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(22) Set the FREQUENCY (carrier frequency) of the
signal generator as follows;
FREQUENCY (carrier frequency)
U64 model; 780.000 MHz
U66 model; 792.000 MHz
U68 model; 804.000 MHz
(23)Check first that indication "L" of "BC3L" on the LCD
has disappeared, and then press the S708 switch on the
RF-92 board (tuner unit).
(24)Indication on the LCD appears as follows:
LCD:
• U64 model
U64
• U66 model
U66
• U68 model
U68
Adjustment is completed. (Normal operation mode)
WRR-802A (U)
(U64)
(U66)
(U68)
2. Output level adjustment
Perform this adjustment when the TUNER OUTPUT
levels deviate from the specification.
Preparation
Before the adjustments, turn off the POWER switch of the
WRR-802A, and perform the followings.
1. Remove the case cover of the WRR-802A.
2. Remove the tuner unit from the WRR-802A.
3. Remove the upper side case lid of the tuner unit, and
insert the tuner unit to the slot of the WRR-802A.
Equipment and Tools
. DC power supply: +9 Vdc
. Audio analyzer (level meter, distortion meter)
. Mic amp (Noise meter)
. Oscilloscope
. Adjuster (0.4 x 1.3 mm): (Part No. 7-221-652-81)
Connection/Adjustment Location
Oscilloscope
MIC amp
600 Z
balance
input
Audio analyzer
DC power supply
TUNER OUTPUT
DC IN 9 V
+9 Vdc
Signal
generator
ANTENNA
A IN
RV202
RV201
Tuner unit
WRR-802A
ANTENNA B IN
3-5
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