GX-CD1200W
– 7 –
ADJUSTMENT
Specified Value
MECHANISM SECTION
• Driving Force Check
Specified Value
• Torque Check
Play: TW-2111 30 to 70 g.cm 27 to 60 g.cm
Fast Forward: TW-2231 Over 55 g.cm 55 to 120 g.cm
Rewind: TW-2231 Over 55 g.cm 55 to 120 g.cm
• Head Azimuth
MTT-114 Headphones Socket
(Load resistance: 32 ohms)
Instrument Connection
• Tape Speed (Normal only)
Instrument
Connection
MTT-111 Tape 1,2:VR102 3,000 ± 60 Hz Headphones
Socket
(Load resistance:
32 ohms)
Torque Meter
Torque Meter
Test Tape
Test Tape
• Playback Amplifier Sensitivity Check
Play: TW-2412 Tape 1: Over 60 g
Tape 2: Over 50 g
Tape 1 Tape 2
Adjustment
Point
Specified
Value
Specified value Instrument Connection
MTT-118 2.5 V ± 3 dB Speaker terminal
(Load resistance: 8 ohms)
Test tape
Figure 7 VCO FREQUENCY TEST CIRCUIT
TUNER SECTION
fL: Low-range frequency
fH: High-range frequency
Specified value Instrument Connection
VR1 76 kHz ± 200 Hz Pin 13, Pin 21 and ground
of IC2
Adjustment
Point
• VCO Frequency
Note:
After preparing the test circuit shown in Fig. 7, connect the Pin
13, Pin 21 and ground of the IC2 with the test circuit, and
measure the value.
• FM IF/RF
Specified Value/
Adjusting
Point
Test Stage
FM IF L9 Input: FM Antenna
FM Detection L10 Output:Pin 9 of IC2
FM Band fL: L1 Input: Antenna
Coverage fH: TC1 Output: Headphone Socket
FM Tracking fL(88.0 MHz): L2 (Load resistance:
fH(108 MHz): TC2 32 ohms)
Instrument
Connection
• AM IF/RF
Test Stage
Specified Value/
Adjusting
Point
Instrument
Connection
AM IF L11
MW Band fL: L6
Coverage fH: TC3
MW Tracking fL(600 kHz): L3
fH(1,400 kHz):TC4
SW1 Band fL(2.3 MHz): L7
Coverage fH(7.3 MHz): TC5
SW1 fL(2.6 MHz): L4
Tracking fH(6 MHz): TC6
SW2 Band fL(7.3 MHz): L8
Coverage fH(22 MHz): TC7
SW2 fL(8.5 MHz): L5
Tracking fH(19 MHz): TC8
Input: Antenna
Output: Pin 9 of IC2
Input: Antenna
Output: Headphone Socket
(Load resistance:
32 ohms)
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