Sanyo PLC-XP21N Service page 26

ASS'YAV ASS'YV)DEO
1. Check that the Vcc-vottages are correct.
(IC5261. IC5201, etc)
2. Check the input and output signais at IC5201.
3. Check the input and output signa!s at IC5261.
4. Check the input and output signals at IC6201.
5. Cheek the input and output signals at IC7201/7221/7222.
6. Check the output signafs at KlOQ.
1. Cheek that the Vee-voItages(5V, 9V) are correct.
2. Check the signats at TP2101. (Composite-video)
3. Check that the S-SW signa! is correct.
Composite-video^ / S-video=L
4. Check that the COMP-SW signat is correct-
Composite and S-Vidco=H / Component-video^
5. Check that the NTSC/PAL-SW signal is correct.
NTSC=H/PAL=L
6. Check the input and output signals at IC111-
7. Check the H-SYNC signal. (Pin2 of K20J)
Check the V-SYNC signal. (Pin3ofK20J)