Sony LBT-XGR88 (serv.man2) Service Manual ▷ View online
53
HCD-XGR88
6-29. IC BLOCK DIAGRAMS
IC101 CXD3017Q (BD BOARD)
IC102 BA5974FM-E2 (BD BOARD)
1
2
3
10 11 12 13 14 15 16 17 18
19
20
60
59 58 57
56
55
54
52
51
50
49
48
47
46 45 44
53
21
39
40
41
42
43
22
23
79
24
26
25
28
27
29
30
31
32
35
36
37
38
33
34
80
62
61
77
78
78
75
76
76
73
74
72
71
70
69
66
65
64
63
68
67
4
5
6
7
8
9
D/A
Interface
Digital
PLL
CPU
Interface
Digital
OUT
Serial-In
Interface
Over Sampling
Digital Filter
Timing
Logic
PWM
3rd-Order
Noise Shaper
PWM
Asymmetry
Corrector
A/D
Converter
OP Amp
Analog SW
Clock
Generator
Digital
CLV
MIRR
DFCT
FOK
SERVO DSP
FOCUS
SERVO
SERVO
TRACKING
SERVO
SELED
SERVO
EFM
Demodurator
Servo Auto
Sequencer
SERVO
Interface
Error
Corrector
16K
RAM
Sub Code
Processor
PWM
GENERATOR
FOCUS PWM
GENERATOR
TRACKING
PWM
GENERATOR
SLED PWM
GENERATOR
SQSO
SQCK
XRST
DATA
XLAT
CLOK
SENS
SCLK
VDD
SPOA
SPOB
XLON
XPCK
SCOR
COUT
MIRR
DFCT
FOK
LOCK
MDP
SSTP
SFDR
SRDR
TFDR
TRDR
FFDR
FRDR
TEST
TES1
VC
FE
SE
TE
CE
RFDC
ADIO
IGEN
ASYO
ASYI
BIAS
RFAC
CLTV
FILO
FILI
PCO
DOUT
XTAI
XTAO
AVDD1
AOUT1
AIN1
LOUT1
LOUT2
AIN2
AOUT2
LMUT
XVSS
RMUT
SYSM
ATSK
WFCK
XUGF
GFS
C2PO
VSS
XTSL
AVDD
AVSS
AVSS
AVDD
VSS
VDD
LRCK
PCMD
BCK
EMPH
XVDD
AVSS1
AVSS2
AVDD2
LEVEL SHIFT
INTERFACE
INTERFACE
INTERFACE
1
2
3
4
5
6
7
8
9
10
11
12
13
14
20
21
22
23
24
25
26
27
28
19
18
17
16
15
F
R
R
F
F
R
R
F
R
R
F
F
MUTE
THERMAL
SHUTDOWN
VREFOUT
VREFIN
POWVCC
CH1FIN
CH1RIN
CH2FIN
CH2RIN
CH2OUTR
CH2OUTF
CH1OUTR
CH1OUTF
CAP
AIN1
CAP
AIN2
GND
PRFVCC
MUTE
POWVCC
CH4SIN'
CH4SIN
CH4BIN
CH3FIN
CH3RIN
CH3OUTR
CH3OUTF
CH4OUTR
CH4OUTF
CAP
AIN3
GND
54
HCD-XGR88
IC103 CXA2581N-T4 (BD BOARD)
27
29
30
4
3
EQ IN
9
D
10
F
E
8
C
7
B
6
A
AC SUM
DC_OFST
RFDCI
28 RFDCO
VC
24 BST
25 VFC
CEI
EQ
APC
5
GND
AC
SUM
26 RFC
AC
VCA
23 RFG
22 VCC
20
21
CE
19 TE_BAL
18 TE
17 FEI
16 FE
1
LD
2
PD
11
SW 12
13
DVCC
14
DVC
15
RFAC
VC
EQ
ON/OFF
VC
VC
VC
VC
DVC
DVC
APC-OFF(Hi-Z)
RW/ROM
(H/L)
DVC
DVC
AVC
DVCC
VC
DVC
RW/ROM
RW/ROM
RW/ROM
RW/ROM
RW/ROM
RW/ROM
DVCC
VCC
VCC
VCC
VOFST
VOFST
VOFST
B
C
A
D
gm
gm
DVCC
55
HCD-XGR88
IC201 TA8409S (MOTOR BOARD)
IC603 BA3830F (PANEL FL BOARD)
1
2
3
4
5
6
7
8
9
HEAT
CUT OFF
BLOCK
STANDBY
BLOCK
VREF
BLOCK
IN2
VCC
OUT2
NC
GND
VS
OUT1
VREF
IN1
F01
R02
R01
LINE NF
LINE IN
REFERENCE
CURRENT
REFERENCE
CURRENT
RESET
BAND
PASS
FILTER
DET
17
RESET
18
F02
16
F03
15
F04
14
F05
13
F06
12
REC LEVEL
11
VCC
10
4
3
2
1
+
–
REC NF
REC IN
6
RESET C
7
BIAS C
8
GND
9
5
+
–
56
HCD-XGR88
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
SECTION 7
EXPLODED VIEWS
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
7-1. CASE, BACK PANEL SECTION
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Hardware (# mark) list and accessories are
given in the last of this parts list.
given in the last of this parts list.
•
Abbreviation
E2
E2
: Central and South America
E51
: Chilean and Peruvian
4
3
5
2
2
1
#3
#1
#1
not supplied
not supplied
not
supplied
Front panel section
Chassis section
M901
#1
a
a
#1
#2
#1
#1
#1
#1
#1
#1
#1
#1
1
4-948-236-01 CUSHION (107)
2
3-363-099-01 SCREW (CASE 3 TP2)
3
4-237-661-31 CASE
4
1-693-603-41 TUNER (FM/AM)
5
1-769-945-11 WIRE (FLAT TYPE) (11 CORE)
M901
1-763-072-11 FAN, DC
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S
#2
7-685-872-09 SCREW +BVTT 3X8 (S)
#3
7-685-871-01 SCREW +BVTT 3X6 (S)
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