DOWNLOAD LG 42LV3400-ZG / 42LV340A-ZG / 42LV340N-ZG / 42LV340U-ZG (CHASSIS:LD01M) Service Manual ↓ Size: 5.61 MB | Pages: 41 in PDF or view online for FREE

Model
42LV3400-ZG 42LV340A-ZG 42LV340N-ZG 42LV340U-ZG (CHASSIS:LD01M)
Pages
41
Size
5.61 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
42lv3400-zg-42lv340a-zg-42lv340n-zg-42lv340u-zg-ch.pdf
Date

LG 42LV3400-ZG / 42LV340A-ZG / 42LV340N-ZG / 42LV340U-ZG (CHASSIS:LD01M) Service Manual ▷ View online

- 8 -
7. HDMI Input (PC/DTV)
(1) DTV Mode
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1.
720*400 31.468 
70.08 
28.321 
HDCP
2.
640*480 31.469 
59.94 
25.17
VESA  HDCP
3. 800*600
37.879
60.31 
40.00 
VESA 
HDCP
4.
1024*768
48.363
60.00 65.00 
VESA(XGA)
HDCP
5.
1360*768 47.72 59.8 84.75
WXGA  HDCP
6.
1280*720
45
60
74.25
HDCP
7.
1280*1024 63.595
60.02
108.875  SXGA
HDCP
8.
1920*1080
67.5
60
148.5
WUXGA
HDCP
(2)  PC Mode
No.
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz)
Proposed
Remark
1.
720*480 
31.469 / 31.5 
59.94 / 60
27.00 / 27.03
SDTV 480P
2.
720*576 31.25 
50
54 
SDTV 
576P
3.
1280*720 37.500 
50
74.25  HDTV 
720P
4.
1280*720 
44.96 / 45 
59.94 / 60
74.17 / 74.25 
HDTV 720P
5.
1920*1080 
33.72 / 33.75 
59.94 / 60
74.17 / 74.25 
HDTV 1080I
6.
1920*1080 28.125 50.00
74.25 
HDTV 
1080I
7.
1920*1080 
26.97 / 27 
23.97 / 24
74.17 / 74.25 
HDTV 1080P
8.
1920*1080
33.716 / 33.75
29.976 / 30.00
74.25
HDTV 1080P
9.
1920*1080 56.250 50
148.5
HDTV 
1080P
10.
1920*1080 
67.43 / 67.5 
59.94 / 60
148.35 / 148.50 
HDTV 1080P
- 9 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to all of the LCD TV with
LD01M chassis.
2. Designation
1) The adjustment is according to the order which is designated
and which must be followed, according to the plan which can
be changed only on agreeing.
2) Power Adjustment: Free Voltage
3) Magnetic Field Condition: Nil.
4) Input signal Unit: Product Specification Standard
5) Reserve after operation: Above 5 Minutes (Heat Run)
Temperature : at 25 ºC ± 5 ºC 
Relative humidity : 65 % ± 10 %
Input voltage : 220 V, 60 Hz
6) Adjustment equipments: Color Analyzer (CA-210 or CA-
110), Pattern Generator(MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, Service remote control.
7) Push the “IN STOP” key - For memory initialization.
3. Main PCB check process
* APC - After Manual-Insert, executing APC
* Boot file Download
1) Execute ISP program “Mstar ISP Utility” and then click
“Config” tab.
2) Set as below, and then click “Auto Detect” and check “OK”
message. If “Error” is displayed, Check connection between
computer, jig, and set.
3) Click “Read” tab, and then load download file(XXXX.bin) by
clicking “Read”.
4) Click “Connect” tab. If “Can’t” is displayed, check connection
between computer, jig, and set.
5) Click “Auto” tab and set as below.
6) Click “Run”.
7) After downloading, check “OK” message.
* USB DOWNLOAD(*.epk file download)
1) Put the USB Stick to the USB socket.
2) Automatically detecting update file in USB Stick
- If version of update file in USB Stick is Lower, it didn’t
work. But version of update file is Higher, USB data is
automatically detecting.
3) Show the message “Copying files from memory”
(4) Updating is starting.
(5) After updating is complete, the TV will restart automatically.
(6) If TV turns on, check your updated version and Tool option. 
(refer to the next page about tool option)
* If downloading version is higher than your TV have, TV
can lost all channel data. In this case, you have to
channel recover. If all channel data is cleared, you didn’t
have a DTV/ATV test on production line.
Case1 : Software version up
1. After downloading S/W by USB, TV set will reboot
automatically.
2. Push “In-stop” key.
3. Push “Power on” key.
4. Function inspection
5. After function inspection, Push “In-stop” key.
Case2 : Function check at the assembly line
1. When TV set is entering on the assembly line, Push
“In-stop” key at first.
2. Push “Power on” key for turning it on.
-> If you push “Power on” key, TV set will recover
channel information by itself.
3. After function inspection, Push “In-stop” key.
          filexxx.bin 
(4) 
(7) 
.OK 
(5) 
(6) 
(1) 
fi lexxx.bin 
(2) 
(3) 
Please Check the Speed : 
To use speed between 
from 200KHz  to 400KHz  
* After downloading, have to adjust Tool Option again.
(1) Push “IN-START” key in service manual control.
(2) Select ‘Tool Option 1’ and push ‘OK’ key.
(3) Punch in the number. (Each models has their number.)
(4) Correction Tool option is completed. 
3.1. ADC Process
G
’ key at “7. ADC
Calibration”.
<Caution> Using ‘P-ONLY’ key of the Adjustment remote
control, power on TV.
* ADC Calibration Protocol (RS232)
Adjust Sequence
• aa 00 00 [Enter Adjust Mode]
• xb 00 40 [Component1 Input (480i)]
• ad 00 10 [Adjust 480i Comp1]
• xb 00 60 [RGB Input (1024*768)]
• ad 00 10 [Adjust 1024*768 RGB]
• aa 00 90 End Adjust mode
* Required equipment : Adjustment Remote control
3.2. EDID Download
1) After Enter Service Mode by pushing ‘ADJ’ key,
2) Enter EDID D/L mode.
3) Enter ‘START’ by pushing ‘OK’ key.
<Caution> Never connect HDMI & D-sub cable when EDID
download
3.3. EDID data
(1) FHD RGB EDID data
(2) FHD HDMI EDID data
(3) Detail EDID Options are below
a. Product ID
b. Serial No: Controlled on production line.
c. Month, Year: 
Week : ‘01’ -> ‘01’
Year : ‘2011’ -> ‘15’ fix
d. Model Name(Hex): 
e. Checksum: Changeable by total EDID data.
f. Vendor Specific(HDMI)
- 10 -
ADC Calibration
ADC Comp 480i
NG
ADC Comp 1080p
NG
ADC RGB
NG
Start
Reset
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. Area Option
7. ADC Calibration
8. White Balance
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
No
Item CMD1 CMD2 Data0
Enter Adjust
Adjust
A
A
0
0
When transfer the ‘Mode In’,
Mode
‘Mode In’
Carry the command.
ADC adjust ADC Adjust
D
1
0
Automatically adjustment
(The use of a internal pattern)
HDMI1
OK
HDMI2
OK
HDMI3
OK
RGB
OK
Start
Reset
EDID D/L
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. Area Option
7. ADC Calibration
8. White Balance
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Setting
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00
00
FF
FF
FF
FF
FF
FF
00
1E
6D
a
b
10
c
01
03
80
10
09
78
0A
EE
91
A3
54
4C
99
26
20
0F
50
54
A1
08
00
71
4F
81
80
01
01
01
01
01
01
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
A0
5A
00
00
00
1E
1B
21
50
A0
51
00
1E
30
50
48
88
35
00
A0
5A
00
00
00
1C
00
00
00
FD
00
3A
60
3E
1E
53
10
00
0A
20
20
20
20
20
20
d
70
d
01
e
80
02
03
26
F1
4E
10
1F
84
13
05
14
03
02
12
20
21
90
22
15
01
26
15
07
50
09
57
07
f
A0
f
E3
05
03
01
01
1D
80
18
71
1C
16
20
58
2C
B0
25
00
A0
5A
00
00
00
9E
01
1D
00
72
51
D0
1E
20
C0
6E
28
55
00
A0
5A
00
00
00
1E
02
3A
80
18
71
38
D0
2D
40
58
2C
45
00
A0
5A
00
00
00
1E
01
1D
00
BC
E0
52
D0
1E
20
B8
28
55
40
A0
5A
00
00
00
1E
00
00
F0
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
e
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
00
00
FF
FF
FF
FF
FF
FF
00
1E
6D
a
b
10
c
01
03
68
10
09
78
0A
EE
91
A3
54
4C
99
26
20
0F
50
54
A1
08
00
81
80
61
40
45
40
31
40
01
01
30
01
01
01
01
01
01
02
3A
80
18
71
38
2D
40
58
2C
40
45
00
A0
5A
00
00
00
1E
66
21
50
B0
51
00
1B
30
50
40
70
36
00
A0
5A
00
00
00
1E
00
00
00
FD
00
3A
60
3E
1E
53
10
00
0A
20
20
20
20
20
20
d
70
d
00
e
Model Name
HEX
EDID Table
DDC Function
HD/FHD Model
0001
01 00
Analog/Digital
MODEL
MODEL NAME(HEX)
LG TV
00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20
EDID C/S data
FHD
HD
HDMI
RGB
HDMI
RGB
Check sum Block 0
E2
ED
B4
CD
(Hex)
99(HDMI1)
75(HDMI1)
Block 1 89(HDMI2)
65(HDMI2)
79(HDMI3)
55(HDMI3)
INPUT
MODEL NAME(HEX)
HDMI1 67030C001000B82D
HDMI2 67030C002000B82D
HDMI3
67030C003000B82D
3.4. Function Check
(1) Check display and sound
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV
3) COMPONENT1/2 (480i)
4) RGB (PC : 1024 x 768 @ 60hz)
5) HDMI
6) PC Audio In 
* Display and Sound check is executed by remote control.
<Caution> Not to push the INSTOP key after completion if the
function inspection.
4. Total Assembly line process
4.1. Adjustment Preparation
· W/B Equipment condition
CA210
- CCFL/EEFL -> CH 9, Test signal : Inner pattern(80 IRE)
- LED -> CH 14, Test signal : Inner pattern(80 IRE)
· Above 5 minutes H/run in the inner pattern. (“power on” key
of adjustment remote control)
· Edge LED W/B Table in process of aging time(Only LGD
Module)
CA210 : CH14, Test signal : Inner patter (80 IRE)
* Connecting picture of the measuring instrument
(On Automatic control)
Inside PATTERN is used when W/B is controlled. Connect to
auto controller or push Adjustment R/C POWER ON -> Enter
the mode of White-Balance, the pattern will come out
* Auto-control interface and directions
1) Adjust in the place where the influx of light like floodlight
around is blocked. (illumination is less than 10 lux).
2) Adhere closely the Color Analyzer (CA210) to the module
less than 10cm distance, keep it with the surface of the
Module and Color Analyzer’s Prove vertically.(80º ~ 100º).
3) Aging time
- After aging start, keep the power on (no suspension of
power supply) and heat-run over 15minutes.
- Using ‘no signal’ or ‘full white pattern’ or the others, check
the back light on.
• Auto adjustment Map(RS-232C)
RS-232C COMMAND
[CMD
ID DATA]
Wb
00
00
White Balance Start
Wb
00
ff
White Balance End
** Caution **
Color Temperature : COOL, Medium, Warm. 
One of R Gain/G Gain/ B Gain should be kept on 0xC0, and
adjust other two lower than C0.
(when R/G/B Gain are all C0, it is the FULL Dynamic Range
of Module)
* Manual W/B process using adjusts Remote control.
• After enter Service Mode by pushing “ADJ” key,
• Enter White Balance by pushing “
G
” key at “8. White
Balance”.
* After done all adjustments, Press “In-start” key and
compare Tool option and Area option value with its BOM, if
it is correctly same then unplug the AC cable. If it is not
same, then correct it same with BOM and unplug AC cable.
For correct it to the model’s module from factory Jig model.
* Push the “IN STOP” key after completing the function
inspection. And Mechanical Power Switch must be set “ON”.
- 11 -
Cool 13,000
K
X=0.269(±0.002)
Y=0.273(±0.002)
<Test Signal>
Medium
9,300
K
X=0.285(±0.002)
Inner pattern
Y=0.293(±0.002)
(204 gray,80 IRE)
Warm
6,500
K
X=0.313(±0.002)
Y=0.329(±0.002)
Aging Time
Cool
Medium
Warm
GP2R
(Min.)
X
Y
X
Y
X
Y
269
273
285
293
313
329
1
0-2
279
288
295
308
319
338
2
3-5
278
286
294
306
318
336
3
6-9
277
285
293
305
317
335
4
10-19
276
283
292
303
316
333
5
20-35
274
280
290
300
314
330
6
36-49
272
277
288
297
312
327
7
50-79
271
275
287
295
311
325
8
80-149
270
274
286
294
310
324
9
Over 150
269
273
285
293
309
323
Full White Pattern
COLOR
ANALYZER
TYPE: CA-210
RS-232C Communication
CA-210
RS-232C COMMAND MIN
CENTER
MAX
[CMD ID DATA]
(DEFAULT)
Cool
Mid
Warm
Cool
Mid
Warm
R Gain
jg 
Ja 
jd 
00
172 
192 
192
255
G Gain 
jh 
Jb
je 
00
172 
192 
192
255
B Gain 
ji 
Jc 
jf
00
192 
192 
172 
255
R Cut 
64 
64 
64 
128
G Cut 
64 
64 
64 
128
B Cut 
64 
64 
64 
128
White Balance
Color  Temp.
Cool
R-Gain
172
G-Gain
172
B-Gain
192
R-Cut
64
G-Cut
64
B-Cut
64
Test-Pattern
Backlight
ON
100
Reset
To Set
EZ ADJUST
0. Tool Option1
1. Tool Option2
2. Tool Option3
3. Tool Option4
4. Tool Option5
5. Country Group
6. Area Option
7. ADC Calibration
8. White Balance
9. 10 Point WB
10. Test Pattern
11. EDID D/L
12. Sub B/C
13. Touch Sensitivity Settin 
Page of 41
Display

Click on the first or last page to see other 42LV3400-ZG / 42LV340A-ZG / 42LV340N-ZG / 42LV340U-ZG (CHASSIS:LD01M) service manuals if exist.