Sony MHC-V50D

MHC-V50/V50D
30
1. “PROTECT3” is displayed on the fl uorescent indicator tube after turning the power on DAMP Mount Diagnosis Flow (1/2)
"PROTECT3" is displayed on the screen display panel after turning the power on.
Yes
Check that DAMP board IC2002 pin 27, 32, 35 and 39 is short to GND.
No
No
Check and replace the speaker.
"PROTECT3" is not displayed, when removing the speaker and turning the power on.
Yes Yes
Exchange DAMP board IC2002 (6-723-248-01)
No
Yes
DAMP board damage. Exchange complete DAMP board.
Exchange DAMP board IC2003 (6-723-248-01)
Check that DAMP board IC2003 pin 27, 32, 35 and 39 is short to GND.