29
MHC-V21/V21D
Ver. 1.1
Assembly back the set.
Make sure connect the connector (CN2021).
First time repair?
MOTHERBOARD board damaged. Exchange the complete MOTHERBOARD board.
Exchange original damaged IC.
Repair is successful.
Volume set to Max, sound field set to default, Mega Bass set to “ON”.
Play song “Billie Jean By Michael Jackson” for 2 minutes.
Check for any abnormality:
Protect 3 is displayed/ Set Reset to DEMO/ No display etc.
No
Yes
No
Yes
MOTHERBOARD Board Mount
Ampli
fi
er Diagnosis Flow (3/3)
3. IC and MOTHERBOARD board after replace checking guide
After IC2002 and MOTHERBOARD board changed, check as below:
SYS SET
2018/08/28 21:56:45 (GMT+09:00)