Electrical Adjustment; Idling Current Adjustment - Sony XES-M50 Service Manual

IDLING CURRENT ADJUSTMENT

Procedure:
1. Rotate Semi-fixed resistors VR102 and VR202 fully counter-
clockwise as viewed from the solder side.
2. No signal is entered, as input signal.
3. Apply the source voltage 14.4 V between +12 V, REMOTE
and GND terminals.
4. Adjust the VR102 (L-CH) and VR202 (R-CH) so that the digital
voltmeter reading becomes the adjustment limits below.
Adjustment Limits: 5 ± 0.2 mV
Adjustment Location:
[R-CH AMP BOARD]
[L-CH AMP BOARD]
SECTION 3

ELECTRICAL ADJUSTMENT

L-CH
R215
– 11 –
R-CH
VR202
+
R-CH
L-CH
R115
+
VR102
digital
voltmeter
+
–