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-2. AM SECTION
(1) Dummy Antenna Circuit
(2) Connection
+
-
AM Signal Generator
(3) Control Settings
Fader Control ............................ Center Position
Balance Control
........................ Center Position
Treble Control
........................... Center Position
Bass Control
............................. Center Position
(4) Adjustment Procedures
Step
Description
Connection
MW
1
Signal Meter
Figure 4
Adjustment
LW
2
Signal Meter
Figure 4
Adjustment
NOTE : For the Test Points, refer to the Parts Layout on P.W.Boards and Wiring Diagram.
30ohm
15pF
65pF
Input
For 50 ohm AM Signal Generator
Antenna Receptacle
AM Dummy
Antenna
Unit Under Test
Band Switch ..................................... MW/LW
Others .................................................... OFF
Signal Generator
Dial Control
999kHz, 30dBu
999kHz
(Mod. OFF)
216kHz, 30dBu
216kHz
(Mod. OFF)
- 19 -
INA-N333RS/INA-N333RRS
Output
Figure 3
TP503
TP504
GND
* only short-circuit at adjustment
Test Point /
P.W.Board
Coordinates
Auto Adjustment :
TP503
After setting up of Signal Generator,
(3-A)
TP504
short GND and TP504.
(5-E)
(SPEC) TP503 : 1.0±0.1V
Auto Adjustment :
TP503
After setting up of Signal Generator,
(3-A)
TP504
short GND and TP504.
(5-E)
(SPEC) TP503 : 1.0±0.1V
DC Volt Meter
+
-
Figure 4
Adjustment
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