Z42PQ20-UC (CHASSIS:PU92B) - LG TV Service Manual (repair manual)

Model
Z42PQ20-UC (CHASSIS:PU92B)
Pages
48
Size
9.27 MB
Type
PDF
Document
Service Manual
Brand
Device
TV / Plasma
File
z42pq20-uc-chassis-pu92b.pdf
Date

View LG Z42PQ20-UC (CHASSIS:PU92B) Service Manual online

PLASMA TV
SERVICE MANUAL
CAUTION
BEFORE SERVICING THE CHASSIS,
READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CHASSIS : PU92B
MODEL : Z42PQ20
Z42PQ20-UC
- 2 -
CONTENTS ............................................................................................................................... 2
SAFETY PRECAUTIONS ...........................................................................................................3
SPECIFICATION.........................................................................................................................4
ADJUSTMENT INSTRUCTION ..................................................................................................6
TROUBLE SHOOTING GUIDE ................................................................................................13
BLOCK DIAGRAM ...................................................................................................................45
EXPLODED VIEW  .................................................................................................................. 47
SVC. SHEET  ................................................................................................................................
TABLE OF CONTENTS
- 3 -
SAFETY PRECAUTIONS
Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by      in the
Schematic Diagram and Exploded View. 
It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent
X-RADIATION, Shock, Fire, or other Hazards. 
Do not modify the original design without permission of manufacturer.
General Guidance
An  lsolation  Transformer  should  always  be  used during  the
servicing  of  a  receiver  whose  chassis  is  not  isolated  from  the  AC
power  line.  Use  a  transformer  of  adequate  power  rating  as  this
protects  the  technician  from  accidents  resulting  in  personal  injury
from electrical shocks.
It  will  also  protect  the  receiver  and  it's  components  from  being
damaged  by  accidental  shorts  of  the  circuitary  that  may  be
inadvertently introduced during the service operation.
If any fuse (or Fusible Resistor) in this monitor is blown, replace it
with the same specified type.
When replacing a high wattage resistor (Oxide Metal Film Resistor,
over 1W), keep the resistor 10mm away from PCB.
Keep wires away from high voltage or high temperature parts.
Leakage Current Cold Check(Antenna Cold Check)
With the instrument AC plug removed from AC source, connect an
electrical  jumper  across  the  two  AC  plug  prongs.  Place  the  AC
switch in the on positioin, connect one lead of ohm-meter to the AC
plug prongs tied together and touch other ohm-meter lead in turn to
each  exposed  metallic  parts  such  as  antenna  terminals,  phone
jacks, etc. 
If  the  exposed  metallic  part  has  a  return  path  to  the  chassis,  the
measured resistance should be between 1MΩ and 5.2MΩ. 
When  the  exposed  metal  has  no  return  path  to  the  chassis  the
reading must be infinite.
An  other  abnormality  exists  that  must  be  corrected  before  the
receiver is returned to the customer.
Leakage Current Hot Check 
(See below Figure) 
Plug the AC cord directly into the AC outlet.
Do not use a line Isolation Transformer during this check. 
Connect  1.5K/10watt  resistor  in  parallel  with  a  0.15uF  capacitor
between  a  known  good  earth  ground  (Water  Pipe,  Conduit,  etc.)
and the exposed metallic parts.
Measure  the  AC  voltage  across  the  resistor  using  AC  voltmeter
with 1000 ohms/volt or more sensitivity.
Reverse plug the AC cord into the AC outlet and repeat AC voltage
measurements  for  each  esposed  metallic  part.  Any  voltage
measured must not exceed 0.75 volt RMS which is corresponds to
0.5mA.
In  case  any  measurement  is  out  of  the  limits  sepcified,  there  is
possibility  of  shock  hazard  and  the  set  must  be  checked  and
repaired before it is returned to the customer.
Leakage Current Hot Check circuit
CANADA: LG Electronics Canada, Inc. 550 Matheson
Boulevard East Mississauga, Ontario L4Z 4G3
USA      : LG Customer Interactive Center
P.O.Box 240007, 201 James Record Road Huntsville,
AL 35824
Digital TV Hotline  1-800-243-0000
1.5 Kohm/10W
To Instrument's
exposed 
METALLIC PARTS
Good Earth Ground
such as WATER PIPE,
CONDUIT etc.
AC Volt-meter
IMPORTANT SAFETY NOTICE
0.15uF
- 4 -
SPECIFICATIONS
NOTE : Specifications and others are subject to change without notice for improvement.
V
Application Range
This spec is applied to the 
PLASMA TV used PU92B Chassis.
Specification
Each part is tested as below without special appointment.
1) Temperature : 25±5°C 
2) Relative Humidity: 65±10%
3) Power Voltage: Standard Input voltage (100-240V~, 50/60Hz)
* Standard Voltage of each product is marked by models.
4) Specification and performance of each parts are followed each drawing and specification by part number in accordance with SBOM.
5) The receiver must be operated for about 20 minutes prior to the adjustment.
V
Test Method
1) Performance : LGE TV test method followed.
2) Demanded other specification 
Safety : UL, CSA, IEC specification
EMC
: FCC, ICES, IEC specification
Chassis
PU92B
Z42PQ20-UC
NORTH AMERICA
LG
Model Name
Market
Brand
Remark
Z42PQ20-UC
Safety : UL1492, CSA C22.2.No. 1
EMC : FCC Class B, IC Class B
NORTH AMERICA
Model
Appliance
Market
Remark
- 5 -
SPECIFICATIONS
V
General Specification
No.
1
2
3
4
5
6
7
8
9
10
Item
Receiving System
Available Channel
Input Voltage
Market
Screen Size
Aspect Ratio
Tuning System
Module
Operating Environment
Storage Environment
Specification
ATSC/64 & 256 QAM/NTSC-M
1) VHF : 02 ~ 13
2) UHF : 14 ~ 69
3) DTV : 02 ~ 69
4) CATV : 01 ~ 135
5) CADTV : 01 ~ 135
1) AC 100 ~ 240V  50/60Hz
2) AC 100 ~ 120V  50/60Hz
NORTH AMERICA
42 inch Wide(1024 X 768)
50  inch Wide(1365 X 768)
60  inch Wide(1365 X 768)
50  inch Wide(1920 X 1080)
60 inch Wide(1920 X 1080)
16 : 9
FS
PDP32F2####(852 X 480)
PDP42G2####(1024 X 768)
PDP50G2####(1365 X 768)
PDP50H3####(1920 X 1080)
PDP60H3####(1920 X 1080)
1) Temp : 0 ~ 40deg
2) Humidity : ~80%
1) Temp : -20 ~ 60deg
2) Humidity : 0 ~ 90%
- 6 -
ADJUSTMENT INSTRUCTIONS
1. Application Range
This spec sheet is applied to all of the “PU92B” Chassis.
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±5
c
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
15cC
- In case of keeping module is in the circumstance of 0cC,
it should be placed in the circumstance of above 15cC for
2 hours 
- In case of keeping module is in the circumstance of below
-20cC,  it  should  be  placed  in  the  circumstance  of  above
15cC for 3 hours.
1) Press the POWER ON KEY on R/C for adjustment.
2) Press the ADJ KEY on R/C and enter EZ ADJUST.
Select  “4.  WHITE  PATTERN”  by  using 
D
/
E
(CH  +/-)  and
select “White” by using 
F
/
G
(VOL +/-)
-  Set  is  activated  HEAT  run  without  signal  generator  in  this
mode.
- Single color pattern (RED / BLUE / GREEN) of HEAT RUN
MODE uses to check panel.
Caution:  If  you  turn  on  a  still  screen  more  than  20  minutes
(Especially digital pattern, cross hatch pattern), an after
image  may  be  occur  in  the  black  level  part  of  the
screen.
Caution: Set up “RF mode(noise)” after PCB assembly adjustment.
3. 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.
- 7 -
4. ADC Process
4-1. PC Input ADC
(1) Auto RGB Gain/Offset Adjustment
1) Convert to PC in Input-source
I2C  COMMAND:  0xF4  (SELECT_INPUT)  0x00  0x60
(RGB)
cf.  0x10(TV),  0x20(AV),  0x40(COMPONENT),  0x60
(RGB), 0x90(HDMI)
2) Signal equipment displays
3)  Adjust  by  commanding  AUTO_COLOR_ADJUST(0xF1)
0x00 0x02 instruction.
(2) Confirmation
1) We confirm whether “0xB6(RGB)” address of EEPROM
“0xA2” is “0xAA” or not. 
2) If “0xB6(RGB)” address of EEPROM “0xB2” isn’t “0xAA”,
we adjust once more
3)  We  can  confirm  the  ADC  values  from  “0xB0~0xB5
(RGB)” addresses 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 “0. ADC CALIBRATION “. 
4-2. COMPONENT Input ADC
(1) Component Gain/Offset Adjustment
1) Convert to Component in Input-source
I2C  COMMAND  :  0xF4  (SELECT_INPUT)    0x00    0x40
(COMPONENT)
cf.  0x10(TV),  0x20(AV),  0x40(COMPONENT),  0x60
(RGB), 0x90(HDMI)
2) Signal equipment displays
3)  Adjust  by  commanding  AUTO_COLOR_ADJUST(0xF1)
0x00 0x02 instruction
4) Signal equipment displays
5)  Adjust  by  commanding  AUTO_COLOR_ADJUST(0xF1)
0x00 0x02 instruction
[ Manual  ADC  process  using  Service  Remocon.  After  enter
Service Mode by pushing “ADJ” key, execute “ADC Adjust” by
pushing “
G
” key at “0. ADC CALIBRATION”. 
4-3. Confirmation
(1)  We  confirm  whether  “0xBF(480i)/0xC8(1080i)”  address  of
EEPROM “0xA2” is “0xAA” or not. 
(2)  If  “0xBF(480i)/0xC8(1080i)”  address  of  EEPROM  “0xA2”
isn’t “0xAA”, we adjust once more
(3) We can confirm the ADC values from “0xB9 ~ 0xBE(480i) /
0xC2 ~ (1080i)” addresses in a page “0xA2”
[ Manual ADC Confirmation using Service Remocon. After enter
Service Mode by pushing “INSTART” key.
5. DDC EDID Write Confirmation
ADJUSTMENT INSTRUCTIONS
- 8 -
Caution: Each PCB assembly must be checked by check JIG set.
(Because  power  PCB  Assembly  damages  to  PDP
Module, especially be careful)
Caution: Set up “RF mode(noise)” before voltage adjustment.
6. POWER PCB Ass’y Voltage 
Adjustment
(Va, Vs voltage Adjustment)
6-1. Test Equipment:
D.M.M 1EA
6-2. Connection Diagram for Measuring
Refer to Fig.1, Fig 2, Fig 3
6-3. Adjustment Method 
(1) 50” Va Adjustment (refer fig.1)
1) After receiving 100% Full White Pattern, HEAT RUN.
2)  Connect  +  terminal  of  D.M.M.  to  Va  pin  of  P802,
connect-terminal to GND pin of P802.
3)  After  turning  VR902,voltage  of  D.M.M  adjustment  as
same  as  Va  voltage  which  on  label  of  panel  right/top
(deviation; ±0.5V)
(2) 50” Vs Adjustment (refer fig.1)
1) Connect + terminal of D.M.M. to Vs pin of P802, connect
-terminal to GND pin of P802.
2)  After  turning  VR901,  voltage  of  D.M.M  adjustment  as
same as Vs voltage which on label of panel right/top
(deviation ; ±0.5V)
(3) 42” Va Adjustment (refer fig.2)    
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)
(4) 42” Vs Adjustment (refer fig.2)
1)  Connect  +  terminal  of  D.  M..M.  to  Vs  pin  of  P811,
connect -terminal to GND pin of P811.
2)  After  turning  VR951,  voltage  of  D.M.M  adjustment  as
same as Vs voltage which on label of panel right/top
(deviation ; ±0.5V)
(5) 60” Va Adjustment (refer fig.3)    
1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D.M.M. to Va pin of P11, connect
-terminal to GND pin of P11.
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)
(6) 60” Vs Adjustment (refer fig.3)
1) Connect + terminal of D. M..M. to Vs pin of P11, connect
-terminal to GND pin of P11.
2)  After  turning  VR951,  voltage  of  D.M.M  adjustment  as
same as Vs voltage which on label of panel right/top
(deviation ; ±0.5V)
ADJUSTMENT INSTRUCTIONS
(Fig. 1) 50inch Power PCB Assy Voltage Adjustment
(Fig. 2) 42inch Power PCB Assy Voltage Adjustment
(Fig. 3) 60inch Power PCB Assy Voltage Adjustment
- 9 -
7. DDC EDID Write 
(MODEL NAME:  LG TV(Not necessary))
Caution: Please only check write status in Instart-menu
- EDID download is processed automatically through CPU at initial booting
- PC(for communication through RS-232C), UART baud rate: 115200 bps
7-1. HD EDID DATA
(1) RGB EDID DATA
0
1           2         3         4         5         6         7           8           9         A         B         C         D         E         F
————————————————————————————————————————————
/* 0 */ 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x1E, 0x6D, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01,
/* 1 */ 0x00, 0x11, 0x01, 0x03, 0x18, 0x73, 0x41, 0x96, 0x0A, 0xCF, 0x74, 0xA3, 0x57, 0x4C, 0xB0, 0x23,
/* 2 */ 0x09, 0x48, 0x4C, 0xAF, 0xCF, 0x00, 0x31, 0x40, 0x45, 0x40, 0x61, 0x40, 0x81, 0x80, 0xA9, 0x40,
/* 3 */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xB0, 0x51, 0x00, 0x1B, 0x30, 0x40, 0x70,
/* 4 */ 0x36, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x02, 0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40,
/* 5 */ 0x58, 0x2C, 0x45, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0xFD, 0x00, 0x30,
/* 6 */ 0x4B, 0x1F, 0x64, 0x11, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xFC,
/* 7 */ 0x00, 0x4C, 0x47, 0x20, 0x54, 0x56, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0xFF,
/* 8 */ 0x02, 0x03, 0x04, 0x00, 0x0E, 0x1F, 0x00, 0x80, 0x51, 0x00, 0x1E, 0x30, 0x40, 0x80, 0x37, 0x00,
/* 9 */ 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1C, 0xF1, 0x27, 0x00, 0xA0, 0x51, 0x00, 0x25, 0x30, 0x50, 0x80,
/* a */ 0x37, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* b */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* c */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* d */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* e */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
/* f */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x31,
(2) HDMI-1 EDID DATA
0
1           2         3         4         5         6         7           8           9         A         B         C         D         E         F
————————————————————————————————————————————
/* 0 */ 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x1E, 0x6D, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01,
/* 1 */ 0x00, 0x11, 0x01, 0x03, 0x80, 0x73, 0x41, 0x96, 0x0A, 0xCF, 0x74, 0xA3, 0x57, 0x4C, 0xB0, 0x23,
/* 2 */ 0x09, 0x48, 0x4C, 0xAF, 0xCF, 0x00, 0x31, 0x40, 0x45, 0x40, 0x61, 0x40, 0x81, 0x80, 0xA9, 0x40,
/* 3 */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xB0, 0x51, 0x00, 0x1B, 0x30, 0x40, 0x70,
/* 4 */ 0x36, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x02, 0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40,
/* 5 */ 0x58, 0x2C, 0x45, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0xFD, 0x00, 0x30,
/* 6 */ 0x4B, 0x1F, 0x64, 0x11, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xFC,
/* 7 */ 0x00, 0x4C, 0x47, 0x20, 0x54, 0x56, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0x97,
/* 8 */ 0x02, 0x03, 0x1B, 0xF1, 0x47, 0x84, 0x05, 0x03, 0x02, 0x20, 0x22, 0x10, 0x26, 0x15, 0x07, 0x50,
/* 9 */ 0x09, 0x07, 0x07, 0x67, 0x03, 0x0C, 0x00, 0x10, 0x00, 0xB8, 0x2D, 0x01, 0x1D, 0x00, 0x72, 0x51,
/* a */ 0xD0, 0x1E, 0x20, 0x6E, 0x28, 0x55, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x01, 0x1D, 0x80,
/* b */ 0x18, 0x71, 0x1C, 0x16, 0x20, 0x58, 0x2C, 0x25, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x9E, 0x8C,
/* c */ 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 
/* d */ 0x18, 0x8C, 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00, 0x13, 0x8E, 0x21, 
/* e */ 0x00, 0x00, 0x18, 0x0E, 0x1F, 0x00, 0x80, 0x51, 0x00, 0x1E, 0x30, 0x40, 0x80, 0x37, 0x00, 0xC4, 
/* f */ 0x8E, 0x21, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xBD,
ADJUSTMENT INSTRUCTIONS
- 10 -
(3) HDMI-2 EDID DATA
0
1           2         3         4         5         6         7           8           9         A         B         C         D         E         F
————————————————————————————————————————————
/* 0 */ 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x1E, 0x6D, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01,
/* 1 */ 0x00, 0x11, 0x01, 0x03, 0x80, 0x73, 0x41, 0x96, 0x0A, 0xCF, 0x74, 0xA3, 0x57, 0x4C, 0xB0, 0x23,
/* 2 */ 0x09, 0x48, 0x4C, 0xAF, 0xCF, 0x00, 0x31, 0x40, 0x45, 0x40, 0x61, 0x40, 0x81, 0x80, 0xA9, 0x40,
/* 3 */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xB0, 0x51, 0x00, 0x1B, 0x30, 0x40, 0x70,
/* 4 */ 0x36, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x02, 0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40,
/* 5 */ 0x58, 0x2C, 0x45, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0xFD, 0x00, 0x30,
/* 6 */ 0x4B, 0x1F, 0x64, 0x11, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xFC,
/* 7 */ 0x00, 0x4C, 0x47, 0x20, 0x54, 0x56, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0x97,
/* 8 */ 0x02, 0x03, 0x1B, 0xF1, 0x47, 0x84, 0x05, 0x03, 0x02, 0x20, 0x22, 0x10, 0x26, 0x15, 0x07, 0x50,
/* 9 */ 0x09, 0x07, 0x07, 0x67, 0x03, 0x0C, 0x00, 0x20, 0x00, 0xB8, 0x2D, 0x01, 0x1D, 0x00, 0x72, 0x51,
/* a */ 0xD0, 0x1E, 0x20, 0x6E, 0x28, 0x55, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x01, 0x1D, 0x80,
/* b */ 0x18, 0x71, 0x1C, 0x16, 0x20, 0x58, 0x2C, 0x25, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x9E, 0x8C,
/* c */ 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 
/* d */ 0x18, 0x8C, 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00, 0x13, 0x8E, 0x21, 
/* e */ 0x00, 0x00, 0x18, 0x0E, 0x1F, 0x00, 0x80, 0x51, 0x00, 0x1E, 0x30, 0x40, 0x80, 0x37, 0x00, 0xC4, 
/* f */ 0x8E, 0x21, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xAD,
(4) HDMI-3 EDID DATA
0
1           2         3         4         5         6         7           8           9         A         B         C         D         E         F
————————————————————————————————————————————
/* 0 */ 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x1E, 0x6D, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01,
/* 1 */ 0x00, 0x11, 0x01, 0x03, 0x80, 0x73, 0x41, 0x96, 0x0A, 0xCF, 0x74, 0xA3, 0x57, 0x4C, 0xB0, 0x23,
/* 2 */ 0x09, 0x48, 0x4C, 0xAF, 0xCF, 0x00, 0x31, 0x40, 0x45, 0x40, 0x61, 0x40, 0x81, 0x80, 0xA9, 0x40,
/* 3 */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xB0, 0x51, 0x00, 0x1B, 0x30, 0x40, 0x70,
/* 4 */ 0x36, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x02, 0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40,
/* 5 */ 0x58, 0x2C, 0x45, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0xFD, 0x00, 0x30,
/* 6 */ 0x4B, 0x1F, 0x64, 0x11, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xFC,
/* 7 */ 0x00, 0x4C, 0x47, 0x20, 0x54, 0x56, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0x97,
/* 8 */ 0x02, 0x03, 0x1B, 0xF1, 0x47, 0x84, 0x05, 0x03, 0x02, 0x20, 0x22, 0x10, 0x26, 0x15, 0x07, 0x50,
/* 9 */ 0x09, 0x07, 0x07, 0x67, 0x03, 0x0C, 0x00, 0x30, 0x00, 0xB8, 0x2D, 0x01, 0x1D, 0x00, 0x72, 0x51,
/* a */ 0xD0, 0x1E, 0x20, 0x6E, 0x28, 0x55, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x01, 0x1D, 0x80,
/* b */ 0x18, 0x71, 0x1C, 0x16, 0x20, 0x58, 0x2C, 0x25, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x9E, 0x8C,
/* c */ 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 
/* d */ 0x18, 0x8C, 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00, 0x13, 0x8E, 0x21, 
/* e */ 0x00, 0x00, 0x18, 0x0E, 0x1F, 0x00, 0x80, 0x51, 0x00, 0x1E, 0x30, 0x40, 0x80, 0x37, 0x00, 0xC4, 
/* f */ 0x8E, 0x21, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x9D,
(5) HDMI-4 EDID DATA
0
1           2         3         4         5         6         7         8           9         A         B         C         D         E         F
————————————————————————————————————————————
/* 0 */ 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x1E, 0x6D, 0x01, 0x00, 0x01, 0x01, 0x01, 0x01,
/* 1 */ 0x00, 0x11, 0x01, 0x03, 0x80, 0x73, 0x41, 0x96, 0x0A, 0xCF, 0x74, 0xA3, 0x57, 0x4C, 0xB0, 0x23,
/* 2 */ 0x09, 0x48, 0x4C, 0xAF, 0xCF, 0x00, 0x31, 0x40, 0x45, 0x40, 0x61, 0x40, 0x81, 0x80, 0xA9, 0x40,
/* 3 */ 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x66, 0x21, 0x50, 0xB0, 0x51, 0x00, 0x1B, 0x30, 0x40, 0x70,
/* 4 */ 0x36, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x02, 0x3A, 0x80, 0x18, 0x71, 0x38, 0x2D, 0x40,
/* 5 */ 0x58, 0x2C, 0x45, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x00, 0x00, 0x00, 0xFD, 0x00, 0x30,
/* 6 */ 0x4B, 0x1F, 0x64, 0x11, 0x00, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xFC,
/* 7 */ 0x00, 0x4C, 0x47, 0x20, 0x54, 0x56, 0x0A, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x01, 0x97,
/* 8 */ 0x02, 0x03, 0x1B, 0xF1, 0x47, 0x84, 0x05, 0x03, 0x02, 0x20, 0x22, 0x10, 0x26, 0x15, 0x07, 0x50,
/* 9 */ 0x09, 0x07, 0x07, 0x67, 0x03, 0x0C, 0x00, 0x40, 0x00, 0xB8, 0x2D, 0x01, 0x1D, 0x00, 0x72, 0x51,
/* a */ 0xD0, 0x1E, 0x20, 0x6E, 0x28, 0x55, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x1E, 0x01, 0x1D, 0x80,
/* b */ 0x18, 0x71, 0x1C, 0x16, 0x20, 0x58, 0x2C, 0x25, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 0x9E, 0x8C,
/* c */ 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00, 0xC4, 0x8E, 0x21, 0x00, 0x00, 
/* d */ 0x18, 0x8C, 0x0A, 0xD0, 0x8A, 0x20, 0xE0, 0x2D, 0x10, 0x10, 0x3E, 0x96, 0x00, 0x13, 0x8E, 0x21, 
/* e */ 0x00, 0x00, 0x18, 0x0E, 0x1F, 0x00, 0x80, 0x51, 0x00, 0x1E, 0x30, 0x40, 0x80, 0x37, 0x00, 0xC4, 
/* f */ 0x8E, 0x21, 0x00, 0x00, 0x1C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x8D,
ADJUSTMENT INSTRUCTIONS

Download LG Z42PQ20-UC (CHASSIS:PU92B) Service Manual (Repair Manual)

Here you can view online and download LG Z42PQ20-UC (CHASSIS:PU92B) Service Manual in PDF. Z42PQ20-UC (CHASSIS:PU92B) service manual will guide through the process and help you recover, restore, fix, disassemble and repair LG Z42PQ20-UC (CHASSIS:PU92B) Plasma. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.