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Model
SDM-N50 (serv.man2)
Pages
62
Size
4.38 MB
Type
PDF
Document
Service Manual
Brand
Device
Monitor / S/M SDM-N50 00 US CAN
File
sdm-n50-sm2.pdf
Date
PREV: Sony SDM-N50 Service Manual

Sony SDM-N50 (serv.man2) Service Manual ▷ View online

SDM-N50
SECTION  3
ADJUSTMENTS
3-1
Connect the personal computer, monitor, and signal generator as shown below, and control the monitor.
•
Preset mode adjustment
Confirm the screen by below three kinds of the modes
within preseted frequency.
Signal mode
1.
MODE  0 (640X480 60Hz)
2.
MODE 10 (800X600 75Hz)
3.
MODE 17 (1024X768 75Hz)
(1) Input a cross hatch signal.
(2) Confirm both edges can see or white lines of edges are not
separating from indicated area edges.
Errors in the range of 2dot are permit.
Be saticefy one of both edges that is within above
specification.
•
White balance adjustment
When no measuring instrument is used, compare the color
with the reference set so that the colors will be the same.
1.
Adjustment of 9300
°
K
(1) Confirm every R/G/B_USER_BKG are initialized value.
(2) Receive MODE 15 (1024X768 60Hz) 80IRE.
Set COLOR to 9300
°
K. (COLOR_INDEX=1)
(3) Make adjustment with R/G_USR_DRV to set the
chromaticity within the specification.
y adjustment ..... Make adjustment with B_USR_DRV.
(Also x value changes simultaneous)
B_USR_DRV  UP
Values x and y decrease.
B_USR_DRV  DOWN
Values x and y increase.
x adjustment ..... Make adjustment with R_USR_DRV.
R_USR_DRV  UP
Value y increases.
R_USR_DRV  DOWN
Value y decreases.
Adjust again and bring down G_USR_DRV 10 STEP to
become within the specification ; however, in case of
adjustment range of y value become deficientlly and when
B_USR_DRV=255.
(4) Make the signal 30IRE all white to check that it is within the
specification.
(5) Adjust R/B_USER_BKG to become within the specification
when (4) deviates the specification.
(6) Input a grayscale and perform picture quality confirmation.
(7) Perform color save ( select C with ALT+M ).
Spec: 9300
°
K  80IRE (x, y) = (0.285, 0.294)
Within 3JND
9300
°
K  30IRE (x, y) = (0.265, 0.268)
Within 4JND
Note: Make adjustment up to 
±
0.002.
2.
Adjustment of 6500
°
K
(1) Confirm every R/G/B_USER_BKG are initialized value.
(2) Receive MODE 15 (1024X768 60Hz) 80IRE.
Set COLOR to 6500
°
K.  (COLOR_INDEX=2)
(3) Make adjustment with R/G_USR_DRV to set the chromaticity
within the specification.
y adjustment ..... Make adjustment with B_USR_DRV.
(Also x value changes simultaneous)
B_USR_DRV  UP
Values x and y decrease.
B_USR_DRV  DOWN
Values x and y increase.
x adjustment ..... Make adjustment with R_USR_DRV.
R_USR_DRV  UP
Value y increases.
R_USR_DRV  DOWN
Value y decreases.
Adjust again and bring down G_USR_DRV 10 STEP to
become within the specification ; however, in case of
adjustment range of y value become deficientlly and when
B_USR_DRV=255.
(4) Make the signal 30IRE all white to check that it is within the
specification.
(5) Adjust R/B_USER_BKG to become within the specification
when (4) deviates the specification.
(6) Input a grayscale and perform picture quality confirmation.
(7) Perform color save ( select C with ALT+M ).
Spec: 6500
°
K  80IRE (x, y) = (0.314, 0.324)
Within 3JND
6500
°
K  30IRE (x, y) = (0.295, 0.305)
Within 4JND
Note: Make adjustment up to 
±
0.002.
* Maintain the Aging mode for  over 30 minutes.
Computer for jig
Signal generator
(VG-823, etc.)
TO
INPUT-1
TO CN107 CONNECTOR (A Board)
SDM-N50
3-2
3.
Adjustment of 5000
°
K
(1) Confirm every R/G/B_USER_BKG are initialized value.
(2) Receive MODE 15 (1024X768 60Hz) 80IRE.
Set COLOR to 5000
°
K. (COLOR_INDEX=3)
(3) Make adjustment with R/G_USR_DRV to set the chromaticity
within the specification.
y adjustment ..... Make adjustment with B_USR_DRV.
(Also x value changes simultaneous)
B_USR_DRV  UP
Values x and y decrease.
B_USR_DRV  DOWN
Values x and y increase.
x adjustment ..... Make adjustment with R_USR_DRV.
R_USR_DRV  UP
Value y increases.
R_USR_DRV  DOWN
Value y decreases.
Adjust again and bring down G_USR_DRV 10 STEP to
become within the specification ; however, in case of
adjustment range of y value become deficientlly and when
B_USR_DRV=255.
(4) Make the signal 30IRE all white to check that it is within the
specification.
(5) Adjust R/B_USER_BKG to become within the specification
when (4) deviates the specification.
(6) Input a grayscale and perform picture quality confirmation.
(7) Perform color save ( select C with ALT+M ).
Spec: 5000
°
K  80IRE (x, y) = (0.345, 0.352)
Within 3JND
5000
°
K  30IRE (x, y) = (0.322, 0.332)
Within 4JND
Note: Make adjustment up to 
±
0.002.position.
4-1
4-2
SECTION  4
DIAGRAMS
4-1. BLOCK  DIAGRAMS
CN104
3.3V
3.3V
GND
GND
5V(STBY)
5V(STBY)
GND
GND
DD ON
9
8
7
6
5
4
3
2
1
A
TO
G BOARD
CN702
13
16
11
25
19
13
1
11
3
9
3
2
5
12
13
11
18
15
17
16
5
6
7
1
240
236
7
6
5
3
2
1
2
3
12
2
10
4
1
11
13
9
12
8
13
6
4
8
10
12
5
9
8
166
167
164
169
170
168
172
174
171
178
179
175
181
182
180
18
20
19
16
17
15
14
35
36
16
17
15
18
20
19
14
35
36
12
11
13
5
6
233
234
4
2
2
1
69
75
30
31
32
33
5
7
6
70 68 67
72
53
21 22
8
7
64 63 59
10 29 12 48
9
93 92 91 90 89 88 87 86 85 17
10
9
2
3
65
73
29
30
47
54
78
77
52
76
19
20
18
49
51
11
8
1
13
12
4
5
6
5
7
6
2
3
11
10
15
22
7
30
29
30
27
35
5
7
2
161
86
90
87
88
40
41
42
43
26
31
30
3
8
6
A0
A9
32
21
B0
B5
46
5
2.
47
.
31
36
12
2
122
114
LCD R0
S DATA P
S DATA N
CE
LCD R5
RA D0
RA D7
D RA0
D RA7
D GA0
D GA7
D BA0
D BA7
GA D0
GA D7
BA D0
BA D7
LCD G0
LCD G5
LCD B0
LCD B5
PDE
PSHIFT CLK
PH SYNC
PV SYNC
SD DATA(0)
SD DATA(7)
SD DATA(8)
SD DATA(15)
CAS
WE
RAS
LDQM
WDQM
CLK
CAS
WE
RAS
LD QM
LCD QM
CLK
SDADDR(0)
SDADDR(12)
SD CAS
SDWE
SD RAS
SDDQM
MEM CLK OUT
49
39
131
123
103
92
DQ8
DQ15
DQ0
DQ7
DQ0
DQ7
12
2
SD DATA(16)
SD DATA(24)
SD DATA(23)
140
132
SD DATA(31)
149
142
49
39 DQ8
IN3
2
CH3 AD1
CH3 AD0
OUT3
4
OUT4
OUT1
C1
C4
OUT2
C2
C3
RCT
IN4
IN1
IN2
CK
RST
CH3 AD0,CH3 AD1
DQ15
32
21 A0
A9
G0
G5
DE
SFT CLK
H SYNC
V SYNC
8
15
.
14
.
11
40
46
.
45
.
43
R0
R5
FL303
5V SW
Q302
12V SW
Q301,303
STBY +5V
SUB SCL
SUB SDA
49
55
52
.
50
.
106
108
109
112
107
CN101
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
SDT P
SDT GND
SDT N
GND
SCL
SDA
CPU ST
CN SENS
AUDIO L
AUDIO GND
AUDIO R
STBY 5V
12V
12V
12V
GND
GND
GND
AUDIO 12V
AUDIO 12V
CN105
1
2
3
4
5
6
7
8
12V
12V
12V
12V
GND
GND
GND
GND
CN108
10
9
8
7
6
5
4
3
2
1
SUB 5V
GND
TXD
RXD
TCK
TAUX
TRES
TVPP1
TAUX3
T MODE
CN106
1
2
3
4
AUDIO R
AUDIO GND
AUDIO L
AUDIO GND
CN107
1
2
3
4
5
6
TXD
RXD
GND
GND
GND
5V
A 
RGB PROCESS, SCAN CONVERTER, GV IF TRANSMITTER
SYSTEM CONTROL 
IC205
VIDEO SW
IN1(R)
IN1(G)
IN1(B)
R IN
IC214
A/D CONVERT
IC209(1/2)
INVERTER
G IN
B IN
5A
HS
A 3.3V
VCC
HS
VS
6A
4A
SDA
SCL
5Y
5V
OUT
6Y
4Y
R
G
B
IC301
SCAN CONVERTER
IC304
GV IF TRANSMITTER
PANEL CLK
REF CLK
MC AD(0)
MC AD(8)
MC ALE
SDDT0 - 7
SDDT8 - 15
SDA12
SD CAS
IC303
SD RAM
IC302   SD RAM
SD WE
SD RAS
SDD QM
SD CAS
SD WE
SD RAS
SDD QM
MEM CLK OUT
MEM CLK OUT
SDA11
SDA10
SDA12
CS
BVA
A10/AP
SDA11
SDA10
SDA0 - 9
SDA0 - 9
SDAD0 - 12
SDDT16 - 23
SDDT24 - 31
CS
BA
AIO/AP
MC INT
MC WR
RESET
MC RD
AH SYNC R
4A
IC211
BUFF
IC210(2/2)
H
12
11
13
IC210(1/2)
1
3
2
IC203
IC209(2/2)
1
5
4
6
2
V
H
4G
2A
2G
1A
1G
2A
IC212
IC109
IC103
EEP ROM
IC101
SYSTEM CONTROL
5V(STBY)
D101
POWER
2B
1A
1B
1
4
2
2OE
4Y
2Y
1Y
12
11
13
9
8
10
5
6
4
4A
IC215
BUFF
4G
3A
3G
2A
2G
4Y
3Y
2Y
1OE
WC
SCL
SDA
HS
VS
AV SYNC
AH SYNC S
CAP CLK1
236
240
AH SYNC S
CAP CLK1
115
117
DATA CK
HS OUT
41
COAST
40
H SYNC
28
CLAMP
/RD
SDA
LED UMBER
SER11
SER12
INPUT SEL
POL H
EXIT H
EXIT V
POL V
DD ON
V CLK
IC106
EEP ROM
SW
Q102,103
VIDEO
CLAMP
6A
HS1
15
12
14
13
3
2
1
DDC2 SCL
DDC2 SDA
VS2
HS2
15
12
14
13
DDC1 SCL
DDC1 SDA
VS1
HS1
3
BLUE1
2
GREEN1
1
CN102
INPUT 1
CN103
INPUT 2
RED1
BLUE2
GREEN2
RED2
VS1
HS2
DDC2 V CLK
DDC1 V CLK
VS2
IC208
INVERTER
IC207
SYNC SELECT
HS1
VS1
HS2
VS2
SCL
SDA
6Y
1A
1Y
5A
5Y
2A
2Y
1A
1Y
1G
4A
4Y
4G
2A
2Y
2G
3A
3Y
3G
4A
4Y
H DRV
V DRV
POLH
INEXIH
EXIV
INPOLV
SOG
HS
VS
C/H SYNC
V SYNC
3.3V
5V
IC206
SYNC DETECTOR
BUFF
Q201
IC216
3.3V REC
IC107
EEP ROM
SDA
SCL
VCLK
SDA
SCL
DDC1 VCLK
DDM1 SDA
DDC1 SCL
DDC2 VCLK
DDC2 SDA
DDC2 SCL
SDA1
SCL1
SDA2
SCL2
IRQ2
LED GREEN
SCL
WC
VS
VS
HS
RDX
PA3
WRLX
IRQ1
ALE
AD08
AD00
CLK
PV SYNC
GN IF ON
SUB SCL
SUB SDA
CPU ST
CH SENS
CK
RSTX
HSTX
SOT
SIN
SCK
MD2
MD0
RCT
CH3 RST
/WRL
CH3 INT1
ALE
A8
AD7
AD6
AD5
AD4
AD3
AD2
REF CLK
IC108  SW
IC102
IC105   WDT RESET
SW
Q101
OUT
REF CLK
CH3 AD0
CH3 AD1
AD2
AD3
AD4
AD5
AD6
AD7
A8
ALE
CH3 INT1
/WRL
CH3 RST
/RD
X301
IN2(R)
IN2(G)
IN2(B)
OUT(R)
OUT(G)
OUT(B)
OUT(SOG)
SW
(
)
13
6
21
14
29
22
112
105
92
85
65
72
18
23
ECS
E
TO
B BOARD
CN503
D
TO
G BOARD
CN701
C
TO
G BOARD
CN705
B
TO
U BOARD
CN401
B-SS3514<J>-A-24
1
3
4-3
4-4
CN504
GND
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
12V
12V
12V
12V
12V
12V
5V
5V
DD ON U
HP STAT
MUTE
CS N
SI
SCK
CPU ST
SCL
SDA
8
1
CN503
1
2
3
4
5
6
7
8
9
10
T MODE
T AUX3
TVPP1
TRES
T AUX
TCK
RXD
TXD
GND
SUB 5V
TO
A BOARD
CN108
E
CN505
1
GND
LCD PANEL
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
51
52
53
54
55
56
57
58
59
60
RA0
RA1
RA2
RA3
RA4
RA5
GND
GA0
GA1
GA2
GA3
GA4
GA5
GND
BA0
BA1
BA2
BA3
BA4
BA5
GND
GND
GND
GND
GND
LCD DE
GND
GND
GND
LCD CLK
GND
GND
GND
NC
5V
5V
5V
5V
R0
R1
R2
R3
R4
R5
G0
G1
G2
G3
G4
G5
B0
B1
B2
B3
B4
B5
CN501
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
REMOTE
5V(STBY)
KEY
INPUT KEY
PW KEY
PW LED1
PW LED2
IN LED1
IN LED2
5V(SENS)
GND
SEN1
SEN2
SEN3
SEN4
LED CTL
V REF
GND
CN507
3
2
1
HOT
NC
GND
CN508
3
2
1 
HOT
NC
GND
KEY
INPUT KEY
PW KEY
PW LED1
PW LED2
IN LED1
IN LED2
SEN1
CK
IC503  WDT  RESET
FL602
FL601
RST
SEN2
             LED CTL
V REF
CKOT
STBY 5V
12V
5V(SENS)
IC501
SUB SYSTEM CONTROL
5V SW
Q602
HP STAT
80
5
MUTE
8
CSN
7
SOT1
22
SCK1
RCT
21
46
DD ON3
SFT CLK
DE
CE
79
DD ON2 75
CE 38
55
47
1
2
3
4
44
45
X1
X0
I SENS
12V
T651
1
4
3
6
7
83
71
6
CPU ST
48
MD0
49
MD2
51
TAUX
85
SCK
18
SIN
20
SOT
19
PWM
69
RSTX
77
CK
78
HSTX
52
SDA0
29
SCL0
28
RCT
76
6
3
38
5
2
3
6
7
3
1
2
82
43
R0
G0
R0 - R5
G0 - G5
B0 - B5
G5
B0
B5
REFRQP
IC601
GV IF RECEIVER
DD ON3
IC603
DC-DC
IC604
CONTROL
SW
Q601
IC602  +3.3V REG
V+
OUT
3/5
D
IN
VCC
(IC601)
DD ON2
SHDN
G
OUT
CTL
S
CS
EXT
SDATAP
SDATAN
REFRQN
R5
1
8
22
31
.
30
25
62
5
63
10
15
50
51
CN502
3
2
1
SDT P
SDT GND
SDT N
TO
U BOARD
CN406
F
TO
U BOARD
CN402
G
40
39
41
42
T652
X501
INV.
Q651
SW
Q652
INVERTER
Q653
INVERTER
Q654
IC651(1/2)
2
3
1
1
4
3
2
5
6
7
-
+
IC651(2/2)
5V(SENSE)
5
6
7
+
-
SW
Q501
TO
H BOARD
CN901
H
TO LAMP
B 
GV IF RECEIVER
SUB SYSTEM CONTROL,INVERTER 
(
)
B-SS3514<J>-B-24
CN704
T701
AC IN
POWER
MAIN
RECT
D701
IC701
PWM CONTROL
SWITCHING
Q701
9
13
4
1
2
5
6
7
D702
T702
D705
1
2
K
A
R
3
4
PH701 ISOLATOR
IC702
IC706  +5V,+3.3V REG
IC707 CONTROL
+12V
+5V
+3.3V
IC704 CONTROL
AUDIO
IN
CN706
V IN
00B
V CTR L
GND
GND
DH3
DL3
D B1
D B2
D B1
D B2
CSL3
D A1
D A2
G A
G B
GA
GB
D A1
D A2
SHDN
CSL5
RUN/ON3
DH5
DL5
DRIVER
I SENSE
V AUX
DS
DEM
1
2
3
AC L OUT
NC
AC L IN
CN703
1
2
3
AC L
NC
AC N
1
14
9
3
11
5
4
6
7
13
BUFF
Q770
BUFF
Q771
3
2
1
2
23
13
28
F701
CN701
1
2
3
4
5
6
GND
GND
GND
GND
7
12V
12V
12V
12V
8
1
CN705
AUDIO R
2
AUDIO GND
3
AUDIO L
4
AUDIO GND
CN702
9
8
7
6
5
4
3.3V
3.3V
5V
5V
3
GND
GND
GND
2
1
GND
DD ON
G 
    ( POWER SUPPLY,AUDIO IN )
D
TO
A BOARD
CN105
A
TO
A BOARD
CN104
C
TO
A BOARD
CN106
B-SS3514<J>-G-24
IC790
BUFFER
-IN2
-IN1
OUT2
OUT1
2
6
1
7
CN901
9
8
7
6
5
4
5V(SENS)
GND
SEN3
SEN4
3
LED CTL
SEN2
SEN1
2
V REF
1
GND
18
17
16
15
14
13
REMOTE
5V(STBY)
PW KEY
PW LED1
12
PW LED2
INPUT KEY
KEY
11
IN LED1
10
IN LED2
D901
S901
POWER
S906
INPUT
OUT
VCC
D930
S902-905,907
D902
D903
IC902(4/4)
IC902(3/4)
IC902(2/4)
IC902(1/4)
5V(STBY)
IC901
SENSOR
14
13
12
8
10
9
7
6
5
1
3
+
+
-
+
-
-
+
-
2
SW
Q904
5V(SENS)
1
AMP
Q904
SW
Q903
SW
Q904
4
D931
H
TO
B BOARD
CN501
H 
    ( USER CONTROL )
B-SS3514<J>-H-24
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