20HIZ2 (CHASSIS:LP69F) - LG TV Service Manual (repair manual). Page 9

- 9 -

These documents is applied to 20" LCD TV(chassis : LP69F)

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, Service remote control.

* APC - After Manual - Insert, executing APC

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 “Read” tab, and then load download file(XXXX.bin) by

clicking “Read”.

4) Click “Auto” tab and set as below, and then click “Run”.
5) After downloading, check “OK” message.

: Check Input and Signal items (cf. work instruction)

(1) TV
(2) AV1 (SCART)
(3) AV2 (CVBS/ S-Video)
(4) “Speaker-out” Sound Out

* Display and Sound check is executed by Remote control.

(1) Above 30 minutes Heat-run in RF no signal 
(2) 15 Pin D-Sub Jack is connected to the signal of Pattern

Generator.

(1) Apply signal of MSPG-1025D, SCART mode, Model 2,

Pattern 19(White/Black top and bottom) with SCART cable.

(2) Change input source to AV1 and check if SCART RGB

signal is properly displayed.

(3) Press Instart button on service remote control.
(4) Position cursor on Auto-RGB item. Then press ‘Vol up’
(5) Check if the OSD changes like “Auto-RGB Process ->

OK”. OK means Auto ADC done successfully.

(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 = 0.276±0.03, y = 0.283±0.03 or not.

(1) Confirm that each items satisfy under standard condition

that was written product spec..

(2) Confirm Video and Sound at each source.

1) AV

(a) Select input AV1 and check whether picture is

displayed or not. - Check whether SCART output
picture is displayed or not.

(b) Select input AV2(S-video) and check whether picture

is displayed or not.

(c) Select input AV2(CVBS) and check whether picture

is displayed or not.

2) TV : Select input TV and check below item.(In Gumi factory)

C05(E05) – Check TELETEXT Function (Applicable

to the model that has Teletext code set-
up item in Product spec)

C07(E07) – Check Nicam DUAL
C52 (E52) – Check Nicam Stereo
* Refer to “6.Preset CH information” 

(1) Check if Power LED Color and Power Consumption

operate as standard.

(2) Measurement Condition : 230V~, 50Hz (Analog)
(3) Confirm Stand-by operation.

(2)                            OK

(1)  

(5)  

(5)  

(6)  .......... OK

 

(4)  

                    filex x x .bin