Sony CFD-E55L Service Manual page 28

Q Q
3 7 6 3 1 5 1 5 0
• IC Block Diagrams
– CD Board –
IC701 CXA1992BR
39 38 37 36 35 34 33 32
PD 2 PD 1 PD LD
I-V AMP I-V AMP AMP AMP
RF SUMMING
FOCUS OK
AMP
COMPARATOR
VCC
LASER
POWER
CONTROL
IFB1 – IFB6
PEAK/BOTTOM
HOLD
COMPARATOR
FE PEAK/BOTTOM
40
BIAS HOLD
FOCUS BIAS
FOCUS ERROR
WINDOW
AMP
VEE COMPARATOR
F I-V
F
41
AMP
TGH
E I-V TRACKING GAIN
TGFL
E 42
AMP WINDOW
TGL
COMPARATOR
BALH IIC DATA REGISTER, INPUT SHIFT REGISTER,
EI 43
ADDRESS DECODER, SENSE SELECTOR,
VEE 44 VEE
BALL
OUTPUT DECODER
TEO 45
ATSC
E-F BALANCE
T E
WINDOW L 1 3 9 4 2 2 9 6 5 1 3
LPFI 46
COMPARATOR
TEI 47
ATSC
ATSC 48 WINDOW
COMPARATOR
TZC
TZC 49
COMPARATOR
TM1
DFCT
TRACKING PHASE
COMPENSATION
TDFCT 50 TG1
VCC
CENTER
VC 51 VOLTAGE
GENERATOR
FZC
FZC 52
VCC
COMPARATOR
VEE
FOCUS PHASE FS1
CHARGE UP
COMPENSATION
FS2
FS4
DFCT
VEE
1 2 3 4 5 6 7 8 9
w w w
– 50 –
IC702 BA6898FP
28 27 26 25 24
31 30 29 28 27
LEVEL SHIFT
+
– REGULATOR
BIAS, T. S. D
LEVEL SHIFT
MIRR
IIL
↓
TTL
DEFECT
AMP
1 2 3 4 5 6
26 SENS2
IIL IC703 CXD2589Q
↓
25 SENS1
TTL
24 C. OUT
60
23 XRST
TTL 22 DATA VDD 61
↓
21 XLT SYSM 62
IIL
20 CLK PWM
19 LOCK
AVSS 63
VCC 18 VCC
VCC
ISET 17 ISET
TM6
16 SL O
AVDD 64
15 SL M
14 SL P
TM5
65
AOUT1
TM2 66
AIN1
LOUT1 67
VEE
VCC AVSS 68
TM7 XVDD 69
XTAI 70 OSC
TM4
PWM
71
XTAO
FSET
XVSS 72
TM3
TG2
VEE
10 11 12 13
AVSS 73
LOUT2 74
AIN2 75
x a o
AOUT2 76
AVDD 77
. i
AVSS 78
XRST
79
VDD
80
1
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23 22 21 20 19 18 17 16 15
NC
VCC VCC
LEVEL SHIFT
–
+
+
–
DRIVER
MUTE
MONITOR
LEVEL SHIFT
7 8 9 10 11 12 13 14
59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41
SERIAL-IN
INTERFACE
Q Q
3 7
OVER SAMPLING
DIGITAL FILTER
EFM ASYMMETRY
DEMODULATOR CORRECTOR
3rd-ORDER
NOISE SHAPER
ERROR 16k
CORRECTOR RAM
SUB CODE
PROCESSOR DIGITAL
PLL
DIGITAL D/A
OUT INTERFACE
OSC
CLOCK
GENERATOR
CPU u 1 6 3
y
INTERFACE
DIGITAL
SERVO
CLV
AUTO
SEQUENCER
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
– 51 –
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2 4
8 9 9
– MAIN Board –
IC1 TA2104BN
GND1 1
FM RF
FM RF IN 2
AM
AM LOW OUT 3 MIX
FM FM
MIX OUT 4
MIX OSC
AM
OSC
BUFF BUFF
VCC2 5
LEVEL
DET
AM IF
AM IF IN 6
ST
IF BUFF
FM IF
1/8
FM IF IN 7
SW
GND2 8
AM
DET
IF REQ
AF BUFF
AGC
AGC 9
AF
FM
QUAD 10 DET
ST/MO
R OUT 11
FM/AM
MUTE
VCO
L OUT 12
DIVIDE
DECODE
40 LRCKI IC2 LC72137-D
39
LRCK
6 3 1 5 1 5 0 8 9
NC 1
CE
2
38 ASYO
DI
CCB
CL 4 I/F
37 ASYI
DO 5
36 BIAS
35 RF
REFERENCE
DIVIDER
B01 6
34 AVDD
PHASE
12BITS
DETECTOR
PROGRAMMABLE
B02 7
CHARGE
DIVIDER
PUMP
33 CLTV
B03 8
UNLOCK
32 AVSS I01 9
DETECTOR
POWER ON
I02 10
31 FILI RESET
30 FILO
29 PCO
SWALLOW
COUNTER
1/2
1/16,1/17
4BITS
UNIVERSAL
COUNTER
28 V16M
27 VCTL
IFIN 11
26 VCKI
25 VPCO1
24 TES1
m
23 TES0
c o
22 PWMI
.
21
MDP
2
8 9 9
24 FM RF OUT
23 VCC1
AM RF IN
22
21 FM OSC
20 AM OSC
19 OSC OUT
18 ST IND
17 IF OUT
16 DET OUT
MPX IN
15
14 LPF2/MO-ST
13
LPF1/BAND
2 4 9 8 2 9 9
22 NC
21 XOUT
20 XIN
19 AOUT
18 AIN
PD
17
16 VSS
15 VDD
14 B04
13 FMIN
12 AMIN
– 52 –