– 15 –
CD-K477W
Figure 15 ADJUSTMENT POINTS
Instrument
Connection
• FM RF
Signal generator: 1 kHz, 40 kHz dev, FM modulated
Test Stage Frequency
Frequency
Display
Setting/
Adjusting
Parts
Band
—
87.5 kHz
(fL): LT02
*1
Coverage
3.7 ± 0.1 V
RF
98 MHz
98 MHz
LT01
*2
10 - 30 dB
*1. Input: Antenna,
Output: TP301
*2. Input: Anetnna,
Output: Speaker Terminal
• Setting the Test Mode
Keeping the PAUSE button and TUNER button pressed, turn
on POWER. Then, the frequency is initially set in the memory
as shown in Table. Call it with the PRESET button to use it for
adjustment and check of tuner circuit.
Preset
No.
1
87.50 MHz
6
531 kHz
11
3.2 MHz
16
9.5 MHz
2
108.00 MHz
7
1,602 kHz
12
7.3 MHz
17
21.85MHz
3
90.00 MHz
8
603 kHz
13
3.9 MHz
18
11.65 MHz
4
106.00 MHz
9
1,404 kHz
14
7.1 MHz
19
21.45 MHz
5
98.00 MHz
10
990 kHz
15
5.06 MHz
20
15.1 MHz
21 ~ 40
FM
Preset
No.
MW
SW2
Preset
No.
SW1
Preset
No.
• FM Detection
Signal generator: 10.7 MHz, FM sweep
Test Stage
Instrument
Connection
Frequency Frequency
Display
Setting/
Adjusting
Parts
IF
10.7 MHz
98 MHz
TT01
*1
(Turn the
core of trans-
former TT01
fully counter-
clock wise)
*1. Input: Antenna,
Output: TP301
*2. Input: Anetnna,
Output: Speaker Terminal
*1. Adjust so that an output signal appears.
• FM Mute Level
Signal generator: 1kHz, 40 kHz dev., FM modulated
Frequency
Adjusting
Parts
Instrument
Connection
Frequency
Display
98.00 MHz
98.00 MHz
VR351 *1
Input: Antenna
(25 dBµV)
Output: Speaker
Terminal
TUNER PWB
AM IF
T351
VR351
LT02
TT01
T303
TC303
T304
TC302
T302
T308 TC304
T307 TC305
T306
LT01
MW Band
Coverage
FM Mute
Level
FM Band
Coverage
MW
Tracking
IC303
SW2 Tracking
fH
fL
TP302
SW1 Band
Coverage
fL
fH
SW1
Tracking
fH
fL
SW2
Coverage
fL
fH
TP301
R357
FM IF
FM RF
SO301
ANTENNA
TERMINAL