Samsung HT-TZ315 Service Manual page 41

4-1-5 DECK Failure
Power On
Disc Insert
Does disc spin stuck?
No,
Spin OK
How about Power Pin?
OK,
No Problem
How about Pickup
Power Reference (MVREF)?
CD
Check CD Signal
(MIC1 139pin DVD/CD)
 Refer to wave pattern
image of Fig. 4-13.
Samsung Electronics
Yes,
Stuck
NG
NG
OK,
No Problem
Disc Judgment
Disc Inserted
NO DISC
DISC ERROR
Not Like
Change DECK
This
Please check
Main PCB and Deck
connection.
(CN01, CN02, CN03)
Please check
CN03 14pin RF50V: 4.8V ~ 5V
MIC1 163pin VD33: 3.2V ~ 3.3V
RIC4 8pin MVCC: 4.8V ~ 5V
RIC4 19pin MVCC: 4.8V ~ 5V
Please check
MIC1 157pin MVREF: 2.0V ~ 2.1V
But
(MIC1 139pin DVD/CD)
or
Not Like
This
NG
Reassemble
Main PCB and DECK
Different
Change
MAIN PCB or SMPS
Different
DVD
Check DVD Signal
 Refer to wave pattern
image of Fig. 4-13.
Troubleshooting
4-23