Read Sony XM-3546 Service Manual online
– 4 –
SECTION 2
ELECTRICAL ADJUSTMENT
BIAS Adjustment
Procedure :
1. Rotare Semi-fixed resistors VR101, VR201, VR301 and VR401
1. Rotare Semi-fixed resistors VR101, VR201, VR301 and VR401
fully counterclockwise as viewed from the component side.
2. No signal is entered, as input signal.
3. Apply the source voltage 14.4V between +12V, REMOTE and
3. Apply the source voltage 14.4V between +12V, REMOTE and
GND terminals.
4. Adjust the VR101 (A-CH), VR201 (B-CH), VR301 (C-CH) and
VR401 (D-CH) so that the digital voltmeter reading becomes the
adjustment limits below.
adjustment limits below.
Adjustment Limits : 1.5
±
0.5mV
Adjustment Location :
VR201
VR401
VR301
JW82
JW117
TP2
TP3
TP4
R219
R419
R319
VR101
TP1
R119
JW157
JW82
+
–
digital
voltmeter
B-CH
A-CH
C-CH
D-CH
+
–
digital
voltmeter
[MAIN AMP BOARD] (Component side)
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