The symbol on the output-board is like this: ->|-. The 'dot' on the diode is mounted to the cathode end. NOW.....on the main board the symbol(on the scat) is like this: >>>|. The wire from the outpot board's cathode should go where? To the cathode end on the main board??? I need this confirmed.
If I mounted that wrong.....I AM AN IDIOT!
if the good channel is wired the same as the bad channel surely it is correct .? follow the dots from good channel see where they go then do same with bad channel ..assuming the components test good then logically the problem is somewhere else or things are testing good when they aren't .. yes it can happen ..
Kevin.....in my SM.....the ANODE connects to R38. Do we agree on the symbol in post #349? Cathode is pointing inwards on the main board.
I think both diodes were hooked up wrong..............the pictures in post #348 should make it quite clear......black wire from output board is the cathode. The cathode is then mounted inwards(towards the center of the main board)...............ie. black wire inwards.