[SOLVED]820-2879 Green Light Dark

aurel476

New member
PP3V42_G3H 6,3 ohms

R6995 127,3 ohms
R6996 127,3 ohms

if I remove resistance R6995 ou of circut 348K and R6996 200K out of circut

same value with another donnor
 

aurel476

New member
removed L6995 short to gnd pin 2 PP3V42_G3H :/

what do I have to do ? inject voltage in PP3V42_G3H ?
 

aurel476

New member
Pin 4 of Y2810 to GND 7,2 Mohms
Pin 1 7,20 ohms

Does that mean the MCP is dead ?

I have new chip but A2, in board it's A3

(on Mac mini 2010 succeful MCP89MZ-A2 to MCP89MZ-A3 but in the other direction probably work ?)
 
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dukefawks

Administrator
MCP is dead to start with. I doubt the chips are new, reballed garbage that are likely dead too. A2 and A3 versions are compatible.
 

aurel476

New member
Solved after replaced MCP no short to gnd PP3V42, replaced bad fuse for backlight and ISL destroyed by customer (ppbus low). (display port not work fuck)

Thank you I would not find that this comes from MCP
 
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