Sony ICF-CD863V Service Manual ▷ View online
13
ICF-CD863V
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
+
–
– MAIN BOARD (Component Side) –
L1 AM VCO Voltage Adjustment
RV1 FM Stereo Adjustment
RV2 AM IF Adjustment
AM
Tracking
Adjustment
Tracking
Adjustment
CT1
L5
L5
}
FM/TV (2 – 6 ch)
Tracking Adjustment
Tracking Adjustment
L2
CT2
CT2
}
TV (7 – 13 ch)
WEATHER (1 – 7 ch)
Tracking Adjustment
WEATHER (1 – 7 ch)
Tracking Adjustment
CT3
L3
L3
}
– MAIN BOARD (Conductor Side) –
TP (ANT)
TP (FM GND)
TP (RADIO B+)
TP (VT)
TP (FM ST)
TP (AM GND)
– LCD BOARD (Component Side) –
RV401 Auto Brightness Adjustment
– LCD BOARD (Conductor Side) –
TP (GND)
TP (DIMMER)
– DIMMER BOARD (Conductor Side) –
IC403
14
ICF-CD863V
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-CD863V
15
15
SECTION 5
DIAGRAMS
5-1.
BLOCK DIAGRAM – CD Section –
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 17)
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 16)
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
ICF-CD863V
16
16
25
22
20
16
18
12
19
20
11
FM
RF AMP
FM/TV
LPF
MPX
DECODER
TV/FM
OSC
AM/FM: 1/2
TV: 1/8
PHASE DETECTOR
CHARGE PUMP
DATA SHIFT REGISTER
LATCH
FMIN
MPXI
R-CH
ARFI
150kHz
DETO
45kHz
FMRO
TVRO
AMLO
FTLO
FMIN
AMIN
29
IFCT
12
BAND
1
VCO
TV/FM/AM RF AMP,
MIX, OSC, DET, MPX
IC1
FM/AM PLL
IC51
RV2
AM IF
RV1
FM STEREO
D4
AM
OSC
FM
LMT
FM
DET
AGC
AMP
AM
BPF
19
REGV
24
TV
RF AMP
TVIN
ANT1
(FM/TV)
CT3, L3
CT2, L2
CT1, L5
L2
FM/TV
RF
CT2
BPF1
AM TRACKING
BPF
L5
AM
FERRITE-ROD
ANTENNA
L1
AM OSC
L4
FM/TV
OSC
X51
75kHz
AM
RF AMP
26
CT1
L3
TV/WEATHER
RF
CT3
D3
D2
(1/2)
D2 (2/2)
D5
+
+
35
LOUT
3
36
OSC BUFFER
Q2
AM VCO
VOLTAGE
FM/TV(2-6CH)
TRACKING
TV(7-13CH)/WEATHER
TRACKING
LOW-PASS
FILTER
Q52, 53
PSN
REGULATOR
VCO
BAND SELECT
Q51
15
PD
5
BO1
6
BO2
PSN
SWALLOW
COUNTER
1/16, 1/17, 4BITS
12BITS
PROGRAMMABLE
DIVIDER
CCB
I/F
CLK
2
3
1
DI
XIN
XOUT
CE
CLK
DI
DI, CLK, CE
CE
B
(Page 15)
: FM/TV(2-6CH)
: TV(7-13CH)/WEATHER
: AM
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
TUNER-L
(Page 17)
C
VT
5-2.
BLOCK DIAGRAM – TUNER Section –
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