Pioneer KRL-46V Service Manual page 46

1
A
Does not the picture of the R/G/B video signal input to INPUT1 go out?
Does not the picture of the R/G/B video signal input to INPUT2 go out?
TERMINAL UNIT:
<INPUT1>
Is RGB1 signal sent to pins (15)/R1, (11)/G1 and (7)/B1 of
SCART1 (SC502)?
<INPUT2>
Is RGB2 signal sent to pins (15)/R2, (11)/G2 and (7)/B2 of
SCART2 (SC503)?
B
<INPUT1>
Is RGB1 signal sent to pins (25)/R1, (21)/G1 and (23)/B1 of
IC506?
<INPUT2>
Is RGB2 signal sent to pins (31)/R2, (27)/G2 and (29)/B2 of
IC506?
Is RGB signal output from pin (54), (56), and (55) of IC506 to pin
(12), (14), and (16) of connector (SC501)?
C
MAIN UNIT:
Is RGB signal sent to pins (12), (14), (16) of connector
(SC1101)?
Is RGB signal sent to pins (Y8), (V6), (W9) of IC3301
(VIDEO_PROCESSOR)?
Refer to "The picture doesn't appear in all modes."
D
E
F
46
1
2
<External input INPUT1, INPUT2> No picture on the display (5)
YES
YES
YES
YES
YES
2
3
NO Check the setting of an external input device that connects of
SC502.
NO Check the setting of an external input device that connects of
SC503.
NO Check the line between SC502 and IC506.
NO Check the line between SC503 and IC506.
NO Check the line between IC506 and SC501.
NO Check the connector (SC501/SC1101)
NO Check the line between SC1101 and IC3301.
(Q1104, Q1105, Q1106, etc.)
KRL-46V
3
4
4