Focus Adjustment - LG 32FS4D Service Manual

6. MICOM download
6-1. Required Test Equipment
(1) PC, Jig for MICOM Download
(2) S/W for MICOM Download
(3) Cable for MICOM Download.
6-2. Setting of Device
PC
6-3. Download sequence
(1) Connect the PC Parallel Port to download JIG, and
connect the download JIG to P1700 of Board.
(2) Set PC program for JIG download as shown below.
then operate the download.
<In case of Win ISP 3.0>
(1) Configure the program for download.
1) MCU Select : MTV412M128(Use to MTV416)
2) R/W Option Auto Write(Verify)
3) Jig Option Myson
4) Transmit Speed : Medium
5) Check : blank
6) PORT " Using Parallel Port(LPT1)
* LPT must be selected to EPP at Rom BIAS.
7) Select the Save Setting.
(2) Click the"Send" button after selecting the Load File and
Loading the Hex File.
configuration of Win ISP V.3.0
TV
SET
JIG
<Fig . 5>
Completion of Win ISP V.3.0
<Fig . 6>

7. Focus adjustment

(1) Set the picture mode to "STANDARD".
(2) Set the screen size to "16:9".
(3) Receive the PAL CROSS HATCH(PAL 1-7CH) and adjust
the upper Focus volume of FBT for the best focus of
horizontal line A.
(4) Adjust the lower Focus volume of FBT for the best focus of
vertical line A.
(5) Repeat above step 1) and 2) for the best overall focus.
* This adjustment must be done after operating over 10
minutes.
8. Purity & Convergence adjustment
This adjustment should be operated when using the CPT
without ITC.
This adjustment must be done in the order of the following
flowchart.
CPT Assembling
Assembling DY to
CPT
HEAT RUN
Degaussing
STC Pre-Adjustment
PURITY Adjustment
DY Fixing
SCREEN Voltage adj.
W/B Fixing
FOCUS not yet ADJ.
STC not yet ADJ.
DYC not yet ADJ.
<Fig . 7>
As preparatory operations before
assembling CPT, wind cotton Tape for
protecting to CPT NECK and DY, CPT
connection parts. At this moment, end
of tape should be over-lapped and
wound in direct route to the NECK.
Fix the Magnet to the position as
shown picture below. Be careful not to
make CPT neck shadow while
adjusting DY.
The tip of DY
Let the screen Standard condition.
Operate Heat-Run at least 20
minutes.
Torque is to be 15-18 kg.cm when
fixing DY.
2–2mm