G. TROUBLE SHOOTING OF PAL COLOUR IN THE PLAYBACK MODE.
NG
IS THE SIGNAL FROM PIN 7 OF
CHECK PREAMP CIRCUIT
IY04 FED TO PIN 15 OF IY01 ?
OK
IS THE PAL COLOUR SIGNAL FROM
NG
PIN 7 OF IY04 FED TO PIN 15 OFCHECK AMP CIRCUIT
IY01 THROUGH AMP CIRCUIT ?
THE AMP CIRCUIT CONSIST OF
QCY08, QCY11 AND ADJACENT CIRCUIT.
OK
IS ON/OFF 5V SUPPLIED TO PIN 36NG
CHECK ON/OFF 5V
AND PIN 47 OF IY01 AT 5 VOLTS ?
OK
IS THE PAL COLOUR SIGNAL FROM
NG
PIN 15 OF IY01 FED TO PIN 48 ANDCHECK IY01
PIN 50 OF IY01 ?
OK
IS THE SIGNAL FROM PIN 48 AND
NG
PIN 50 OF IY01 FED TO PIN 3 AND CHECK IY01
PIN 1 OF IY02 RESPECTIVELY ?
OK
IS THE SIGNAL OBTAINED FROMNG
CHECK IY01
PIN 13 OF IY02 ?
OK
IS THE COLOUR SIGNAL FROM PIN
NGCHECK IY01, QCY01,
13 OF IY02 FED TO PIN 45 AND
RCY08, CY18.
THROUGH PIN 52 AND 46 OF IY01 ?
OK
IS COLOUR ROTARY SUPPLY TONG
CHECK COLOUR ROTARY
PIN 66 OF IY01 ?
OK
TO TV PART.
67 |
ACEC
