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3 7 63 1515 0
[FM Auto Stop Check]
SET
Procedure :
1. Turn the power on.
2. Input the following signal from Signal Generator to FM an-
tenna 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. Confi rm that input Frequency of A, B and C detected and auto-
matic scanning stops.
TE
L 13942296513
The stop of automatic scanning means "The station signal is re-
ceived in good condition".
www
.
http://www.xiaoyu163.com
generator
+
75 Ω
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http://www.xiaoyu163.com
2 9
8
Adjustment Location and Connecting Points:
– MAIN Board (Component Side) –
L804
AM Tracking
Adjustment
– MAIN Board (Conductor Side) –
3
CN801
ANTENNA
1
36
IC801
1
Q Q
3
6 7
1 3
1 5
IC801 pin
(TUNER OUT L-ch)
co
.
HCD-EC68/EC78
9 4
2 8
L801
FM Frequency
Coverage Adjustment
L802
FM Detector
Adjustment
L803
FM Frequency
Coverage Adjustment
L805
AM Tracking
Adjustment
IC801 pin
(TUNER VT)
19
18
0 5
8
2 9
9 4
2 8
JW801
(TUNER-GND)
m
9 9
9 9
21
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