Sony SDM-N50PS Service Manual page 26

1 3
2
A
ab1
B
C
ab5
ab6
D
ab2
ab3
ab4
ab7
ab8
ab9
E
ab10
F
ab11
ab12
ab13
ab14
ab15
C132
0.1
25V
F
ab16
G
ab17
ab18
H
3.3V
ab19
ab20
5V
ab21
I
ab22
ab23
TH101
C111
R148
1k 0.1
25V
1/16W
F
J
ab24
Schematic diagram
Ò Ò Ò Ò Ò
A
-P1-a board
4 5 6
TO P2-a INPUT_SEL
TO P3-b GV_IFON
TO P2-a HS
P3-a
VS
POLH
EXITH
TO P2-a
POLV
EXITV
C128 C129
C103 C102 C104 C105
100p
0.1 22p 22p
100p 0.1
25V 50V
50V 50V 50V 25V
F CH
CH CH CH F
1 4
X101
3
2
4.9
P20/A16 PA4/CKOT
4.9 0
P21/A17 PA3
4.9 0
P22/A18 PA2
4.9
P23/A19 RSTX
0.6
P24/A20 PA1/OUT3
4.9
P25/A21 PA0/OUT2
0.3
P26/A22 P97/PPG5
4.9
4.9
P27/A23 P96/PPG4
0 0
P30/ALE P95/PPG3
4.9
P31/RDX P94/PPG2
4.9
VSS P93/PPG1
4.9
4.9
P32/WRLX P92/PPG0
4.9
P33/WRHX P91/OUT1
0
P34/HRQ P90/OUT0
IC101
P35/HAKX MB90F553APF-G-BND-AR1 P87/IN3 3.2
SYSTEM CONTROL
P36/RDY P86/IN2
2.3 0
P37/CLK P85/IN1
0
P40/SCK P84/IN0
4.9 0
P41/SOT P83/TOT1
0
P42/SIN P82/TOT0
4.9
P43/SCK1 P81/TIN1
0.3
0
P44/SOT1 P80/TIN0
VCC P77/IRQ7
0.3
P45/SIN1 P76/IRQ6
P46/ADTG P75/IRQ5
P47/SCK0 P74/IRQ4
0.6
3.5
C P73/IRQ3
4.9
4.5
P50/SDA0/SOT0 P72/IRQ2
4.7
4.5
P51/SCL0/SIN0 HSTX
4.6
0
P52/SDA1 MD2
R108
10k
1/16W
C107
100p 4.9 R107
50V 10k
CH
1/16W
C106
0.1
R147
25V
10k
F 1/16W
C130
0.1
25V
F
R144
1k
1/16W
R145
1k
1/16W
CPU_ST
TO P3-b
TO P3-a CH3_INTI
PVSYNC
TO P3-b
/CH_SENS
CH3_TEMP
Schematic diagram
4-11
A
-P1-b board
7 8 9
R124
22
1/16W
IC102
TC7S04FU(TE85R)
INV
IN B VCC
0
IN A
4.9
GND OUT
C127
0.1
25V
F
R125
R133
4.7k
100 1/16W
1/16W
STBY5V
C123 C124
0.01
0.1
25V 25V
IC105
F
MM1170BFB
WDT RESET R118
10k
4.9
1/16W
TC RST
1.5
R117 0
100 NC VS
0.7
1/16W 0
CK RCT
GND VCC
R119
1k
1/16W
R120
100
0.7
1/16W
D103
1SS355TE-17
2
C131 C126
0
0.1 0.1
25V 25V
F 1 F
D104
Q101
UDZ-TE-17-12B
DTC114EKA-T146
SW
IC109
TC7S08FU(TE85R)
AND
4.9
OUT GND
IN A
4.9
VCC IN B
4.9
R104
10k
1/16W
R146
10k
1/16W
R149
0
A
-P1-b
(SYSTEM CONTROL)
l l l l l
10
11 12
REFCLK
A8
/WRL
/RD
ALE
AD(2..7)
TO P3-a
CH3_RST
IC108
TC74HC4066AFT(EL)
SW
CH3_AD0
0
IO1 VCC
0 4.9
OI1 C1
0 4.9
OI2 C4
0 0
IO2 IO4 CH3_AD1
0 0
C2 OI4
0 0
C3 OI3
4.9
GND IO3
R143
R141
0 10k
1/16W
C120
0.1 25V F
H:FLASH WRITTER MODE
L:NORMAL MODE
C125
0.1
25V
B
F
• Divided circuit diagram
One sheet of A-P1 board circuit diagram is divided into two
sheets, each having the code A-P1-a to A-P1-b . For
example, the destination ab1 on the A-P1-a sheet is
connected to ab1 on the A-P1-b sheet.
a b 1
Ref. No.
Circuit diagram division code
RA101
CN108
100
10P
1 2
(WRITER)
3 4
1 TMODE
5 6
2 TAUX3
7 8
3 TVPP1
4 TRES
RA102
100
1 2
5 TAUX
3 4
6 TCK
5 6
7 RXD
7 8
8 TXD
9 GND
10 SUB5V
TO B BOARD
CN503
B-SS3534<AEP>-A-P1-b(24)
4-12