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NO VIDEO
All Inputs?
Yes
No
RF(TV) only
AV1 only
AV2 only
Component
(480p,720p,1080i)
Composite
Component (480i)
AV3 only
Check:
Line: DVI Terminal - IC4001 (RX)
RF, AV1, AV2
RF, AV1
Check:
Line: IC1201 7pin - IC1202 5pin
Parts: Around IC1201 (Video SW)
AV2
(480p/720p/1080i)
Caption, OSD only
Check:
Line:
IC7201 - LCD Panel (RGB)
IC801 42pin (B-LIGHT)
IC801 43pin (B-LEVEL)
Parts: Around
IC7201 (IP Converter),
LCD Panel, Inverter Board,
Wire (K7H: To LCD Panel),
Q1610/Q1606 (Load SW),
Q7551/Q7552 (Panel SW)
Check:
Line:
IC1201 1pin (Composite Video: CV)
IC1201 3pin (S-Input: Y)
IC2001 86pin - Q2121 - Q2122 (S-Input: C)
Check:
Line:
Q4011 - IC4006 26pin (Y)
Q4009 - Q4005 - IC4001 74pin (Y)
Q4008 - Q4004 - IC4001 79pin (Cr)
or
Q4010 - Q4006 - IC4001 68pin (Cb)
Parts: Around
IC4006 (Sync SEP.), Q4004-6, Q4008-11
(480i)
Check:
Line:
Q2141 - Q2142 - IC1242 7pin - IC2001 78pin (Y)
Q2101 - Q2102 - IC1202 7pin - IC2001 81pin (CV)
Parts: Around
IC1202 (Video SW), Q2101-02, Q2141-42
IC2001 (Video Decoder)
, AV3
— 47 —
Check:
Line: A101 17pin - IC1201 5pin
Parts: Around A101 (TU_IF), Q101
Check:
Line:
IC1202 3pin (CV/Y)
Q2181 - Q2092 - IC2001 94pin (Cr)
Q2161 - Q2072 - IC2001 88pin (Cb)
Check:
Parts: Around
IC4001 (AD Converter)
Check:
Line:
IC1202 7pin - IC801 36, 37pin (Y/CV)
IC7201 99pin - IC1831 11pin (VD)
IC1831 10pin - IC801 23pin (VD)
IC7201 98pin - 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)
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