-23-
IC801
52
Fan Fail Detect ( To IC1821 37 )
FAN FAIL
55
Sound AMP Fail Detect ( To IC071 17 )
P FAIL 2
56
Power Fail Detect
(SUB CPU)
Not used in this model.
P FAIL 3
54
Power Fail Detect
(Main)
P FAIL 1
D102
5VANA
D7082/3
2.5VGR
(SUB CPU)
Q831/2
(SUB CPU)
D601/2
2.5VFPGA
D603/4
78
Temperature Fail Detect ( To IC1821 38 )
TEM. FAIL
D301/2
3.3VPIX
D7080/1
3.3VYC
3.3VAD
2.5VPIX
D201/2
■
Power Fail Circuit
CPU (IC801) is programmed that the set goes to standby mode when there is circuit fail as
below.
1. AUDIO AMP FAIL(2) : Detected the fail of Audio AMP IC (IC071)
2. POWER FAIL (3)
: Detected the voltage fail in SUB CPU Unit
( Not used in this model.)
3. POWER FAIL (1)
: Detected the voltage fail in SUB CPU Unit (1 point) and Main Unit (6 points).
4. OTHERS
TEMPERATURE FAIL : Detected the temperature fail ( about 80 degree) by thermal sensor IC (IC1981). CPU
communicates to FAN & Sensor Control IC (IC1821) for detection.
FAN FAIL
: Detected the fan fail by the communication to FAN & Sensor Control IC (IC1821).
(The set does not go to standby mode in this fail. Display Only.)
Summary of Contents for PDP-42H1A
Page 31: ... 31 Main Scaler IC301 PW365 IC Block Diagrams Sync Separation IC8971 LA7217 T TRM ...
Page 32: ... 32 Sync Separation IC1201 BA7078AF IC Block Diagrams RGB Component Switch IC1123 24 BA7657F ...
Page 33: ... 33 Audio Video Switch IC1001 CXA1845Q IC Block Diagrams ...
Page 34: ... 34 Audio Control IC001 CXA2013N Q Sound IC002 MM1369BD IC Block Diagrams ...
Page 35: ... 35 BBE IC121 NJM2155M IC Block Diagrams Digital AMP IC071 TA1101B ...
Page 62: ... Memo ...
Page 63: ... Memo ...
Page 64: ...FEB 2002 335 Printed in Japan SANYO Electric Co Ltd ...