Main Adjustment - JVC PC-X290 Service Manual

Main Adjustments
g g g g Measuring instructions required for
adjustment
1. AM Signal generator
2. FM Signal generator
3. Inter mediate Frequency sweep generator
4. FM stereo signal generator
5. Low-frequency oscillator (oscillation frequency
50 Hz-20 kHz, 0dB output with 600 ohm impedance)
6. Attenuator (600 ohm impedance)
7. Electronic voltmeter
8. Distortion meter
9. Torque gauge (cassette for CTG-N)
10. Wow & flutter meter
11. Frequency counter meter
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Test tape
•
Playback tape
MTT-111NS (tape speed, wow flutter)
MTT-112BN (reference level)
MTT-257C (playback frequency)
MTT-113CN
•
Recording tape
MTT-501
•
Power supply voltage
AC110V-120V 60Hz
g g g g Measuring instruments
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Radio section
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FM 1 kHz, 22.5 kHz deviation
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FM STEREO: 1 kHz, 67.5 kHz deviation
pilot signal 7.5 kHz.
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AM: 1 kHz, 30% modulation
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Reference output:
Speaker output: 0dB (2 V)3.2 ohm
H. Phone output: - 10 dB (0.245V)/32 ohm
•
Amplifier section
◊
Reference output:
Speaker output 0 dB (2 V)/ 3.2 ohm
H. Phone output – 10 dB (0.245V)/32 ohm
•
CD section
◊
Test disc: SONY Yeds 7 Type 3
PHILIPS SBC-444A
A-BEX: TCD-731R
TCD-712R
TCD-785
PC-X290
30/MAR/2004
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