I am looking for the wiring diagram of a Macintosh color class SG3114YPC2D .. Thanks
Schematic Macintosh Color Class
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Macintosh color class model SG3114YPC2D, does not turn on, I tried to check the fuse and it turned out good ... thanks...
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by madan1Good day everyone.
I have on the bench an amp board from DALI SUB E-12F. It is class D amp with a smps on the same board.
The issue is that it powers off way before the rated power is reached (the protection circuit kicks in). It has an independent standby power supply, which stays on after the main power supply is turned off via a relay on the primary side (thus there is no reason to believe that the protection is triggered from the smps IC on the primary side).
The normal value of the positive and negative power rails is +/- 43V.
The positive rail stays...-
Channel: Troubleshooting Audio Equipment
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by atunguydIi wonder if anyone can help me. I have a Acer x163w monitor which is not powering up. The PSU main capacitor's one leg had completly come off - I replaced it but the PSU is still not outputting DC. I found the monitor in questions service manual here on manuals lib but the schematic in there is a completely different - the schematic shows no mosfet to drive the transformer while the one I have does use a mosfet - also the schematic shows only one optocoupler but mine has two.
The PSU board is labelled FM-20A02-AAA made by APD as per the image below. I am trying to find a schematic for this...-
Channel: Schematics and Boardviews
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by gersrtIm sure this is simple for most people out there but Im a bit new to this. Looking for help with the attached please.
Simple enough, except a little unsure about the vbus wire up. I can see on 2 of the connectors the 4 wires are joined.... but cant figure out if they go off somewhere . Do.i just join the four points on both conectors and leave. Or do the 4 wires join together on both conectors and then join to each other.
Thanks... -
by SdhjmI'm asking if anyone has a schematic for the dag3pmb18b0 rev:b g3p board. I found a schematic of the board, but I don't have the component numbers. If anyone needs a schematic, I can send it to you, but I don't have the numbers....
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Channel: Schematic Requests ONLY!
11-26-2025, 03:43 AM -
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