Sharp DV-L80 (serv.man3) Service Manual ▷ View online
DV-L80S/W
9
Parts Code
Price Code
Remarks
Parts Code
Price Code
Remarks
QCNW-8145GEZZ
AQ
P.U. extension, 30-pin
QCNW-8393GEZZ
AH
Main-LCD extension, 12-pin
QCNW-8146GEZZ
AQ
Spindle extension, 13-pin
QCNW-8151GEZZ
AQ
Inverter extension, 6-pin
QCNW-8147GEZZ
AN
Sled extension, 2-pin
QCNW-8152GEZZ
AQ
LCD panel extension, 32-pin
QCNW-8395GEZZ
AC
Power supply extension, 9-pin
QCNW-8399GEZZ
AD
Operation PWB extension, 6-pin
QCNW-8394GEZZ
AD
Power supply extension, 20-pin QCNW-1766TAZZ
BF
Inverter junction PWB
QCNW-8544GEZZ
AG
Main-LCD extension, 13-pin
QPWBF5002GEZZ
BF
LCD junction PWB
QCNW-8545GEZZ
AG
Main-LCD extension, 10-pin
QPWBF5003GEZZ
BF
Pickup junction PWB
6. ADJUSTMENT METHOD
6-1. HARNESS LIST FOR SERVICE PARTS
Drawing for service jigs
Operation Cabinet
Mechanism
Power Supply
PWB
CN902
CN1103
CN5001
CN705
CN1800
CN1803
CN1801
P706
CN301
MA
FFC
FFC Spindle
Lead Wire
FFC
CN903
Pickup Junction PWB
QPWBF5003GEZZ
QPWBF5003GEZZ
Pickup
QCNW-8145GEZZ
QCNW-8145GEZZ
QCNW-8146GEZZ
QCNW-8147GEZZ
Sled
Sled
QCNW-8394GEZZ
20-Pole
20-Pole
Power Supply, 9-Pole
QCNW-8395GEZZ
QCNW-8395GEZZ
QCNW-8399GEZZ 6-Pole
QCNW-8545GEZZ
QCNW-8393GEZZ
LCD Junction
QCNW-8152GEZZ
QCNW-8152GEZZ
LCD Junction PWB
QPWBF5002GEZZ
QPWBF5002GEZZ
Inverter Junction PWB
QCNW-1766TAZZ
QCNW-1766TAZZ
Inverter
QCNW-8151GEZZ
QCNW-8151GEZZ
Inverter PWB
CN1901
LCD PWB
F
F
C
F
F
C
Panel
CN1900
CN1903
CN1902 CN1904
10
13
12
10
13
12
QCNW-8544GEZZ
Main PWB
DV-L80S/W
10
ADJUSTMENT PROCEDURE AND METHOD OF LCD PWB SIDE
Connect the LCD PWB to the jig for shipping adjustment.
Adjustment Item
Adjustment Menu
Adjustment Point
Signal/Setting
Adjustment Contents
1
Free run
FADJ
Observe the 7PIN of
No input
Adjust so that the frequency becomes
adjustment
TP1800 (HSY) with a
15.734
±
0.01kHz (63.556
µ
S).
frequency counter.
2
Screen center
R1914(VR)
Visual observation of
Monoscope full
Adjust the screen so that it is located in the
adjustment
the panel.
screen.
center.
HSY
15.734kHz
(63.556
µ
S)
CHECK ITEMS OF LCD PWB SIDE
Adjustment Item
Adjustment Point
Input Signal/Setting
Adjustment Contents
1
Free run check
Check the panel visually by connecting
External input
Check that the horizontal movement of ODS
to the checker.
is 1 mm or less when inputting a signal in
the external input mode with no signal input.
the external input mode with no signal input.
External
MAIN PWB SIDE ADJUSTING PROCEDURE AND METHOD.
Connect the MAIN PWB to the jig for shipping adjustment.
Supply the power in the condition that the “UP” and “DOWN” keys are pressed at the same time and move to the special
mode (SP MODE).
After that, get the default set by pressing the “PLAY” key. After setting, turn off the power once.
Supply the power again in the condition that the “UP” and “DOWN” keys are pressed at the same time and after moving
to the special mode (SP MODE), get the adjustment mode by pressing “DVD/TV/EXTERNAL” key.
Supply the power in the condition that the “UP” and “DOWN” keys are pressed at the same time and move to the special
mode (SP MODE).
After that, get the default set by pressing the “PLAY” key. After setting, turn off the power once.
Supply the power again in the condition that the “UP” and “DOWN” keys are pressed at the same time and after moving
to the special mode (SP MODE), get the adjustment mode by pressing “DVD/TV/EXTERNAL” key.
Each operation in the adjustment mode changes as follows:
(1) Switch the adjustment block with the "VOLUME DOWN" key input.
(2) Perform paging of each adjustment block with the "RETARN" key.
(3) Switch each adjustment item with the "VOLUME UP" key input.
(4) Change each adjustment value with the left or right cursor key.
DAC adjustment
OPT adjustment
TV1
TV2
TV3
FADJ
TV1 adjustment
TV2 adjustment
TV3 adjustment
SBRI
GPOS
CONT
WB-R
WB-B
SCOL
STIN
COM
OSDH
BBRI
GAIN
DV-L80S/W
11
Adjustment Item
Adjustment Menu
Adjustment Point
Signal/Setting
Adjustment Contents
1
Sub-bright
S brightness
Check that the sub-bright is “56”.
check
2
Common
GPOS
Connect the synchroscope Black-and-white Adjust the common amplitude to 8.0V.
amplitude
to 1 pin (COM) of TP1800. 10STEP
adjustment
3
RGB amplitude
GAIN
Connect the synchroscope Black-and-white Adjust the Vpp(SYNC-SYNC) of VG to 4.0V.
adjustment
to 2PIN (VG) of TP1800.
10STEP
4
Contrast
CONT
Connect the synchroscope Black-and-white Adjust the 100% white part(SYNC-white) to
adjustment
to 2PIN (VG) of TP1800.
10STEP
3.8V.
5
White balance
WB.R(Red)
Connect the synchroscope Black-and-white Adjust the white balance (red) so that black level
adjustment
to 2PIN (VG) and 3PIN
10STEP
the equal of green and red output become equal.
(Red)
(VR) of TP1800.
6
White balance
WB.R(Blue)
Connect the synchroscope Black-and-white Adjust the white balance (red) so that black level
adjustment
to 2PIN (VG) and 4PIN
10STEP
the equal of green and blue output become
(Blue)
(VB) of TP1800.
equal.
7
Sub tint
S color tone
Connect the synchroscope 100% color bar
Adjust so that the cross bars of the color signal
adjustment
to 4PIN (VB) of TP1800.
may become the minimum with seeing LCD
screen.
[Another method]
Adjust so that every horizontal term space my
become the level which the blue amplitude level
of the color bar signal is the same as.
screen.
[Another method]
Adjust so that every horizontal term space my
become the level which the blue amplitude level
of the color bar signal is the same as.
8
Sub color
S color density
Connect the synchroscope 100% color bar
Adjust the blue amplitude of the color bar
adjustment
to 4PIN (VB) of TP1800.
(black level to peak level) to 3.4
±
0.1Vpp.
9
Confrontation
COM
Specified adjustment jig
No input state
When using the specified adjustment jig
bias adjustment
(illuminometer) or visual
Brightness: Center Connect the output of jig to the oscilloscope
observation
Perform it in a
and adjust the waveform to the minimum
combination of
point.
PWB and the
At this time, perform the adjustment several
liquid crystal
times to fix the optimal point because the
panel which will measuring value hardly changes around the
be supplied as
be supplied as
optimal point.
products finally.
8.0V
±
0.1
4.0
±
0.1V
3.8V
±
0.1
(Type drawing)
Optimal point
Adjust within the above
range to fix the optimal point
range to fix the optimal point
DV-L80S/W
12
Adjustment Item
Adjustment Menu
Adjustment Point
Signal/Setting
Adjustment Contents
In case of visual adjustment Stand or tilt the
panel as shown in the figure and check by
shaking your head and seeing whether stripes
appear.
If the adjustment is improper, you will see
stripes in the longitudinal direction.
Perform the adjustment so that they
do not appear.
panel as shown in the figure and check by
shaking your head and seeing whether stripes
appear.
If the adjustment is improper, you will see
stripes in the longitudinal direction.
Perform the adjustment so that they
do not appear.
[Another method]
Flicker signal
Flicker signal
Externally input the signal shown left and
generator
adjust so that the cross bars become minimum
“Example:
by visually checking the screen.
BP1018 made
by JFC”
by JFC”
0
OSD position
OSDH
Visual observation
Adjust the OSDH of TV3 to 15 mm from the
adjustment
right of screen.
q
Lighting control
B brightness
Check that the B brightness is “76”.
standard check
Direction of stripe
15mm
B brightness
Click on the first or last page to see other DV-L80 (serv.man3) service manuals if exist.