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3.1
Adjustment method
Test instruments required for adjustment
(1) Digital oscilloscope (100MHz)
(2) AM Standard signal generator
(3) FM Standard signal generator
(4) Stereo modulator
(5) Electric voltmeter
(6) Digital tester
(7) Tracking offset meter
(8) Test Disc JVC :CTS-1000
(9) Extension cable for check
EXTSH002-22P × 1
Standard volume position
Balance and Bass &Treble volume : lndication"0"
Loudness : OFF
How to connect the extension cable for adjusting
Caution:
Be sure to attach the heat sink and rear bracket onto the power amplifier IC and regulator IC respectively, before supply the power.
If voltage is applied without attaching these parts, the power amplifier IC and regulator IC will be destroyed by heat.
TE
L 13942296513
The cardboard is cut in a suitable size.
uses for the insulation stand of mechanism.
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1-28 (No.49831)
http://www.xiaoyu163.com
SECTION 3
Adjustment
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Standard measuring conditions
Power supply voltage
DC14.4V (11 to 16V)
Load impedance
20KΩ (2 Speakers connection)
Output Level
Line out 2.0V (Vol. MAX)
Frequency Band
FM1
87.5MHz to 107.9MHz
(with channel interval set to 200kHz)
87.5MHz to 108.0MHz
(with channel interval set to 50kHz)
AM
530MHz to 1710MHz
(with channel interval set to 10kHz)
531MHz to 1602MHz
(with channel interval set to 9kHz)
Dummy load
Exclusive dummy load should be used for AM,and FM. For FM
dummy load,there is a loss of 6dB between SSG output and
antenna input.The loss of 6dB need not be considered since
direct reading of figures are applied in this working standard.
Q Q
3
6 7
1 3
1 5
EXTSH002-22P
co
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9 4
2 8
0 5
8
2 9
9 4
2 8
Extension cable
m
9 9
9 9
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