– 13 –
CD-DK2600V
Normal
MTT-111
Variable
3,000
Front
speed
Resistor in
±
30 Hz
Speaker
motor.
terminal
(MM1)
(Load
resistance:
6 ohms)
•
AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna, SO301 Output: TP302
*2. Input: Antenna, SO301 Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-renge frequency
AM IF
450 kHz
1,602 kHz
T351
*1
AM Band
—
531 kHz
(fL): T306
*2
Coverage
1.1
±
0.1 V
AM Tracking 990 kHz
990 kHz
(fL): T303
*1
Figure 13-2 ADJUSTMENT POINT
Test Stage
Frequency
Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
T303
T351
CF352
CF351
CF302
IC303
T306
T302
IC302
IC301
CNP301
SO301
AM LOOP
ANTENNA
T301
MAIN PWB
AM Tracking
AM Band Coverage
AM IF
L312
FM 75 ohms
GND
C393
TP301
C375
R357
TP302
ADJUSTMENT
MECHANISM SECTION
•
Driving Force Check
Torque Meter
Specified Value
Play: TW-2111
Tape 1: Over 80 g
Tape 2: Over 80 g
•
Torque Check
Torque Meter
Tape 2
Play: TW-2111
30 to 80 g. cm
30 to 80 g.cm
Fast forward: TW-2231
—
70 to 180 g.cm
Rewind: TW-2231
—
70 to 180 g.cm
Specified Value
Tape 1
Specified
Value
Adjusting
Point
Instrument
Connection
Test Tape
•
Tape Speed
Figure 13-1
TAPE MECHANISM
Motor
Variable Resistor in motor