Sony CPD-L181 Service Manual ▷ View online
CPD-L181
2-5. LAMP UNIT REMOVAL
2-3
2
Five screws
(3 x 4)
(3 x 4)
3
Four screws
(2.6 x 16)
(2.6 x 16)
7
Two screws
(3 x 4)
(3 x 4)
9
Two screw
(3 x 4)
(3 x 4)
12
Two hooks
12
Two hooks
11
Two claws
11
Two claws
13
Lamp unit
Lamp unit base
13
Lamp unit
5
Two screws
(3 x 3)
(3 x 3)
6
Flexible
board
board
8
Lamp unit base
* Confirm the connecter's side
* Confirm the connecter's side
to not be come reverse
when install.
when install.
10
Lamp unit base
* Confirm the connecter's side to
* Confirm the connecter's side to
not be come reverse when install.
4
A
A
B
A
Rear cover
1
Bend 10 parts
CN2
CN9
CN3
CN4
Liquid cristal panel module
Cushion
CPD-L181
SECTION 3
ADJUSTMENTS
3-1
Connect the personal computer, monitor, and signal generator as shown below, and control the monitor.
•
Adjustment of screen position
1.
Adjustment with expansion signal (below XGA)
(1) Input a cross hatch signal of VGA 640
×
480, fv: 60 Hz, and
fh: 31.5 kHz.
(2) Set ZOOM to Full-2.
(3) Set PHASE to 20.
(4) Adjust IN_OFFSET_H to bring the screen to an appropriate
(3) Set PHASE to 20.
(4) Adjust IN_OFFSET_H to bring the screen to an appropriate
position.
(5) Write the adjusted IN_OFFSET_H value into LOW_MEAS.
(Input “IN_OFFSET_H” of UMT to “LOW_MEAS” of SC
TABLE, and conduct service save ( Select S with ALT + M ).
TABLE, and conduct service save ( Select S with ALT + M ).
(6) Input a cross hatch signal of XGA 1024
×
768, fv: 85 Hz,
and fh: 68.7 kHz.
(7) Set ZOOM to Full-2.
(8) Set PHASE to 20.
(9) Adjust IN_OFFSET_H to bring the screen to an appropriate
(8) Set PHASE to 20.
(9) Adjust IN_OFFSET_H to bring the screen to an appropriate
position.
(10)Write the adjusted IN_OFFSET_H value into HIGH_MEAS.
(Input “IN_OFFSET_H” of UMT to “HI_MEAS” of SC TABLE,
and conduct service save ( Select S with ALT + M ).
and conduct service save ( Select S with ALT + M ).
2.
Adjustment with same size signal (SXGA)
(1) Input a cross hatch signal of SXGA 1280
×
1024, fv: 60 Hz,
and fh: 63.98 kHz.
(2) Set ZOOM to Full-2.
(3) Set PHASE to 20.
(4) Adjust IN_OFFSET_H to bring the screen to an appropriate
(3) Set PHASE to 20.
(4) Adjust IN_OFFSET_H to bring the screen to an appropriate
position.
(5) Write the adjusted IN_OFFSET_H value into SXGA1_MEAS.
(Input “IN_OFFSET_H” of UMT to “SXGA1_MEAS” of SC
TABLE, and conduct service save ( Select S with ALT + M ).
TABLE, and conduct service save ( Select S with ALT + M ).
(6) Input a cross hatch signal of SXGA 1280
×
1024, fv: 85 Hz,
and fh: 91.15 kHz.
(7) Set ZOOM to Full-2.
(8) Set PHASE to 20.
(9) Adjust IN_OFFSET_H to bring the screen to an appropriate
(8) Set PHASE to 20.
(9) Adjust IN_OFFSET_H to bring the screen to an appropriate
position.
(10)Write the adjusted IN_OFFSET_H value into SXGA2_MEAS.
(Input “IN_OFFSET_H” of UMT to “SXGA2_MEAS” of SC
TABLE, and conduct service save ( Select S with ALT + M ).
TABLE, and conduct service save ( Select S with ALT + M ).
(11)Get out of the adjustment mode.
Note: “Appropriate” means that vertical lines at both edges are
uniform. If impossible, select the adjustment value with
which the left vertical line becomes thicker.
which the left vertical line becomes thicker.
* Maintain the Aging mode for 30 to 60 minutes.
Computer for jig
Signal generator
(VG-819, etc.)
(VG-819, etc.)
TO INPUT-1
TO REMOTE
The left edge is not shown.
The right edge is not shown.
CPD-L181
3-2
•
Adjustment of factory preset mode
Repeat the following operations as many times as the num-
ber of preset frequency sets.
ber of preset frequency sets.
(1) Input the signal that is to be confirmed.
(2) Set ZOOM to Full-1.
(3) Check that H_CENTER is appropriate.
(4) Check that V_CENTER is appropriate.
(5) Check that PITCH is appropriate.
(6) Check that PHASE is appropriate.
(7) If not, make adjustment and save the adjusted data.
(2) Set ZOOM to Full-1.
(3) Check that H_CENTER is appropriate.
(4) Check that V_CENTER is appropriate.
(5) Check that PITCH is appropriate.
(6) Check that PHASE is appropriate.
(7) If not, make adjustment and save the adjusted data.
•
Adjustment of white balance
When no measuring instrument is used, compare the color
with the reference set so that the colors will be the same.
with the reference set so that the colors will be the same.
1.
Adjustment of 9300
°
K
(1) Receive MODE29 (1280
×
1024 60Hz) 60IRE. Set COLOR
to 9300
°
K. (COLOR_INDEX=1)
(2) Begin with adjustment value, R/G/B_DRV_MAX.
(3) Make adjustment with R/G_USR_DRV to set the chroma-
(3) Make adjustment with R/G_USR_DRV to set the chroma-
ticity within the specification.
y adjustment ..... Make adjustment with B_USR_DRV.
(The value x also changes.)
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.
Make readjustment by lowering G_USR_DRV by 10 STEPs
only when the adjustment range of value y is insufficient
and B_USR_DRV = 255.
only when the adjustment range of value y is insufficient
and B_USR_DRV = 255.
(4) Make the signal 30IRE all white to check that it is within the
specification.
(5) Input a gray scale to check the picture quality.
(6) Conduct color save ( Select C with ALT + M ).
(6) Conduct color save ( Select C with ALT + M ).
Spec: 9300
°
K 80IRE (x, y) = (0.285, 0.294)
Within 3JND
Check the following specification for dispersion control
without adjustment.
without adjustment.
9300
°
K 30IRE (x, y) = (0.285, 0.294)
Within 4JND
Note: Make adjustment up to
±
0.0002.
2.
Adjustment of 6500
°
K
(1) Receive MODE29 (1280
×
1024 60Hz) 80IRE. Set COLOR
to 6500
°
K. (COLOR_INDEX=2)
(2) Begin with adjustment value, R/G/B_DRV_MAX.
(3) Make adjustment with R/B_USR_DRV to set the chroma-
(3) Make adjustment with R/B_USR_DRV to set the chroma-
ticity within the specification.
y adjustment ..... Make adjustment with B_USR_DRV.
(The value x also changes.)
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.
Make readjustment by lowering G_USR_DRV by 10 STEPs
only when the adjustment range of value y is insufficient
and B_USR_DRV = 255.
only when the adjustment range of value y is insufficient
and B_USR_DRV = 255.
(4) Make the signal 30IRE all white to check that it is within the
specification.
(5) Input a gray scale to check the picture quality.
(6) Conduct color save ( Select C with ALT + M ).
(6) Conduct color save ( Select C with ALT + M ).
Spec: 6500
°
K 80IRE (x, y) = (0.314, 0.324)
Within 3JND
Check the following specification for dispersion control
without adjustment.
6500
°
K 30IRE (x, y) = (0.314, 0.324)
Within 4JND
Note: Make adjustment up to
±
0.0002.
3.
Adjustment of 5000
°
K
(1) Receive MODE29 (1280
×
1024 60Hz) 90IRE. Set COLOR
to 5000
°
K. (COLOR_INDEX=3)
(2) Begin with adjustment value, R/G/B_DRV_MAX.
(3) Make adjustment with R/B_USR_DRV to set the chroma-
(3) Make adjustment with R/B_USR_DRV to set the chroma-
ticity within the specification when 90IRE is input. (The H/
L input level is 90IRE only for 5000
L input level is 90IRE only for 5000
°
K.)
y adjustment ..... Make adjustment with B_USR_DRV.
(The value x also changes.)
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.
Make readjustment by lowering G_USR_DRV by 10 STEPs
only when the adjustment range of value y is insufficient
and B_USR_DRV = 255.
only when the adjustment range of value y is insufficient
and B_USR_DRV = 255.
(4) Make the signal 30IRE all white to check that it is within the
specification.
(5) Input a gray scale to check the picture quality.
(6) Conduct color save ( Select C with ALT + M ).
(6) Conduct color save ( Select C with ALT + M ).
Spec: 5000
°
K 90IRE (x, y) = (0.345, 0.352)
Within 3JND
Check the following specification for dispersion control
without adjustment.
5000
without adjustment.
5000
°
K 30IRE (x, y) = (0.345, 0.352)
Within 4JND
Note: Make adjustment up to
±
0.0002. Check to see if the
specification “within 5000
°
K
±
3JND” is met when
adjustment up to
±
0.0002 is impossible although
B_USR_DRV can be lowered to 0 because of the nature
of PRE-AMP, for which white balance adjustment is
made. If the specification is met, there is no problem.
of PRE-AMP, for which white balance adjustment is
made. If the specification is met, there is no problem.
4-1
4-2
SECTION 4
DIAGRAMS
4-1. BLOCK DIAGRAMS
H
( FUNCTION SW )
1
GND
CN201
LED DRIVE
Q203,204
LED DRIVE
Q201
LED DRIVE
Q202
KEY MATRIX
S202-S208
2
POWER LED P
3
POWER LED S
4
INPUT LED 1
5
INPUT LED 2
6
SUB 5V
7
KEY DET
8
GND
9
POWER KEY
POWER / STBY
D207
POWER
S201
INPUT 1
D202
INPUT2
D201
C
TO
A BOARD
CN403
A BOARD
CN403
B-SS3482<J..>-BD2-24
1
RED
CN101
CN103
CN105
2
GND
3
GREEN
4
GND
5
BLUE
6
GND
7
H SYNC 1
8
V SYNC 1
9
DDC SCL 1
11
HOST GND 1
DDC 5V 1
10
DDC SDA 1
12
1
RED
2
GND
3
GREEN
4
GND
5
BLUE
B
J
6
GND
7
H SYNC 2
1
GND
1
RED
1
RED
2
GREEN
3
BLUE
13
H SYNC 2
14
V SYNC 2
15
DDC SCL 2
12
DDC SDA 2
INPUT 2
CN104
5
HOST GND 2
9
7
8
6
4
5
3
2
1
DDC 5V 2
6,7,8,10
GND
2
GREEN
3
BLUE
13
1
5
6
10
11
15
H SYNC 1
14
V SYNC 1
15
DDC SCL 1
12
DDC SDA 1
5
HOST GND 1
9
DDC 5V 1
6,7,8,10
GND
2
DTR
3
RXD
4
TXD
D120
D121
5
V-
6
A 5V
7
A 5V
8
V SYNC 2
9
DDC SCL 2
11
HOST GND 2
DDC 5V 2
TO
A BOARD
CN502
A BOARD
CN502
10
DDC SDA 2
12
REMOTE
CN106
INPUT 1
CN102
D
TO
A BOARD
CN404
A BOARD
CN404
( CONNENTION )
A
TO
A BOARD
CN501
A BOARD
CN501
1
5
6
10
11
15
B-SS3482<J..>-BD1-24
SWITCHING
Q301
PH302
T302
SRT
D311
D312
+5V
RECT
D313
PH303
SWITCHING CONT
IC304
SWITCHING CONT
IC303
SWITCHING
D310
TH301
T303
LFT
RY301
GND
D314
MAIN
RECT
IC301
SWITCHING CONT
7
8
10
11
12
6
5
3
4
1
2
VIN
DRV
RELAY
DRIVE
Q303
IC305
FAN DRIVE
FAN
SW
Q302
ISNS
GND
OOB
1
K
2
1
3
1
A
2
13.5V
CN301
D301
+13.5V RECT
D302
+13.5V RECT
D304
+7V RECT
D305
-7V RECT
PH301
V CTL
D308
IC302
VCTL
VCTL
SRT
T301
2
13.5V
3
GND
4
GND
5
GND
6
7V
7
7V
8
GND
9
GND
10
-7V
E
TO
A BOARD
CN401
A BOARD
CN401
TO
INVERTER UNIT
INVERTER UNIT
1
13.5V
CN302
2
13.5V
3
GND
4
GND
1
7-13V
CN304
2
PROT
3
GND
1
GND
CN306
2
GND
3
POWER SW
4
FAN DET
5
STBY 5V
6
STBY 5V
F
TO
A BOARD
CN401
A BOARD
CN401
1
AC L OUT
CN305
2
NC
3
AC L IN
1
AC L
CN307
MAIN POWER
SW
2
NC
AC INLET
3
AC N
DEM
DS
4
R
K
3
1
A
2
R
3
1
2
4
3
2
1
4
3
7
I
2
O
1
5
D
S
3
4
V AUX
V CTL
4
5
7
11
.
13
7
6
9
1
14
5
8
4
C
5
—
0
G
( POWER SUPPLY )
B-SS3482<J..>-BD3-24
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