Sony ICF-CD543RM Service Manual ▷ View online
13
ICF-CD543RM
FM STEREO ADJUSTMENT
Setting:
Function: RADIO
RADIO ON/BAND button: FM
Function: RADIO
RADIO ON/BAND button: FM
1. Connect the frequency counter to TP (FMST) and TP (RA-
DIO +B) as shown the figure below.
2. Tune the set to 87.5 (98.0) MHz.
3. Adjust RV2 for 75.95 to 76.05 kHz reading on the frequency
3. Adjust RV2 for 75.95 to 76.05 kHz reading on the frequency
counter.
Adjustment Location: MAIN board (See page 14)
33 k
Ω
+
+
–
–
MAIN board
TP (FMST)
TP (RADIO +B)
TP (FM GND)
frequency counter
1
µ
F/50 V
set
MAIN board
TP (FM IN)
TP (FM IN)
MAIN board
TP (FM GND)
TP (FM GND)
( ): Canadian, AEP models
0.01
µ
F
Carrier frequency : 87.5 (98.0) MHz
Modulation
Modulation
: no modulation
Output level
: 0.1 V (100 dB)
FM RF SSG
14
ICF-CD543RM
– MAIN BOARD (Component Side) –
– MAIN BOARD (Conductor Side) –
CT2
FM/TV (2 – 6 ch) Tracking Adjustment (US model)
L3
}
FM Tracking Adjustment (Canadian, AEP models)
L4
TV (7 – 13 ch)/WEATHER (1 – 7 ch) Tracking Adjustment (US model)
CT3
}
CT1
AM Tracking Adjustment
L1
}
RV2 FM Stereo Adjustment
RV1 AM IF Adjustment
L2 AM VCO Adjustment
TP
(VT)
TP
(FM IN)
TP
(FM GND)
TP
(AM GND)
TP
(RADIO B+)
4
CN371
1
TP
(FM ST)
Adjustment Location:
15
ICF-CD543RM
CD SECTION
CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
In case of operation check, confirm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope to TP (RF) and TP (GND) on the CD
board.
2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)
3. Press the
3. Press the
u
(CD) button.
4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (
A good eye pattern means that the diamond shape (
◊) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns
TIME/DIV: 500 ns
0.8
±
0.2 Vp-p
When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.
for AC range and raise vertical sensitivity.
Adjustment Location:
IC701
TP (GND)
TP
(RF)
– CD BOARD (Conductor Side) –
ICF-CD543RM
17
17
A
A
B
B
D
D
F
F
E
E
C
C
I-V AMP
DETECTOR
12
11
17
18
26
SL+
SL–
F–
F–
F+
F+
T+
T+
T–
T–
SPINDLE
MOTOR DRIVE
M701
(SPINDLE)
S701
(LIMIT)
SLED
MOTOR DRIVE
27
M702
(SLED)
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SP+
SP–
3
25
9
19
FIN
TIN
SLIN
SPIN
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC702
LD
LD
PD
PD
LASER DIODE
OPTICAL PICK-UP
(KSS-213C) OR (KSS-213R)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
2
1
1
M
M
7
MUTE
AUTOMATIC
POWER
CONTROL
Q701
8
FIN2
7
FIN1
+
MIX
4
RF
LPF
EQ
PH
BH
10
TIN2
9
TIN1
A/D
SW
LPF
TRACK
JUMP
TBAL
80
LDD
APC
AUDIO
ADJUST
SERVO
PROCESSOR
RUPTURE
DETECT
79
LDS
SW
AGC
D/A
13
FE
15
TE
20
TDO
21
FDO
23
SLDO
22
SPDO
S/H
3
EFM
IN
IN
SLISE LEVEL
CONTROL
ERROR
CORRECTION
AUDIO CD
C1 – 2, C2 – 2
RAM
8FS
DIGITAL
FILTER
INTERPOLATION
MUTE
ATTENUATION
DEEMPHASIS
1 BIT
DAC
42
LCHO
45
RCHO
LPF
39
DOUT
AUDIO
OUT
FSEQ
PLL
VCEC
CLV, CAV
CONTROL
FRAME SYNC
DETECT,
PROTECT INSERT,
EFM DECODE
31
RAM
DRF
67
25
CONT4
72
CONT1
66
RES
61
CE
62
CL
63
DI
64
DO
65
WRQ
RF AMP, FOCUS/TRACKING SERVO,
DIGITAL SIGNAL PROCESSOR,
CLV SERVO, D/A CONVERTER
IC701
50 WRQ
56 C DATA IN
54 C DATA
55 C CLK
53 C LAT
57 XRST
33 OPEN S/W
OPEN
34 CLOSE S/W
CLOSE
46 DRF
51 FSEQ
CD-L
S651
TRAY
OPEN/CLOSE DETECT
(Page 18)
A
SYSTEM
CONTROLLER
IC401 (1/2)
R-CH
: CD PLAY
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
GENERAL-PURPOSE
PORTS
COMMAND
INTERFACE
INTERFACE
DRF
XOUT
XIN
49
48
X701
33.8688MHz
7 B OUT
A OUT
B IN
A IN
8
35 TRAY OPEN
TRAY CLOSE
36
2
LOADING MOTOR
DRIVE
IC651
3
M651
(LOADING)
M
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – CD Section –
Ver. 1.3
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