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– 56 –

Yes

Yes

Yes

Yes

No

No

No

No

LCD (FL2001) is not functioned.

Is the voltage of 5V supplied to Pin(56) of IC2001 ?

Is there 38 kHz oscillation at Pin (60) of IC2001 ?

Check the signal lines of FP-DIN, FP-DOUT, 
FP-CLK, FP-STB of IC2001 and CN1001 ?

Replace the LCD (FL2001).

Check the EV 5 V line.

Check R2001, C2004, IC2001 and their periphery.

Check or replace IC2001 and DVD Main CBA unit.

The key operation is disabled.

Is key switch contact (SW2001-2003, 2005-2007) 
and installation state normal ?

Is the control voltage normally inputted into  
Pins (44-47, 50, 51) of IC2001 ?

Check the key switches (SW2001-2003, 
2005-2007), and their periphery circuit.

No operation is possible from the remote control unit.

Operation is possible from the DVD, but no
operation is possible from the remote control unit.

Is no operation possible if replacing the remote 
control unit ?

Replace the infrared remote control receiver.

Original remote control unit is poor.

Check the line between the infrared remote control 
receiver and Pin (23) of CN1001.

Replace DVD Main CBA unit.

Is the "L" pulse sent out Pin (1) terminal of receiver
when the infrared remote control is activated ?

Is the "L" pulse signal supplied to the Pin(25) of 
CN1001 from Pin (1) of receiver ? (Be operated by 
SEARCH (-), SEARCH (+), PLAY, STILL/PAUSE, 
STOP, POWER and OPEN/CLOSE button.)

Yes

Yes

Yes

Is 5V voltage supplied to the Pin (3) terminal of
the infrared remote control receiver (RM2001) ?

Yes

Yes

No

P-ON 12 V is not outputted.

Is P-ON12 V voltage supplied to the collector of Q1002 ?

Does the P-ON switch circuit operate normally ?
(Q1005, Q1006, D1036, etc.)

Replace Q1002.

Check D1009, C1012 and the periphery circuit.

Check each component and if poor, then replace.

Yes

Yes

No

No

No

Check EV 5 V line.

No

No

– 57 –

P-ON 1.8 V is not outputted. 

The disc tray cannot be opened and closed. 
(It can be done using the remote control unit.)

The disc tray cannot be opened and closed.

Is 2.5 V voltage supplied to Pin (1) of IC1002 ?

Is 5 V pulse supplied to Pin (46) of IC2001 when 
the OPEN/CLOSE button is activated on the DVD ?

See FLOW CHART NO. 13. <The disc tray cannot be opened and closed.>

Is the "H" pulse inputted into Pin (4) of IC1002 ?

Replace IC1002.

Replace the DVD Main CBA Unit.

No improvement can be found.

Replace the DVD Mecha.

Check D1013, C1014 and their periphery circuit.

Check PWRCON line.

Check the SW2003 and OPEN/CLOSE button.

The malfunction of the original DVD Main CBA Unit. 

Yes

Yes

No

Yes

No

No

No

Yes

P-ON 3.3 V is not outputted.

Is 3.3 V voltage supplied to the emitter of Q1011 ?

Does the P-CON switch circuit operate normally ?
(Q1005, Q1006, etc.)

Replace Q1011.

Check D1008, D1015, C1007, C1038 and their 
periphery circuit.

Check each component and if poor, then replace.

Yes

Yes

No

No

P-ON 5 V is not outputted. (PON 12 V is outputted normally.)

Is 5 V voltage supplied to the collector of Q1004 ?

Is the "H" pulse inputted into the base of Q1004 ?

Replace Q1004.

Check D1030, D1048, C1035, C1048 and their 
periphery circuit.

Check Q1004, D1046 and the periphery circuit.

Yes

Yes

No

No

– 58 –

[No Disc] indicated. (When the focus servo is not functioning.)

FLOW CHART NO.16
[No Disc] indicated. (When the laser beam does not light up.)

FLOW CHART NO.17
Both functions of picture and sound do not operate normally. 

Replace the DVD Main CBA Unit.

Replace the DVD Mecha.

No

Yes

Replace the DVD Main CBA Unit.

Replace the DVD Mecha.

No

Yes

Replace the DVD Main CBA Unit.

Replace the DVD Mecha.

No

Yes

No improvement can be found.

The malfunction of the original DVD Main CBA Unit. 

No improvement can be found.

The malfunction of the original DVD Main CBA Unit. 

No improvement can be found.

The malfunction of the original DVD Main CBA Unit. 

[No Disc] indicated. (When the focus error occurs.)

Replace the DVD Main CBA Unit.

No improvement can be found.

The malfunction of the original DVD Main CBA Unit. 

Replace the DVD Mecha.

No

Yes

– 59 –

Picture does not appear normally.

Set the disc on the disc tray, and playback.

Are the following video signals inputted into each 
pin of IC1402 ?

Replace the DVD Main CBA Unit or DVD Mecha .

Is 5V voltage applied to the pin (1, 3, 5, 34) of 
IC1402 ?

Check or replace IC1402 ?

Check the periphery of JK1401 from 
Pins (30) of IC1402.

Check the peripheryof JK1401 from 
Pin (27) of IC1402.

Check the periphery of JK1401 from 
Pin (33) of IC1402.

Check the periphery of JK1602 from 
Pins (18, 21, 24) of IC1402.

Are the following video signals outputted to each 
pin of IC1402 ?

Are the video signals outputted to the specific 
output terminal ?

Are the composite video signals outputted to the 
VIDEO OUT terminal (JK1401) ?

Are the luminance signals outputted to the 
S-OUT terminal (JK1401) ?

Are the chroma signals outputted to the 
S-OUT terminal (JK1401) ?

Are the component video signals outputted to the 
Video OUT terminal (JK1602) ?

Yes

Yes

Yes

No

No

No

No

No

No

IC1402     4 PIN   CVBS
IC1402     6, 12 PIN   S-Y
IC1402     2 PIN   S-C
IC1402   14 PIN   Cb
IC1402   16 PIN   Cr

IC1402   30 PIN    CVBS
IC1402   24, 27 PIN    S-Y
IC1402   33 PIN    S-C
IC1402   21 PIN    Cb
IC1402   18 PIN    Cr