LG 42PB4DT-UA (CHASSIS:PA72A) (serv.man2) Service Manual ▷ View online
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ADJUSTMENT INSTRUCTIONS
(3) When the "Select Device" window appears, select the
PIC18F1220 from "Device" and press OK.
(4) Select "Programmer -> Connect".
When connected with the Micom, the display message on
the Output window appears as below.
the Output window appears as below.
(5) Select "File -> Import", select the Work HEX file and open.
(6) Select "Programmer -> Program".
(7) Download is executed and about 5 seconds later, the
"Programming succeeded" message is displayed on the
Output window and the Download process is ended.
Output window and the Download process is ended.
(8) The execution of process (6) is convenient when using the
short-cut icon.
5. POD Certificate Download
Download the authentication key for decoding when inserting
the cable card
the cable card
5-1. Required Test Equipment
(1) MEMORY JIG
(2) PC
(2) PC
5-2. Preparation for Adjustment
(1) Connect the MEMORY JIG and PC.
(2) Turn on the JIG MAIN POWER SWITCH.
(3) Execute the ‘Certificate Downloader v1.4’.
(2) Turn on the JIG MAIN POWER SWITCH.
(3) Execute the ‘Certificate Downloader v1.4’.
5-3. Adjustment
(1) After open the ‘Certificate Downloader v1.4’, enter
Connection set and set the as same below.
The port settings are determined by each PC's setup.
The port settings are determined by each PC's setup.
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ADJUSTMENT INSTRUCTIONS
(2) Select ‘Connection’ and SET connected to RS-232C.
(3) After clicking "Enter", confirm that "Enter Password:"
(3) After clicking "Enter", confirm that "Enter Password:"
appears.
(4) Click the "OpenFile - Download" button from CP Data
Download, ‘select the Private Key’ appears and click
ENTER.
ENTER.
(5) After clicking ENTER, the ‘opens Private key' window
appears and select the Private key applied to the SET.
The Private Key file name is on the Label of the Digital
Board.
The Private Key file name is on the Label of the Digital
Board.
(6) When the Dialog window appears, click OK and the write
work will begin.
(7) When completed, click ‘CP Data Download: OK’
[
When ‘CP Data Download: OK’ does not appear, certificate
has not Download correctly.
SET is rebooted and certificate Download work must be
repeated.
SET is rebooted and certificate Download work must be
repeated.
6. Gemstar Operation Confirmation
Confirm the operation of the Gemstar VBI
6-1. Required Test Equipment
(1) PC with Factory Test Program
(2) VBI Inserter (Norpak TES3) - Guide Data Discharge
(2) VBI Inserter (Norpak TES3) - Guide Data Discharge
Equipment
[
In case of without the VBI Inserter(TES3), a VCR may be
used.
6-2. Preparation for Adjustments
(1) In case of with VBI Inserter(TES3): Signal uses Cable
input and set as below.
Input Signal
RS-232C
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ADJUSTMENT INSTRUCTIONS
(2) In case of without VBI Inserter(TES3): VCR uses Cable
input and set as below.
[
Factory Test S/W must be set to "GlinkTo PC Card" ON.
6-3. Adjustment Confirmation Work
(1) Turn on the TV and run Factory Test Program of PC.
[
Program only needs to run once, regardless of set quantity.
(2) Enter the EZ adjust menu by pressing Adjust on the
Service Remote Control (S R/C).
(3) Go to number 1 Gemstar and press Enter.
(4) TV set screen will appear as shown.
(4) TV set screen will appear as shown.
(5) Confrim that VBI Test and Serial Test PASS from the
screen.
7. Cable Operation Confirmation
Confirm whether it normally operates or not after inserting the
cable card
cable card
(1) Confirm that the Cable Card is inserted in the slot.
(2) Enter the EZ adjust menu by pressing the Adjust key on
(2) Enter the EZ adjust menu by pressing the Adjust key on
the Service Remote Control (S R/C).
(3) Go to number 2 Cable Check and press the Right key (
G
) .
(4) Confirm items below.
Name
Descrambler
Check
CableCARD
OOB Path
FDC_SNR
Video Signal
Normal
OK
CableCARD
TM
is inserted.
OK(Lock)
OK(20dB above)
Normal Screen
Defective
Not OK
CableCARD
TM
is removed.
Not OK(Unlock)
Not OK(20dB under)
Black Screen
(No Picture)
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ADJUSTMENT INSTRUCTIONS
8. PSU(Power Supply Unit) Voltage
Adjustment
(Va, Vs Voltage Adjustment)
Adjust the voltages Va and Vs supplied from the PSU to the
module within the specified range of each module to supply
the stable power
module within the specified range of each module to supply
the stable power
8-1. Test Equipment
(1) D.M.M 1EA
(2) Voltage adjustment bar
(2) Voltage adjustment bar
8-2. Adjustment(60”)
(1) Va Voltage Adjustment
1) Connect + terminal of D.M.M to Va pin of P812 and
connect – terminal to GND pin of P812.
2) Adjust VR901 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)
(2)
Vs Voltage Adjustment
1) Connect + terminal of D.M.M to Vs pin of P812 and
connect – terminal to GND pin of P812.
2) Adjust VR951 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)
8-3. Adjustment (50”)
(1) Va Adjustment
1) Connect + terminal of D.M.M to Va pin of P12 and
connect – terminal to GND pin of P12.
2) Adjust VR951 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)
(2) Vs Adjustment
1) Connect + terminal of D.M.M to Vs pin of P12 and
connect – terminal to GND pin of P12.
2) Adjust VR901 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)
8-4. Adjustment(42”)
(1) Va Voltage Adjustment
1) Connect + terminal of D.M.M to Va pin of P812 and
connect – terminal to GND pin of P812.
2) Adjust VR901 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)
(2)
Vs Voltage Adjustment
1) Connect + terminal of D.M.M to Vs pin of P812 and
connect – terminal to GND pin of P812.
2) Adjust VR951 voltage to match that of the label on the
Top/Right of the panel. (Deviation : ±0.5V)
Connection Diagram of Power Adjustment for Measuring
(Power Board): 60”
Connection Diagram of Power Adjustment for Measuring
(Power Board): 50”
Connection Diagram of Power Adjustment for Measuring
(Power Board): 42”(EAY32808901)
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