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OPTION SETTING
[After replacing the Menory IC (IC803)]
The memory IC, IC803, stores the option data of TV set and service adjustments data for each circuit, therefore,
when the memory IC is replaced, it should be performed following setting and "SERVICE ADJUSTMENT" on next
page.
To enter to the Option Mode
+ Press and hold the "RECALL"button on the remote control and "PROG.+" button on the front panel of the TV. The
option window will appear on the screen.
ON-TIMER
SORT MODE
PLUG & PLAY
WELCOME TEXT
CODE TEST
WSS
To set the option mode
+ Highlight the desired option item by using the UP or DOWNbutton .
+ To switch the option mode, use the Volume - (LEFT) or Volume + (RIGHT) button.
+ The data which is set in the option mode is stored into the memory IC automatically.
Following table shows the available option items and default setting mode.
Option Mode
Mode
ON-TIMER
ON or OFF
SORT MODE
ATS EURO PLUS
or AUTO TUNE
or AUTO TUNE/SORT
PLUG & PLAY
ON or OFF
WELCOME TEXT
ON or OFF
CODE TEST
OFF or ON
WSS
ON or OFF
Exit from the Service Mode
+ Press the RECALL button.
SERVICE ADJUSTMENTS
Note: Some items of the service adjustments for this chassis are controlled by the CPU, IC801, and the
adjustments are carried out by using the RC handset.
[After replacing the Menory IC (IC803)]
The memory IC, IC803, stores the service adjustments data for each circuit, therefore, when the memory IC is
replaced, it should be performed "OPTION SETTING" on previous page and the following adjustments, refer to futher
adjustment on page 14.
ADJUSTABLE SERVICE ADJUSTMENT
REGULAR
Item No.
OSD
Description
1
VC1
B/G VCO Adjustment
2
VC2
France-L/L' VCO Adjustment
3
AGC
AGC Adjustment
4
SCR
Screen Adjustment
5
GRY
White Balance Adjustment
6
CUT
Cut-Off Drive Adjustment
7
CTR
Contrast Adjustment
8
OSD
OSD Positioning Adjustment
WIDE
Item No.
OSD
Description
4
P V-WA
Vertical Size Adjustment
6
P V-L
Vertical Centre Adjustment
8
P H-P
Horizontal Centre Adjustment
9
P H-W
Horizontal Size Adjustment
11
P PCC
Pcc Adjustment
16
P TRP
Trapizoid Distortion Adjustment
IMPOTANT NOTICE
Do not attempt to adjust service adjustments not listed on the above otherwise it may cause
loss of performance and product safety.
To enter to the Service Mode
+ Press and hold the "RECALL" button on the remote control and then press the "SERVICE switch"inside of the
door. The adjustment window will appear on the screen.
To select the mode and service item and change data value
+ Highlight the desired adjustment mode by using the UP or DOWNbutton and then press the OK button.
+ To select the adjustment item, use the UP or DOWN button.
+ To change the service data, use the Volume -(LEFT) or Volume + (RIGHT) button.
+ The data which is set in the service mode is stored into the memory IC automatically.
REGULAR mode
STATUS
10
REGULAR
NG
1VC1
38
Adjustment Item
Adjustment Data
OPTION
ON
ATS EURO PLUS
ON
ON
OFF
ON
ADJUST :
EXIT : RECALL
Note
Default "ON"
Depends destination
Default "ON"
Display meassage when first set up, default "ON"
For factory use, default "OFF"
Wide Screen Signaling available, default "ON"
ADJUST
REGULAR
WIDE
OTHERS
TDA9320
TDA9330
TDA9178
TDA4977
SELECT:
OK
EXIT : RECALL
WIDE mode
Status
WIDE
1.P V-P
1F
Adjustment Item
Exit from the Service Mode
+ Press the RECALL button or turn off the TV set by using the Mains switch.
INITIALIZATION OF MEMORY IC
To initialize the memory IC (IC803), press and hold the "NORMAL" button on te remote control and then press the
"SERVICE" switch on the front panel of the TV set.
When initialized the memory IC, all of the setting data (option data and service adjustment data) stored in the IC are
reset to the default value. So it is necessary to set the option settings and readjust the service adjustments listed on
left page.
ADJUSTMENTS
IMPOTANT NOTICE
Do not attempt to adjust the following service adjustments except requiring the readjustments in servicing
otherwise it may cause loss of performance and product safety.
POWER SUPPLY CONFIRMATION
1. Receive white raster pattern.
2. Set controls to maximum and set the screen mode to
"WIDE".
3. Connect digital voltmeter to D632-C and GND.
4. Confirm that voltage is 140±1Vdc.
IF VCO ADJUSTMENT
PAL BG VCO ADJUSTMENT
1. Apply 38.9MHz signal to IF terminal on the tuner.
2. Set system mode to "S-1".
3. Enter to the service mode and select mode
"REGULAR", item "REGULAR 1VC1".
4. Press the volume + or - key to set data value to be
"10".
SECAM L/L' VCO ADJUSTMENT
1. Apply 34.3MHz signal to IF terminal on the tuner.
2. Set system mode to "S-4".
3. Enter to the service mode and select mode
"REGULAR", item "REGULAR 2VC2".
4. Press the volume + or - key to set data value to be
"10".
RF-AGC ADJUSTMENT
1. Receive colour bar pattern with 63dBuV/75Ω
terminated signal gain.
2. Connect digital voltmeter to TP-AGC and GND.
3. Set system mode to "S-1".
4. Enter to the service mode and select mode
"REGULAR", item "REGULAR 3AGC".
5. Press the volume + or - key to adjust voltage to be
3.2Vdc.
FOCUS ADJUSTMENT
By using FOCUS VR, adjust focus control for well defined
scanning lines.
GREY SCALE ADJUSTMENT
SCREEN ADJUSTMENT
1. Select AV1 mode with no signal input.
2. Enter to the service mode and select mode
"REGULAR", item "REGULAR 4SCR".
3. Turn the screen VR to set data value to be "11".
GREY SCALE ADJUSTMENT
1. Receive white raster pattern.
2. Enter to the service mode and select mode
"REGULAR", item "REGULAR 5SRY".
3. Select data value by using program up or down key,
and press the volume + or - key to obtain the proper
white balance.
OSD CENTRING ADJUSTMENT
1. Receive circular pattern and set screen mode to
"FULL".
2. Enter to the service mode and select mode
"REGULAR", item "REGULAR 8OSD". The OSD test
bar will appear on the top of screen.
3. Press the volume + or - key to adjust the proper OSD
positioning.
VERTICAL ADJUSTMENT
VERTICAL CENTRING ADJUSTMENT
1. Receive circular pattern and set screen mode to
"FULL".
2. Enter to the service mode and select mode "WIDE",
item "WIDE 6.P V-L".
3. Press the volume + or - key to adjust vertical centre.
VERTICAL HEIGHT ADJUSTMENT
1. Receive circular pattern and set screen mode to
"FULL".
2. Enter to the service mode and select mode "WIDE",
item "WIDE 4.P V-WA.
3. Press the volume + or - key to adjust proper vertical
height.
Adjustment Data
VIDEO LEVEL ADJUSTMENT
1. Receive colour bar pattern.
2. Connect oscilloscope to C155 (R175 side) and GND.
3. Adjust amplitude "a" to be 1.0Vp-p by using VR181.
"a"
Y-OUT LEVEL ADJUSTMENT
1. Receive colour bar pattern.
2. Connect oscilloscope to C7064 and GND.
3. Set controls to maximum.
3. Adjust amplitude "a" to be 1.0±0.05Vp-p by using
VR7001.
"a"
SCAN PLL ADJUSTMENT
1. Receive colour bar pattern and set controls to
maximum.
2. Connect oscilloscope to test point "TP-1" on the Scan
converter board.
3. Adjust voltage to be 2.7±0.2Vdc by using T7201.
HORIZONTAL ADJUSTMENT
HORIZONTAL CENTRING ADJUSTMENT
1. Receive circular pattern and set screen mode to
"FULL".
2. Enter to the service mode and select mode "WIDE",
item "WIDE 8.P H-P".
3. Press the volume + or - key to adjust horizontal centre.
HORIZONTAL WIDTH ADJUSTMENT
1. Receive circular pattern and set screen mode to
"FULL".
2. Enter to the service mode and select mode "WIDE",
item "WIDE 9.P H-W".
3. Press the volume + or - key to adjust horizontal centre.
PCC ADJUSTMENT
PCC-1 ADJUSTMENT(LINEARITY)
1. Receive cross hatch pattern and set screen mode to
"FULL".
2. Enter to the service mode and select mode "WIDE",
item "WIDE 11.P PCC".
3. Press the volume + or - key to adjust vertical linearity.
PCC-2 ADJUSTMENT(TILT)
1. Receive circular pattern and set screen mode to
"FULL".
2. Enter to the service mode and select mode "WIDE",
item "WIDE 16.P-TRP".
3. Press the volume + or - key to adjust the tilting of
vertical lines.
HIGH-VOLTAGE CONFIRMATION
1. Receive circular pattern and set screen mode to
"FULL".
2. Connect high-voltage meter to the anode of CRT and
GND.
3. Confirm that voltage is 30.5±1.0kV for 32" model.
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