Service manual

– 9 –
CD-XP160W
Test Stage
Frequency Frequency
Display
Setting/
Adjusting
Parts
Instrument
Connection
••
••
• AM IF/RF
Signal generator: 400 Hz, 30%, AM modulated
*1. Input: Antenna Output: TP302
*2. Input: Antenna Output: TP301
TUNER SECTION
fL: Low-range frequency
fH: High-range 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): T302 *1
*1. Input: Antenna Output: TP301
*2. Input: Antenna Output: Speaker Terminal
••
••
• FM RF
Signal generator: 1 kHz, 40 kHz dev., FM modulated
FM Band — 87.50 MHz L303 (fL): *1
Coverage 1.3 V ± 0.1 V
FM RF 98.00 MHz 98.00 MHz L302 *2
(10-30 dB)
Test Stage
Instrument
Connection
Frequency Frequency
Display
Setting/
Adjusting
Point
Figure 9-2 ADJUSTMENT POINTS
••
••
• FM IF
Signal generator: 10.7 MHz, FM modulated
IF 10.7 MHz 98 MHz T304 *1
(Turn the
core of trans-
former T304
fully counter-
clock wise)
Test Stage
Instrument
Connection
Frequency Frequency
Display
Setting/
Adjusting
Point
*1. Input: Antenna Output: TP301
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 MTT-111 Variable 3,000 ± 30 Hz Speaker
speed Resistor. Terminal
(Load
resistance:
6 ohms)
••
••
• Tape Speed
Figure 9-1
Tape
Motor
TAPE MECHANISM
Variable Resistor
FM IF
FM RF
VR351
FM MUTE
Level
T351
AM IF
T302
T306
T304
IC301
IC302
L303
L302
CNP301
TA302
FM BAND
COVERAGE fL
AM BAND
COVERAGE fL
AM TRACKING
fL
MAIN PWB
1
1
11 12
22
20
R381
R356
R357
TP301
TP302
Adjusting
Parts
Display
Frequency
• FM Mute Level (FM ST MODE)
Signal generator: 1 kHz, 40 kHz dev., FM modulated
*1. Adjust so that an output signal appears.
98.00 MHz 98.00 MHz VR351*1 Input:TA302
(26 dBµV) Output: Speaker
Terminal
Instrument
Connection