Service Manuals, User Guides, Schematic Diagrams or docs for : LG TV ct-29q10et 064ats
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ADJUSTMENT INSTRUCTIONS
V Safety Precautions O SECAM-L' Adjustment
1. It is safe to adjust after using insulating transformer between
the power supply line and chassis input to prevent the risk of NOTE : This adjustment should be performed after PIF
electric shock and protect the instrument. adjustment.
2. Never disconnect leads while the TV receiver is on.
3. Don't short any portion of circuits while power is on. Test Point : TP1
4. The adjustment must be done by the correct appliances.
5. Unless otherwise noted, set the line voltage to 230Vac!10%, Adjust : VR102
50Hz.
1) Turn on S1 and S3 and off S2.
V Test Equipment required 2) Adjust VR102 so that the DC voltage may be indicated
1. RF signal generator (with pattern generator)
2.5!0.1Vdc.
2. DC Power Supply
3. Multimeter (volt meter)
4. Oscilloscope
5. Color analyzer
O RF AGC (Automatic Gain Control) Adjustment
Main Board(Component side view) Test Point : TP2 (J8) or Observing Display
Adjust : VR101
V Multimeter or Oscilloscope
1
The RF AGC control (VR101) was aligned at the time of
IC101
Power- JP7 IC05 manufacture for optimum performance over a wide range
TDA4474
Supply conditions. Readjustment of VR101 should not be necessary
5V JP4 IC102 TP1 24 Signal-
0.01pF Generator unless unusual local conditions exist, such as ;
5V 7 JP1 38.9MHz (B/G,D/K,I,L)
L107 34.25MHz (SECAM-L')
11 JP2 1) Channel interference in a CATV system.
4.7k
S3 16 2) Picture bending and/or color beats, which are unusually due
JP5 VR102 to excessive RF signal input when the receiver is too close
Q106
to a transmitting tower or when the receiver is connected to
S2 VR102
100 15 an antenna distribution system where the RF signal has
JP3 been amplified. In this case, the input signal should be
100
attenuated (with pad or filter) to a satisfactory level.
S1 3) Picture noise caused by "broadcast noise" or weak signal.
If the broadcast is "clean" and the RF signal is at least 1mV
(60dBu), the picture will be noise free in any area.
Fig. 1 : Connection Diagram of Equipment for PIF Adjustment
Adjusting the VR101(RF AGC) control to one end of rotation
will usually cause a relatively poor signal to noise ratio;
Adjusting to the other end of rotation will usually cause a
degradation of over load capabilities resulting in color beats or
O PIF (Picture Intermediate Frequency) Adjustment
adjacent channel interference. For best results, adjust the
VR101 control while performing on all over local channels, or
Test Point : TP1 the voltage at TP2 will be 2.3!0.1Vdc in RF level 65!1dBuV.
Adjust : L107
1) Connect the measuring equipment to the Main Board as
shown in Fig.1.
2) Set RF frequency and output level of RF SIGNAL
GENERATOR as shown Table 1.
3) Turn off S1 and S3 and on S2.
4) Adjust L107 so that the DC voltage may be 2.5!0.1Vdc.
System Frequency Modulation Output level Adjust
B/G,D/K/I,SECAM-L 38.9MHz OFF 10mVp-p L107
SECAM-L' 34.25MHz OFF 10mVp-p VR102
(Table 1)
- 1 -
O Screen Voltage Adjustment O Deflection Data Adjustment (Line SVC-1)
Test Point : RK (Red Cathode of CPT Board) NOTE: To enter SVC mode, press "OK" buttons on both TV
set and the Remote control at the same time.
Adjust : Screen Control of FBT
1. Preparation for Deflection Adjustment
1) At SVC mode, press the Yellow colored button.
1) Tune the TV set to receive a digital pattern. If the Remote Controller doesn't have the Yellow button,
2) Press MIX button on remote controller for Service to get use the button under the Channel Down(PR U) button.
into the Screen Adjust Mode. And then, deflection data adjustment OSD (SVC1 mode)
3) Adhere the Color Analyzer on the White window of CPT will be displayed.
face. 2) Press Channel UP/DOWN button for desirous function
4) Adjust Screen Volume of FBT so that the luminance of Adjustment.
White window is 40!1ft/L. 3) Press Volume UP/DOWN button to adjust the data.
White window OSD
VL--(Vertical Linearity)
Adjust so that the boundary line between upper and lower half is
in accord with geometric horizontal center of the CPT.
VH--(Vertical Height)
SCREEN ADJUST MODE Adjust so that the circle of a digital circle pattern may be located
within the effective screen of the CPT.
Fig. 2 SVC MODE for SCREEN Adjust SC--(Vertical "S" correction)
Adjust so that all distance between each horizontal lines are to
be the same.
O Focus Adjustment
NOTE: This adjustment should be performed after warming VS--(Vertical Shift)
up for 10 minutes. Adjust so that the horizontal center line of a digital circle pattern
is in accord with geometric horizontal center of the CPT.
Test Point : Observing Display
Adjust : Focus control of FBT HS--(Horizontal Shift)
Adjust so that the vertical center line of a digital circle pattern is
in accord with geometric vertical center of the CPT.
1) Tune the TV set to receive a digital pattern.
2) Adjust the lower Focus control of FBT for the best focus of
vertical line B. EW--(Horizontal Width)
3) Adjust the upper Focus control of FBT for the best focus of Adjust to that a digital circle pattern looks like exact circle.
area A.
4) Repeat above step 2) and 3) for the best overall focus.
EP--(East-west Parabola)
Adjust so that middle portion of the outermost left and right
vertical line looks like parallel with vertical lines of the CPT.
A B EC--(East-west Corner)
Adjust so that the vertical line at every 4 corners of the screen
looks like parallel with the vertical lines of the CPT.
ET--(East-west Trapezium)
Adjust to make the length of top horizontal line same with it of the
bottom horizontal line.
b
Fig. 3
- 2 -
Menu Range LG 29" Flat REMARKS(n60Hz) O Hold Down Check(X-ray Protection)
VL 0~63 28 28 1) Short the both terminal of R430 on the Main2 Board and
check if the TV set turns into Stand-by.
VA 0~63 27 -1 26
SC 0~63 16 16
D407 To CPT(HT)
VS 0~63 29 29
HS 0~63 18 +12 30 Abnormal R430
Short FR401
EW 0~63 37 37
EP 0~63 29 29
EC 0~63 32 32
Fig. 4
ET 0~63 30 30
VZ 0~63 31 31
(Table 2)
O White Balance Adjustment.(LINE SVC 0)
NOTE : This adjustment should be performed after screen
voltage adjustment.
1) Tune the TV set to receive an 100% white pattern.
2) Press the Yellow button on remote controller in the SVC
Mode (press OK buttons on both TV set and remote
controller at the same time) then you can find On Screen
Display.
3) Press PSM (RED) button on remote controller. (Standard
picture)
4) Press PR+ or PR- button for desirous function adjustment.
5) Adjust VOL+ or VOL- button for Gg31.
6) Adjust VOL+ or VOL-button in each status of "Rg--"/"Bg--" for
X=272!8, Y=295!8 with color analyzer (color temperature
11,000oK).
Menu Range LG 29" Flat REMARKS
RG 0~63 31
GG 0~63 31
BG 0~63 31
Y-dly 0~15 12 15(D/K, I)
(Table 3)
- 3 -
O OPTION Adjustment (SVC MODE:OPTION-1, OPTION
OPTION-2, OPTION-3) M-sys L-sys China SCART Lang1 Lang0
Data
NOTE: When the EEPROM has been replaced, the Option data 19 0 1 0 0 1 1
should be restored as the function of individual system 20 0 1 0 1 0 0
and specification. 21 0
0 1 0 1 1
1) Press OK buttons on both TV set and Remote Controller at 22 0 1 0 1 1 0
the same time to get into SVC mode.
23 0 1 0 1 1 1
2) Press the Yellow button several times to find OPTION-1,
OPTION-2 and OPTION-3. 24 0 1 1 0 0 0
3) Input the correspond OPTION data referring to Table below 25 0 1 1 0 0 1
with the numeric buttons 0~9.
26 0 1 1 0 1 0
Table 1. OPTION 1 Function 27 0 1 1 0 1 1
Option Code Function Remark 28 0 1 1 1 0 0
0 Without NTSC-M Not available with 29 0 1 1 1 0 1
M-sys
1 With NTSC-M SECAM-L/L' 30 0 1 1 1 1 0
0 Without SECAM-L/L' Not available with 31 0 1 1 1 1 1
L-sys
1 With SECAM-L/L' NTSC-M 32 1 0 0 0 0 0
0 CCIR CH. Table 33 1 0 0 0 0 1
China
+AU 1 China CH. Table 34 1 0 0 0 1 0
0 Phono jack(AV1) 35 1 0 0 0 1 1
SCART
1 Scart jack(AV1) RGB input/Auto AV 36 1 0 0 1 0 0
Lang1 Lang0 OSD Language 37 1 0 0 1 0 1
0 0 English Only 38 1 0 0 1 1 0
1 0 English or Arabic/Parsi/ 39 1 0 0 1 1 1
0 1 English or Chines 40 1 0 1 0 0 0
1 1 English or Deutsch/Franch/Italiano.Spanish 41 1 0 1 0 0 1
42 1 0 1 0 1 0
Table 2. Specifications for OPTION-1 data 43 1 0 1 0 1 1
OPTION 44 1 0 1 1 0 0
M-sys L-sys China SCART Lang1 Lang0
Data 45 1 0 1 1 0 1
0 0 0 0 0 0 0 46 1 0 1 1 1 0
1 0 0 0 0 0 1 47 1 0 1 1 1 1
2 0 0 0 0 1 0
3 0 0 0 0 1 1
4 0 0 0 1 0 0
5 0 0 0 1 0 1
6 0 0 0 1 1 0
7 0 0 0 1 1 1
8 0 0 1 0 0 0
9 0 0 1 0 0 1
10 0 0 1 0 1 0
11 0 0 1 0 1 1
12 0 0 1 1 0 0
13 0 0 1 1 0 1
14 0 0 1 1 1 0
15 0 0 1 1 1 1
16 0 1 0 0 0 0
17 0 1 0 0 0 1
18 0 1 0 0 1 0
- 4 -
Table 3. OPTION 2 Function
Option Code Function Remark OPTION
TOP DCF TILT EYE Woofer V-curve
0 Without TOP Teletext Set to 0 for no TXT Data
TOP
1 With TOP Teletext 28 0 1 1 1 0 0
0 Without DCF(Digital Comb-Filter) Set to 1 for DCF board 29 0 1 1 1 0 1
DCF
1 With DCF 30 0 1 1 1 1 0
0 Without TILT circuit Set to 1 for Degaussing 31 0 1 1 1 1 1
TILT
1 With TILT circuit Coil with TILT 32 1 0 0 0 0 0
0 Without EYE Set to 1 for EYE 33 1 0 0 0 0 1
EYE
1 With EYE module 34 1 0 0 0 1 0
0 Without Woofer Set to 0 for Squitter 35 1 0 0 0 1 1
Woofer
1 With Woofer AMP 36 1 0 0 1 0 0
0 Normal Volume curve(Europe, CIS) Set to 1 for South East 37 1 0 0 1 0 1
V-
curve 1 Rapid Volume curve(South Asia and China 38 1 0 0 1 1 0
East Asia, China) 39 1 0 0 1 1 1
40 1 0 1 0 0 0
41 1 0 1 0 0 1
Table 4. Specifications for OPTION-2 data 42 1 0 1 0 1 0
OPTION 43 1 0 1 0 1 1
TOP DCF TILT EYE Woofer V-curve
Data 44 1 0 1 1 0 0
0 0 0 0 0 0 0 45 1 0 1 1 0 1
1 0 0 0 0 0 1 46 1 0 1 1 1 0
2 0 0 0 0 1 0 47 1 0 1 1 1 1
3 0 0 0 0 1 1 48 1 1 0 0 0 0
4 0 0 0 1 0 0 49 1 1 0 0 0 1
5 0 0 0 1 0 1 50 1 1 0 0 1 0
6 0 0 0 1 1 0 51 1 1 0 0 1 1
7 0 0 0 1 1 1 52 1 1 0 1 0 0
8 0 0 1 0 0 0 53 1 1 0 1 0 1
9 0 0 1 0 0 1 54 1 1 0 1 1 0
10 0 0 1 0 1 0 55 1 1 0 1 1 1
11 0 0 1 0 1 1 56 1 1 1 0 0 0
12 0 0 1 1 0 0 57 1 1 1 0 0 1
13 0 0 1 1 0 1 58 1 1 1 0 1 0
14 0 0 1 1 1 0 59 1 1 1 0 1 1
15 0 0 1 1 1 1 60 1 1 1 1 0 0
16 0 1 0 0 0 0 61 1 1 1 1 0 1
17 0 1 0 0 0 1 62 1 1 1 1 1 0
18 0 1 0 0 1 0 63 1 1 1 1 1 1
19 0 1 0 0 1 1
20 0 1 0 1 0 0
21 0 1 0 1 0 1
22 0 1 0 1 1 0
23 0 1 0 1 1 1
24 0 1 1 0 0 0
25 0 1 1 0 0 1
26 0 1 1 0 1 0
27 0 1 1 0 1 1
- 5 -
Table 5. OPTION 3 Function OPTION DKNica Max.
ACMS H-phone VM Hotel
Data m vol
Option Code Function Remark
0 Without Auto Channel Memory System Set to 0 for no 54, 55 1 0 1 1 0 *
ACMS
1 With Auto Channel Memory System TXT 56, 57 1 0 1 1 1 *
0 D/K stereo Set to 1 for 58, 59 1 1 0 0 0 *
DKNic
am 1 Without DK stereo Chinese Model 60, 61 1 1 0 0 1 *
0 Without H/P jack Set to 1 for H/P jack 62, 63 1 1 0 1 0 *
H-
Phone 1 With H/P jack
0 Without VM Set to 1 for VM
VM
1 With VM coil magnet
0 Buyer option O Sound Pre scaler
Without Hotel mode
Hotel
1 With Hotel mode 1) Set to Scart when one of AV1 or AV2 is Scart jack.
Max. 0~ Maximum volume level for Hotel Defalt Audio out level : 500mVrms at 54% modulation ratio
vol 2) Set to Phono when both of AV1 and AV2 is RCA Phono jack.
100 mode data(Normal=36steps)
Audio out level : 500mVrms at 100% modulation ratio.
(NTSC-M : 400mVrms)
Table 6. Specifications for OPTION-3 data
[ MSP3410(3400) Pre-scaler setting
OPTION DKNica Max. Scart Phono SECAM-L/L' model
ACMS H-phone VM Hotel
Data m vol Menu Description
B/G,D/K,I M B/G,D/K,I M B/G,D/K,I L/L'
0, 1 0 0 0 0 0 *
FP FM Pre-scaler 20 40 20 40 20 20
2, 3 0 0 0 0 1 *
NP Nicam Pre-scaler 85 85 85 85 85 85
4, 5 0 0 0 1 0 *
SP Scart Pre-scaler 20 20 47 47 20 25
6, 7 0 0 0 1 1 *
S1 vol Scart1 Pre-scaler 110 110 50 50 110 80
8, 9 0 0 1 0 0 *
S2 vol Scart2 Pre-scaler 110 110 50 50 110 80
10, 11 0 0 1 0 1 *
12, 13 0 0 1 1 0 *
14, 15 0 0 1 1 1 *
16, 17 0 1 0 0 0 *
18, 19 0 1 0 0 1 *
20, 21 0 1 0 1 0 *
22, 23 0 1 0 1 1 *
24, 25 0 1 1 0 0 *
26, 27 0 1 1 0 1 *
28, 29 0 1 1 1 0 *
30, 31 0 1 1 1 1 *
32, 33 1 0 0 0 0 *
34, 35 1 0 0 0 1 *
36, 37 1 0 0 1 0 *
38, 39 1 0 0 1 1 *
40, 41 1 0 1 0 0 *
42, 43 1 0 1 0 1 *
44, 45 1 0 1 1 0 *
46, 47 1 0 1 1 1 *
48, 49 1 1 0 0 0 *
50, 51 1 1 0 0 1 *
52, 53 1 1 0 1 0 *
- 6 -
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