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HCD-EC55/EC77/GX99
Adjustment Location and Connecting Points
– MAIN BOARD (Component Side) –
– MAIN BOARD (Conductor Side) –
JW801
AM Tracking
Adjustment
FM Tracking
Adjustment
FM Frequency
Coverage Adjustment
FM Detector
Adjustment
AM Frequency
Coverage Adjustment
CN801
ANTENNA
CN801
ANTENNA
IC801 pin
wk
(TUNER VT)
IC801 pin
qs
(TUNER OUT L-ch)
TUNER-GND
1
12
18
19
28
36
FM
AM
IC801
FM
AM
1
3
JW801
L805
L804
L803
L802
L801
1
3
[FM Auto Stop Check]
Procedure:
1. Turn the power on.
2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
: 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
Note:
Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and scan the input FM signal with
automatic scanning.
4. Confirm that input Frequency of A, B and C are detected and
automatic scanning stops.
The stop of automatic scanning means “The station signal is received
in good condition.”
generator
SET
+
75
Ω
Содержание HCD-EC55 - Receiver System
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