DOWNLOAD LG 19LS4R (CHASSIS:LP69C) Service Manual ↓ Size: 4.36 MB | Pages: 35 in PDF or view online for FREE

Model
19LS4R (CHASSIS:LP69C)
Pages
35
Size
4.36 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / LCD
File
19ls4r-chassis-lp69c.pdf
Date

LG 19LS4R (CHASSIS:LP69C) Service Manual ▷ View online

- 9 -
9. RGB input ( DTV )
No
Resolution
H-freq(kHz)
V-freq.(kHz)
Pixel clock(MHz)
Proposed
1
720*480
31.47
59.94
27.000
SDTV 480P
2
720*480
31.50
60.00
27.027
SDTV 480P
3
720*576
31.25
50.00
27.000
SDTV 576P
4
1280*720
37.5
50.00
74.250
HDTV 720P 50Hz
5
1280*720
44.96
59.94
74.176
HDTV 720P
6
1280*720
45.00
60.00
74.250
HDTV 720P
7
1920*1080
33.72
59.94
74.176
HDTV 1080I
8
1920*1080
33.75
60.00
74.250
HDTV 1080I
9
1920*1080
28.125
50.00
74.250
HDTV 1080I 50Hz
11. HDMI/DVI input (DTV)
No
Resolution
H-freq(kHz)
V-freq.(kHz)
Pixel clock(MHz) Proposed
1.
720*480
31.47
59.94
27.000
SDTV 480P
2.
720*480
31.50
60.00
27.027
SDTV 480P
3.
720*576
31.25
50.00
27.000
SDTV 576P
4.
1280*720
37.5
50.00
74.250
HDTV 720P 50Hz
5.
1280*720
44.96
59.94
74.176
HDTV 720P
6.
1280*720
45.00
60.00
74.250
HDTV 720P
7.
1920*1080
33.72
59.94
74.176
HDTV 1080I
8.
1920*1080
33.75
60.00
74.250
HDTV 1080I
9.
1920*1080
28.125
50.00
74.250
HDTV 1080I 50Hz
10. HDMI/DVI input (PC)
No
Resolution
H-freq(kHz)
V-freq.(Hz)
Pixel clock(MHz) Proposed
Remark
1
720*400
31.469
70.08
28.32
DOS
2
640*480
31.469
59.94
25.17
VESA(VGA)
3
640*350
31.468
70.090
25.175
DOS
4
800*600
37.879
60.31
40.00
VESA(SVGA)
5
1024*768
48.363
60.00
65.00
VESA(XGA)
6
1280*1024
63.981
60.02
108.0
VESA(WXGA)
7
1440*900
55.5
59.90
88.75
WXGA+
19LS4R-ZA only
8
1680*1050
65.290
59.954
146.25
WXGA+
22LS4R-ZA only
- 10 -
ADJUSTMENT INSTRUCTION
1. Application Range
This specification sheet is applied to 19”/ 22” LCD TV which is
manufactured in TV (or Monitor) Factory or is produced on the
basis of this data.  
2. Specification
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 30 Minutes 
6) Adjustment equipments: Color Analyzer(CA-210 or CA-
110), Pattern Generator (MSPG-925L or Equivalent), DDC
Adjustment Jig equipment, SVC remote control
3. Main PCB check process
* APC - After Manual-Insult, executing APC
3.1. 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 display “Error”, Check connect computer, jig, and set.
3) Click “Connect” tab.
If display “Can’t ”, Check connect computer, jig, and set.
4) Click “Read” tab, and then load download file(XXXX.bin) by
clicking “Read”.
5) Click “Auto” tab and set as below
6) click “Run”.
7) After downloading, check “OK” message.
3.2. ADC Process
(1) PC input ADC
1) Auto RGB Gain/Offset Adjustment
- Convert to PC in Input-source
- Signal equipment displays
Output Voltage : 700 mVp-p
Impress Resolution XGA (1024x 768 @ 60Hz)
Model : 107   in Pattern Generator
Pattern : 29 in Pattern Generator (MSPG-925 Series)
[gray pattern that left & right is black and center is
white signal (Refer below picture)].
- Adjust by commanding AUTO_COLOR _ADJUST
(0xF1) 0x00 0x02 instruction.
2) Confirmation
- We confirm whether “0x8C” address of EEPROM
“0xB4” is “0xAA” or not.
- If “0x8C” address of EEPROM “0xB4” isn’t “0xAA”, we
adjust once more.
- We can confirm the ADC values from “0x00~0x05
addresses in a page “0xB4”
* Manual ADC process using Service Remote control.
After enter Service Mode by pushing “INSTART” key,
execute “Auto-RGB” by pushing “
G
” key at “Auto-
RGB”.
(2) COMPONENT input ADC
1) Component Gain/Offset Adjustment
- Convert to Component in Input-source
- Signal equipment displays
Impress Resolution  480P
MODEL :212     
in Pattern Generator
(480p Mode,  Y : 100%, Pb/Pr : 75%)
PATTERN : 08 in Pattern Generator
(MSPG-925 Series)
filexxx.bin
(6)
(7)  .......OK
(5)
<Adjustment pattern (PC)>
- 11 -
- Adjust by commanding AUTO_COLOR_ADJUST
(0xF1) 0x00 0x02 instruction.
2) Confirmation
- We confirm whether “0x8E” address of EEPROM
“0xB4” is “0xAA” or not.
- If “0x8E” address of EEPROM “0xB4” isn’t “0xAA”, we
adjust once more.
- We can confirm the ADC values from “0x00~0x05
addresses in a page “0xB4”.
3.3. Function Check
A
Check display and sound 
- Check Input and Signal items. (cf. work instructions)
1) TV
2) AV1 (SCART)
3) AV2 (CVBS/ S-Video)
4) COMPONENT (480P)
5) RGB (PC : 1024 x 768 @ 60hz)
6) HDMI
7) PC Audio In and H/P Out
* Display and Sound check is executed by Remote control.
4. Total Assembly line process
4.1. Adjustment Preparation
(1) Above 30 minutes H/run in RF no signal 
(2) 15 Pin D-Sub Jack is connected to the signal of Pattern
Generator.
4.2. Confirm color coordinate of RGB
(1) Set Input to RGB.
(2) Input signal : (1440 x 900 @ 60Hz) Full white 216/255 gray
level (100 IRE, Model : 112, Pattern : 4 at MSPG925L)
(3) Set CSM : Cool
(4) Confirm whether x = 0.283±0.03, y = 0.298±0.03 or not. 
4.3. Confirm color coordinate of AV2
(1) Set Input to AV2
(2) Input signal : CVBS, PAL @ 50Hz
Full white 216/255 gray level (85 IRE, Model : 202, Pattern
: 78 at MSPG925L)
(3) Set PSM : Dynamic / CSM : Cool
(4) Confirm whether x = 0.283±0.03, y = 0.298±0.03 or not.
4.4. Confirm color coordinate of component
(1) Set Input to COMPONENT.
(2) Input signal : 480P
Full white 216/255 gray level (85 IRE Model : 212, Pattern :
78 at MSPG925L)
(3) Set PSM : Dynamic / CSM : Cool
(4) Confirm whether x = 0.283±0.03, y = 0.298±0.03 or not.
4.5. Other quality 
A
Confirm that each items satisfy under standard condition
that was written product spec.
A
Confirm Video and Sound at each source.
(1) AV
1) Select input AV1 and whether picture is displayed or not.
- SCART output displayed or not.
2) Select input AV2 (S-video) and whether picture is
displayed or not
3) Select input AV2 (CVBS) and whether picture is
displayed or not
(2) TV
- Select input TV and check below item 
* In Gumi Factory 
C05 (E05)  – TELETEXT Function Check 
; (Applicable to the model that has Teletext code set-up
item in Product spec)
C07 (E07)  – Nicam DUAL Check.
C52 (E52)  – Nicam Stereo Check.
Refer to “7.Preset CH information”.
(3) RGB
- Select input RGB and whether picture is displayed or not.
(4) COMPONENT
- Select input COMPONENT and whether picture is
displayed or not.
(5)HDMI
- Select input HDMI and whether picture is displayed or not
4.6. DPM operation confirmation
- Check if Power LED Color and Power Consumption operate
as standard. 
(1) Set Input to RGB and connect D-sub cable to set.
(2) Measurement Condition : 230V@ 50Hz (Analog)
(3) Confirm DPM operation at the state of screen without
Signal
4.7 DDC EDID Write
1) Connect D-sub Signal Cable to D-Sub Jack.
2) Connect HDMI Signal Cable to HDMI Jack.
3) Write EDID DATA to EEPROM(24C02) by using DDC2B
protocol.
4) Check whether written EDID data is correct or not. (refer
to Product spec).
(1) 19LS4R EDID DATA
1) ANALOG DATA 128Byte
2) DIGITAL DATA 256Byte
a. All Data : HEXA Value
b. Changeble Data
* Serial No : Controlled/ Data : 01
** Month : Controlled/ Data :00
*** Year : Controlled
**** Check sum
4.8. HDCP SETTING
(High-Bandwidth Digital Contents Protection)
1) Connect D-sub Signal Cable to D-Sub Jack.
2) Input HDCP key with HDCP-key- in-program.
3) HDCP Key value is stored on EEPROM(AT24C64) which is
E00~F20 addresses of  0xBC~0xBE page.
4) AC off/ on and on HDCP button of MSPG925 and confirm
whether picture is displayed or not of using MSPG925.
5) HDCP Key value is different among the sets.
4.9. Outgoing condition Configuration
1) After all function test., press IN-STOP Key by SVC Remote
control. And Make Ship Condition. 
2) When pressing IN-STOP key by SVC remote control,
Green and red LED are blinked alternatively. And then
Automatically turn off. (Must not AC power OFF during
blinking)
- Confirm whether is normal or not when  between power
board's ac block and GND is impacted on 1.5kV(dc) or
2.2kV(dc) for one second.
4.11 Option data setting (SVC OSD setting) 
(1) PAL Model (Change by Suffix)
- 12 -
Option1
1
200PR
No
2
ACMS
YES
3
TEXT
FLOF
TOP / FLOF
4
CH+AU
0
0 : Except below area
1 : China, Australia
5
BOOSTER
No
Option2
1
SYS
No
BG/IDK/L
2
A2 ST
YES
Acting FM-ST after checking Nicam
3
I II SAVE
No
4
HDEV
No
5
V-CURVE
No
6
MONO
No
Option3
1
KEY-TYPE
2
2 : 8 key
Option4  
1
Default Lang
3
2
Lang
0
English  Deutsch  French  Italiano
Spanish  Nederlands  Svenska  
Norsk  Dansk  Suomi
Portuguese  Romaneste  Polski  
Magyar  Chesky  
3
T-Lang
0
AUSTRIA  BULGARIA  CROATIA
CZECH  DENMARK  ENGLAND
ESTONIA  FINLAND  FRANCE
GERMANY  GREECE  HUNGARY
ITALY  LATVIA  NETHERLANDS
NORWAY  POLAND  PORTUGAL
RUMANIA  RUSSIA  SERBIA
SLOVAKIA  SLOVENIA  SPAIN
SWEDEN  SWITZERLAND
TURKEY  ARAB  HEBREW  Others
Option5
1
2 HR-OFF
Yes
2
TV-LINK-TUNER
No
3
FACTORY MODE
Yes
4
CHANNEL-MUTE
Yes
No.
Item
Condition
Remark
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