Sony WRR-862A Service Manual page 19

Switch and Control Setting
Same as "1. Switch and Control Initial Setting" on page 3-2.
Procedure
(1) Connect the audio analyzer to the OUTPUT 1 connec-
tor via MIC amp.
(2) Connect the signal generator to the ANT a connector.
Signal generator setting
FREQUENCY (Carrier frequency)
CE21 model : 482.000MHz
CE33 model : 578.000 MHz
CE62 model : 810.000 MHz
CE67 model : 850.000 MHz
U1416 model : 482.125 MHz
U3032 model : 578.125 MHz
U4244 model : 650.125 MHz
U6264 model : 770.125 MHz
U6668 model : 794.125 MHz
AU66 model : 799.250 MHz
RF OUTPUT (Output level) : 60 dBuV
MODULATION (Modulation frequency) : 1 kHz
DEVIATION (Frequency deviation) : ± 5 kHz
(3) Adjustment
Specification : OUTPUT connector output level
(level meter indication level)
=_58.0 dBm ± 0.5 dB (at 600 Z loaded)
Adjustment : 1RV601/RX-60/74 board (B side)
(4) Connect the signal generator to the ANT b connector.
(5) Adjustment
Specification : OUTPUT connector output level
(level meter indication level)
=_58.0 dBm ± 0.5 dB (at 600 Z loaded)
Adjustment : 1RV611/RX-60/74 board (B side)
(6) Connect the signal generator to the OUTPUT 2 connector.
(7) Adjustment
Specification : OUTPUT connector output level
(level meter indication level)
=_58.0 dBm ± 0.5 dB (at 600 Z loaded)
Adjustment : 1RV711/RX-60/74 board (B side)
(8) Connect the signal generator to the ANT a connector.
(3) Adjustment
Specification : OUTPUT connector output level
(level meter indication level)
=_58.0 dBm ± 0.5 dB (at 600 Z loaded)
Adjustment : 1RV701/RX-60/74 board (B side)
WRR-862A/862B
3-2-4. RF Squelch Level and RF Level
n
Perform this adjustment/check with the case (upper) , parti-
tion and battery case installed.
(Do under the regular use condition).
Perform this adjustment when the Muting levels deviate
from the specification.
This adjustment is performed automatically by the learning
function of the WRR-862A/862B RSSI learning.
Equipment and Tools
DC power supply: +12.0 Vdc ± 0.1 V
Signal generator
Connector 4P (Part No. 1-566-425-11)
Connection
(=_53 dBm)
EMF
DC power supply DC ammeter
To DC
POWER
SUPPLY
Switch and Control Setting
Same as "1. Switch and Control Initial Setting" on page 3-2.
Procedure
Step 1. Tuner 1 Adjustment
(1) Connect the signal generator to the ANT a connector.
(2) Turn OFF the WRR-862A/862B POWER switch (S501).
(3) Set the CONTROL switch (S1601) to "1".
Indicator Adjustment
Signal
generator
ANT a
+ _
+
_
+12.0 ± 0.1V
+
_
DC 12V IN
4P connector
Pin No.4
4
3
(+)
Pin No.1
Bottom View
(_)
ANT b
1
2
3-5