Read Sony ICF-CD853 / ICF-CD853L Service Manual online
ICF-CD853/CD853L
24
24
–
+
+
VCC
28
27
26
25
24
23
22
21
20
19
18
17
16
15
LEVEL
SHIFT
–
+
+
VCC
LEVEL
SHIFT
+
–
–
1
2
3
5
6
7
8
9 10
11
12
13 14
LEVEL
SHIFT
+
–
–
+
–
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
DRIVE
BUFFER
REGULATOR VOLTAGE DETECT,
BIAS VOLTAGE DETECT,
THERMAL SHUT DOWN
4
–
+
+
DRIVER
MUTING
GND
OUT4-B
OUT4-A
IN4
IN4'
VREFIN
VCC
VCC
IN3'
IN3
OUT3-A
OUT3-B
NC
OPIN-B
OUT1-B
OUT1-A
IN1
RESET
REG-B
REGOUT
MUTE
GND
IN2'
IN2
OUT2-A
OUT2-B
GND
OPOUT
LEVEL
SHIFT
AUDIO
OUT
+
–
+
–
+
–
+
–
–
+
–
–
+
–
–
+
–
–
PLL VCEC
CLV, CAV
CONTROL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
80
79
78 77 76 75 74 73
72 71 70
69 68
67
66
65 64 63 62 61
21 22 23 24
25
26
27
28 29 30
31 32
33
34
35
36 37 38 39 40
SLICE LEVEL
CONTROL
APC
LEVEL SET
MIX
EQ
AGC
LPF
TBAL
TBAL
+
BH
SW
PH
+
–
–
VREF
+
LPF
LPF
VREF
AUTO
ADJUST
MONITOR
CONTROL
CONTROL
JITTER
DETECT
A/D
S/H
D/A
SW
GENERAL-PURPOSE
PORTS
MONITOR SIGNAL SELECTOR
SERVO
PROCESSOR
SUBCODE
DECODE CRC
FRAME SYNC
DETECT,
PROTECT INSERT,
EFM DECODE
DRF
COMMAND INTERFACE
RUPTURE
DEFECT
TRACK
JUMP
INTERPOLATION
MUTE
ATTENUATION
DEEMPHASIS
LPF
1BIT DAC
8FS
DIGITAL FILTER
ERROR
CORRECTION
AUDIO CD
C1-2, C2-2
RAM
CLOCK
GENERATOR
EXTERNAL
AUDIO IN
SERIAL
OUT
LDD
LDS
FR
VVDD
PCKIST
VVSS
PDO2
PDO1
CONT1
CONT2
CONT3
VSS
VDD5
DRF
*
RES
*
WRQ
DO
DI
CL
CE
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
XVSS
FSX/16MIN
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
TEST
BOUT
VDD
VSS
MONI5
MONI4
MONI3
MONI2
MONI1
FSEQ
V/
*
P
DEFECT
SBCK/FG
SBCK/CONT6
CONT5
CONT4
GPDAC
SLDO
SPDO
FDO
TDO
ADAVSS
ADAVDD
JITTC
RFMON
TE
TEC
FE
REF1
VREF
TIN2
TIN1
FIN2
FIN1
RFVSS
RFVDD
RF
EFMIN
SLCIST
SLCO
+
–
+
–
RAM
• IC Block Diagrams
– CD Board –
– CD Board –
IC701
LC78645NE-U
IC702
BA6998FP
2.6 Vp-p
239 ns
• Waveforms
– CD Board –
– 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
90 mVp-p
Approx.
60 mVp-p
60 mVp-p
2.9 Vp-p
29.5 ns
– MAIN Board –
qa
IC51
w;
(XOUT) (RADIO ON mode)
1.8 Vp-p
13.3
µ
s
– LCD Board –
wa
IC401
u;
(TX1)
7.5 Vp-p
30.4
µ
s
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