Electrical Adjustments - Sony STR-DA3200ES Service Manual

BIAS ALIGNMENT ADJUSTMENT
Note: Afer 10 minutes or more have passed since the power supply was
turned on, this adjustment is done.
Connection
CNP1502 (CNP1552, CNP1602, CNP1702, CNP1752, CNP1802, CNP1852) pin 1
CNP1502 (CNP1552, CNP1602, CNP1702, CNP1752, CNP1802, CNP1852) pin 2
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:
– BIAS Board (Component Side) –
CNP1752
RV1751
2 1
SECTION 5

ELECTRICAL ADJUSTMENTS

CNP1702 CNP1552
2 1 2 1
RV1701 RV1551
STR-DA3200ES/DG1000
digital voltmeter
+
–
CNP1502 CNP1602
2 1 2 1
RV1501 RV1601
CNP1852 CNP1802
2 1 2 1
RV1851 RV1801
27