Sony ICF-CD863V Service Manual page 28

ICF-CD863V
• IC Block Diagrams
– CD Board –
IC701 LC78645NE-U
80 79 78 77 76 75 74 73
APC PLL VCEC
CLV, CAV
CONTROL
SLCO 1
SLICE LEVEL
SLCIST 2
CONTROL
EFMIN 3
RF 4
RFVDD 5
PH
LEVEL SET
RFVSS 6
+
MIX EQ AGC BH
–
FIN1
7
+
+
+
LPF
–
– VREF
FIN2 8
+
TIN1 9 – +
LPF SW
TBAL
+
–
LPF
TIN2
10 –
AUTO
TBAL
+
ADJUST
VREF 11
–
VREF
+
REF1 12
FE 13
TEC 14
MONITOR
TE 15
CONTROL
RFMON 16
JITTER
JITTC 17
DETECT
ADAVDD 18
A/D
ADAVSS 19
TDO 20 S/H D/A SW
GENERAL-PURPOSE
PORTS
21 22 23 24 25 26 27
IC702 BA6998FP-E2
28 27 26 25 24 23 22 21 20 19 18
DRIVE DRIVE
BUFFER BUFFER
VCC VCC
LEVEL LEVEL
SHIFT SHIFT
– –
+ +
+ +
– –
REGULATOR VOLTAGE DETECT,
DRIVER
BIAS VOLTAGE DETECT,
MUTING
THERMAL SHUT DOWN
LEVEL
SHIFT
–
+
DRIVE
BUFFER
1 2 3 4 5 6 7 8 9 10 11
72 71 70 69 68 67 66 65 64 63 62 61
DRF COMMAND INTERFACE
RUPTURE
DEFECT
+
–
RAM
+
–
INTERPOLATION
MUTE
SERVO
ATTENUATION
PROCESSOR
DEEMPHASIS
+
–
RAM
ERROR
CORRECTION
AUDIO CD
C1-2, C2-2
TRACK
JUMP
CLOCK
GENERATOR
FRAME SYNC
DETECT,
PROTECT INSERT,
8FS
EFM DECODE
DIGITAL FILTER
1BIT DAC
SUBCODE
DECODE CRC
AUDIO
MONITOR SIGNAL SELECTOR
OUT
28 29 30 31 32 33 34 35 36 37 38 39 40
17 16 15
LEVEL
SHIFT
DRIVE
BUFFER
12 13 14
– AMP Board –
IC351, 352 BA5417
BS
1 2 3 4 5
60 DATA
SERIAL
59 DATACK
OUT
58 LRSY
– MAIN Board –
57 ASDFIN
EXTERNAL
56 ASDACK
AUDIO IN
IC1 CXA1960Q
55 ASLRCK
54 16MOUT
53 EFLG
MPRM 31
52 C2F
51 XVSS
50 FSX/16MIN V12M 32
49 XIN
33
MUTE
48 XOUT
47 XVDD
AAGC 34
DETO 35
46 RVDD
45 RCHO
44 RVSS
LPF
43 LVSS
42 LCHO
MPXI 36
41 LVDD
PLT2 37
38
PLT1
PLL1 39
PLL2 40
28 28
T.S.D.
+ +
– –
STANDBY
BS FILTER
6 7 8 9 10 11 12 13 14 15
30 29 28 27 26 25 24 23 22 21
AM RF FM RF
AMP AMP
TV RF
AMP
OL DET
FM LMT
MUTE 150kHz
1/X
FM DET
FM/TV
LPF
AM/FM: 1/2
PSN TV: 1/8
AM BPF
AGC AMP
45kHz
TUNE
STEREO AUDIO R
MPX DECODER
STEREO AUDIO L
STID
38kHz
1.25V
PD VCO 1/2 1/2
19kHz
PLAP
1.65V
1 2 3 4 5 6 7 8 9 10
TVRO
20
19 REGV
1.25V
FM/TV OSC
18 FTLO
17 FMBF
1.25V
16 AMLO
AM OSC
15 FALC
PLLO
14
COMP
13
–
+
BAND
12
11 TUNE