pioneer deh-3050mp cd problem

[ian33]

am workin on a pioneer deh-3050mp cd player and the cd part is does not funtion.all i get is this error code A0 .I i am only getting 3.2v on the board with d cd mechanism.to me it is a bit low??
any pointers would be appreciated/

[ian33]

after looking at a schematic for the deh-2959mp which someone told me it is the same with the 3050mp.i see that on cn651 pin one and two is at 7.5v and these two pins are connected to the emmiter of Q991 (D2375). i replace that transistor with a new one but no change.am geting 13.2v its collector and 0v on the base and the emmiter.
so i unsolder the emmiter and apply 7.6v using a regulator to the pad and now d cd part works.now am just tryin to find out why the 7.5v is missing, am blank

[Perry Babin]

Send me a copy of the manual and I'll try to help.

babin_perry@yahoo.com

[Perry Babin]

What is the DC voltage on pin 126 of the microcontroller (IC601)?

[ian33]

with the emitter of Q991 solder back in i have 0v on pin 126( ic601)
the part number of that ic is pn5013b and the sechematic has pn5010a

[Perry Babin]

Does pin 126 go to the base of Q992?

Does the collector of Q992 connect to the base of Q991?

[ian33]

yes pin 126 is connected pin 2 of Q992 Q992 is a SM with six pins

the base of Q991 is connected to pin 3 Q992

[Perry Babin]

Do you read 3.3v DC on any pin on the connector that connects the main and CD boards?

[ian33]

if you mean connector cn651 i am geting 3.2v on some pins

[Perry Babin]

When you fed power directly to the CD player, did it work perfectly?