DOWNLOAD LG 42PC52-ZD (CHASSIS:PP78A) Service Manual ↓ Size: 11.03 MB | Pages: 40 in PDF or view online for FREE

- 9 -

(8) Click OK button at the "edit window".
(9) Under Downloading process.

(10) If download is failed, for example "No acknowledge from

slave". Execute download again from(1).

(1) Push S/W ‘ON" (connect SCL to GND using switch at Jig )

and connect the download jig to D-sub jack.

(2) Supply the power (Stand-by 5V) and wait for 3 seconds.

(3) Push the S/W off.(Disconnect SCL to GND using switch at jig).

(4)  Execute  ‘Download.vi2c’  program  in  PC,  then  a  main

widow will be opened.

(5) Double click the blue box and confirm "Bootloader Version" as 42.

(6) Click the "Erase Flash" button.

(7) Double click the download file low then, "edit" window will

be opened.

(8)  Chick  the  choice  button  I  n  the  "edit  window",  then  "file

choice window’ will be opened.

(9) Click the “load > flash” button.
(10)  Choose  the  Hex  file  in  folder  and  execute  downloading

with click "open button".

Push S/W

Push S/W

A

You must verify the words of “0xfffff” in the black box(A)  of figure.
(In case of H3 Service it is 0x7ffff : If you make H4 service after
the H3 service, there could be some problem)

- 10 -

(11) Click OK button at the "edit window".

(12) Under Downloading progress.

(13) If download is failed, for example "No acknowledge from

slave", execute download again from (1).

(1)  Push  the  “Tilt”  button  in  an  Adjust  Remocon  Then  the

PLASMA TV will change a “slave mode”.

(2) Connect Zig to TV using a D-sub cable.

(3)  Execute  ‘Download_CS.vi2c’  program  in  PC,  then  a  main

widow will be opened.

(4) Click "GO" button.

If  you  don’t  push  the  “go”,  the  Hex  file  would  not  be

downloaded  although  the  download  proceeds  normally  at
first glance.

(5)  Double  click  the  blue  box  and  confirm  "Bootloader

Version" as 42.

(6) Click the "Erase Flash" button.

(7) Double click the download file low then, "edit" window will

be opened.

(8)  Chick  the  choice  button  I  n  the  "edit  window",  then  "file

choice window’ will be opened.

(9) Click the “load > flash” button.

A

You must verify the words of “0xfffff” in the black box(A) of figure.
(In case of H3 Service it is 0x7ffff : If you make H4 service after
the H3 service, there could be some problem)

- 11 -

(10)  Choose  the  Hex  file  in  folder  and  execute  downloading

with click "open button".

(11) Click OK button at the "edit window".

(12) Under Downloading progress.

(13) If download is failed, for example "No acknowledge from

slave", execute download again from (1).

:  This  is  for  downloading  the  s/w  to  the  flash  memory  of  the

vctp(IC500)

(1) PC.
(2) Visual IIC program.
(3) Download jig.

(1) Connect the download jig to D-sub jack.
(2)  Execute  ‘Channel.vi2c’  program  in  PC,  then  a  main

window will be opened.

(1) IC name and circuit number : VCTP and IC500.
(2) Use voltage : 3.3V.
(3) SCL : 15pin.
(4) SDA : 12pin.
(5) Tact time : about 3seconds.

(1) Connect the download jig to D-sub jack.
(2)  ‘Execute  ‘Channal  vi2c’  program  in  PC,  then  a  main

window will be opened.

(3)  Push  the  button  change  and  select  the  Channel  memory

data.

(4) Check the communication is OK or not.
=>  Push  the  Read  area  (Ackn.  Check)  and  check  Cyan  area

is OK message.

(5) Push the Update NVM from File

- 12 -

: Must be changed the option value because being different with

some setting value depend on module, inch and market.

1) Adjustment remocon.

Before PCB check, have to change the Tool option and Area option.
Option values are below.
(If on changed the option, the input menu can differ the model spec.)
The input methods are same as other chassises.(Use adj Key
on the Adjust Remocon)

:  To  have  the  margin  about  the  deviation  of  colorcarrier  to

satisfy the spec.

1) Adjustment remocon.
2) Pal RF signal.

: TV set should connected with the pal RF signal(EU 5CH).

(1) tuning the RF signal

ZB, TB : PAL Philips Pattern (with Color Bar)

(2) push the “adj” key in the adjustment remocon.

(Va, Vs Voltage adjustments)

: To supply the Va, Vs voltage that the module want.

(1) Stick for adjustment.
(2) DMM.

: refer to (Fig. 1)

1) After receiving 100% Full White Pattern, HEAT RUN.
2) Connect + terminal of D. M..M. to Va pin of P812, connect

-terminal to GND pin of P812.

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)

1) Connect + terminal of D. M..M. to Vs pin of P812, connect

-terminal to GND pin of P812.

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)

: To be possible for plug and play.

* Caution

- Use the proper signal cable for EDID Download.
- Never connect HDMI & D-SUB Cable at the same time.
- Use the proper cables below for EDID Writing.

* EDID Data

Tool Option

42(VGA)

02244

04292

42(XGA)

02252

04300

50

02260

04308

Area Option

Depend on PR

Item

Manufacturer ID

Version

Revision

Condition

GSM

Digital : 1

Digital : 3

Hex Data

1E6D

01

03

For RGB EDID

For HDMI EDID

(Fig. 1) Connection Diagram of power adjustment for measuring.

Each PCB assembly must be checked by check JIG set.
(Because  power  PCB  Assembly  damages  to  PDP  Module,
especially be careful)