Adjustment Method - JVC KD-S871R Service Manual

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KD-S871R

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
EXTGS004-26P 1
Standard measuring conditions
Power supply voltage
Load impedance
Output Level
Line out 2.0V / 20 k (full scale)
How to connect the extension cable for adjusting
1-12
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DC14.4V(11V to 16V allowance)
4
(4 to 8
allowance)
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Standard volume position
Balance and Bass &Treble volume : lndication"0"
Loudness : OFF
BBE
: OFF
Frequency Band
FM 87.5MHz ~ 108.0MHz
MW 522kHz ~ 1620 kHz
LW 144kHz ~ 279kHz
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.
Doing such as cardboard puts finishing
between the main body and mechanism.
EXTGS004-26P

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