Daewoo DV-135, Руководство по обслуживанию

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16
5. Trouble Shooting Guide
DV-135
VIDEO OUT Abnormal
Check if the VIDEO
JACK is OK.
Check if the IC851 is OK.
Check MPEG PCB.
Refer to VIDEO JACK.
Check if the IC781
PIN(7) is OK.
OK
Refer to POWER SUPPLY
circuit.
Yes
Yes
No
No
No
Yes
Check if the IC781
PIN(2)(3) is OK.
Check FRONT PCB.
No
Yes
SOUND Abnormal
Check if the RY702
is OK.
Check if the IC710
PIN(6)(10) waveform is
OK.
OK
Refer to F_RLY_CONTROL.
Check if the IC710
PIN(8)(9) is OK.
Check DSP PCB.
Refer to POWER SUPPLY
circuit.
Yes
Yes
No
No
No
Yes
OPEN/CLOSE Abnormal
Check if the FRONT
CONTROL is OK.
Check if the CN706
is OK.
Check if the ATAPI
Cable if is normally.
Check PN303 if
is normally.
Check if the PN303
PIN(3)(5) level is OK.
Check if the
PN101A PIN(3) to
(18) waveform is OK.
Replace MPEG PCB.
Check if the PN402
is OK.
Check PN101E if
is normally.
Check POWER SUPPLY
circuit.
Reconnect it.
Reconnect it.
Refer to FRONT PCB.
Reconnect it.
Check if the
PN303 PINS(1)(2) level is
OK.(0V,5V)
Replace DECK MECHA DVD.
Check if the
IC102 PIN(14)(180) is
OK.(MT1388)
Refer to DRIVER circuit of
TROPEN and PWMOUT1.
No
No
No
No
No
No
No
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
Yes
Replace DECK MECHA DVD.
No
-. Audio Part