Adjustment - Pioneer A-207 MLXJ Service Manual

6. ADJUSTMENT

6.1 IDLE CURRENT ADJUSTMENT
¶ CAUTION : Heatsinks' (Q323–Q326) DC level is equal to +B or -B.
Don't touch them or you will be electricary chocked.
1. Connect the measuring instrument as Fig.6-1. (R373 or R374)
2. Turn the POWER switch to ON.
3. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 10mV±1mV.
4. Ages for 5 minutes.
5. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 11mV±1mV.
DC Voltmeter DC Voltmeter
R373
R375
Heat Sink
VR301
Heat Sink
Fig.6-1 Adjustment Method
AF ASSY
SIDE A
Heat Sink
R374
R376
VR302
Heat Sink
CN202
A-207
25