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4.1
Adjustment method
Test instruments required for adjustment
(1) Digital oscilloscope (100MHz)
(2) Electric voltmeter
(3) Digital tester
(4) Tracking offset meter
(5) Test Disc JVC: CTS-1000
(6) Extension cable for check
EXTSH002-22P × 1
Standard volume position
Balance and Bass & Treble volume: Indication "0"
Loudness: OFF
How to connect the extension cable for adjustment
CAUTION:
Be sure to attach the heat sink and rear bracket onto the power amplifier and regulator respectively, before supply the power.
If voltage is applied without attaching those parts, the power amplifier IC and regulator IC will be destroyed by heat.
SECTION 4
ADJUSTMENT
Extension cable
EXTSH002-22P
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.
Standard measuring conditions
Power supply voltage: DC14.4V(10.5 - 16V)
Load impedance: 20KΩ(2 Speakers connection)
Output Level: Line out 2.0V (Vol. MAX)
(No.MA319)1-9
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