Sanyo DP23625 Service Manual page 38

TROUBLE SHOOTING FLOW CHARTS (CONT.)
NO VIDEO
All Modes?
Yes
No
RF(TV) only
AV1 only
AV2 only
RF, AV1 only
AV3 only
Caption, OSD only
Check:
Line:
IC1202 7pin - IC2001 81pin (CV),78pin(Y)
IC2001 68pin - IC7201 62pin (HD)
IC2001 70pin - IC7201 61pin (HD)
IC2001 - IC7201 (Y/C)
IC7201 - LCD Panel (RGB)
Parts: Around
IC7201 (IP Converter), IC1202 (Video SW),
IC2001 (Digital Decoder), Panel, Inverter
Check:
Line:
IC1202 1pin (CV)
Check:
Line:
IC1202 3pin (Y)
IC2001 94pin (Cr)
IC2001 88pin (Cb)
— 38 —
Check:
Line: A101 17pin - IC1201 5pin
Parts: Around A101 (TU_IF), Q101
Check:
Line:
IC1201 1pin (Composite Video: CV)
IC1201 3pin (S-Input: Y)
IC2001 90pin (S-Input: C)
Check:
Line: IC1201 7pin - IC1202 5pin
Parts: Around IC1201 (Video SW)
Check:
Line:
IC1202 7pin - IC801 36, 37pin (Y/CV)
IC7201 99pin - IC1831 11pin (VD)
IC1831 10pin - IC801 23pin (VD)
IC1201 154pin - IC1831 13pin (HD)
IC1831 12pin - IC801 22pin (HD)
IC801 21pin - IC1732 5pin (OSD Y)
IC1732 3pin - IC7201 96pin (OSD Y)
IC801 20pin - IC1732 2pin (OSD B)
IC1732 6pin - IC7201 85pin (OSD B)
IC801 19pin - IC1733 5pin(OSD G)
IC1733 3pin - IC7201 84pin (OSD G)
IC801 18pin - IC1733 2pin(OSD R)
IC1733 6pin - IC7201 83pin (OSD R)
Parts: Around
IC1831/7232/7233 (DD Converter),
IC801 (CPU), IC7201 (IP Converter)