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ADJUSTMENT
¡ Safety Precautions
1. It is safe to adjust after using insulating transformer between the power supply line and chassis input to prevent the risk of electric shock and protect the instrument. 2. Never disconnect leads while the TV receiver is on. 3. Don't short any portion of circuits while power is on. 4. The adjustment must be done by the correct appliances. But this is changeable in view of productivity. 5. Unless otherwise noted, set the line voltage to 230Vac¡ 10%, 50/60Hz. Model System Tuner P/N Marker AGC Voltage CEPAL/SECAM-B/G,D/K.I 6700VPF005B LGEC 2.5¡ 0.1V CLPAL/SECAM-B/G,LL' 6700VPF005A LGEC 2.5¡ 0.1V
¡ Screen Voltage Adjustment
Test Point Adjust : RK (Red Cathode of CPT Board) : Screen Control of FBT
¡ Test Equipment required
1. Multimeter (volt meter) 2. Oscilloscope
¡ RF AGC (Automatic Gain Control) Adjustment
Test Point Adjust : AGC TP (J05) : Remote Control
1) Tune the TV set to receive a digital pattern. 2) Press PSM (RED) button on remote controller. (standard picture) 3) Connect the probe of oscilloscope to the RK (Red Cathode) of CPT Board. 4) Adjust Screen Volume of FBT so that the waveform is the same as below figure.
Horizontal FlyBack Time
The RF AGC was aligned at the time of manufacture for optimum performance over a wide range conditions. Readjustment of RF AGC should not be necessary unless unusual local conditions exist, such as ; 1) Channel interference in a CATV system. 2) Picture bending and/or color beats, which are unusually due to excessive RF signal input when the receiver is too close to a transmitting tower or when the receiver is connected to an antenna distribution system where the RF signal has been amplified. In this case, the input signal should be attenuated (with pad or filter) to a satisfactory level. 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. Adjusting RF AGC 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 adjacent channel interference.
Black level 160Vp-p
1H-LINE
White level GND for dc
The waveform of RK(Red Cathode) of CPT Board
¡ Focus Adjustment
NOTE: This adjustment should be performed after warming up for 10 minutes. Test Point Adjust : Observing Display : Focus control of FBT
Adjustment
1. Connect RF signal (65dB¡ 1dB) and turn on the TV. ¡ Standard adjustment Channel - EU 05 Ch. (frf = 175.25MHz) : CK, CL, CB - EU 41 Ch. (frf = 631.25MHz) : CI 2. Press OK buttons on TV set and Remote Controller at the same time to get into SVC-0 mode. 3. Press Channel UP/DOWN button on the Remote Controller several times to find AGC??. 4. Press Volume UP/DOWN button until the AGC Voltage is the same as the Table below. 5. Press OK(¡Æ button to memorize the data. )
1) Tune the TV set to receive an inactive channel station. 2) Adjust the Focus control of FBT for best overall focus.
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¡ Deflection Data Adjustment (Line SVC-1)
NOTE: To enter SVC mode, press "OK" buttons on both TV set and the Remote control at the same time.
¡ 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 OK(¡Æ) buttons on TV set and remote controller at the same time to get into SVC mode. 3) Press PSM(RED) button on remote controller. (Standard picture) 4) Press Channel UP/DOWN button for desirous function adjustment. 5) Adjust VOL+ or VOL- button for GG031. 6) Adjust VOL+ or VOL-button in each status of "Rg--"/"Bg--" for X=283¡ 8, Y=295¡ 8 with color analyzer. 7) Press OK(¡Æ) button to memorize the adjustment data. Status RG GG BG Adjustment R-Drive G-Drive B-Drive Initial Data 28 31 25 Remark
1. Preparation for Deflection Adjustment
1) At SVC mode, press the Yellow colored button. If the Remote Controller doesn't have the Yellow button, you should use a Service Remote Control (105-201G) and press SVC button. And then, deflection data adjustment OSD (SVC1 mode) will be displayed. 2) Press Channel UP/DOWN button for desirous function Adjustment. 3) Press Volume UP/DOWN button to adjust the data.
2. Deflection Adjustment Procedure
VL (Vertical Linearity) Adjust so that the boundary line between upper and lower half is in accord with geometric horizontal center of the CPT. VA (Vertical Amplitude) Adjust so that the circle of a digital circle pattern may be located within the effective screen of the CPT. SC (Vertical "S" Correction) Adjust so that all distance between each horizontal lines are to be the same. VS (Vertical Shift) Adjust so that the horizontal center line of a digital circle pattern is in accord with geometric horizontal center of the CPT. 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. Press OK(¡Æ button to memorize the data. )
3. Deflection Initial Setup Data
Status VL VS VA HS SC
Default 38 25 30 32 11
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¡ OPTION Adjustment (SVC MODE:OPTION-1, OPTION-2)
NOTE: When the EEPROM has been replaced, the Option data should be restored as the function of individual system and specification. 1) Press OK buttons on both TV set and Remote Controller at the same time to get into SVC mode. 2) Press the Yellow button several times to find OPTION-1 or OPTION-2. 3) Input the correspond OPTION data referring to Table below with the numeric buttons 0~9.
Data 21 22 23 24 25 26 27 28
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS ACMS OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK
EU 5 EU 5 EU 5 EU 12 EU 12 EU 12 EU 12 ARAB ARAB ARAB ARAB English Only English Only English Only English Only EU 5 EU 5 EU 5 EU 5 EU 12 EU 12 EU 12 EU 12 ARAB ARAB ARAB ARAB English Only English Only English Only English Only EU 5 EU 5 EU 5 EU 5 EU 12 EU 12 EU 12 EU 12
BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M
Table 1. OPTION 1 Function
29 ACMS Data 0 1 2 3 Bit5 NO ACMS ACMS X X CHINA Bit4 OIRT DK HINA DK/B X X NANGUAGE Bit3 Bit2 SYSTEM 30 Bit1 Bit0 31 English Only EU 5 EU 12 ARAB BG Only 32 BG + L 33 BG + DK + I 34 BG + DK + I +M 35 36
Table 2. Specifications for OPTION-1 data
37 Data 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Bit5 NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS NO ACMS Bit4 OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK OIRT DK Bit3 Bit2 Bit1 Bit0 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
English Only English Only English Only English Only EU 5 EU 5 EU 5 EU 5 EU 12 EU 12 EU 12 EU 12 ARAB ARAB ARAB ARAB English Only English Only English Only English Only EU 5
BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only BG + L BG + DK + I BG + DK + I +M BG Only
NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB NO ACMS China DK/BB
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Data 60 61 62 63
Bit5 ACMS ACMS ACMS ACMS
Bit4 China DK/BB China DK/BB China DK/BB China DK/BB
Bit3
Bit2
Bit1
Bit0
Data 17 18 19 20 21
Bit4 T search T search T search T search T search T search T search T search T search T search T search T search T search T search T search
Bit3 No Game No Game No Game No Game No Game No Game No Game Game Game Game Game Game Game Game Game
Bit2 No TEXT No TEXT No TEXT TEXT TEXT TEXT TEXT No TEXT No TEXT No TEXT No TEXT TEXT TEXT TEXT TEXT
Bit1 No TOP TOP TOP No TOP No TOP TOP TOP No TOP No TOP TOP TOP No TOP No TOP TOP TOP
Bit0 Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel
ARAB ARAB ARAB ARAB
BG Only BG + L BG + DK + I BG + DK + I +M
Table 3. TELETEXT Language
Data 0 1 2 3 4 Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0
22 23 24 25 26 27 28 29 30
West Europe East Europe Turkish/Greek Cyrillic(CIS) Farsi(ARAB)
Table 4. OPTION 2 Function
TURBO Data 0 1 Bit4 No Yes GAME Bit3 No Yes TEXT Bit2 No Yes TOP Bit1 No Yes HOTEL Bit0 No Yes
31
Table 5. Specifications for OPTION-2 data
Data 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Bit4 No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo No Turbo T search Bit3 No Game No Game No Game No Game No Game No Game No Game No Game Game Game Game Game Game Game Game Game No Game Bit2 No TEXT No TEXT No TEXT No TEXT TEXT TEXT TEXT TEXT No TEXT No TEXT No TEXT No TEXT TEXT TEXT TEXT TEXT No TEXT Bit1 No TOP No TOP TOP TOP No TOP No TOP TOP TOP No TOP No TOP TOP TOP No TOP No TOP TOP TOP No TOP Bit0 No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel Hotel No Hotel
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