Adjustment Method; Test Instruments Required For Adjustment; Standard Measuring Conditions; Dummy Load - JVC KD-SV3000 Service Manual

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.
Heat sink
(Attach the heat sink
using the two screws.)
1-24 (No.49837)
SECTION 3
Adjustment
CN501

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)

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.
Extension cable
EXTSH002-22P
Rear bracket
(Attach the rear bracket
using the screw.)