Sharp LL-T15S3 User manual

CODE : 00Z
qSERVICE MANUAL
CONTENTS
Parts marked with "!" are important for maintaining the safety of the set. Be sure to replace these parts with specified
ones for maintaining the safety and performance of the set.
SHARP CORPORATION This document has been published to be used
for after sales service only.
The contents are subject to change withoutnotice.
LLT15S3SME
LCD MONITOR
MODEL LL-T15S3
CHAPTER 1. OUTLINE OF THE PRODUCT,
NOMENCLATURE AND FUNCTION. . . . . . . . . . . . . . . . . .1 - 1
CHAPTER 2. CONNECTION, ADJUSTMENT,
OPERATION, AND FUNCTIONS. . . . . . . . . . . . . . . . . . . . .2 - 1
CHAPTER 3. DISASSEMBLY AND ASSEMBLY. . . . . . . . . . . . . . . . . . . .3 - 1
CHAPTER 4. TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 - 1
CHAPTER 5. CONNECTOR SIGNAL TABLE •
CIRCUIT DIAGRAM • PWB LAYOUT . . . . . . . . . . . . . . . . .5 - 1
■APPENDIX : IC DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 - 1

LL-T15S3 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 1
CHAPTER 1. OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1. SPECIFICATIONS
■
■■
■ PRODUCT SPECIFICATIONS
• LCD display
38 cm measured diagonally
TFT LCD module
• Resolution (max.)
XGA 1024 x 768 pixels
• Displayable colors (max.)
Approx.16.19 million colors (6bit + FRC)
• Brightness (max.)
260cd/m2
• Dot pitch
0.297 (H) x 0.297 (V) mm
• Contrast ratio
350:1
• Angle of visibility
Left-right 160°; Up-down 150° (contrast ratio u5)
• Screen display size
Horizontal 304.1 mm x Vertical 228.1 mm
• Video signal
Analog RGB (0.7Vp-p) [75Ω]
• Sync signal
Separate Sync (TTL level: +/-), Sync on Green,
Composite Sync (TTL level: +/-)
• Expansion compensation
Digital screening (Enlargement VGA/SVGA etc. to full screen size.)
• Plug & Play
VESA DDC1/DDC2B compatible
• Speaker output
1W + 1W
• Power management
VESA: based on DPMS
• Input signal terminal
Mini D-sub 15 pin (3 row)
• Audio input terminal
Mini stereo jack
• Headphone terminal
Mini stereo jack
• Screen tilt
Upward approx.0 - 25°; downward approx.0 - 5°
• Power supply
AC100 - 240V, 50/60Hz
• Temperature of operating environment
5 - 35°C
• Power consumption
33W (With no audio input)
(36W maximum, 2W when in power-saving mode)
• Dimensions
338 (W) x 145 (D) x 313 (H) mm
• Weight
Approx. 3.9kg (approx. 3.3kg excluding stand)
(Excluding analog signal cable.)
■
■■
■ DIMENSIONS (UNITS: MM)
Analog signal cable: Approx. 1.8m
Audio cable: Approx. 1.8m
■
■■
■ SIGNAL TIMINGS
• Recommended resolution is 1024 x 768.
• All are compliant only with non-interlaced.
• Frequencies for Power Macintosh are reference values.
• If the monitor is receiving timing signals that are not compatible, [OUT
OF TIMING] will appear.
Follow your computer's instruction manual to set the timing so that it
is compatible with the monitor.
• If the monitor is not receiving any signal (synch signal), [NO SIGNAL]
will appear.
Display mode Hsync Vsync Dot frequency
VESA 640 x 480 31.5kHz 60Hz 25.175MHz
37.9kHz 72Hz 31.5MHz
37.5kHz 75Hz 31.5MHz
800 x 600 35.1kHz 56Hz 36.0MHz
37.9kHz 60Hz 40.0MHz
48.1kHz 72Hz 50.0MHz
46.9kHz 75Hz 49.5MHz
1024 x 768 48.4kHz 60Hz 65.0MHz
56.5kHz 70Hz 75.0MHz
60.0kHz 75Hz 78.75MHz
US text 720 x 400 31.5kHz 70Hz 28.3MHz
Power
Macintosh
series
640 x 480 35.0kHz 66.7Hz 30.2MHz
832 x 624 49.7kHz 74.6Hz 57.3MHz
1024 x 768 60.2kHz 75Hz 80.0MHz
338
313
275
63
203 145

LL-T15S3 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 2
■
■■
■ THE ANALOG RGB INPUT CONNECTOR PIN
■
■■
■ POWER MANAGEMENT
The monitor is based on VESA DPMS (Display Power Management Sig-
naling).
To activate the monitor's Power Management function, both the video
card and the computer must conform to the VESA DPMS standard.
■
■■
■ DDC (PLUG & PLAY)
This monitor supports the VESA DDC (Display Data Channel) standard.
DDC is a signal standard for carrying out Plug & Play functions on the
monitor or PC. It transfers information such as degree of resolution
between the monitor and PC. You can use this function if your PC is DDC
compliant and if it is set so that it can detect the Plug & Play monitor.
There are many varieties of DDC due to the differences between sys-
tems. This monitor works with DDC1 and DDC2B.
2. PRODUCT DESCRIPTION
No. Function No. Function
1 Red video signal input 9 +5V
2 Green video signal input 10 GND
3 Blue video signal input 11 N.C.
4 GND 12 DDC data
5 GND 13 For Hsync signal input
6 For red video signal GND 14 For Vsync signal input
7 For green video signal GND 15 DDC clock
8 For blue video signal GND
DPMS mode Screen Power
consumption H-sync V-sync
ON Display on 36W Yes Yes
STANDBY
Display off 2W
No Yes
SUSPEND Yes No
OFF No No
12345
1112131415
6789 10
(Mini D-sub connector with 15 pins)
1. MENU button: This button is used to pop-up, select and close
the OSD (On Screen Display) Menu.
2. c/MODE button: When the OSD Menu is displayed:
This button is used to select menu options.
When the OSD Menu is not displayed:
This button is used to set COLOR MODE.
3. e d buttons: When the OSD Menu is displayed:
These buttons are used to select an option or
adjust the value of the selected option.
When the OSD Menu is not displayed:
These buttons are used to adjust backlight
brightness and speaker volume.
4. Power button: Pressing this button turns the power on. (After
turning the power on, it may take a little time
before the screen displays.)
Press the button again to turn the power off.
5. Power LED: This LED is lit green when in use and orange
when in power-saving mode.
6. Speakers: Audio entering via the monitor and the external
device connected to the monitor can be heard.
7. Power terminal:
8. Analog RGB input terminal:
The analog signal cable is connected here.
The analog signal cable included should be
used.
9. Audio input terminal: A computer’s audio output terminal can be
connected here. The audio cable included
should be used.
10. Security lock anchor: By connecting a security lock (commercially
available) to the security lock anchor, the mon-
itor is fixed so that it cannot be transported.
The security slot works in conjunction with
Kensington Micro Saver Security Systems.
11. Headphone terminal: Headphones (commercially available) can be
connected here.
12. Ventilation openings: Note: Never block the ventilation openings as
this may lead to overheating inside the monitor
and result in malfunction.
1 2 3 4 5 66 7 8 9 1110
12

LL-T15S3 OUTLINE OF THE PRODUCT, NOMENCLATURE AND FUNCTION
1 – 3
■
■■
■ STANDING UP AND ADJUSTING THE MONITOR
Caution:
• Pressure from hands on the LCD panel could cause damage.
• Be careful not to allow your fingers to be pinched.
1) Standing up the monitor
1. Press down on the stand and lift up the top section of the monitor.
• When raising the display section, movement becomes harder in
the middle of travel.
Continue raising by applying more force at that point.
• Raise the display section until it stops. (when titled forward
approx. 5°)
2. Adjust to an easy to view angle.
2) Angle adjustment
Press down on the stand and adjust it to a suitable viewing angle.
• Do not use the monitor when tilted back beyond approximately 25°.
The monitor may fall over leading to injury or malfunction.
3) Folding up the monitor
1. Remove the cable.
2. Press down on the stand and gently fold back the monitor.
approx. 5
approx. 5 approx. 25
Prohibited range
approx. 5 approx. 25

LL-T15S3 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 1
CHAPTER 2. CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
1. CONNECTING THE MONITOR AND TURNING THE MONITOR ON AND OFF
Caution:
• When connecting, ensure that both the monitor and computer are switched off.
• Be careful not to overly bend the cable or add extension cords as this could lead to a malfunction.
1-1. CONNECTING THE MONITOR TO A COMPUTER
• Paying attention to connector direction, firmly insert the signal cable
to terminal, and then tighten the screws at both sides.
If connecting to a D-sub 15 pin 2 row Apple Power Macintosh, attach a
Macintosh conversion adapter (commercially available) to the analog
signal cable.
Note: When connecting to a notebook, if the notebook computer's
screen is set so that it is displaying at the same time, the MS-
DOS screen may not be able to display properly. In this case,
change the settings so that only the monitor is displaying.
■
■■
■Connect the accessory audio cable
When the accessory audio cable is connected to the audio output termi-
nal of the computer, the sound of the connected computer is output
from the monitor speakers. You can also use the headphone jack of the
display.
1-2. CONNECTION OF HEADPHONES
(COMMERCIALLY AVAILABLE)
Headphones (commercially available) can be connected.
Note: When the headphones are connected, no sound can be heard
from the monitor speakers.
1-3. CONNECTING THE MONITOR TO A POWER
SOURCE
1-4. TURNING THE POWER ON
1. Press the monitor's POWER button.
2. Turn on the computer.
The power LED will be lit green, and the screen will display an
image.
Note:
• If using the monitor for the first time or after having changed the
system settings during use, perform an automatic screen adjust-
ment.
• Depending on the computer or OS, it may be necessary to use the
computer to install monitor set-up information. If so, follow the
steps below to install the monitor set-up information.
Analog RGB terminal
(Mini D-sub 15 pin, 3 row)
Analog signal cable
Macintosh conversion adapter
Audio input terminal
Audio output terminal
Audio cable
Headphone terminal
Headphones
Power terminalo
AC outlet
Power cord
ON
Turn on the
computer
Press power button

LL-T15S3 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 2
1-5. TURNING THE POWER OFF
1. Turn the computer off.
2. Press the monitor's POWER button.
The Power LED will disappear.
If the monitor is not going to be used for a long period of time, be sure to
unplug it from the AC outlet.
1-6. INSTRUCTIONS FOR ATTACHING A VESA
COMPLIANT ARM
An arm or stand based on the VESA standard (commercially available)
can be attached to the monitor.
Procurement of the arm or stand is at the custom-er's discretion.
When choosing the arm to be installed please take note of the following
points.
• The arm should be compatible with the VESA standard, and there
must be a gap of 75mm x 75mm between the screw holes on the
section to be attached.
• The arm must not fall off or break off after being attached to the
monitor.
1. Ensure that both the monitor and computer are switched off.
2. Unplug the power cord from the AC outlet.
3. Remove the analog signal cable and the audio cable from the com-
puter.
4. Press down on the stand and gently fold back the monitor.
• Be careful not to allow your fingers to be pinched.
• Do not overly bend the cable or add extension cords as this could
lead to malfunction.
5. Being careful not to damage the monitor, spread out a soft cloth and
lay the monitor on it display-side down.
6. Attach the arm to the monitor with four screws.
Note: The screws used to attach the arm should be M4 screws with a
length of 8 mm ~ 10 mm protruding from the surface to be
attached. Using different screws could cause the monitor to fall off
or to be internally damaged.
7. Connect the analog signal cable and power cord.
The stand may be removed.
1. Turn off the monitor, and remove the analog signal cable, the audio
cable and the power cord from the monitor.
2. Being careful not to damage the monitor, spread out a soft cloth and
lay the monitor on it display-side down.
3. Remove the four screws and then remove the stand from the moni-
tor.
• The stand is specially made for use with this monitor. Once hav-
ing removed the stand, never attempt to attach it to another
device.
• Once having removed the screws, store them together with the
stand and if the stand is ever re-attached be sure to use the origi-
nal screws.
Using different screws could lead to a malfunction.
4. Follow instruction no.6 to attach the arm to the monitor, then con-
nect the analog signal cable, the audio cable and the power cord.
OFF
Press power button
Turn the
computer off
8~10mm
Screw used to attach arm
Arm
Part of monitor to which arm is
attached

LL-T15S3 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 3
2. ADJUSTMENT
2-1. ADJUSTMENT METHOD
6) Version display (for service)
Power ON
Display the software version.
Press the above two buttons at same time, and while turn the power
on.
7) Aging (for service)
Power ON
Press the dbutton, Screen color is changed as following.
Green 3Blue 3Gray 3White 3Light Red 3Light Green 3
Pink 3Red
When the test is terminate, Power off
MENU
MENU
MENU
4) Adjusting the backlight and speaker volume
buttons (Press the button and select "BRIGHT" or "VOLUME".)
5) Setting color mode
button (STD, sRGB, VIVID)
1) Resetting all adjustment values
Power ON
Power ON
Press the above two buttons at same time, and while turn the power on.
2) ADJUSTMENT menu reset Press the two buttons at same time.
3) Adjustment lock function
While pressing the MENU button, turn the power on.
6) Screen adjustment
MENU ADJUSTMENT
AUTO
CLOCK
PHASE
H-POS
V-POS
AUTO
MENU GAIN CONTROL BLACK LEVEL
CONTRAST
MENU (COOL STD
WHITE BALANCE WARM USER)
R-CONTRAST
CONTRAST
(R/G/B)
G-CONTRAST
B-CONTRAST
MENU MODE SELECT
MENU
MENU
buttons
buttons
buttons
buttons
buttons
buttons
buttons
buttons
buttons
buttons
OSD H-POSITION
OSD V-POSITION
SCALING buttons
buttons
buttons
COLORS buttons
LANGUAGE buttons
END
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
/MODE
MENU d
<VERSION & CHECK SUM>
VERSION : 1.01 (200XXXXX)
CHECK SUM : OK XXXX
c/MODE e
AGING TEST
> : SET
MENU : END

LL-T15S3 CONNECTION, ADJUSTMENT, OPERATION, AND FUNCTIONS
2 – 4
2-2. ADJUSTMENT ITEM LIST
BUTTON ITEM ADJUSTMENT DESCRIPTION
MENU MENU 1:
ADJUSTMENT MANUAL CLOCK 0~255 CLOCK:Adjust so that vertical flicker noise is not emit- ted. (e d buttons)
MENU 1
4
MENU 2
4
MENU 3
4
MENU 4
4
MENU END
PHASE 0~31 PHASE: Adjust so that horizontal flicker noise is not
emitted. (e d
e de d
e d buttons)
H-POS 0~400 H-POS (horizontal positioning) and
V-POS (vertical positioning)
To center the screen image within the boundaries of
the screen, adjust the left-right (H-POS) values and
the up-down (V-POS) values. (e d
e de d
e d buttons)
V-POS 0~100
AUTO Automatic screen adjustment
Options in the ADJUSTMENT Menu can be adjusted
automatically
(CLOCK, PHASE, H-POS V-POS).
MENU 2:
GAIN CONTROL MANUAL BLACK LEVEL 0~63
BLACK LEVEL: Total screen brightness can be adjusted
while watching the color pattern.
(
e d buttons)
CONTRAST 0~100 CONTRAST: While watching the color pattern,
adjustments can be made so that all
graduations appear. (e d
e de d
e d buttons)
AUTO GAIN CONTROL Menu
AUTO:Every menu option is automatically adjusted
using the Auto Gain Control function.
MENU 3:
WHITE BALANCE
COOL • STD • WARM
(5 levels),
USER R • G • B: 0~100
WHITE BALANCE Menu
COOL : Color tone bluer than standard
• : Color tone slightly bluer than standard
STD : Color tone standard setting
• : Color tone slightly redder than standard
WARM : Color tone redder than standard
USER
R-CONTRAST: ebutton for blue-green
dbutton for red
G-CONTRAST: ebutton for purple
dbutton for green
B-CONTRAST: ebutton for yellow
dbutton for blue
MENU 4:
MODE SELECT OSD H-POSITION (OSD horizontal position) The position of the OSD display can be moved to the left and right. (e d buttons)
OSD V-POSITION
(OSD vertical position) The position of the OSD display can be moved up and down. (e d buttons)
SCALING
(Level of scaling) LOW • HIGHT SCALING (Level of scaling) Adjusts the image to optimum sharpness when Screen
expansion is taken. (e dbuttons)
COLORS
260K (approx. 260,000)
16M (approx. 16.19million)
Maximum display colors can be set. (e dbuttons)
LANGUAGE 7 countrys
DEUTSCH, ENGLISH,
ESPANOL, FRANCAIS,
ITALIANO, NETHER-
LAND, SVENSKA
LANGUAGE
Messages displayed on the screen and OSD Menu
contents can be changed to the following languages.
Dutch, English, French, German, Spanish, Italian,
Swedish.
c/MODE Select the item
sRGB, STD, VIVID Setting color mode when the ADJUSTMENT Menu is
not displayed.
STD: Displays image with the color tone results from
original scheme of liquid crystal panel.
sRGB: sRGB is international standard of color repre-
sentation specified by IEC (International Elec-
trotechnical Commission). Color conversion is
made in taking account of liquid crystals char-
acteristics and represents color tone close to it
original image.
VIVID: Displays an image with dynamic and VIVID pri-
mary colors.
e d Volume: 0~100
Bright: 0~31 Adjusting the backlight and speaker volume
POWER OFF

LL-T15S3 DISASSEMBLY AND ASSEMBLY
3 – 1
CHAPTER 3. DISASSEMBLY AND ASSEMBLY
1. SEPARATING DISPLAY UNIT AND
STAND UNIT
1) Remove the screws and separate the display unit 1from the stand
unit 2.
2. REMOVING KEY BOARD
1) Remove the screws and then remove the rear cabinet.
2) Remove the screws and connectors, and then remove the KEY board.
3. REMOVING POWER SUPPLY/INVERTER
BOARD AND MAIN BOARD
1) Remove the hex. screws Aand screws B, and then remove the shield.
2) Remove the screws Aand then remove the ground lead.
3) Remove the connectors and screws B, and then remove the power
supply/inverter board.
4) Remove the connector locking tape.
5) Remove the connectors and screws, and then remove the main board.
4. REMOVING LCD MODULE
1) Remove the screws Aand then remove the front cabinet 1.
2) Remove the screws B, and then remove the frame 2from the LCD
module 3.
1
2
B
B
B
B
B
B
A
A
B
B
BB
B
B
1
2
3
B
B
A
A

LL-T15S3 TROUBLESHOOTING
4 – 1
CHAPTER 4. TROUBLESHOOTING
No power supply
Does LED turns on in green
when power switch is turned
on?
No
No
No
No
No
No
LED turns on in red? Yes
Yes
Yes
Yes
Yes
Yes
Yes
*Check LED for breakage.
*Check key cable for disconnection.
No output +5V, 12V from
power supply unit. Yes Replace power supply unit.
Replace any unit (main PWB, SW PWB, cable)
which shows any defect, with a new one.
1) PC is turned off?
2) RGB cable is disconnected?
3) Synchronizing signal is output from RGB
cable?
Check whether the unit is in power save
mode (synchronizing signal is not input.).
Synchronizing signal is input to main PWB?
Replace RGB cable
with a new one.
LED turns on in orange?
Check power input system.
1) Power supply PWB
* Normal?
* Connected properly?
2) Blown out fuse (F1)?
3) Check +5VX, 3.3VX, 3.3VA, VDD, VD
and VLCD are output?
4) LED
* Check LED for breakage.
* Check the path between P5 and U6.
* Check the cable for disconnection.
Replace any defective unit.
[ 1) Power supply PWB, 2) Main PWB,
3) Switch PWB] with a new one.
Backlight turns ON?
Check for RGB cable input
signal.
Replace RGB cable.
Check each pin terminal
of P3.
Normal
Normal
Normal
Defective
Defective
*Check inverter PWB unit.
Note: Use caution when checking output
side because it has a high voltage.
Replace LCD module lamp with
a new one.
Replace inverter PWB
unit with a new one.
A

LL-T15S3 TROUBLESHOOTING
4 – 2
A
Screen does not operate normally.
Check RGB cable. Defective Replace RGB cable with
a new one.
Check screen condition by changing display modes.
Operate the "ALL RESET" to check if screen condition changes.
(Press and hold MENU and SELECT buttons while turning on power switch.)
Screen stays in black. Screen stays in white.
Screen jitters or on-screen
characters flicker.
Abnormal color
Check the following signals
1) Check if module control signal is output (U1).
2) Check ifVLCD voltage is output normally.
Yes No
Yes No
Yes No
CLOCK and PHASE
can be adjusted? Does abnormal area move on
screen when BLACK LEVEL or
CONT is changed after H-POS
or V-POS is set?
Switch PWB defective
Main PWB defective. LCD panel defective.

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 1
CHAPTER 5. CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
1. CONNECTOR SIGNAL TABLE
CONNECTOR P1 CONNECTOR P2 CONNECTOR P3
CONNECTOR P5
CONNECTOR P8
1GND
2BO7
3BO6
4BO5
5BO4
6GND
7BO3
8BO2
9BO1
10 BO0
11 GND
12 GO7
13 GO6
14 GO5
15 GO4
16 GND
17 GO3
18 GO2
19 GO1
20 GO0
21 GND
22 RO7
23 RO6
24 RO5
25 RO4
26 GND
27 RO3
28 RO2
29 RO1
30 RO0
31 GND
32 GND
33 N.C
34 N.C
35 N.C
36 GND
1GND
2 DCLK
3GND
4DE-O
5VSYNC
6HSYNC
7N.C
8GND
9BE7
10 BE6
11 BE5
12 BE4
13 GND
14 BE3
15 BE2
16 BE1
17 BE0
18 GND
19 GE7
20 GE6
21 GE5
22 GE4
23 GND
24 GE3
25 GE2
26 GE1
27 GE0
28 GND
29 RE7
30 RE6
31 RE5
32 RE4
33 GND
34 RE3
35 RE2
36 RE1
37 RE0
38 VLCD
39 VLCD
40 GND
1 12V
2GND
3GND
45V
5 BRI_Min
6INV_ON
1POW1
2GND
3LED1
4LED2
5 KEY1
6 KEY2
7 KEY3
8 KEY4
1Red
2 Green
3 Blue
4 Ground
5 Ground
6R-GND
7 G-GND
8B-GND
9+5V
10 Ground
11 N.C
12 (SDA)
13 H-sync
14 V-sync
15 (SCL)

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 2
A B
C D
87654321
12345678
D C
B A
1/4
2. CIRCUIT DIAGRAM 2-1. MAIN PWB

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 3
A B
C D
87654321
12345678
D C
B A
2/4

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 4
A B
C D
87654321
12345678
D C
B A
3/4

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 5
A B
C D
87654321
12345678
D C
B A
4/4

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 6
Vhigh-2(Lamp2) Vhigh-1(Lamp1) Vlow-1(Lamp1) Vlow-2(Lamp2)
Vhigh-2(Lamp2) Vhigh-1(Lamp1) Vlow-1(Lamp1) Vlow-2(Lamp2)
R68,R71,R69,R72,R64,R65,R67,R83,R80(0805) 0R
T0-220F
TO-92
1/8W
12.5* 20
1WS
10*16
DO41
1/8W
10R(1/4W)
DR 8*10
0.39
EFD25
Fosc=5 0KHz
470U/25V(KY)
5*11
1/8W
10*16
TO-9 2
1/8W 1/8W
1/4W
DR 8 *10
1/8W 13.7K
R57
24.9K
105K 1K
Primary GND Secondary GND
R66,R67,R70,R79,R81,R84 (1206)0R J8,J9,J10,J11,J12,J13,J14,J15,J16,J17,J18,J19, J20,J21 J22,J25,J26,J28
Y3
100U/400V(KMG)
1M
18*32
UU15.7
10N 471
1000P
1000P
EN_ON
BRIGHTNESS
GND
+12V/2.0A
GND
+5V/1.8A
BRIGHTNESS EN_ ON
+5V
RT
+5V
RT
CP
CP
CP
B+
B+
B+
TP
TP
TP
TP
TP
TP
TP
TP
CP
CP
CP
Pin 2
L1 2
1 34
Q9 SI4532
1 2 3 4
8 7 6 5
CN3
SM02B-BHSS-1-TB(JST)
2 1
U4 PC-621
1 23
4
C39 101P/1KV
R42
R26
10K
R55
1/4W820
C45
4.7u/10V(X5R)1206
D13
EGP10M
21
C8 10n
C5
0.47U
R49
1K(1/8W)
R52
1/4W 100
R54 1/4W5.6K
C52
470n
R31
422R/1%
C46
4.7u/10V(X5R/1206)
C32
560pF(NPO)
D19
P6KE160A
21
ZD7
1/2W6B2
21
R30
560R(1206)
R25
10K
R73
1/8W
R50
1/4W100
D18
P6KE160A
21
R48 100K
ZD1
5.6v
F1
3A/DIP(R25103)
C35
0.1uf
Q4
MMBT3904
1
2
3
R56
L4
12
C41 2n2/500V
T3
110 2 3 4
5
7
9 8
6
C3 10n
T1
19:2600
5,6,7 8
1,2,3,4 9
R74
1/8W
C11
OPEN
ZD3
5.6v
D2
LL4148
21
Q2
DTA114EKA
D1
LL4148
21
R1
910R/1206
C47
100n(0805)
C28
4.7U,X5R,10V(1206)
R13280K,1%
ZD4
5.6v
R76
1/2W1k
U5
TL431
3
1
2
+C38
1000uF/25V(KY)
C37
2n2/500V
+C33
C16
0.047U
C29
15P,3KV
C6
1.0U/25V/1206
R8 1M
C10 C/NC
C31
6.8nF
C12 0.22U
R16 10K
R27
1M
Q10
SI4532
1 2 3 4
8 7 6 5
F2
FUSE- 2A /250V FUSE- 2A /250V 12
Q5
2N7002
2
31
+ C14
220u/25V
R53
1/4W 100
C23
0.1U
R10
137K/F
R3
22(1206)
R32
3M(SMD/2010)
C36
2n2/500V
C15
4.7U,X5R,10V
R77
220R/3W
Y1
R33
3.32KF
R4
10K
D16 20A100V
1 32
R35 422R/1%
FB4
12
D5
LL4148
21
D14
RGP10D
21
R51
1/4W100
R20
0R
FB3
12
R21
0R
RT1
2A 4R(P=5mm)
R23
0R
R24
0R
C26
6.8nF
C19
3.3nF(5%)
R12
1M(0805)
C24
15P,3KV
R89
220R/3W
Y2
C20
XXXX
ZD6
1/2W 16-2
21
Q14
2SC1815
T2
19:2600
5,6,7 9
1,2,3,4 8
R59
13.3K
D17 10A/60V 1
32
R17 18K
CN4
SM02B-BHSS-1-TB(JST)
1 2
CN1
1 2 3
D6
DAN217
13
2
R87 xxxx
D15
1N 4148
21
R38
1/4W750K
D3
LL4148
21
C51
2n2/500V
L6
12
C25
10P,3KV
D9
DAN217
13
2
C17
220P
Q12
2SK2628
1
23
R78
220R/3W
R28
3M(SMD/2010)
U6 TL431
3
1
2
BD1 2KBP06M
2
1
3
4
R57
1/8W
R43
R18
47K
R9
1M
R29
3.32KF
R15 51K
U2SG6841
1 2 3 45
6 7 8
GND FB VIN RI RT
SENSE
VDD
GATE
C13 0.22U D8
DAN217
13
2
+C40
470U/25V(KY)
D7
DAN217
13
2
R19
36.5K/F
CN2 INV TO M/B CON
1 2 3 4 5 6
C7
0.1U
C27
560p(NPO)
C30 10P,3KV
R39
1/4W750K
U3
PC-621
1 2
3 4
+C1
220U/25V(DIP)
R34 560
C21
0.1U
CN6
SM02(4.0)B-BHS-1-TB(JST)
1 2
Q15 2SA673
R2 560R/1206
C53
2n2/1KV
R36 1/2W
R47
1/8W100K
R75
1/2W
+
C42 470uF/25V(KY)
Q3
DTC114EKA
1
2
3
R7
10k
+C43
10* 16
R90 1/4W
R41 33K
D4 LL4148
21
R40
C4
680n
R86
15K 1%
Q13
2SA1015
R61
1/8W100
F3
12
R44 15R
C48
10P/3KV
VZ1
12
C22 0.047U
C49 10P/3KV
332P
Q7
2N7002
2
3
1
R22
63.4K/F
R85
15K
Q1
MMBT3904
1
2
3
R58
1/8W5.6K
+
C34
10uF/50V(KY)
R11 110K/F
R60
1/8W330
ZD5 26V
21
R45
1/8W10K
R46
1/8W1K
OZ960
U1OZ960G/SSOP20
1 2 3 4 5 6
18 17 16 15 14 138
7
19
9
10 12
11 20
CTIMR OVP ENA SST VDDA GNDA
CT RT
PWRGND
LCT
DIM
LPWMRT1
REF
PDRV_A
FB CMP PDRV_C
NDRV_D
NDRV_B
C9
1500P(NPO)
D11
DAN217
13
2
Q6
2N7002
2
31
C18
3.3nF
C44
103P
Q8 SI4532
1 2 3 4
8 7 6 5
R14 NC
D10
DAN217
13
2
CN5
SM02(4.0)B-BHS-1-TB(JST)
1 2
Q11
SI4532
1 2 3 4
8 7 6 5
X1
0. 47uF
OP1
OP2
N_D
N_D
P_A
FB1
N_B
P_C
OP1
P_A
OVP
N_B
P_C
OVP
OP2
FB1
A B
C D
87654321
12345678
D C
B A A
B
C D
87654321
12345678
D C
B A A
B
C D
87654321
12345678
D C
B A A
B
C D
87654321
12345678
D C
B A
1/1
2-2. POWER SUPPLY PWB

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 7
3. PWB LAYOUT 3-1. MAIN PWB A side

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 8
B side

LL-T15S3 CONNECTOR SIGNAL TABLE • CIRCUIT DIAGRAM • PWB LAYOUT
5 – 9
3-2. POWER SUPPLY PWB