DAEWOO ELECTRONICS DV 115, Service Manual

Page: 17 / 63

17
5. Trouble Shooting Guide
DV-115/125
PICK-UP unit control
Abnormal
Check if the CN706
is OK.
Check if the ATAPI Cable
is normally.
Check if the
PN302
PINS(1)(2)(5)(6) level is
OK.
Check if the PN302
PIN(3) is OK.
Check if the IC102
PIN165 is OK.
Check PATTERN Open
or Short.
Refer to IC102 (MT1388) or
Replace DECK MECHA DVD.
Check Power Supply Circuit.
Reconnect it.
Check if the IC302
PINS(1)(23) is OK.
Refer to IC302(BA5954FN) or
Replace DECK MECHA DVD.
Check if the IC102
PINS(17)(18) is OK.
Check PATTERN Open
or Short.
Replace DECK MECHA DVD.
Refer to IC102 (MT1388) or
replace DECK MECHA DVD.
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
DISC READ Abnormal
Check if the CN706 is
OK.
Check if the ATAPI Cable
is normally.
Refer to PICK-UP Unit or
Replace DECK MECHA DVD.
Check POWER SUPPLY
circuit.
Refer to IC302(BA5954FN) or
Replace DECK MECHA DVD.
Reconnect it.
Yes
Yes
No
No
Check if the IC302
PINS(1)(26) is OK.
Refer to IC102(MT1388).
Replace DECK MECHA DVD.
No
Yes
Check if the PN301
PINS(1)(2)(3)(4) is OK.
Yes
No
VIDEO OUT Abnormal
Check if the PN401
is normally.
Check if the IC410
PINS(39)(40)(43)(44)(47)
(48) is OK.
Check VIDEO PCB.
Check if the IC410
PIN(1) to (8) is OK.
Check DECK MECHA DVD or
MPEG PCB.
Replace DECODER IC
CS4955.
Reconnect it.
No
No
No
Yes
Yes
Yes
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