Sony DPP-MS300 Service Manual ▷ View online
5-56
IC108
M5127FP-70AD
1
2
3
4
5
6
7
8
9
10 11 12 13
14
15
16
28 27 26 25
24
23
21
20
19
18
17
22
BGP
PGW
C OUT
C CNT
C IN
BYPC
ACCK
REFV
APC
VCXO
TIN
VCXI
GND
B-Y IN
NTSC
PAL
90
°
90
°
180
°
90
°
270
°
SYNCO
SLC
FBC
VIDEO
HD
BLK
KFC
KILF
R-Y OUT
B-Y OUT
R-Y IN
VCC
SC
NTSC/PAL
COMP
SYNC
SEPARATOR
COMP
BURST GATE
PULSE
2nd
AMPLIFIER
1st
AMPLIFIER
ACC
DETECTOR
BURST
GATE
APC
DETECTOR
TINTO
REFERENCE
VOLTAGE
ID PULSE
B-Y
DECODER
R-Y
DECODER
ID KILLER
DETECTOR
4FSC
VCXO
1/4
COMP
– DK-40 Board –
IC701
HD74LS244FPEL
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
1G
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
2A1
1Y4
2A2
1Y3
2A3
1Y2
2A4
1Y1
2G
Vcc
IC702
HD74LS374FP-EL
1
2
3
4
5
6
7
8
9
16
17
18
19
10
11
12
13
14
15
20
D
Q
EN
CK
D
Q
EN
CK
D
Q
EN
CK
D
Q
EN
CK
D
Q
EN
CK
D
Q
EN
CK
D
Q
EN
CK
D
Q
EN
CK
OC
1Q
2D
1D
3D
4D
4Q
VSS
2Q
3Q
8Q
7D
8D
6D
5D
5Q
CK
7Q
6Q
VDD
IC703
SN74HC74ANSR
14
1
2 3
4
5
6
7
13 12 11
10
9
8
VCC
GND
CK
CLR
CK
CLR
Q
PR
Q
Q
PR
Q
D
D
5-57
– MP-40 Board –
IC1531
SN74LVCC4245APWR
1
2
3
4
5
6
7
8
9
10
23
22
21
20
19
18
17
16
15
14
A1
VCCA
A2
A3
A4
A5
A6
OE
VCCB
B1
B2
B3
B4
B5
B6
B7
A7
11
12
GND
13 GND
GND
BO
24 VCCB
AO
T/R
IC1532 – 1534
74VHC244MTCX
IC1535
74VHCT244MTCX
– MD-40 Board –
IC1900
LB1644
20
19
18
17
16
15
14
13
12
11
1
2
3
4
5
6
7
8
9
10
1G
1A1
2Y4
1A2
2Y3
1A3
2Y2
1A4
2Y1
GND
2A1
1Y4
2A2
1Y3
2A3
1Y2
2A4
1Y1
2G
Vcc
1
2
3
6
7
9
10
11
8
14
13
15
16
V
Z
1
IN4
IN1
OUT4
OUT1
V
CC
2
GND
12
GND
V
CC
1
IN2
IN3
OUT2
5
GND
4
GND
OUT3
V
Z
2
INPUT LOGIC BLOCK
INPUT LOGIC BLOCK
PRE
DRIVER
PRE
DRIVER
TSD
5-58
– SW-40 Board –
IC1700
RTC-4543SBB-L2
IC1901
STA506A
IC1902
LM339NS-E20
SWITCH
SWITCH
SWITCH
SWITCH
1
2
3
4
5
6
7
8
9
10
1
2
4
3
5
6
7
14
13
11
2
10
9
8
1 OUT
2 OUT
2 IN–
2 IN+
1 IN–
1 IN+
VCC
3 OUT
4 OUT
4 IN+
4 IN–
3 IN+
3 IN–
GND
1
2
3
4
5
6
7
8
9
18
17
17
16
15
12
11
10
I/O CONTROLLER
CONTROL CIRCUIT
DEVIDER
VOLTAGE
DETECT
OUT PUT
CONTROLLER
OSC
NC
NC
NC
NC
NC
NC
14 VCC
13 NC
CLK
DATA
FOUT
NC
NC
NC
FOE
WR
FSEL
CE
GND
32.768kHz
SHIFT REGISTER
CLOCK AND CALENDER
5-59
5-24.
IC PIN FUNCTION DESCRIPTION
•
DK-40 BOARD IC407 F432301PGF (A/D, D/A CONVERTER, MEMORY BUS CONTROL)
Pin No.
Pin Name
I/O
Description
1
MDT15
I/O
Two-way data bus with the D-RAM (IC403) (upper 8 bit)
2
DGND
—
Ground terminal (logic system)
3
DVCC
—
Power supply terminal (+5V) (logic system)
4, 5
MAD11, MAD10
O
Address signal output terminal Not used (open)
6 to11
MAD9 to MAD4
O
Address signal output to the D-RAM (IC403)
12
DGND
—
Ground terminal (logic system)
13 to16
MAD3 to MAD0
O
Address signal output to the D-RAM (IC403)
17
DGND
—
Ground terminal (logic system)
18
DVCC
—
Power supply terminal (+5V) (logic system)
19
SC
O
Sub carrier output to the CXA1229AM (IC103)
20
SYCX
O
Composite sync signal output to the CXA1229AM (IC103)
21
DVCC
—
Power supply terminal (+5V) (logic system)
22
DGND
—
Ground terminal (logic system)
23
AGND
—
Ground terminal (D/A converter, analog system)
24
BIAS1
I/O
Bias control terminal of the D/A converter
25
COMP1
I/O
Comparator in/out terminal of the D/A converter
26
VREF1
I
Reference voltage (+3V) input terminal
Used for the D/A output level adjustment of luminance signal (Y signal)
Used for the D/A output level adjustment of luminance signal (Y signal)
27
IREF1
I/O
Reference current control terminal
28
AVCC
—
Power supply terminal (+5V) (D/A converter, analog system)
29
Y OUT
O
Analog Y signal output terminal (luminance signal output terminal)
30
AGND
—
Ground terminal (D/A converter, analog system)
31
BIAS2
I/O
Bias control terminal of the D/A converter
32
COMP2
I/O
Comparator in/out terminal of the D/A converter
33
VREF2
I
Reference voltage (+3V) input terminal
Used for the D/A output level adjustment of chroma signal
Used for the D/A output level adjustment of chroma signal
34
IREF2
I/O
Reference current control terminal
35
AVCC
—
Power supply terminal (+5V) (D/A converter, analog system)
36
U OUT
O
Analog U signal output terminal (B-Y color difference signal output terminal)
37
AGND
—
Ground terminal (D/A converter, analog system)
38
BIAS3
I/O
Bias control terminal of the D/A converter
39
COMP3
I/O
Comparator in/out terminal of the D/A converter
40
VREF3
I
Reference voltage (+3V) input terminal
Used for the D/A output level adjustment of chroma signal
Used for the D/A output level adjustment of chroma signal
41
IREF3
I/O
Reference current control terminal
42
AVCC
—
Power supply terminal (+5V) (D/A converter, analog system)
43
V OUT
O
Analog V signal output terminal (R-Y color difference signal output terminal)
44
DGND
—
Ground terminal (logic, digital system)
45
TI CHK
I
Test input terminal (normally: fixed at “L”)
46
LDX
I
Test input terminal (normally: fixed at “L”)
47
RESV
I
Reset signal input for the internal SG V “H”: reset Not used (fixed at “L”)
48
SYET
O
Sync selection signal output at external reading Not used (open)
49
EXET
O
Internal/external selection signal output terminal Not used (open)
50
CGEEX
O
EE, WR/READ select signal output to the video input circuit (IC101, 102) and Y/C separator
(IC105)
(IC105)
51
RESX
I
System reset signal input from the reset signal generator (IC501) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
Click on the first or last page to see other DPP-MS300 service manuals if exist.