Sony HCDSHAKEX70 - Page 28

HCD-SHAKE10/SHAKE30/HCDSHAKEX10/HCDSHAKEX30/HCDSHAKEX70
28
2CH DAMP / 4CH DAMP / MOTHERBOARD Mount Diagnosis Flow (1/2)
PLAY MUSIC
Is there audio output from 2CH DAMP/ 4CH DAMP Board?
MOTHERBOARD Board
2CH DAMP/4CH DAMP Board
Checks 13V output of CN001 1pin(Main ON). Is the power voltage OK? Checks 3V output of CN001 8pin(Main ON). Is the power voltage OK? Checks +62.5V output of CN1001 10pin(+VH), -62.5V output of CN1001 2pin(-VH) and -45.5V output of CN1001 1pin -45.5V. Is the power voltage OK?
Checks OUT terminal -50.5V output of REG IC1005. Or, checks GND and OUT Terminal with Tester. Is it shorted out?
Reinserts the cable or Exchanges. If there are no problems, checks output of Switching Regulator Board. Reinserts the cable or Exchanges. If there are no problems, checks output of Main ON of MOTHERBOARD Board side. Reinserts the cable or Exchanges. If there are no problems, checks output of Switching Regulator Board.
Checks circumference circuit of REG IC1005. If there are no problems, exchanges IC1005.
A
B
Yes
Yes Yes Yes
Yes
No
No
No No No
Yes
SYSSET
2019/10/2523:34:43(GMT+09:00)