– 9 –
XL-40H/50H
MECHANISM SECTION
• Driving Force Check
Torque Meter
Specified Value
Play: TW-2412 Over 80 g
• Torque Check
Torque Meter
Play: TW-2111 30 to 60 g. cm
Fast forward: TW-2231 55 to 140 g.cm
Rewind: TW-2231 55 to 140 g.cm
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
ADJUSTMENT
Specified Value
• Tape Speed
Figure 9-1 ADJUSTMENT POINT
TUNER SECTION
Figure 9-2 ADJUSTMENT POINTS
MAIN PWB
FM
ANTENNA
SOCKET
T351
R336
CNP301
AM
ANTENNA
SOCKET
FE301
VR351
FM Mute
Level
AM IF
TP301
SO301
T302
AM
Tracking fL
T306
AM Band
Coverage fL
MTT-111 Variable 3,000 ± Headphone
resistor in 90 Hz terminal
motor.(M901)
TAPE MECHANISM
M901
Tape
Motor
Variable
resistor
Adjusting
Parts
Display
Frequency
• Setting the Test Mode
Keeping the FF/FWD button and MEMORY/SET button
pressed, turn on POWER. Then, the frequency is initially set
in the memory as shown in Table. Call it with the JOG DIAL
knob to use it for adjustment and check of tuner circuit.
Preset No.
FM
Preset No.
AM
1 87.50 MHz 6 522 kHz
2 108.00 MHz 7 1,620 kHz
3 98.00 MHz 8 990 kHz
4 90.00 MHz 9 603 kHz
5 106.00 MHz 10 1,404 kHz
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
Adjust so that an output signal appears.
Check Point Instrument
Connection
Display
Frequency
87.5 MHz 87.5 MHz 2.2 V ± 0.7 V TP301
108 MHz 108 MHz 7.3 V ± 1.0 V TP301
• Check FM VT
Signal generator: 1 kHz, 40 kHz dev., FM modulated
98.00 MHz 98.00 MHz VR351*1 Input: SO301
(30 dBµV) Output: Speaker
Terminal
Instrument
Connection
*1. Input: Antenna, Output: Speaker Terminal
*2. Input: Input is not connected, Output: TP301
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
IF 450 kHz 1,620 kHz T351 *1
AM Band — 522 kHz (fL): T306 *2
Coverage 1.1 ± 0.1 V
AM 990 kHz 990 kHz (fL): T302 *1
Tracking
fL: Low-renge frequency
fH: High-renge frequency
Signal generator: 400 Hz, 30%, AM modulated
• AM IF/RF
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