Sony HCD-GTX88 / HCD-GTX88BP Service Manual ▷ View online
77
HCD-GTX88/GTX88BP
IC900 MB90M407PF-G-151E1 (DISPLAY CONTROL, KEY CONTROL) (PANEL BOARD)
Pin No.
Pin Name
I/O
Pin Description
1 to 8
G16 to G23
O
Grid drive signal output to the vacuum fluorescent display
9, 10
P35, P36
O
Segment drive signal output to the vacuum fluorescent display
11
VSS-IO
—
Ground pin (for I/O port)
12 to 22
P34 to P24
O
Segment drive signal output to the vacuum fluorescent display
23
VDD-FIP
—
Power supply pin (+3.3 V) (for vacuum fluorescent display)
24 to 41
P23 to P6
O
Segment drive signal output to the vacuum fluorescent display
42
VSS-IO
—
Ground pin (for I/O port)
43 to 47
P5 to P1
O
Segment drive signal output to the vacuum fluorescent display
48
VKK
—
Power supply pin (+3.3 V) (for vacuum fluorescent display)
49 to 51
MD0 to MD2
I
Setting pin for the CPU operational mode
52
LED-VIDEO, USB
O
Dynamic LED drive signal output of the VIDEO and USB indicator (“H”: LED on)
53
LED-TAPE, AUDIO
O
Dynamic LED drive signal output of the TAPE and AUDIO indicator (“H”: LED on)
54
LED-CD, TUNER
O
Dynamic LED drive signal output of the CD and TUNER indicator (“H”: LED on)
55
LED-VOL1, 2
O
Dynamic LED drive signal output of the (VOL1) and (VOL2) indicator (“H”: LED on)
56
LED-VOL3, 4
O
Dynamic LED drive signal output of the VOL3 1st and VOL4 indicator (“H”: LED on)
57
LED-VOL5, 6
O
Dynamic LED drive signal output of the VOL5 3rd and VOL6 indicator (“H”: LED on)
58
LED-FF, FR
O
Dynamic LED drive signal output of the FF and FR indicator (“H”: LED on)
59
LED-REC/ERASE,
O
Dynamic LED drive signal output of the REC/ERASE and CD-USB SYNC/REC 1
CD-USB SYNC/REC 1
(“H”: LED on)
60
12C-DATA
I/O
Clock signal for IIC communication between Master Control controller and Display
Control controller
61
12C-CLOCK
I/O
Data signal for IIC communication between Master Control controller and Display
Control controller
62
AVCC
—
Power supply pin (+3.3 V) (for A/D conversion)
63
AVSS
—
Ground pin (for A/D conversion)
64 to 66
KEY0 to KEY2
I
Key input (A/D input)
67
ALL-BAND
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter
(A/D input)
68 to 71
BPF4 to BPF1
I
Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter
(A/D input)
72
ORERATION DIAL
I
Jog dial pulse input from ORERATION DIAL encoder
73
VOLUME
I
Jog dial pulse input from the VOLUME encoder
74
NO USE
—
Not used. (GND)
75
LED-STOP
O
Dynamic LED drive signal output of the STOP indicator (“H”: LED on)
76
LED-CD-TAPE SYNC,
O
Dynamic LED drive signal output of the CD-TAPE SYNC and TAPE REC PAUSE/
TAPE REC PAUSE/START
START indicator (“H”: LED on)
77
RESET
I
System reset signal input from the Master Control controller (“L”: reset)
78
LED-AMS +, AMS –
O
Dynamic LED drive signal output of AMS + and AMS – indicator (“H”: LED on)
Not used in this set.
79
LED-PLAY
O
Dynamic LED drive signal output of PLAY and PAUSE indicator (“H”: LED on)
80
LED selector
O
Dynamic LED drive select signal output
81
VSS-CPU
—
Ground pin (for CPU)
82
XO
O
System clock output (4 MHz)
83
XI
I
System clock input (4 MHz)
84
VCC-CPU
—
Power supply pin (+3.3 V) (for CPU)
85
NO USE
—
Not used. (GND)
86 to 100
G1 to 15
O
Grid drive signal output to the vacuum fluorescent display
78
HCD-GTX88/GTX88BP
SECTION 7
EXPLODED VIEWS
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Accessories are given in the last of this
parts list.
• Abbreviation
AR : Argentina model
AUS : Australian model
E2
AUS : Australian model
E2
: 120V AC area in E model
E51 : Chilean and Peruvian model
MX : Mexican model
MX : Mexican model
Ref. No.
Part No.
Description
Remark
7-1. MAIN SECTION
Ref. No.
Part No.
Description
Remark
1
1-823-718-11 WIRE (FLAT TYPE) (17 CORE)
2
A-1249-256-A EFFECTOR BOARD, COMPLETE
3
3-363-099-32 SCREW (CASE 3 TP2)
4
3-363-099-02 SCREW (CASE 3 TP2)
5
3-703-136-12 SCREW, TAPPING
6
3-077-331-21 +BV 3 (3-CR)
7
2-895-478-12 PANEL, LOADING (EXCEPT AUS)
7
2-895-478-42 PANEL, LOADING (AUS)
8
2-342-117-31 CASE (TOP)
9
1-828-956-11 WIRE (FLAT TYPE) (9 CORE)
10
3-378-109-12 CUSHION, SARANET
0 11
1-468-737-51 SWITCHING, POWER (EXCEPT AUS)
0 11
1-468-737-71 SWITCHING, POWER (AUS)
M891
1-763-372-11 FAN, DC
TU901
1-693-734-11 TUNER (FM/AM) (ANTENNA)
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#2
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
#3
7-685-648-79 SCREW +BVTP 3X12 TYPE2 IT-3
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.
M891
#1
#1
#1
#1
#1
#2
#2
#2
#2
#1
#1
#1
#1
#1
#3
#2
#3
not supplied
not supplied
not supplied
not supplied
not supplied
(PRIMARY board)
(PRIMARY board)
front panel section
chassis section
CD block section
TU901
7
8
9
5
6
10
11
5
1
2
3
4
4
3
#2
Ver. 1.1
79
HCD-GTX88/GTX88BP
7-2. FRONT PANEL SECTION (1)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
1-828-964-11 WIRE (FLAT TYPE) (11 CORE)
52
3-087-053-01 +BVTP 2.6 (3CR)
53
1-417-656-11 DECK, MECHA
54
A-1249-247-A MIC BOARD, COMPLETE
55
2-895-507-01 KNOB (MIC)
56
A-1249-249-A USB CONNECTOR BOARD, COMPLETE
not supplied
not supplied
52
52
52
55
52
52
52
53
54
51
56
Ver. 1.1
80
HCD-GTX88/GTX88BP
7-3. FRONT PANEL SECTION (2)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
101
3-087-053-01 +BVTP 2.6 (3CR)
102
1-828-992-11 WIRE (FLAT TYPE) (17 CORE)
103
A-1249-243-A PANEL BOARD, COMPLETE
104
A-1249-245-A FUNCTION BOARD, COMPLETE
105
1-829-032-11 WIRE (FLAT TYPE) (25 CORE)
106
4-231-824-01 CAM (A), HEART
107
4-231-836-01 SPRING (HEART CAM-A)
108
4-231-841-01 SPRING (HEART CAM-B)
109
4-231-825-01 CAM (B), HEART
110
4-224-104-11 DAMPER
111
2-897-474-01 SPRING (R)
112
2-895-503-01 HOLDER (TC-R)
113
2-895-505-11 ESCUTCHEON (TC-B)
114
2-895-504-11 ESCUTCHEON (TC-A)
115
2-897-473-01 SPRING (L)
116
2-895-502-01 HOLDER (TC-L)
117
2-669-613-01 SPRING, DETENT
118
2-895-494-01 REFLECTOR (VOLUME)
119
2-895-492-01 INDICATOR (JOG)
120
2-895-491-01 KNOB (JOG-P)
121
2-895-490-01 KNOB (VOLUME)
122
4-218-253-32 SCREW (M2.6), +BTTP
123
2-895-481-01 BUTTON (DISC)
124
2-895-479-01 ESCUTCHEON (CD)
ND900
1-519-947-11 VACUUM FLUORESCENT DISPLAY
not supplied
not supplied
(JOG board)
(JOG board)
not supplied
not supplied
supplied with S935
not supplied
not supplied
(CD SW board)
(CD SW board)
ND900
101
102
103
104
105
106
107
108
109
110
110
111
112
113
114
115
116
117
118
119
120
121
123
124
117
101
101
101
101
101
122
122
101
101
101
Click on the first or last page to see other HCD-GTX88 / HCD-GTX88BP service manuals if exist.