Read Sony XM-1002HX Service Manual online
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SECTION 3
DISASSEMBLY
Note :
Follow the disassembly procedure in the numerical order given.
3-1. BOTTOM PLATE, PANEL (FRONT), PANEL (REAR) REMOVAL
3-2. AMPLIFIER BOARD REMOVAL
SECTION 4
ELECTRICAL ADJUSTMENT
Bias Adjustment
Procedure :
1. Rotare semi-fixed resistors RV104 and RV204 fully counter-
1. Rotare semi-fixed resistors RV104 and RV204 fully counter-
clockwise 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 RV104 (L-CH) and RV204 (R-CH) so that the digital
voltmeter reading becomes the adjustment limits below.
Adjustment Limits : 3 ± 0.3mV
Adjustment Location :
[AMPLIFIER BOARD] (Component side)
– L-CH –
– R-CH –
1
Screws (+BTP 3X5)
4
Screws (+BTP 3X8)
1
Screws
(+BTP 3X5)
2
Bottom plate
8
Screws (+BTP 3X8)
7
Screws (+BTP 3X8)
8
Screws (+BTP 3X8)
7
Screws
(+BTP 3X8)
9
Panel (rear)
6
Panel (front)
Heat sink
5
Screw
3
Auto fuse (30A)
4
Screws
(+BTP 3X8)
1
Screws
(+P 4X10)
2
Screws
(+P 4X10)
3
Amplifier board
Heat sink
digital
voltmeter
digital
voltmeter
TP201
R243
R143
TP202
TP102
TP101
RV204
RV104
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