No Picture - Sanyo PDG-DXL2000 Service Manual

Troubleshooting

No Picture

Check following steps.
No picture with all of in-
put sources
No
No picture with PC1 [An-
alog rGB] input source
only
No
No picture with PC2
[Analog rGB] input
source only
No
No picture with all of
computer input sources
No
No picture with video in-
put sources
Yes
Check signal processing stage and DMD driving stage;
C heck IC401 <DLP Data Processor>, IC2501 <DMD Power&Motor Drive>,
IC3501 <DMD Power&Reset Drive>
cuits.
C heck IC8201 <A/D Converter> and peripheral circuit.
Yes
T he R1_IN, G1_IN, B1_IN, H1_IN,V1_IN signals are applied to pins
11, 2, 18, 81, 78.
C heck IC8201 <A/D Converter> and peripheral circuit.
Yes
T he R2_IN, G2_IN, B2_IN, H2_IN,V2_IN signals are applied to pins
10, 100, 17, 82, 79.
Yes
Check PC/AV source selecting stage and processing stage;
C heck IC8201 <A/D Converter> and IC401 <DLP
and peripheral circuit.
Check AV source selecting and decoding stage;
Check IC8201 <A/D Converter> and IC401 <DLP
peripheral circuit.
S-Video source
Check S-video signal (Y/C).
S C_IN signal is applied to pin 9 of IC8201, and SY_IN signal is applied on pin
98 of IC8201.
Composite video source
Check composite video signal (Video).
T he CVBS signal is applied to pin 16 of IC8201.
The SCART_CV signal is applied to pin 97 of IC8201.
or DMD module and peripheral cir-
-40-
Processor>
Data
Processor> and
Data