Sony WRR-862A, Service Manual, Page: 17 / 96

3-3
WRR-862A/862B
2. Adjustment Location
.
Remove the case (upper).
.
Remove the case (upper) and partition.
3-2-1. Current Consumption Check
Equipment and Tools
DC power supply
DC output voltage :
+
1.5 Vdc
±
0.1 V
DC ammeter
DC volt meter (or Digital multimeter)
Connector 4P (Part No. 1-566-425-11)
Switch and Control Setting
Same as “1. Switch and Control Initial Setting” on page 3-2.
Procedure
(1) Remove the case (upper) from the WRR-862A/862B
unit. (For removal, refer to the Section 2.)
(2) Current Consumption Check during Battery Operation
1. Connect a DC power supply (
+
6 Vdc
±
0.1 V) as
shown in the figure below.
2. Check the level on the DC ammeter.
DC ammeter indication level
(under no-RF signal input and SQUELCH
OFF mode) : 220 mA or less
(3) Current Consumption Check during External Power
Supply Operation
1. Connect a DC power supply (
+
12 Vdc
±
0.1 V) as
shown in the figure below.
2. Check the level on the DC ammeter.
DC ammeter indication level
(under no-RF signal input and SQUELCH
OFF mode) : 125 mA or less
1
1
ANT a
SQUELCH
(S1602)
LCD
(Tuner 1)
CONTROL
(S1601)
POWER
(S1701)
OUTPUT1
(BAL)
OUTPUT2
(BAL)
MONITOR
ANT b
MONITOR
(S1201)
LCD
(Tuner 2)
CL1351
RV1211
CT1401
AU-276/285 board
(B side)
1
1
1 1 1 1
RX-60/74 board (B side)
RV601
RV611
RV701
RV711
1
1
4
3
1
2
Pin No.4
DC power
supply
DC
ammeter
Pin No.1
To DC
POWER
SUPPLY
( + )
+ 12.0 ± 0.1V
( _ )
4P connector
Bottom View
+
_
+ _
+
_
DC 12V IN
1
1
DC
ammeter
DC power
supply
_ +
_ +
+
_
+
6.0
±
0.1V