Panasonic SL-1200MK2 Service Manual - Page 10

TROUBLE SHOOTING Power switch doesn't operate (B) I It doesn't rotate Start/Stop switch "push" Runaway operation Turntable rotates abnormally Speed changeover is defective (F) Strobe not illuminating Power circuity check " TP5 - 20V Reference voltage circuity check " TP5-20V YES Control circuity check " Check voltage and wave form at IC201 Drive circuity check " Check voltage and wave form at IC101 YES heck voltage on Q201 " Base voltage - 10V Reference voltage circuity check " TP5- 20V YES Control circuity check " Check voltage and wave form at IC201 Drive circuity check " Check voltage and wave form at IC101 YES FG circuity check " Check voltage on Q203 Control circuity check " Check voltage and wave form at I C201 Pitch control circuity check Check voltage and wave form at IC301, IC302 Speed select circuity check " TP13 -3 .4V " TP14-0V Check voltage at TP28 and TP29 " TP28 - 18AV " TP29 - 9.6V NO NO NO NO NO NO NO NO NO NO NO NO F1, S601, T1 D1, 61.1 -Q3 IC201 X201 Q201 Q1 -Q3 D2 IC201 Q203, FG coil X201 I C201 IC301 IC302 IC201 S 201, S 202 13201, 13202 Q202 13203-. .13206