Sony CFD-E75 Service Manual page 36

CFD-E75
• IC Block Diagrams
– CD Board –
IC701 LC78645NE
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
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
IC702 BA6998FP-E2
28 27 26 25 24 23
DRIVE
BUFFER
LEVEL
SHIFT
–
+
+
–
REGULATOR VOLTAGE DETECT,
BIAS VOLTAGE DETECT,
THERMAL SHUT DOWN
LEVEL
SHIFT
–
60 DATA
SERIAL
+
59 DATACK
OUT
58 LRSY DRIVE
BUFFER
57 ASDFIN
1 2 3 4 5 6
EXTERNAL
56 ASDACK
AUDIO IN
55 ASLRCK
54 16MOUT
53
EFLG
52 C2F
51
XVSS
– TUNER Board –
50 FSX/16MIN
IC1 TA2149N
49 XIN
48 XOUT
47 XVDD
RF GND 1
FM RF
FM RFIN 2
AM
AM LOW CUT 3
MIX
46 RVDD
FM
MIX OUT 4
45 RCHO
MIX
44 RVSS
LPF
43 LVSS
42 LCHO
VCC 5
41 LVDD
AM IF
AM IF IN 6
FM IF
FM IF IN 7
GND 8
AGC
AGC 9
QUAD 10
R-OUT 11
MUTE
L-OUT 12
36 36
22 21 20 19 18 17 16 15
DRIVE
BUFFER
VCC VCC
LEVEL
SHIFT
–
+
+
–
DRIVER
MUTING
LEVEL
SHIFT
DRIVE
BUFFER
7 8 9 10 11 12 13 14
24 FM RFOUT
23
RF VCC
22 AM RFIN
FM
FM OSC
21
OSC
AM
20 AM OSC
OSC
BUFF BUFF
1/1 OR
1/16
19 OSC OUT
LEVEL
DET
ST 18 ST LED
IF BUFF
1/8
SW
AM
DET
IF REQ 17 IF REQ
AF BUFF
16 DET OUT
AF
FM
DET MPX IN
15
ST/MO
FM/AM
14 LPF1
VCO
DIVIDE
13
LPF2
DECODE