Lenovo L2062 Service Manual
Lenovo Service Manual L2062W
1
联想显示器维修手册
C
ustom:
L
enovo
Model: L2062W
This manual apply to main board 715G4032
IC
Realtek 2271
Lenovo Service Manual L2062W
2
R
EVISION LIST
Version Release Date Revision History Model TPV Model No
A00 Mar-23-2011 Initial Release L2062W
T
AAMR86CZTG5HNJ
TAAGR86CZTG5H
NJ
A02 Mar-30-2011
U
pdate Disassem
bly
SOP and software
SOP
L2062W
T
AAMR86CZTG5HNJ
TAAGR86CZTG5H
NJ
A03 Sep-7-2011 Add model L2062W TABSR86CZTG5HNJ
Lenovo Service Manual L2062W
3
CONTENTS
1. LCDSpecifications........................................................................................................................................4
1.1Pr
oductFeatures..............................................................................................................................................4
1.2Factorypresetmodes......................................................................................................................................5
1.3NewFeatures...................................................................................................................................................5
2. Operationinstruction...................................................................................................................................6
2.1Conn
ection.......................................................................................................................................................6
2.2ControlButtons................................................................................................................................................6
2.3OSDUsermodeadjustment............................................................................................................................7
2.4OSDLockfunction..........................................................................................................................................10
3.Interfacedescription...................................................................................................................................11
3.1VGAInterfacedescription..............................................................................................................................11
3.2DVIConnector................................................................................................................................................11
4. PanelFeature.............................................................................................................................................12
4.1Gene
ralinformation......................................................................................................................................12
4.2AbsoluteMaximumRatings...........................................................................................................................12
4.3ElectricalCharacteristics................................................................................................................................12
4.4OpticalCharacteristics...................................................................................................................................13
4.5PanelBlockDiagroam...................................................................................................................................13
4.6LVDS ConnectorpinAssignment....................................................................................................................14
5.BlockDiagram.............................................................................................................................................15
5.1
LCDBlockDiagram.......................................................................................................................................15
5.2MainBoardBlockDiagram............................................................................................................................15
5.3Power/InverterBoardBlockDiagram...........................................................................................................16
5.4SoftwareFlowChart......................................................................................................................................17
6. CircuitSchematic.......................................................................................................................................18
6.1MainBo
ard‐‐‐715G4032................................................................................................................................18
6.2PowerBoard715G4497‐P01.........................................................................................................................24
6.3Converterpart...............................................................................................................................................25
6.4KeyBoard715G4585K0B...............................................................................................................................26
7.ExplodedViews...........................................................................................................................................27
8. PCBLayout.................................................................................................................................................28
8.1MainB
oard‐ 715G4032‐M01........................................................................................................................28
8.2PowerBoard715G4497对............................................................................................................................30
8.3KeyBoard715G4585......................................................................................................................................32
9. Maintenance..............................................................................................................................................33
9.1M
aintenance
requisite
..................................................................................................................................33
9.2DisassemblySOP............................................................................................................................................33
9.3TroubleShooting............................................................................................................................................37
9.4Softwareupdatestep（SOP）......................................................................................................................43
9.5WritingDDCprogramstep............................................................................................................................49
9.6Factorymodeadjustment..............................................................................................................................52
10.BOMList...................................................................................................................................................54
10.1Mo
del：TAAMR86CZTG5HNJ......................................................................................................................54
Lenovo Service Manual L2062W
4
1. LCD Specifications
1.1 Product Features
Model Lenovo L2062 Wide / L2062WA
LCD Panel
Driving sy
stem
TFT Color LC
D
Active Display Area
508mm(20”) 442.8 (W)×249.075(H)mm
Pixel Pitch
0.2768 mm×0.2768mm
Input
Video
R
,G ,B Analog Interface，75ohm,0.7V
Positive
DVI digital Interface
Separate Sync. H/V TTL
H-Frequency 30kHz--83kHz
V-Frequency 50Hz--76Hz
Input Connector
D-Sub 1
5pin
DVI 24pin
Display Colors 16.7M Colors
Dot Clock 153MHz
Max. Resolution 1600x900 @75Hz
Plug & Play VESA DDC2B DDC/CI
Power Consumption
O
N Mode <22W
Power Saving Mode <1W at 100Vac & 240Vac
Switch OFF
<0.5W
Power Source
9
0~264VAC,47~63Hz, 1.5A Max supply current
Environmental
Con
siderations
Operating Te mp: 0° to 40°C
Storage Temp.: -20° to 60°C
Operating Humidity : 8% to 80%
Dimensions(including stand)
480.0(W)x362.5(H)x174.8 (D )m m
Weight (N. W.): 4.3kg
Safety
G
B4943 IEC60950 CE CCC RoHS
Lenovo Service Manual L2062W
5
1.2 Factory preset modes
STANDARD RESOLUTION
HORIZONT
AL
F
REQUENC
Y
VE
RTICAL
FREQUENC
Y
VGA
64
0×480
31.469kHz 59.94
Hz
640×480
35
.00kHz
66.67Hz
640×480
37
.861kHz 72.80
Hz
640 × 480 37.50kHz 75.00Hz
DOS-mode
640 × 480 31.469kHz 70.087Hz
720 × 400 31.469kHz 70.087Hz
Mac-mode 832 ×624 49.725kHz 74.50Hz
SVGA
80
0 × 600 35.16kHz 56.25
Hz
800 × 600 37.879kHz 60.317Hz
800 × 600 48.07kHz 72.188Hz
800 × 600 46.875kHz 75Hz
XGA
1024 ×
768
48.363kH
z
60
Hz
1024 × 768 56.476kHz 70Hz
1024 × 768 60kHz 75Hz
1152 × 864 67.6kHz 75Hz
1280 x 1024
63.981kHz
60.020 Hz
1280 x 1024
74.882 kHz
69.853 Hz
1280 x 1024
79.976 kHz
75.025 Hz
WXGA
1440 x 900
55.935 kHz
59.887 Hz
1440 x 900
55.469 kHz
59.901 Hz
1366 x 768
47.712 kHz
59.790Hz
1600 × 900 60.00kHz 60Hz
1600 × 900 70.463kHz 74.96Hz
1.3 New Features
20” WLED + Colour TN TFT Monitor ,With LED backlight ,
HDCP Support, XP/Vista
/Win7 Logo,
Digital Controls with 8 languages OSD;
Energy Star5.0, TCO 5.1 compli
ance
Lenovo Service Manual L2062W
6
2. Operation instruction
2.1 Connection
C
onnect the video cable from the video card of PC to the monitor..
The power cord should be connected
Press the power button to turn on the monitor, the power indicator will light up.
2.2 Control Buttons
Icon Control Description
1
Inp
ut se
lect
Switches the video input source.DVI/D-SUB
2
DDC-CI
Pressed till 10 seconds, will enable/disable the
DDC/CI.
Exit Exit current OSD return to last level.
3
Auto
Adjustment If there is no any OSD, it is auto configuration.
Decr
ease - adjusting
OSD, it will decrease current value of bar, or move to last
item of menu
.
4
NO
VO VISION If there is no any OSD,Direct access to Imange Properties
In
crease + adjustin
g
OSD
, it will increase current value of bar, or move to next
item of menu.
5
Menu
/Enter/OK
Activ
e main menu while no OSD display,enter next level
on
m
ain menu or sub menu status, or enter last level on
adjustment bar.Continued pressing 10 seconds will
lock
me
nu or un-lock menu
.
6
Po
wer Button Power ON/OFF,and power indicator(Blue and Orange
).
Lenovo Service Manual L2062W
7
2.3 OSD User mode adjustment
a)Hot key
Press
→, the figure is as shows
Press ←, the figure is as shows
Lenovo Service Manual L2062W
8
b)OSD Menu adjustment step s :
Lenovo Service Manual L2062W
9
Lenovo Service Manual L2062W
10
2.4 OSD Lock function
Press “MENU” button and hold 10s,OSD was locked.Again Press “MENU” button and hold >10s,OSD was unlocked.
Lenovo Service Manual L2062W
11
3.Interface description
3.1 VGA Interface description
Pin No. Description Pin No. Description
1. Red Input 9. +5VDC
2. Green Input 10. GND
3. Blue Input 11. GND
4. GND 12. SDA- DDC-Serial Data
5. Connection detect 13. H Sync
6. Red GND 14. V Sync
7. Green GND 15. SCL- DDC-Serial Clock
8. Blue GND
VGA Connector layout
15
6
10
11 15
3.2 DVI Connector
Pin No. Description Pin No. Description
1. TMDS Data 2- 13. TMDS Data 3+
2. TMDS Data 2+ 14. +5V Power
3. TMDS Data 2/4 Shied 15. Ground (for +5V)
4. TMDS Data 4- 16. Hot Plug Detect
5. TMDS Data 4+ 17. TMDS Data 0+
6. DDC Clock 18. TMDS Data 0-
7. DDC Data 19. TMDS Data 0/5 Shield
8. N.C. 20. TMDS Data 5-
9. TMDS Data 1- 21. TMDS Data 5+
10. TMDS Data 1+ 22. TMDS Clock Shield
11. TMDS Data 1/3 Shield 23. TMDS Clock+
12. TMDS Data 3- 24. TMDS Clock-
DVI Connector layout
Lenovo Service Manual L2062W
12
4. Panel Feature
The Panel is a 20.0 inch color TFT-LCD module—M200O3-LA3 with WLED backlight unit and 30pin 2ch-LVDS
inte
rface . this module supports 1600×900 mode and displays up to 16.7 millions colors.
4.1 General information
4.2 Absolute Maximum Ratings
4.3 El
ectrical Characteristics
a) TFT LCD module
b) Backlight unit (LED matrix is 11S4P)
Lenovo Service Manual L2062W
13
4.4 Optical Characteristics
4.5
Panel Block Diag
roam
Lenovo Service Manual L2062W
14
4.6 LVDS Connector pin Assignment
LED Connector: HN14061-2000-7H (Foxconn)or 3703K-F06N-11L(Entery).
Lenovo Service Manual L2062W
15
5.Block Diagram
5.1 LCD Block Diagram
5.2 MainBoard Block Diagram
DC-converter
71
5G4
497P
AC-DC
(
5V/12
V)
Po
wer Board
Main Board
715G4032M
Key board
VGA input
LED backlight
Panel LV
DS
AC supply
90
V-264V
LCD Block Diagram
Input signal
DVI input
Crystal 14.318MHZ
(X
401)
Panel Interface
(C
N406)
Scalar RTD2271W-GR Realtek
(Include ADC, OSD, MCU)
(U401)
D-Sub
C
onnector
(CN101)
EEPROM
Pm
25LD020
C
(
U403)
H sync
V sync
Key Board
Con
tro
l
(C
N401/402
)
Voltage converter
5V
5V 3.3V 1.8 V
DVI
C
onnector
(CN102)
From PC
Lenovo Service Manual L2062W
16
5.3 Power/ Inverter Board Block Diagram
Fuse EMI
Rectifier
Smoothing
Capa
citor
C
9
07
Transformer
T
901
MOS
Q901
IC-PWM
IC90
1
12V
R
ectifie
r
5V
R
ectifie
r
12V
5V
Sense
re
sisto
r
Vcc
R
ectifie
r
regulating
Sampling
PhotoCoupler
Vcc
14.5V DC
On/off
DIM
Q801
APM8005
FB802D801
L801
AC input
10
0-240V
CN804-
--
LED
U901- IC
OZ9
998
Current Sampling
Power part
Converter part
OVP
Lenovo Service Manual L2062W
17
5.4 Software Flow Chart
------J
ust for your reference.
Start
Initial_MCU
Check if DataBuffer Is blank
Check if Sum is chan
g
ed ?
To Write default values
Read parameter_from Buffer
PowerHandler
Init_GlobalVariables
Initial_MCU Device
while
InputTiming
ModeHandler
MenuHandler
DebugHandler
if standby mode?
Brightness
Contrast
Langua
ge
Inpu
tType
InputTimingStableCounter
OsdCou
nter
P
owerDownCounter
LED turn-on
Sho
w power on logo
if factory mode?
No signal message
UnsupportModeFlag
END
OSD Menu
Software Flow Chart
InputTiming
Phaes/Frequency
Image setup
Co
lor
Enter factory mode OSD
Y
N
Y
Lenovo Service Manual L2062W
18
6. Circuit Schematic
6.1 Main Board---715G4032M
+5V
VCC3.3
RX1+
DVI
03_DVI
DDCSCL2
DDCSDA2
RX1-
RX0+
RX2+
RX2-
RX1+
RXC-
RX0-
RXC+
DVI_CABLE_DET
EDID_WP
+5V
DVI5V
+5V
DVI_CABLE_DET
RXC+
DDCSDA2
V12S
RX0-
RX2-
+5V
VGA_CABLE_DET
DVI5V
PANEL I/O
05_PANEL I/ O
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
VLCD
RXC-
RX0+
D-SUB I/O
02_D-SUB I/O
DDCSDA1
DDCSCL1
R0+
R0-
G0-
B0+
B0-
G0+
AHS0
EDID_WP
VGA_CABLE_DET
SOG
+5V
AVS0
VGA_5V
EDID_WP
Power
06_POWER
+5V
VCC3.3
V12S
VLCD
Panel_ON
Adj_BACKLIGHT
on_BACKLIGHT
Audio_EN
Audio_DET
VGA_5V
SOG
DDCSCL2
G0+
G4032-M0D-000-0040-1-100527
R0+
EDID_WP
DDCSDA1
VLCD
V12S
SCA LER -RTD2271W-GR
04_SCALER
RX2+
RX2-
RX1+
RX1-
RX0+
RX0-
RXC+
RXC-
AHS0
B0-
B0+
G0-
G0+
R0-
R0+
Adj_BACKLIGH T
on_BACKLIGHT
DDCSDA1
DDCSCL1
Panel_ON
DDCSDA2
DDCSCL2
DVI_CABLE_DET
EDID_WP
VGA_CABLE_DET
SOG
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PB8
PB9
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PA8
PA9
+5V
VCC3.3
V12S
Audio_EN
Audio_DET
AVS0
DVI5V
VGA_5V
AHS0
DDCSCL1
VLCD
DVI5V
VCC3.3
G0-
+5V
B0-
R0-
VGA_5V
B0+
EDID_W P
RX1-
D
OTS TS190DELW
C
28Thursday, May 27, 2010
715G4032-M0D-000-0040
<
称爹
>
TOP
OEM MOD E L Size
Rev
Date
Sheet
of
TPV MOD EL
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
RX2+
Lenovo Service Manual L2062W
19
in
put part---VGA+DD
C
C147
47nF 16V
DET_VGA
R107
100R 1/16W 5%
GIN0-
R111
100R 1/16W 5%
R118
100R 1/16W 5%
G0- 5
AVS0 5
R121 100R 1/16W 5%
R114 22K 1/16W 5%
R142
470R 1/16W 5%
+5V4,5,7
U101
AT24C02BN-SH-T
1
2
3
45
6
7
8
A0
A1
A2
GNDSDA
SCL
WP
VCC
C103
5PF 50V
DDCSDA_A
RIN0-
VGA_5V5
VGA_CABLE_DET 5
C110
47nF 16V
R101
100R 1/16W 5%
+5V
EDID_W P
B0+ 5
C146
22pF 50V
RIN0
C109
5PF 50V
C101
220N16V
R141
0R05 1/10W
B0- 5
VSIN0
R113 4K7 1/16W 5%
B0+
CN101
DB15
1
6
2
7
3
8
4
9
5
11
12
13
14
15
10
17 16
C107
47nF 16V
R120 100R 1/16W 5%
R139
0R05 1/10W
VSIN0
BIN0-
C104
47nF 16V
GIN0
DDCSCL_A
G0+ 5
R104
100R 1/16W 5%
C114
100N16V
R119 0R05 1/16W
R115
0R05 1/16W
VSIN0
BIN0
ESD_VGA
RIN0
R110
75R 1/16W 1%
G0+
C108
47nF 16V
R122
2K2 1/16W 5%
HSIN0
R116
100R 1/16W 5%
ESD_VGA
RIN0
R109
100R 1/16W 5%
ESD_VGA
HSIN0
SOG 5
R103
0R05 1/16W
BIN0
GIN0
R0- 5
RIN0-
HSIN0
BIN0
C145
22pF 50V
DDCSDA1
G0-
C112
NC/22pF 50V
R105
100R 1/16W 5%
EDID_W P4,5
GIN0
C106
5PF 50V
DDCSDA_A
R117
75R 1/16W 1%
R123
2K2 1/16W 5%
AHS0 5
DDCSCL_A
DDCSCL15
C105
47nF 16V
R0-
VGA_CABLE_DET
U102
AOZ8902CIL
1
2
3 4
5
6
CH1
VN
CH2CH3
VP
CH4
R112 4K7 1/16W 5%
VGA_5V
ZD101
RLZ5.6B
R0+ 5
DDCSCL1
D101
BAV70
3
1
2
R0+
DDCSDA1
DET_VGA
GIN0-
BIN0-
VGA_5V
C102
47nF 16V
B0-
DDCSCL1
C113
100N16V
C111
NC/22pF 50 V
R140
0R05 1/10W
DDCSDA15
VGA_5V
R143 NC/1M 1/16W 5%
U103
AOZ8902CIL
1
2
3 4
5
6
CH1
VN
CH2CH3
VP
CH4
R108
0R05 1/16W
R106
75R 1/16W 1%
Lenovo Service Manual L2062W
20
DVI+DDC
C120
NC/1000pF 50V
G4032-M0D-000-0040-1-100527
FB101 0R05 1/10W
EDID_W P 3,5
DAT0-
ESD_DVI
ESD_DVI
ESD_DVI
R131 10R 1/16W 5%
RXC+ 5
RX1+ 5
R136 10R 1/16W 5%
SDA_DVI
DDCSCL2 5
R137 10R 1/16W 5%
CN102
JACK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
26
25
DAT2-
DAT2+
2/4shield
DAT4-
DAT4+
DDC SCL
DDC SDA
VSYNC
DAT1-
DAT1+
1/3shield
DAT3-
DAT3+
+5V
SYNC G N D
HPD
DAT0-
DAT0+
0/5shield
DAT5-
DAT5+
clk shield
clk+
clk-
GND
GND
R128 4K7 1/16W 5%
DDCSD A2 5
ESD_DVI
DVI5V5
DDC_WP
D
OTS TS190DELW
B
48Thursday , J une 03 , 2010
715G4032-M0D-000-0040
<
称爹
>
DVI
OEM MOD E L Size
Rev
Date
Sheet
of
TPV MOD E L
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
R127 1K 1/16W
C115
100N16V
ESD_DVI
DAT2+
U106
AOZ8902CIL
1
2
3 4
5
6
CH1
VN
CH2CH3
VP
CH4
DAT2-
R132 10R 1/16W 5%
RX2- 5
+5V3,5, 7
RX2+ 5
ESD_DVI
C116
220N16V
U107
AOZ8902CIL
1
2
3 4
5
6
CH1
VN
CH2CH3
VP
CH4
R129 4K7 1/16W 5%
R125 100R 1/16W 5%
R134 10R 1/16W 5%
DVI5V
HPD
U105
AT24C02BN-SH-T
1
2
3
45
6
7
8
A0
A1
A2
GNDSDA
SCL
WP
VCC
C119
100N16V
D102
BAV70
3
1
2
DAT0+
R138 10R 1/16W 5%
RXC- 5
SCL_DVI
R126 100R 1/16W 5%
RX0- 5
RX0+ 5
DAT1+
C118
100N16V
ZD102
RLZ5.6B
DVI5V
C117
100N16V
DCLK-
R135 10R 1/16W 5%
DCLK+
DAT1-
RX1- 5
DET_DVI
U104
AOZ8902CIL
1
2
3 4
5
6
CH1
VN
CH2CH3
VP
CH4
R133 10R 1/16W 5%
R130
22K 1/16W 5%
DVI_CABLE_DET 5
DVI5V+5V
Lenovo Service Manual L2062W
21
Power part---5V/3.3V/1.8V
+5V
C708
NC/33P50V
V12S 5
R712 NC/10 0R 1/ 16W 5%
+5V
VLCD
R705
22K 1/16W 5%
VLCD 6
VCC3.3
Panel_ON5
Q703
NC/PMBS3904
+
C711
NC/100uF /16V
Audio_DET 5
C703
100N16V
on_BACKLIGH T 5
R710 NC/0R 0 5 1/ 16W
R717 22K 1/16W 5%
U701
3 2
1
VIN VOUT
GND
C707
100N16V
C713
NC/100N 16V
+5V
R719 NC/100R 1/ 1 6W 5%
+5V
Q704
AO4449 -7A/-30V
123
4
876
5
SSS
G
DDD
D
R718
NC/10K 1/ 16W 5%
VCC3.3
G4032-M0D-000-0040-1-100527
C705
NC/10uF 10V
VCC3.3
C706
100N16V
R711
NC/100R 1/ 1 6W 5%
C714
NC/100N 16V
U707
3 2
1
VI VO
GND
C717
220N16V
R703
10K 1/16W 5%
R704
10K 1/16W 5%
R706
NC/10K 1/16W 5%
R701
4K7 1/16W 5%
D
OTS TS190DELW
B
78Thursday , J uly 22, 2 010
715G4032-M0D-000-0040
<
称爹
>
POWER
<Variant Name>
OEM MOD E L Size
Rev
Date
Sheet
of
TPV MOD EL
PCB NAME
称爹
T P V ( Top Victory Electronics Co . , Ltd. )
Key Component
絬 隔 瓜 絪 腹
VCC3.3
DIM
Q701
PMBS3904
C701
100N16V
VCC3.3
C712
NC/100N 16V
R714
4K7 1/16W 5%
R708
NC/4K7 1/ 16 W 5%
CN701
CONN
1
2
3
4
5
6
7
8
9
C716
NC/10uF 10V
U702
NC/G1084- 33T43Uf
23
1
VOUTVIN
GND
R707
NC/5. 1 OH M +-5% 2WS
C709
NC/100N 16V
+5V 3,4 ,5
Audio_DET2
Q702
NC/PMBS3904
V12S
R702 100R 1/16W 5%
TO-252
ON/OFF
R709
NC/10K 1/16W 5%
Adj_BACKLIGH T 5
U703
3 2
1
VI VO
GND
TO252
R757
NC/10K 1/ 16 W 5%
R716
NC
Audio_EN 5
R713
10K 1/16W 5%
R715
100K 1/16W 5%
VCC3.3 5
Audio_DET3
C704
100N16V
Audio_DET1
+5V3,4,5
+
C702
100uF16V
VCC3.3
+5V
Audio_EN1
C715
220N16V
Q705
NC/AO3401
+
C710
NC/100uF 16V
Q706
PMBS3904
Loading...