LG 60PM9700-UA (CHASSIS:PU22A) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTION
1. Application Range
This spec. sheet applies to PU22A chassis applied PDP TV all
models manufactured in TV factory.
2. Specification
(1) Because this is not a hot chassis, it is not necessary to
use an isolation transformer. However, the use of isolation
transformer will help protect test instrument.
(2) Adjustment must be done in the correct order.
(3) The adjustment must be performed in the circumstance of
25 °C ± 5 °C of temperature and 65±10% of relative
humidity if there is no specific designation.
(4) The input voltage of the receiver must keep 100~240V,
50/60Hz.
(5) The receiver must be operated for about 5 minutes prior to
the adjustment when module is in the circumstance of over
15 °C
- In case of keeping module is in the circumstance of 0°C, it
should be placed in the circumstance of above 15°C for 2
hours
- In case of keeping module is in the circumstance of below
-20 °C, it should be placed in the circumstance of above 15
°C for 3 hours,.
* Caution : When still image is displayed for a period of 20
minutes or longer (especially where W/B scale is
strong. Digital pattern 13ch and/or Cross hatch
pattern 09ch), there can some afterimage in the black
level area.
3. Adjustment items
3.1. PCB Assembly adjustment
* Caution : Using ‘power on’ button of the control R/C power
on TV
(1) MAC Address, ESN and Wide-vine Key Download
(2) DFT Process
3.2. Set Assembly Adjustment
■ Power PCB Assembly Voltage adjustment (Va,Vs voltage
adjustment)
■ Adjustment of White Balance
■ Serial number download & Model name D/L
■ Checking the Eye-Q Operation
■ LAN port inspection (Ping test)
■ Magic Motion Remote Controller test
■ 3D function test
■ GND and ESD test
3.3. Additional
■ Selection Factory output option
■ S/W Download Guide
4. Board-level adjustment
4.1. MAC Address and ESN and Wide-vine
Key Download
* Connect TV SET and PC which download keys Writing
program by RS232C-Cable
(1) Start Program and Click ‘start’ Button to connect TV and
PC.
(2) When download succeed, you can see “OK” on the
screen.
* Each Chassis has it’s own MAC Address/ESN/Wide-vine
key. Please be careful of download.
- RS-232C Port connection
Connect: PCBA Jig-> RS-232C Port== PC-> RS-232C Port
4.2. DFT Process
* Depend on situation, Step can be changed.
* Condition spec
Mode
Volume
Power Off
RF
0
DC On
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* ADC Adjustment(Manual)
-> GP4 (PU22A/PB22A/PK22A) Chassis don’t need ADC
adjust process.The ADC value have been OTP process.
but, if you need to adjust ADC manually follow this
method.
■ Using instruments
- Adjustment remocon, 801GF(802B, 802F, 802R) or
MSPG925FA pattern generator
(It can output 480i/1080i horizontal 100% color bar
pattern signal, and its output level must setting 0.7V±0.1V
p-p correctly)
(1) Adjustment method 480i Comp1, Adjust 1080p Comp1/
RGB (Factory adjustment)
(2) ADC 480i Component1 adjustment
(3) Check connection of Component1
(4) MSPG-925FA -> Model: 209, Pattern 65
(5) Set Component 480i mode and 100% Horizontal Color Bar
Pattern(HozTV31Bar), then set TV set to Component1
mode and its screen to “NORMAL”
(6) Check connection both of Component1 and RGB
(7) MSPG-925FA -> Model: 225, Pattern 65
(8) Set Component 1080p mode and 100% Horizontal Color
Bar Pattern(HozTV31Bar), then set TV set to Component1
mode and its screen to “NORMAL”
(9) After get each the signal, enter the “EZ ADJUST” status
with pres ADJUST key of Service remocon. After then
select “8. ADC Calibration” with navigator button and press
“Enter”.
(10) After then select “ADC Type” and set value “OTP ->
External” with navigator button.
(11) After then press “Start” button.
(12) You can see “ADC Component1 Success”
(13) Component1 1080p, RGB 1080p Adjust is same method.
(14) Component 1080p Adjustment in Component1 input
mode.
(15) RGB 1080p adjustment in RGB input mode.
(16) If you success RGB 1080p Adjust. You can see “ADC
RGB-DTV Success
4.3. EDID(The Extended Display Identification
Data)/ DDC(Display Data Channel)
- It is a VESA regulation. A PC or a MNT will display an
optimal resolution through information sharing without any
necessity of user input. It is a realization of “Plug and Play”.
-> GP4 (PU22A/PB22A/PK22A) Chassis don’t need EDID
Download process.
Whenever TV power on, the EDID data was written on
inner memory.
4.3.1. EDID DATA(PCM)_PU22A
■ HDMI [C/S: 98 2F] : For FHD Models
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.4
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
■ RGB [C/S: B1] : For FHD Models
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
< Adjustment pattern : 480i / 1080p 60Hz Pattern >
Vender ID
C/S1
C/S2
HDMI1
10
98
2F
HDMI2
20
98
1F
HDMI3
30
98
0F
HDMI4
40
98
FF
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4.3.2. EDID DATA(AC-3)_PU22A
■ HDMI [C/S: 98 BD] : For FHD Models
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
EDID Block 1, Bytes 128-255 [80H-FFH]
Block Type: CEA EDID Timing Extension Version 3
■ RGB [C/S: B1] : For FHD Models
EDID Block 0, Bytes 0-127 [00H-7FH]
Block Type: EDID 1.3
5. Final Assembly adj.
* Caution : Each PCB assembly must be checked by check
JIG set. (Because power PCB Assembly damages
to PDP Module, especially be careful)
5.1. POWER Supply Unit PCB Ass'y Va/Vs
Voltage adjustment.
* Caution : Both Vs and Va voltage adjustment are necessary.
5.1.1. Model name
: PU22A
5.1.2. Va/Vs Adjustment Procedure
(1) Connect positive(+) terminal of DMM to Vs/Va pin, connect
negative(-) terminal to GND.
(2) Turning ‘Vs/Va Adjust’ and adjust Vs/Va voltages to a value
which is written on a right/top label of a module.
(deviation ; ±0.5V)
* Caution : Each Power Supply Unit PCB assembly must be
checked by check JIG set. (Because power PCB
Ass’y damages to PDP Module, especially be
careful)
* Caution : Set up "RF mode(noise)" before a voltage adjust-
ment.
5.2. White Balance adj.
5.2.1. Overview
■ W/B adj. : Objective & How-it-works
- Objective: To reduce each Panel’s W/B deviation
- How-it-works: When R/G/B gain in the OSD is at 192,
it means the panel is at its Full Dynamic
Range. In order to prevent saturation of
Full Dynamic range and data, one of R/G/B
is fixed at 192, and the other two is lowered
to find the desired value.
5.2.2. Equipment
(1) Color Analyzer : CA-210 (NCG: CH 9 / WCG: CH12 /PDP
Module:CH10)
(2) Adj. Computer (During auto adj., RS-232C protocol is
needed)
(3) Adj. R/C
(4) Video Signal Generator MSPG-925F
720p/216Gray(Model:217, Pattern:78)
→ Only when internal pattern is not available
■ Color Analyzer Matrix should be calibrated using CS-1000
Vender ID
C/S1
C/S2
HDMI1
10
98
BD
HDMI2
20
98
AD
HDMI3
30
98
9D
HDMI4
40
98
8D
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5.2.3. Equipment connection map
5.2.4. Adj. Command (Protocol)
■ Protocol
<Command Format>
- LEN: Number of Data Byte to be send
- CMD: Command
- VAL: FOS Data
- CS: Checksum of sent Data
- A: Acknowledge
Ex) [Send: JA_00_DD] / [Ack: A_00_okDDX]
■ RS-232C Command used during auto-adj.
Ex) wb 00 00 -> Begin white balance auto-adj.
wb 00 10 -> Gain adj.
ja 00 ff -> Adj. data
jb 00 c0
...
...
wb 00 1f -> Gain adj. complete
*(wb 00 20(Start), wb 00 2f(End)) -> Off-set adj.
wb 00 ff -> End white balance auto-adj.
5.2.5. Adj. method
5.2.5.1. Auto adj. method
(1) Set TV in adj. mode using POWER On Key
(2) Zero calibrate probe then place it on the center of the
Display
(3) Connect Cable(RS-232C)
(4) Select mode in adj. Program and begin adj.
(5) When adj. is complete (OK Sign), check adj. status per
mode
(Warm, Medium, Cool)
(6) Remove probe and RS-232C cable to complete adj.
■ Adj. must begin w/ command “wb 00 00”, and end w/“wb
00 ff”and adj. offset if needed.
■ Offset adjust limit value.
Offset Min = 34 (Decimal)
Offset Max = 94 (Decimal)
5.2.5.2. Auto adj. Sequence
- White Balance Adjust Sequence
Start -> Cool_Gain -> Medium_Gain -> Warm_Gain -> End
5.2.5.3. Manual adj. method
Dynamic contrast : off
Dynamic color : off
OPC : Off
Energy saving mode : Off
● Test Equipment: CA-210
- Using PDP color temperature, Color Analyzer (CA-210)
must use CH 10, which Matrix compensated (White, Red,
Green, Blue compensation) with CS-2100. See the
Coordination bellowed one.
● Manual adjustment sequence is like bellowed one.
- Turn to “Ez-Adjust” mode with press ADJ button of service
remocon.
- Select “10.Test Pattern” with CH+/- button and press
enter. Then set will go on Heat-run mode. Over 30
minutes set let on Heat-run mode.
- Let CA-210 to zero calibration and must has gap more
10cm from center of PDP module when adjustment.
- Press “ADJ” button of service remocon and select
“7.White-Balance” in “Ez-Adjust” then press “►” button of
navigation key. (When press “►” button then set will go to
full white mode)
- Adjust at three mode (Cool, Medium, Warm)
- If “cool” mode
Let B-Gain to 192 and R, G, B-Cut to 64 and then control
R, G gain adjustment High Light adjustment.
- If “Medium” and “Warm” mode Let R-Gain to 192 and R,
G, B-Cut to 64 and then control G, B gain adjustment
High Light adjustment.
- All of the three mode
Let R-Gain to 192 and R, G, B-Cut to 64 and then control
G, B gain adjustment High Light adjustment.
- With volume button (+/-) you can adjust.
- After all adjustment finished, with Enter (■ key) turn to
Ez-Adjust mode. Then with ADJ button, exit from
adjustment mode
* Attachment: White Balance adjustment coordination and
color temperature.
RS-232C COMMAND
[CMD ID DATA]
Meaning
wb
00
00
Begin White Balance adj.
wb
00
ff
End White Balance adj. (internal
pattern disappears)
pattern disappears)
9. White Balance
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