Sony STR-DA3200ES - Electrical Adjustments; Bias Alignment Adjustment Procedure

27
STR-DA3200ES/DG1000
SECTION 5
ELECTRICAL ADJUSTMENTS
BIAS ALIGNMENT ADJUSTMENT
Note: Afer 10 minutes or more have passed since the power supply was
turned on, this adjustment is done.
Connection
Procedure:
1. Connect a digital voltmeter to the CNP1502 (CNP1552,
CNP1602, CNP1702, CNP1752, CNP1802, CNP1852) on the
BIAS board.
2. Press the [POWER] button to turn on the main power.
3. Adjust the RV1501 (RV1551, RV1601, RV1701, RV1751,
RV1801, RV1851) so that the digital voltmeter reading is 4 mV
to 20 mV.
Adjustment and Connection Location:
+
–
digital voltmeter
CNP1502 (CNP1552, CNP1602, CNP1702, CNP1752, CNP1802, CNP1852) pin
1
CNP1502 (CNP1552, CNP1602, CNP1702, CNP1752, CNP1802, CNP1852) pin 2
CNP1752
RV1751
1
2
– BIAS Board (Component Side) –
1
2
1
2
1
2
1
2
1
2
1
2
RV1701
CNP1702
RV1551 RV1501 RV1601
CNP1502CNP1552 CNP1602 CNP1852 CNP1802
RV1851 RV1801