DOWNLOAD Sony ICF-CD863V Service Manual ↓ Size: 2.45 MB | Pages: 44 in PDF or view online for FREE

Model
ICF-CD863V
Pages
44
Size
2.45 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
icf-cd863v.pdf
Date

Sony ICF-CD863V Service Manual ▷ View online

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 –
ICF-CD863V
17
17
5-3.
BLOCK  DIAGRAM  – MAIN Section –
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
SP101
(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, 908
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
Q401 – 404
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 16)
A
(Page 15)
+
1
LOGIC
CONTROL
4
5
2
ELECTRICAL VOLUME
IC301
L IN
L OUT
VR DATA
6
C3
12
C4
VR CLK
RV401
AUTO
BRIGHTNESS
ICF-CD863V
18
18
5-4.
NOTE  FOR  PRINTED  WIRING  BOARD  AND  SCHEMATIC  DIAGRAMS
• Circuit Boards Location
Note on Printed Wiring Boards:
X
: parts extracted from the component side.
Y
: parts extracted from the conductor side.
W
: indicates side identified with part number.
f
: internal component.
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side:
Parts on the pattern face side seen from
(Conductor Side)
the pattern face are indicated.
Parts face side:
Parts on the parts face side seen from
(Component Side)
the parts face are indicated.
Note on Schematic Diagram:
• All capacitors are in 
µ
F unless otherwise noted.  pF: 
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in 
 and 
1
/
4
 
W or less unless otherwise
specified.
f
: internal component.
5
: fusible resistor.
C
: panel designation.
A
: B+ Line.
B
: B– Line.
H
: adjustment for repair.
• Voltages are taken with a VOM (Input impedance 10 M
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: FM/TV (2 – 6 ch)
f
: AM
L
: TV (7 – 13 ch)/WEATHER (1 – 7 ch)
J
: CD
Note: The components identified by mark 
0
 or dotted line
with mark 
0
 are critical for safety.
Replace only with part number specified.
KEY board
LCD board
DIMMER board
MAIN board
CD board
HEADPHONE board
VOLUME board
TRANSFORMER board
AMP board
ICF-CD863V
19
19
2.6 Vp-p
239 ns
• Waveforms
– CD Board –
1
IC701 
4
 (RF) (CD PLAY mode)
2
IC701 
qd
 (FE) (CD PLAY mode)
3
IC701 
qg
 (TE) (CD PLAY mode)
4
IC701 
rk
 (XOUT)
ws
IC401 
uf
 (X1) (CD PLAY mode)
0.85 
±
 0.2
Vp-p
Approx. 
90 mVp-p
Approx. 
60 mVp-p
2.9 Vp-p
29.5 ns
– MAIN Board –
qa
IC51 
w;
 (XOUT) (RADIO ON mode)
1.4 Vp-p
13.3 
µ
s
– LCD Board –
wa
IC401 
u;
 (XT1)
7.5 Vp-p
30.4 
µ
s
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