Electrical Adjustments - Sony STR-DA3000ES Service Manual

DC OFFSET ADJUSTMENT
Condition:
function: MULTI CH 2
input signal: no signal (no load)
volume: 0 dB
Connection
TM1710 (TM1730, 1740, 1750, 1760, 1770) 3 pin,
CN919 pin 1 (US, Canadian models) or
C941 3 pin (except US, Canadian models)
TM1710 (TM1730, 1740, 1750, 1760, 1770) # pin,
Procedure:
1. Connect a digital voltmeter to the TM1710 (TM1730, 1740,
1750, 1760, 1770) on the D-AMP board, CN919 (US, Canadian
models) and C941 (except US, Canadian models) on the REG
board.
2. Press the button to turn on the main power.
I/1
3. Adjust the RV111 (141, 161, 181, 211, 241, 261, 281) so that
the digital voltmeter reading is ±20 mV. (Only adjustment use
RV261, digital voltmeter reading is
Adjustment and Connection Location: see page 16
SECTION 5

ELECTRICAL ADJUSTMENTS

digital voltmeter
+
–
CN919 pin 2
+40 mV)
–0
STR-DA3000ES
15