Sony XTL-75V Service Manual ▷ View online
33
– G Board –
IC403
IR3Y29B4
38
39 40 41 42 43
44
45
47
46
48
37
36
35
34
33
32
31
30
29
25
24 23 22
21
20
19
18 17
15
16
14
13
26
27
28
SYNC SEP
BGP GEN
WINDOW
PULSE GEN
γ
AMP
REG1
REG3
REG2
IDENT
KILLER
TRAP
AGC
HPF
COLOR
CLAMP
AGC AMP
AGC DET
AGC DET
PICTURE
INV
5
7
8
9
10
11
12
6
3
1
2
4
F/F
PAL SW
TINT
VCO
APC
PHASE
SHIFT
P
N
COMP
COMP
MATRIX
INT/EXT SW
γ
AMP
γ
AMP
INV
INV
VREF
DEMOD
R-Y G-Y B-Y
SYNC
IN
Y/C
Y/C
BGP
F/F
Y
R-Y
G-Y
B-Y
PAL
ON
P
N
N
P
CHROMA OUT
ACC FILTER
B-Y
R-Y
KILLER FILTER
BURST OUT
COLOR
COLOR
C IN
IDENT FILTER
VIDEO IN
CONTRAST
TRAP
PICTURE
AGC OUT
AGC FILTER
CLAMP
F ADJ
VCC1
G IN
R IN
B IN
SW
COMMON OUT
COMMON
AMPLITUDE
ADJUST
SYNC SEP
SYNC OUT
SYNC IN
FRP
SUB BRIGHT R
SUB BRIGHT B
BRIGHT
GAMMA 0
GAMMA 2
B DC DET
RGB AMPLITUED
ADJUST
COMMON
FRP
B OUT
VCC2
G DC DET
G OUT
R DC DET
R OUT
GND2
GND1
VCO OUT
APC FILTER
VCO IN
TINT
P
N P
N
34
6-17.
IC PIN FUNCTION DESCRIPTION
•
A BOARD IC110 MB89627RPF-G-642-BND (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
SDAI
I
Serial data input from the EEPROM (IC111)
2
SDAO
O
Serial data output to the EEPROM (IC111)
3
SCL
O
Shift clock signal output to the EEPROM (IC111)
4
M.MODE1
I
Mode signal (1) input terminal Not used (open)
5
M.MODE2
I
Mode signal (2) input terminal Not used (open)
6
M.MODE3
I
Mode signal (3) input terminal Not used (open)
7
W.MODE1
O
Monitor display selection control signal output to the liquid crystal display module
8
AD ACC
I
Accessory voltage detection signal input terminal (A/D input)
“L” is input at low voltage
“L” is input at low voltage
9
AD BAT
I
Battery voltage detection signal input terminal (A/D input)
“L” is input at low voltage
“L” is input at low voltage
10
W.MODE2
O
Monitor display selection control signal output to the liquid crystal display module
11
OPEN SEL
I
Model check signal input terminal
At the resetting, the signal at this terminal is read to check the model (fixed at “H”)
At the resetting, the signal at this terminal is read to check the model (fixed at “H”)
12
AVCC
—
Power supply terminal (+5V) (for A/D converter)
13
AVR
I
Reference voltage (+5V) input terminal (for A/D converter)
14
AVSS
—
Ground terminal (for A/D converter)
15
NC
—
Not used (open)
16
+B (SW) DET
I
Input terminal to detect the power supply (+12V) from the TV tuner unit
“H”: power present
“H”: power present
17
ACC CHK
I
Accessory detection signal input terminal “H”: accessory on
18
+BAT MIN DET
—
Not used (open)
19
PICTURE
OFF IN
I
Picture off control signal input from the TV tuner unit
20
XRESET
I
System reset signal input from the TV tuner unit, reset signal generator (IC108) and reset switch
(S702)
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
(S702)
“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
21
MOD 0
I
Setting terminal for the CPU operational mode (fixed at “H” in this set)
22
MOD 1
I
Setting terminal for the CPU operational mode (fixed at “H” in this set)
23
X0
I
Main system clock input terminal (10 MHz)
24
X1
O
Main system clock output terminal (10 MHz)
25
VSS
—
Ground terminal
26 to 28
LED 1 to LED 3
O
LED drive signal output terminal “H”: LED on Not used (fixed at “L”)
29
LED 4
O
LED drive signal output of the V OFF (D711) indicator “H”: LED on
30
POWER CNTL
O
Power supply (+9V) on/off control signal output of the sensor circuit/motor circuit/panel block
“H”: power on
“H”: power on
31
BEEP OUT
O
Beep sound drive signal output terminal
32
POWER SW
O
Power supply on/off control signal output to the TV tuner unit “H”: power on
33
PICTURE OFF
O
“H” is output to TL1453CPWR (IC501) in power circuit by the signal input to pin ql to turn off
the picture
the picture
34 to 37
KO 3 to KO 0
O
Key send signal output to the key matrix
38 to 41
KI 3 to KI 0
I
Key return signal input from the key matrix
42
HSEN 0
I
Set back detect switch (S32) input terminal
“L” is input when monitor base is housed completely “H” is input at other position
“L” is input when monitor base is housed completely “H” is input at other position
43
HSEN 1
I
Push out detect switch (S31) input terminal
“L” is input when monitor base comes out to the front (“L” is also input during watching of
picture)
“L” is input when monitor base comes out to the front (“L” is also input during watching of
picture)
35
Pin No.
Pin Name
I/O
Description
44
HSEN 2
I
Slide motor (M21) rotation sensor input terminal
This is also used for monitor horizontal position adjustment
This is also used for monitor horizontal position adjustment
45
NC
—
Not used (open)
46
VSEN 0
I
Monitor close detect switch (S102) input terminal
“L” is input when monitor falls down completely, “H” is input at other position
“L” is input when monitor falls down completely, “H” is input at other position
47
VSEN 1
I
Monitor open detect switch (S11) input terminal
“L” is input when monitor rises up completely, “H” is input at other position
“L” is input when monitor rises up completely, “H” is input at other position
48
VSEN 2
I
Angle motor (M11) rotation sensor input terminal
This is also used for monitor tilt angle adjustment
This is also used for monitor tilt angle adjustment
49
PARKING
I
Parking brake sensor input terminal
“L” is input during parking, “H” is input during running
“L” is input during parking, “H” is input during running
50
VSS
—
Ground terminal
51
S.MUTE
O
Power on muting control signal output to the power amplifier (IC105) “H”: muting on
52
LED A/G
O
Selection signal output of the LED illumination “L”: amber, “H”: green
53
LED BRIGHT
O
LED drive signal output of the –, +, SEARCH –, SEARCH +, ANGLE SLIDE, OFF, DSPL,
SELECT, V ADJ, VOLUME +/– (D721 to 725, LSW704, 706, 709 to 717) indicators
“L”: LED on
SELECT, V ADJ, VOLUME +/– (D721 to 725, LSW704, 706, 709 to 717) indicators
“L”: LED on
54
SIRCS
O
Sircs remote control signal input from the remote control receiver (IC701)
55
MASTER
I
Control signal input terminal Not used (open)
56
AV SW
I
Control signal input terminal Not used (open)
57
VCC
—
Power supply terminal (+5V)
58
BUS SW
O
LED drive signal output of the TV/VIDEO (D719, LSW708) indicators “L”: LED on
59
RF CONT
O
Not used (open)
60
H.MO 0
O
Slide motor (M21) drive signal output “L” active
61
H.MO 1
O
Slide motor (M21) drive signal output “L” active
62
V.MO 0
O
Angle motor (M11) drive signal output “L” active
63
V.MO 1
O
Angle motor (M11) drive signal output “L” active
64
REM SEL
O
Signal is output to select sircs remote control signal output from remote control receiver (IC701)
and SIRCS (pin tf)
“L”: Signal from IC701, “H”: Signal from SIRCS (pin tf)
and SIRCS (pin tf)
“L”: Signal from IC701, “H”: Signal from SIRCS (pin tf)
36
(1)
GENERAL SECTION
SECTION 7
EXPLODED VIEWS
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Accessories and packing materials are given
in the last of the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
9
10
9
9
12
11
9
10
9
9
9
8
1
7
1
6
5
13
1
14
1
2
1
1
1
3
4
Front panel section
F704
1
4-931-871-01 SCREW (M2X3)
* 2
1-670-608-12 C BOARD
* 3
3-027-951-02 KNOB (L), SLIDER
* 4
3-027-946-01 PLATE, SIDE
* 5
3-032-376-01 SHEET, COPPER LEAF
* 6
3-027-948-01 COVER
* 7
3-027-957-11 FRAME, FRONT
* 8
3-033-754-01 SHEET (UPPER CASE)
9
7-621-773-86 SCREW +B 2.6X4
* 10
3-027-945-01 BRACKET, CAR MOUNT
* 11
3-027-944-01 CHASSIS (UPPER)
* 12
3-027-962-01 CUSHION (MONITOR STOPPER)
13
1-783-609-21 CORD (WITH CONNECTOR) 10P (POWER)
* 14
3-027-950-02 KNOB (R), SLIDER
F704
1-532-796-11 FUSE (BLADE TYPE) (AUTO FUSE) (5A)
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