Service manual

- 2-9 -
Rec check (Q252, Q202 ON : R273, R223 High)
IC202 11,14PIN signal input check
IC202 9,16 Pin signal input check
IC201 6(12V), 4 Pin High check
L203 2,3PIN oscilation check
Deck replacement
Q253, Q203 Base "Low" check
Q253,Q203 replacement
Refer to IC203 Troubleshooting
IC202 18Pin VCC voltage check
Power check, IC203 Troubleshooting check
C236(+) power supply check
Refer to power supply check
IC203 Troubleshooting check
Q208 replacement
L203 replacement
Q208 Base 0.6V supplied check
Q208 Collector Low
Q207 replace
normal
Dubbing check ("NORMAL or REC"//"HIGH")
Q252, 202 "OFF"//"ON" : R273,223 "Low"//"HIGH"
Q253,203 "ON"//"OFF"
Refer to REC Check
IC203 Troubleshooting check
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES