LG 42PG1000 User Manual

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LGE Internal Use OnlyCopyright©2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
6. Component input ADC
6-1 . Component Gain/Offset Adjustment
(1) Convert to PC in Input-source(refer to I2C command at page 10)
(2) Signal equipment displays
1) Impress Resolution 480i
Model : 209 in pattern Generator(480i Mode)
Pattern : 65 in pattern Generator(MSPG-925 Series)
2) Impress Resolution 1080i
Model : 223 in pattern Generator(1080i Mode)
Pattern : 65 in pattern Generator(MSPG-925 Series)
6-2. Confirmation
(1) We confirm whether “0xB3(480i)/0xBC(1080i)” address
of EEPROM “0xA2” is “0xAA” or not.
(2) If “0xB3(480i)/0xBC(1080i)” address of EEPROM “0xA2”
isn’t “0xAA”, we adjust once more.
(3) We can confirm the ADC values from
“0xAD~0xB2(480i)/0xB6~BB(1080i)” address in a page
“0xA2”.
* Manual ADC process using Service Remocon. After enter
Service Mode by pushing “ADJ” key, execute “ADC Adjust”
by pushing “
G“ key at “ADC CALIBRATION : RGB-C”.
7. POWER PCB Assy Voltage
Adjustments (Va, Vs Voltage adjustments)
7-1. Test Equipment : D.M.M. 1EA
7-2.Connection Diagram for Measuring
: refer to Fig.3
7-3. Adjustment Method
(1) Va Adjustment
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D.M.M to Va pin of P811, connect
- terminal to GND pin of P811.
3) After turning VR901, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top.
(Deviation; ±0.5V)
(2) Vs Adjustment
1) Input signal : RF noise signal.
2) Connect + terminal of D.M.M to Vs pin of P811, connect
– terminal to GND pin of P811.
3) After turning VR951, voltage of D.M.M adjustment as
same as Va voltage which on label of panel right/top.
(Deviation; ±0.5V)
Each PCB assembly must be checked by check JIG set.
(Because power PCB Assembly damages to PDP Module,
especially be careful)
(Fig.2)
(Fig.3) Connection diagram of power adjustment for measuring

LG 42PG1000 Specifications

General

Depth	83.6 mm
Height	677 mm
Weight	24000 g
Pixel pitch	0 mm
Aspect ratio	16:9
Audio system	SRS TruSurround XT
Product color	Black
LED indicators	Stand-by
RMS rated power	14 W
Display diagonal	42 \
Depth (with stand)	308 mm
Display brightness	1500 cd/m²
Display resolution	1024 x 768 pixels
Display technology	Plasma
Width (with stand)	1040 mm
Height (with stand)	731 mm
Weight (with stand)	26000 g
Supported video modes	1080i, 1080p, 480i, 480p, 576i, 576p, 720p
USB 2.0 ports quantity	USB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Contrast ratio (dynamic)	30000:1
Contrast ratio (typical)	-
Analog signal format system	PAL, SECAM
Power consumption (standby)	0.8 W
Power consumption (typical)	310 W