2. PIF CIRCUIT
A. TROUBLESHOOTING OF RF RECEIVING CIRCUIT (FOR TMI APPLIED SYSTEM)
Is Video Signal at Video Out point, Pin No. 24 of TMI Block? YES Is Audio signal at Audio Out point, Pin No. 21 of TMI Block? YES Is +5V supplied to BB point, Pin No. 1 of TMI Block? YES Is +9V supplied to B+ point, Pin No. 13 & 14 of TMI Block? YES Is SCL & SDA normally applied ? YES Change the TMI Block.
NO
Check the A/V Switching and Video Circduit. (In case of 2 SCART System)
NO
Check the video Circuit. (In case of 1 SCART System)
NO
Check the Power Supply Circuit.
NO
Check Q001,Q002, Q003, D003 and Power Supply Circuit.
