LG 42PC1RR-TL (CHASSIS:MF-056L) Service Manual ▷ View online
- 21 -
7. Time shift Mode ( DVR BOARD )
(1) Symptom
1) Doesn’t work time shift mode.
2) Can’t enter to recorded list.
3) Can’t record AV/RF.
2) Can’t enter to recorded list.
3) Can’t record AV/RF.
(2) Check following
Is time shift mode on?
Are the cables connected
well?(12pin, 4pin,40pin)
Insert cables well.
Change time shift mode
from off to on.
Yes
No
Yes
Yes
Yes
Yes
No
Power B/D works well?
HDD jumper is located
in Master?
31pin flat cables are
connected well?
Check U1, U7, U11 and
These ICs are wrong?
Change ICs?
Change power B/D.
Place jumper to
master position.
Connect 31pin cable.
Change the HDD
Is it ok?
Change the DVR B/D.
Yes
Yes
No
No
No
No
- 22 -
8. Time shift sound and Recorded video sound ( DVR BOARD )
(1) Symptom
1) SOUND doesn’t come out.
(2) Check following
MUTE key on?
Sound cable is OK?
Connect speak cable
Sound is ok?
Turn off the mute key.
Are power cables
connected well.
Connect power cables
/power B/D.
Yes
Yes
No
No
No
No
Yes
Yes
Yes
No
Is 31pin cable ok?
Check speakers
Are they ok?
Check U13, U14, U1, U7
Check MSP(IC406),
IC404 Is it ok?
Connect 31p cable.
Change the speakers.
Change the ICs
Is it ok?
Change B/D.
Yes
No
No
No
- 23 -
9. Recorded video ( DVR BOARD )
(1) Symptom
1) Can’t play the recorded video.
(2) Check following
Check 31pin flat cable
Is it ok?
Check 40pin, 4pin HDD
cable Is it ok?
Connect cable well.
Connect 31pin well.
Check U11, U1, U7
Is it ok?
Check 2068(IC1206)
Is it ok?
Change HDD
Is it ok?
Change B/D.
Yes
No
Yes2
No
No
Yes
No
No
Remove the recorded lists and
Record one more time and Play
again Is it ok?
Yes1
- 24 -
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