Sanyo HT28745 Service Manual page 53

NO PICTURE
All Modes?
Yes
No
RF(TV) only
AV1 only
AV2
(Composite or S)
RF(TV), AV1,
AV2
(Composite or S)
AV2
(Component)
AV3 only
AV2
(Component)
Digital Input only
Check:
Parts: Around Digital Module
Caption, OSD only
Check:
Line:
Digital Module - IC2501 54pin (YP)
Digital Module - IC2501 52pin (UP)
Digital Module - IC2501 53pin (VP)
Digital Module - IC2301 4-12pin - IC2501 18pin (2HS)
Digital Module - IC2301 9-7pin - IC2501 23pin (VS)
IC2501 34pin - Q2503 - Q711 - IC711 3-8pin - CRT (R-Cathode)
IC2501 32pin - Q2502 - Q721 - IC721 3-8pin - CRT (G-Cathode)
IC2501 30pin - Q2501 - Q731 - IC731 3-8pin - CRT (B-Cathode)
IC711/721/731 7pin - Q2504 - IC2501 27pin (IK)
IC2501 16/1/64/3/14pin - Power Deflection Circuit (H,V Drive, PCC, AFC)
Parts: Around
Digital Module, IC2501 (Video Processor), IC711, IC721, IC731 (CRT Drive),
IC2301, CRT, Q2501, Q2502, Q2503, Q711,Q721, Q731, T402 (FBT, Screen VR)
Check:
Line:
IC1201 1pin (CV)
IC1201 3pin (Y)
IC1201 5pin (C)
only
Check:
Line:
IC1201 34pin - Q1234 - Digital Module (CV)
IC1201 37pin - Q1237 - Digital Module (Y)
IC1201 39pin - Q1241 - Digital Module (C)
Parts: Around
IC1201 (AV Selector),Q1234, Q1237, Q1241
only
Check:
Line:
IC2801 25pin (Y for Sync.)
Q2906 - IC1263 5pin (Y)
Q2904 - IC1262 5pin (U)
Q2902 - IC1261 5pin (V)
Parts: Q2906, Q2904, Q2902
Check:
, AV3
Line:
IC1263 7pin - Q1293 - Digital Module (Y)
IC1262 7pin - Q1295 - Digital Module (U)
IC1261 7pin - Q1297 - Digital Module (V)
IC2801 28pin - Q2910 - Digital Module (VS)
IC2801 16pin - Q2903 - Digital Module (HS)
Parts: Around
IC1263/2/1 (Y/U/V SW), IC2801 (Sync. Sep.),
Q1293, Q1295, Q1297, Q2910, Q2903
Check:
Line:
IC1201 23pin - Q1229 - IC801 26pin (Y/CV)
IC1851 3-4pin - IC801 37pin (VS)
IC1851 5-6pin - IC801 38pin (HS)
IC801 34pin - IC2501 39pin (OSD R)
IC801 35pin - IC2501 38pin (OSD G)
IC801 36pin - IC2501 37pin (OSD B)
Parts: Around IC801 (CPU), Q1229
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Check:
Line: A101 17pin - IC1201 41pin
Parts: Around A101 (TU_IF)
Check:
Line:
IC1201 7pin (CV)
IC1201 9pin (Y)
IC1201 11pin (C)
Check:
Line:
IC2801 24pin (Y for Sync.)
Q2950 - IC1263 3pin (Y)
Q2943 - IC1262 3pin (U)
Q2942 - IC1261 3pin (V)
Parts: Q2950, Q2943, Q2942