23
LC-20SH1M
LC-20SH1X
TROUBLE SHOOTING TABLE
(Continued)
No
Yes
No Picture (2/3)
Check all the settings microprocessor's adjust process menu
No INPUT1 Output (COMPONENT)
Check IC501 and
its peripheral parts.
Is input at pins (3),
(6 ) and (10) of
IC850 normal?
Check Y, Pr, Pb
lines and its
peripheral parts.
No TELETEXT
output
Check IC501 and
its peripheral parts.
No
No
No
Yes
Yes
No
No
Yes
No
Is output of U/D normal?
No Picture (3/3)
Check all the settings microprocessor's adjust process menu
Colour is unusual
Gradation defect
Is output R0-R7 at
SC1202 normal
Is output G0-G7 at
SC1202 normal
Is output B0-B7 at
SC1202 normal
Check R1205 and its
peripheral parts.
Check R1206 and its
peripheral parts.
Check R1207 and its
peripheral parts.
No picture image
inversion
Is input/output of
SPIO and SPOI
normal?
Check R1216 its
peripheral parts.
Check R1210 and its
peripheral parts.
Is output V0, V7, V21,
V64, V112, V176, V235
and V255 normal?
Check IC1101 and its
peripheral parts.
Summary of Contents for LC-20SH1M
Page 31: ...31 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X SCHEMATIC DIAGRAM Ë INVERTER Unit ...
Page 32: ...32 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X Ë SUB Unit 1 4 ...
Page 33: ...33 17 16 19 18 15 14 13 12 11 10 LC 20SH1M LC 20SH1X ...
Page 34: ...34 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X Ë SUB Unit 2 4 ...
Page 35: ...35 17 16 19 18 15 14 13 12 11 10 LC 20SH1M LC 20SH1X Note SUB 3 does not use it ...
Page 36: ...36 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X Ë SUB Unit 4 4 ...
Page 37: ...37 17 16 19 18 15 14 13 12 11 10 LC 20SH1M LC 20SH1X ...
Page 38: ...38 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X Ë MAIN Unit 1 3 ...
Page 39: ...39 17 16 19 18 15 14 13 12 11 10 LC 20SH1M LC 20SH1X ...
Page 40: ...40 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X Ë MAIN Unit 2 3 ...
Page 41: ...41 17 16 19 18 15 14 13 12 11 10 LC 20SH1M LC 20SH1X ...
Page 42: ...42 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X Ë MAIN Unit 3 3 ...
Page 43: ...43 17 16 19 18 15 14 13 12 11 10 LC 20SH1M LC 20SH1X ...
Page 44: ...44 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X Ë OPERATION Unit ...
Page 45: ...45 6 5 4 3 2 1 A B C D E F G H LC 20SH1M LC 20SH1X Ë R C LED Unit ...
Page 59: ...59 17 16 19 18 15 14 13 12 11 10 LC 20SH1M LC 20SH1X ...
Page 73: ...73 LC 20SH1M LC 20SH1X PACKING OF THE SET S4 S2 X4 X5 X6 X3 X1 X2 S3 S5 S3 S1 R L ...
