Sony HCD-G2500 / HCD-XB20 / HCD-XB22 / LBT-G2500 / LBT-XB20 / LBT-XB22 Service Manual ▷ View online
HCD-G2500/XB20/XB22
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5-15. IC BLOCK DIAGRAMS
5-16. IC PIN FUNCTION DESCRIPTION
IC03 (MAIN BOARD) BA5941FP
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
I/O
O
O
O
O
O
O
O
O
—
O
—
I
I
—
—
I
I
—
I
I
I
I
I
I
I
I
I
I
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
—
O
O
O
O
Pin Name
POWER OUT
S. MUTE
TU. MUTE OUT
TUNED OUT
DBDF NORMAL
DBDF HIGH
SURROUND OUT
FLAT
—
FUNCTION TAPE
OUT
—
RESET
POWER DOWN IN
—
VSS
X'1
X'2
VDD1
K4
K3
K2
K1
K0
SPEANA IN 1
SPEANA IN 2
SPEANA IN 3
CXD 2508A SCOR
COUNT
REMOTE IN
1G
2G
3G
4G
5G
6G
7G
8G
9G
10G
11G
12G
13G
14G
15G
P1
VDD
P2
P3
P4
P5
IC601 LC866528A-5G83 (FRONT BOARD)
Description
Power on/off output
System mute output (ON at H)
Tuner mute output (ON at H)
Tuned output (ON at H)
DBDF normal output (ON at H)
DBDF high output (ON at H)
Surround output (ON at H)
Preset EQ flat output (ON at H)
Not used
Function tape selector output
Not used
Reset input
Power down in (AC on at H, AC off at L)
Not used
System Vss
X'tal oscillator 6.0 MHz
X'tal oscillator 6.0 MHz
System VDD 1
Key input 4
Key input 3
Key input 2
Key input 1
Key input 0
Spectrum analyzer 1
Spectrum analyzer 2
Spectrum analyzer 3
CXD 2508A SCOR input
CXD 2508A COUNT input
Remote in
FLD digital output 1
FLD digital output 2
FLD digital output 3
FLD digital output 4
FLD digital output 5
FLD digital output 6
FLD digital output 7
FLD digital output 8
FLD digital output 9
FLD digital output 10
FLD digital output 11
FLD digital output 12
FLD digital output 13
FLD digital output 14
FLD digital output 15
FLD segment output 1
FLD VDD
FLD segment output 2
FLD segment output 3
FLD segment output 4
FLD segment output 5
Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
—
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
I
—
—
—
—
I
I
I
I
I
I
I
—
I
I
I
I
—
—
O
O
—
—
O
—
O
O
O
O
O
O
I
O
Description
FLD VDD
FLD segment output 6
FLD segment output 7
FLD segment output 8
FLD segment output 9
FLD segment output 10
FLD segment output 11
FLD segment output 12
FLD segment output 13
FLD segment output 14
FLD segment output 15
FLD segment output 16
FLD segment output 17
FLD segment output 18
FLD segment output 19
FLD segment output 20
FLD segment output 21
Destination selector switch input
Not used
Not used
Not used
FLD VDD
FM stereo indicator input
CD Synchro start input
CXD 2508A SENS input
CXD 2508A FOK input
Changer mechanism UP switch input
Table sensor switch input
CD door switch input
Not used
VR encorder (+) input
VR encorder (–) input
CD encorder input A
CD encorder input B
Not used
Not used
BU2114 LATCH output
BU2092 LATCH output
System Vss 2
System VDD 2
SN74HC4094 STB output
LV1030 enable
LC7218, LC75392 STB output
CXD 2508 A XLAT output
CXD 2508 A out A output
SQSO output
SQCK clock output
Serial data output
Serial data input
Serial clock output
Pin Name
–VPP
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
MODE SW IN
—
—
—
VDD
FM ST IN
CD SYNCHRO IN
CXD2580A SENS
FOK
UP SWITCH
TABLE SENSOR
CD DOOR
SWITCH
—
VR +
VR –
CD ENCORDER IN A
CD ENCORDER IN B
—
—
BU2114 LATCH
BU2092 LOCK
LATCH
VSS2
VDD2
HC4094 STB
LV1030 ENABLE
7218, 75392 STB
CXD2508A XLAT
CXD2508A DATA
SQSO
SQCK,CLOK
SQ
SI
SCK
+
–
LEVEL SHIFT
+ –
+
–
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
LEVEL SHIFT
+ –
+
–
MUTE
+
–
+
–
LEVEL SHIFT
+ –
+
–
LEVEL SHIFT
+ –
+
–
+
–
15
16
17
18
19
21
20
22
26
25
24
23
+
–
NC
Vcc
Vcc
Vcc
VCC
BIAS IN
IN1B
IN1A
IN2B
IN2A
GND
GND
MUTE
VCC
OUT2A
OUT2B
OUT1A
OUT1B
IN4B
IN4A
IN3B
IN3A
OP OUT
OP IN (–)
OP IN (+)
GND
NC
VCC
OUT3A
OUT3B
OUT4A
OUT4B
IC01 (CD DECODER BOARD) CXA1782BQ
36
PHD2
PHD1
PHD
33
LD
32
RF M
31
RF O
30
RF I
29
CP
28
CB
27
CC1
26
CC2
25
FOK
24 SENS
23 C. OUT
22 XRST
21 DATA
20 XLT
19 CLK
18 VCC
17 ISET
16 SL 0
15 SL M
14 SL P
13
12
TA O
TA M
11
FSET
10
TG2
9
TGU
8
SRCH
7
FE M
6
FE O
5
FLB
4
FGD
3
FDFCT
2
FEI
1
FEO
48
VC
47
TDFCT
46
TZC
45
ATSC
44
TEI
43
LPFI
42
TEO
41
VEE
40
EI
39
E
38
F
37
FE BIAS
+
+
–
+
+
–
+
–
+
–
+
–
+
–
+
–
+
+
+
–
+
–
+
–
+
–
+
–
+
–
+
–
+
–
–
+
+
–
–
+
+
–
+
–
+
–
+
–
+
–
APC
–
–
–
–
LEVELS
FOK
MIRR
DFCT
RF IV AMP2
RF IV AMP1
FE AMP
F IV AMP
E IV AMP
TE AMP
FZC COMP
BAL1
BAL2
BAL3
TOG1
TOG2
TOG3
TTL
IIL
IIL
TTL
TTL
IIL
• IIL DATA RESISTOR
• INPUT SHIFT RESISTOR
• ADDRESS DECODER
• OUTPUT DECODER
HPF COMP
LPF COMP
TZC COMP
DFCT
DFCT
TM1
FS4
ATSC
• WINDOW COMP
• FCS PHASE
COMPENSATION
COMPENSATION
• TRACKING
• PHASE
COMPENSATION
COMPENSATION
• ISET
FS1
FS2
TM4
TM5
TM6
TM3
TM7
TG2
• F SET
TG1
TM2
+
–
TOG1-3
FS1-4
TG1-2
TM1-7
PS1-4
BAL1-3
35
34
1 2
3
4
5 6 7 8 9
10
16 15 14 13 12 11
CONTROL
CIRCUIT
12 BIT
SHIFT
REGISTER
12 BIT
STORAGE
REGISTER
OUTPUT
BUFFER
(OPEN DRAIN)
17
18
VDD
OE
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
LCK
CLOCK
DATA
VSS
IC602 (FRONT BOARD) BU2092
RF IN
1
2
3
4
5
6
7
8
9
BYPAS
GND
GND
MIX IN
IF
OSC
VCC
AFC
RF
VREF
MIX
REG
OSC
BUF
IC101 (MAIN BOARD) LA1186
IC102 (MAIN BOARD) LA1831
FM IF
REG
GND
VCC
FM DET
S-CURVE
TUNING
DRIVE
LEVEL
DET
AM/FM
IF BUFE
ALC
BUFFER
AM
OSC
AM
MIX
AM
RF AMP
AGC
AM DET
AM IF
COMP
FM
AM
MUTE
DECORDER
STEREO DRIVE
FF
TRIG
PHASE
DET
VCO
AM/FM
SW
PILOT
DET
STEREO SW
3
6
9
12
2
5
8
11
1
4
7
10
22
19
16
13
23
20
17
14
24
21
18
15
OSC/FMSD
OSC
AFC
AM RF
SMET
AM HPF
AF DET
MPX VCO
MPX IN
R OUT
L OUT
PL DET
FM IF
AM MIX
REG
AM IF
GND
TU LED
ST IND
FM DET
VCC
AM/FM
PH DET
PH DET
IC103 (MAIN BOARD) LC7218-ST
XIN
CE
DI
CL
DO
SYC
IN0
IN1
OUT0
OUT1
OUT2
OUT3
SHIFT REGISTER
LATCH
12 BIT
PROGRAMMABLE DIVIDER
SWALLOW COUNTER
1/16 . 1/17 BIT
REFERENCE
DIVIDER
PHASE DETECTOR
CHARGE PUMP
1 / 2
X OUT
VSS
PD2
PD1
PD1
VDD
FM IN
AM IN
OUT 6
HCTR
LCTR
OUT 5
OUT 4
UNIVERSAL
COUNTER
7
10
11
12
9
8
6
5
4
3
2
1
13
14
24
23
22
21
20
19
18
17
16
15
IC301 (CD DECODER BOARD) LC75392
+
–
3
6
9
12
15
2
5
8
11
14
1
4
7
10
13
28
25
22
19
16
29
26
23
20
17
30
27
24
21
18
+
–
+
–
–
+
–
–
LATCH
DECODER
CONTROL
SHIFT
REGISTER
–
+
LVROUT
LVRIN
LTOUT
LTCOM
LT4
LT3
LT2
LT1
L4
L3
L2
L1
VDD
CL
DI
RVROUT
RVRIN
RTOUT
RTCOM
RT4
RT3
RT2
RT1
R4
R3
R2
R1
VREF
VSS
CE
SECTION 6
EXPLODED VIEWS
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 and
packing materials are given in the last of this
parts list.
packing materials are given in the last of this
parts list.
•
Abbreviation
AUS : Australian
AUS : Australian
SP
: Singapore
MX
: Mexican
MY
: Malaysia
AR
: Argentine
The components identified by mark
!
or
dotted line with mark
!
are critical for safety.
Replace only with part number specified.
— 73 —
6-1. TOP COVER SECTION
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
1
4-211-479-01 COVER, TOP (G2500)
1
4-211-556-01 COVER, TOP (XB22,XB20)
* 2
4-211-482-01 PANEL, REAR (G2500)
* 2
4-211-559-01 PANEL, REAR (XB20)
* 2
4-211-574-01 PANEL, REAR (XB22:E,SP,MY,AR)
* 2
4-211-575-01 PANEL, REAR (XB22:MX)
* 2
4-211-577-01 PANEL, REAR (XB22:AUS)
1
2
#2
#2
#2
#3
#3
#4
#4
#4
#1
#1
#1
— 74 —
6-2. CD DOOR SECTION
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
* 51
1-670-947-11 JOG BOARD
52
4-211-523-01 BUTTON, EDIT (G2500)
52
4-211-570-01 BUTTON, EDIT (XB22,XB20)
53
4-211-522-01 PANEL, AMS (G2500)
53
4-211-569-01 PANEL, AMS (XB22,XB20)
54
4-211-481-01 KNOB, AMS (G2500)
54
4-211-558-01 KNOB, AMS (XB22,XB20)
* 55
1-670-945-11 DISC BOARD
56
4-211-525-01 BUTTON, DISC SELECT (G2500)
56
4-211-572-01 BUTTON, DISC SELECT (XB22,XB20)
57
4-211-524-01 PANEL, DISC (G2500)
57
4-211-571-01 PANEL, DISC (XB22,XB20)
58
4-211-527-01 WINDOW, CD
59
4-211-526-01 DOOR, CD (G2500)
59
4-211-573-01 DOOR, CD (XB22,XB20)
60
4-211-917-01 SPRING, CD EJECT
* 61
4-211-921-01 CHASSIS, CD DOOR
62
4-211-919-01 SHAFT, STOPPER
63
4-211-914-01 LENS, CD DOOR
* 64
1-670-950-11 LED BOARD (XB22:AUS,MX,G2500)
* 64
1-671-475-11 LED BOARD (XB22:E,SP,MY,AR,XB20)
* 65
1-670-946-11 PLAY SW BOARD
* 66
1-670-948-11 DOOR SW BOARD
68
4-211-915-01 STOPPER (R), CD DOOR
69
4-211-916-01 STOPPER (L), CD DOOR
70
4-211-920-01 DAMPER (PG-5), GEAR
#3
#3
#3
#3
#3
#3
#3
#3
#5
#5
not supplied
#5
#3
55
53
54
66
61
70
62
63
64
68
69
59
65
60
58
52
51
56
57
#3
#3
#6
#6
#6
#5
#6
Click on the first or last page to see other HCD-G2500 / HCD-XB20 / HCD-XB22 / LBT-G2500 / LBT-XB20 / LBT-XB22 service manuals if exist.