XL-T300H
– 12 –
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
AM
GND
FM
75
OHMS
ANTENNA
TERMINAL
SO301
T302
FE301
T306
IC303
T351
VR351
TP301
FM Mute
Level
AM Band
Coverage fL
AM
Tracking fL
AM IF
IC302
20
TUNER PWB-C1
MTT-111
Variable
3,000
±
Headphone
resistor in
90 Hz
terminal
motor.(M901)
TAPE MECHANISM
M901
Tape
Motor
Variable
resistor
Figure 12-2 ADJUSTMENT POINTS
Figure 12-1 ADJUSTMENT POINTS
Adjusting
Parts
Display
Frequency
• FM Mute Level
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. 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 dB
µ
V)
Output: Speaker
Terminal
Instrument
Connection
TUNER SECTION
• Setting the Test Mode
Keeping the FF/FWD button and MEMORY/SET button
pressed, turn on ON/STAND-BY. Then, the frequency is
initially set in the memory as shown in Table. Call it with the
VOLUME UP/DOWN button 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
*1. Input: Antenna,
Output: Speaker Terminal
*2. Input: Input is not connected,
Output: TP301
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
AM 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-range frequency
fH: High-range frequency
Signal generator: 400 Hz, 30%, AM modulated
• AM IF/RF
Содержание CP-XLT300H
Страница 48: ...XL T300H 48 MEMO ...