Sony HCD-FC7 (serv.man2) Service Manual ▷ View online
77
HCD-FC7
– FL BOARD –
IC802 MSM9202-05GS-KDR1
39
33 S29
S35
55
40 G1
G16
5
32
S28
S1
1
P1
Port
Driver
Control
Circuit
8bit
Register
Shift
Command
Decoder
Grid
Driver
2
P2
3
AD2
AD
Driver
Segment
Driver
CGROM
CGROM
248wX35b
DCROM
16wX8b
Address
Selector
8wX35b
ADROM
16wX2b
Digit
Control
Duty
Control
Oscillator
Timing
Generator 1
Timing
Generator 2
4
AD1
56 VFL
57 GND
58 OSC0
59 OSC1
60 RST
61 CS
62 CLK
63 DAT
64 VDD
Read
Address
Counter
Write
Address
Counter
78
HCD-FC7
– POWER BOARD –
IC901 STR-F6238S (US, Canadian models)
IC901 STR-F6267D (Australian, Singapore models)
5
4
3
2
1
OSC
START
REGULATOR
DRIVE
REGULATOR
THERMAL
SHUT DOWN
LATCH
OVER
VOLTAGE
PROTECTOR
OVER
CURRENT
PROTECTOR
OVER LOAD
PROTECTOR
D
GND
F.B
VIN
O.C.P
INH1
INH2
DRIVE
CURRENT
MIRROR
FEED BACK
IC903 SI-8050S-LF1101
IC904 M51945BL
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
+
–
–
+
–
–
RESET
VREF
COMPARATOR
ERROR AMP
OSC
1
VIN
2
SW OUT
3
GND
4
VOS
5
S.S
+
–
3
SUPPLY
VOLTAGE
INPUT
NC
GND
1.25V
1
2
4
OUTPUT
5
79
HCD-FC7
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
ON/OFF
SOFT
START
+
–
–
+
–
–
RESET
VREF
COMPARATOR
ERROR AMP
OSC
1
VIN
2
SW OUT
3
GND
4
VOS
5
ON/OFF
IC906 SI-8033JF
IC908 SI-8120JF
OVER
CURRENT
PROTECTOR
LATCH
&
DRIVER
OVER HEAT
PROTECTOR
REGULATOR
ON/OFF
SOFT
START
+
–
–
+
–
–
RESET
VREF
COMPARATOR
ERROR AMP
OSC
1
VIN
2
SW OUT
3
GND
4
VOS
5
ON/OFF
– RELAY BOARD –
IC701, IC711, IC721 BA6956AN
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
80
HCD-FC7
– RF BOARD –
IC001 CXD1881AR
MUX
ATT
INPUT
BIAS
AGC
GCA
PROGRAMMABLE
EQUALIZER
FILTER
DIFFERENTIATOR
64 63
62 61 60 59
58
57
51
56
1
2
FULL WAVE
RECTIFER
AGC CHARGE
PUMP
+
–
+
–
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
–
–
+
–
–
+
–
–
INPUT
SEL
ATT
2
4
2
2
INPUT
IMPEDANCE
SEL
OFFSET
CANSEL
MNTR
CONTROL
SERIAL
PORT
REGISTER
4
FROM
S-PORT
4
FROM
S-PORT
INPUT
IMPEDANCE
SEL
3
FROM
S-PORT
CLAMP &
ENVELOPE
LEVEL
DAC
SIGDET
AGCO
BUFFER
55 54
53 52
50
49
OUTPUT
INHIBIT
FROM S-PORT
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
GCA
CD/DVD
4
FROM
S-PORT
3
FROM
S-PORT
MUX
3
FROM
S-PORT
GCA
3
FROM
S-PORT
3
FROM
S-PORT
EQ
VC
COMPARATOR
PHASE
DETECTOR
PHASE
DETECTOR
A+D
B+D
+
+
+
A+C
B+C
GCA
W/LPF
SUM
AMP
AMP
18 19 20
21 22
24 25
23
26
27
28 29
31
32
30
GCA
GCA
VCI FOR SERVO INPUT
VC = VPB/2
DUAL APC
LD H/L
FROM S-PORT
APC SEL
DVD/CD
TOPHOLD
GCA
TOPHOLD
GCA
41
48
47
46
45
GCA
OFFSET
CANSEL
5
FROM
S-PORT
GCA
40
GCA
OFFSET
CANSEL
6
FROM
S-PORT
3
FROM
S-PORT
GCA
GCA
CEFDB
CP/CN
LOW
IMPEDANCE
CD/DVD
SUB
GCA
MUX
GCA
LPF
GCA
LPF
39
38
37
36
OFFSET
CANSEL
PEAK/BOTTOM
HOLD
BOTTOM
ENVELOPE
INPUT
BUFFER
5
FROM
S-PORT
GCA
LPF
V25/2
TE
RST
35
34
33
FOR SERVO
OUTPUT
PH
TOP
HOLD
GCA
SEL
LINKEN
MUX
HOLDEN
+
–
+
–
COMPA-
RATOR
INTERNAL
FDGHG
HYSTERESISTER
& OFFSET
FROM S-PORT
MIRR
COMPARATOR
COMPARATOR
INPUT GAIN
FROM S-PORT
SEL
DAC
SINK CURRENT
FROM S-PORT
2
AGCO
FAST ATTACK
AGC
HOLD
BCA
DET
DET
2
FROM
S-PORT
PH
2
2
INPUT
IMPEDANCE
FROM S-PORT
44
43
42
V33 FOR
OUTPUT
OUTPUT
BUFFER
PI
FE
TE
CE
V25
V125
V25/3
LPF ATT
POL SEL
BUFFER
CONTROL
SIGNALS
TO EACH
BLOCK
3
CE ATT
CEPOL
D
C
B
A
CD F
CD E
VPB
VC
DVDLD
CDLD
CDPD
DVDPD
LDON
VNB
MIRR
MP
MB
MIN
MEVO
MLPF
CE
SDEN
SDATA
SCLK
V33
FE
TE
PI
V25
V125
TPH
DFT
LINK
LCP
LCN
MNTR
DVDRFP
DVDRFN
A2
B2
C2
D2
CP
CN
D
C
B
A
CD D
CD C
CD B
CD A
RFDC
RFSIN
ATOP
ATON
AIN
AIP
VPA
RFAC
VNA
BYP
DIN
DIP
FNP
FNN
MEV
RX
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