Sony ICF-CD863 / ICF-CD863L Service Manual ▷ View online
ICF-CD863/CD863L
13
13
– MAIN BOARD (Conductor Side) –
TP
(FM IN)
TP (FM ST)
TP
(RADIO B+)
1
4
CN303
TP
(GND)
TP
(VT)
– MAIN BOARD (Component Side) –
CT4 LW VCO Voltage Adjustment (CD863L)
L4 AM (MW) VCO Voltage Adjustment
RV1 FM Stereo Adjustment
T1 AM IF
Adjustment
L1
FM RF
CT2
}
Tracking
Adjustment
Adjustment
L3-2 LW Tracking Adjustment
CT3
CT3
}
(CD863L)
L3-1 AM (MW) Tracking
CT2
CT2
}
Adjustment
Adjustment Location:
AUTO BRIGHTNESS ADJUSTMENT
Connecting:
1. Set to power off state.
2. Connect a digital voltmeter to TP (DIMMER) and TP (GND)
2. Connect a digital voltmeter to TP (DIMMER) and TP (GND)
on the LCD board and confirm that the voltage is 0 V.
3. Turn on the power.
4. Connect the digital voltmeter to TP (DIMMER) and TP (GND)
4. Connect the digital voltmeter to TP (DIMMER) and TP (GND)
on the LCD board and adjust RV401 so that the voltage be-
comes 1.5
comes 1.5
± 0.05 V.
5. Turn off the power.
6. Applied sufficient light to IC403 (brightness sensor) on the
6. Applied sufficient light to IC403 (brightness sensor) on the
DIMMER board and confirm that the voltage is 3.3
± 0.3 V.
7. Short the BP404.
Adjustment Location:
digital voltmeter
TP (DIMMER)
TP (GND)
100 k
Ω
LCD board
+
–
– LCD BOARD (Component Side) –
RV401 Auto Brightness Adjustment
– LCD BOARD (Conductor Side) –
TP (GND)
TP (DIMMER)
– DIMMER BOARD (Conductor Side) –
IC403
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-CD863/CD863L
14
14
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-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 DATA-IN CD
54 DATA CD/RADIO
55 CLK CD/RADIO
53 CE CD/RADIO
58 XRST
57 DRF
41 FSEQ
CD-L
39
CD OPEN
D304
D305
D306
(Page 16)
A
SYSTEM
CONTROLLER
IC401 (1/2)
R-CH
: CD PLAY
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
DI, CLK, CE
(Page 15)
B
GENERAL-PURPOSE
PORTS
COMMAND
INTERFACE
INTERFACE
DRF
XOUT
XIN
49
48
X701
33.8688MHz
DI
CLK
CE
D52
D53
D54
S301
CD LID OPEN/CLOSE
DETECT
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – CD Section –
ICF-CD863/CD863L
15
15
CF1
10.7MHz
FM/AM PLL
IC51
CT1, L1
FM TRACKING
CT2, L3
AM TRACKING
LOW-PASS
FILTER
LOW-PASS
FILTER
• SIGNAL PATH
: FM
: AM
X51
75kHz
L1
FM RF
XOUT
XIN
AM IN
A OUT
A IN
FM IN
20
19
11
12
18
BO2
6
CT1
D2
SWALLOW
COUNTER
UNIVERSAL
COUNTER
CCB
INTERFACE
REFERENCE
DIVIDER
UNLOCK
DETECT
12 BIT
PROGRAMMABLE
DIVIDER
PHASE
DETECTOR/
CHARGE PUMP
SHIFT REGISTER & LATCH
1/2
BO1
DI
CL
CE
PD
2
3
1
5
17
16
• R-ch is omitted due to same as L-ch.
DI
CLK
CE
R-CH
(Page 14)
B
TU-L
(Page 16)
C
L3
AM FERRITE-ROD
ANTENNA
(CD863L)
(CD863)
(CD863)
DI, CLK, CE
18
20
16
13
24
22
FM
FRONT-END
AM
FRONT-END
FM IF AMP/
DISCRI
DECODER
AMP
SWITCH
TUNING
INDICATOR
STEREO/MONO
SELECT
FM/AM
SELECT
REGULATOR
1/2
CONTER
VCO
AM IF AMP/
DET
PD2
PD1
14
FM
ANT
ANT
19
AM RF
IN
IN
FM/AM
FE OUT
CF3
10.7MHz
CF2
450kHz
FM RF
26
DISCRI
FM
IF IN
IF IN
4
ST IND
3
AM
IF IN
IF IN
PILOT DET
LPF
15
BAND SW
21
REG
29
PLL LPF
27
VCO
1
PLL LPF
2
PILOT DET
LPF
AM OSC
FM OSC
FM/AM FRONT-END,
FM/AM DET, MPX
IC1
T1
AM IF
LCH OUT
6
RCH OUT
5
T1
AM IFT
RV1
FM STEREO
ANT1
(FM)
BPF1
BPF
L.P.F.
CT4
LW VCO
VOLTAGE
CT3, L3-2
LW
TRACKING
CT2, L3-1
MW
TRACKING
L3
MW/LW
FERRITE-ROD
ANTENNA
CT2
Q2
CT3
L3-2
(LW)
L3-1
(MW)
Q2
MW/LW
SWITCH
D5
(1/3)
D5
(2/3)
CT2
D4
(1/2)
L4
AM(MW/LW) VCO
VOLTAGE
CT4
L4
AM
OSC
Q3
LW
SWITCH
D5
(3/3)
D4
(2/2)
5-2.
BLOCK DIAGRAM – TUNER Section –
ICF-CD863/CD863L
16
16
63
HP ON
52
BUZZER
60
POWER ON
61
A MUT
76
RESET
48
CD ON
RADIO ON 59
NAP LED
CD LED
RADIO LED
BUZZER LED
68
BACK LIGHT1
42
AUTO DIMMER
49
AC IN
62
HP SW
SYSTEM CONTROLLER
IC401 (2/2)
L OUT 3
R OUT
STBY
5
8
R IN
11
L IN
12
BUFFER
Q309
LINE AMP
Q359
MUTING
Q151
B+ SWITCH
Q1
RV351
R-CH
R-CH
R-CH
R-CH
D303
Q302
MEGA BASS
FEED BACK
SWITCH
Q357, 363
STANDBY
SWITCH
Q351, 352
STANDBY
SWITCH
Q351, 352
HEADPHONE
DETECT
Q305
MUTING
CONTROL
SWITCH
Q360
MUTING
CONTROL
SWITCH
Q361
+5V
REGULATOR
Q951
LIQUID CRYSTAL DISPLAY
LCD401
+6V
REGULATOR
Q953
+3.3V
REGULATOR
Q952
+4V
REGULATOR
Q405
POWER AMP
IC351
OUT 2 3
OUT 1 5
STBY
8
BASS IN
12
POWER AMP
IC352
O/I4
10
O/I3
9
I/O3
8
I/O4
11
INPUT SELECT
IC303
D357
MUTING
Q307
MUTING
Q358
Q301
Q306
Q101
Q201
HEADPHONE
SWITCH
Q101, 201
T901
POWER
TRANSFORMER
D403 – 406
4V
D407 – 412
(LCD BACK LIGHT)
Q403,
Q404
Q404
SP101
(L-CH)
(L-CH)
SP301
(WOOFER)
SP201
(R-CH)
J301
(HEADPHONE)
i
(AC IN)
RECT
D902, 903
VT
3.3V
MOTOR 6V
TU 3.3V
CD 3.3V
TU 3.3V
CD 3.3V
RECT
D905, 906
RECT
D907 – 910
B+ SWITCH
Q305
67
BACK LIGHT0
XT2
XT1
X2
X1
4V
LCD 3.3V
5V
RESET SIGNAL
GENERATOR
IC402
LOW-PASS
FILTER
IC302
BRIGHTNESS
SENSOR
IC403
D401
70
71
X401
32.768kHz
74
75
X402
4.19MHz
65
VR DATA
64
VR CLK
77 – 80
KEY0 – KEY3
43 – 46
COM0 – COM3
6 – 9
SEG0 – SEG27
10 – 37
Q401,
Q402
Q402
Q401 – 404
LED DRIVE
LED DRIVE
S601 – 621,
651, 652
: CD PLAY
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: TUNER
51
BUZZER MUTE
MUTING
Q152
MUTING
Q353, 354
R-CH
D352
3.3V
C
(Page 15)
A
(Page 14)
+
1
LOGIC
CONTROL
4
5
2
ELECTRICAL VOLUME
IC301
L IN
L OUT
VR DATA
6
C3
12
C4
VR CLK
RV401
AUTO
BRIGHTNESS
5-3.
BLOCK DIAGRAM – MAIN Section –
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