ADJUSTMENT V Safety Precautions 1. It is safe to adjust after using insulating transformer between the power supply line and chassis input to PAL/SECAM-BG PAL/SECAM- SYSTEM PAL-I prevent the risk of electric shock and protect the SECAM-LL' BG/DK instrument. 2. Never disconnect leads while the TV receiver is on. TUNER 6700VPF005A 6700VPF005B 6700VPF005B 3. Don't short any portion of circuits while power is on. AGC Voltage 2.3 ! 0.1V 2.3 ! 0.1V 2.1 ! 0.1V 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 NOTE: AGC must be adjusted when the tuner was changed. 230Vac!10%, 50Hz.
V Test Equipment required O Screen Voltage Adjustment 1. Multimeter (volt meter) 2. Oscilloscope Test Point : RK (Red Cathode of CPT Board) Adjust : Screen Control of FBT
O RF AGC (Automatic Gain Control) Adjustment 1) Tune the TV set to receive a digital pattern. 2) Press PSM (RED) button on remote controller. (standard Test Point : RF AGC (J3) picture) Adjust : Remote Control 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 The RF AGC was aligned at the time of manufacture for same as below figure. optimum performance over a wide range conditions. Readjustment of RF AGC should not be necessary unless unusual local conditions exist, such as ; Horizontal FlyBack Time Black level 1) Channel interference in a CATV system. 150Vp-p 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 White level connected to an antenna distribution system where the RF 1H-LINE GND for dc signal has been amplified. In this case, the input signal should be attenuated (with pad or filter) to a satisfactory The waveform of RK(Red Cathode) of CPT Board 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. O Focus Adjustment
NOTE: This adjustment should be performed after warming up for 10 minutes. Adjustment 1. Connect RF signal (65dB) and turn on the TV. Test Point : Observing Display 2. Press OK buttons on TV set and Remote Controller at the Adjust : Focus control of FBT same time to get into SVC mode. 3. Press Channel UP/DOWN button on the Remote Controller 1) Tune the TV set to receive an inactive channel station. several times to find AGC. 2) Adjust the Focus control of FBT for best overall focus. 4. Press Volume UP/DOWN button until the AGC Voltage is the same as the Table below. 5. Press OK(Y) button to memorize the data. O SIF Adjustment
Test Point : VCO ADJ (2.5!0.1Vdc) Adjust : L691 (VCO Coil)
- 1 - O 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.
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 a Adjustment. 3) Press Volume UP/DOWN button to adjust the data. 4) Press OK button to memorize the adjusted data before exit b the SVC Mode.
2. Deflection Adjustment Procedure
VL (Vertical Linearity) Adjust so that the boundary line between upper and lower O White Balance Adjustment.(LINE SVC-0) half is in accord with geometric horizontal center of the CPT. NOTE : This adjustment should be performed after screen voltage VA (Vertical Amplitude) adjustment. Adjust so that the circle of a digital circle pattern may be located within the effective screen of the CPT. 1) Tune the TV set to receive an 100% white pattern. 2) Press OK(Y) buttons on TV set and remote controller at the SC (Vertical "S" Correction) same time to get into SVC mode. Adjust so that all distance between each horizontal lines are 3) Press PSM(RED) button on remote controller. (Standard to be the same. picture) 4) Press Channel UP/DOWN button for desirous function VS (Vertical Shift) adjustment. Adjust so that the horizontal center line of a digital circle 5) Adjust VOL+ or VOL- button for GG:31. pattern is in accord with geometric horizontal center of the 6) Adjust VOL+ or VOL-button in each status of "Rg--"/"Bg--" for CPT. X=283!8, Y=295!8 with color analyzer. 7) Press OK(Y) button to memorize the adjusted data. 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.
EW (Horizontal Width) Adjust to that a digital circle pattern looks like exact circle.
EP (East-west Parabolar) Adjust so that middle portion of the outermost left and right vertical line looks like parallel with vertical lines of the CPT.
EC (East-west Coner) 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.
VZ (Zoom Mode, Vertical Height) Select the zoom mode with ARC button and adjust the data until the lines "a" and "b" of figure are 3~5mm from the top, bottom and each sides of CPT.
- 2 - O OPTION Adjustment (SVC MODE:OPTION-1, OPTION-2) OPTION Data SYSTEM TOP LIST EYE DK NICAM 18 BG OFF OFF ON OFF NOTE: When the EEPROM has been replaced, the Option data should be restored as the function of individual system 19 II OFF OFF ON OFF and specification. 20 B+L ON OFF ON OFF 21 B+D ON OFF ON OFF 1) Press OK buttons on both TV set and Remote Controller at the same time to get into SVC mode. 22 BG ON OFF ON OFF 2) Press the Yellow button several times to find OPTION-1 or 23 II ON OFF ON OFF OPTION-2. 24 B+L OFF ON ON OFF 3) Input the correspond OPTION data referring to Table below with the numeric buttons 0~9. 25 B+D OFF ON ON OFF 4) Press OK button to memorize the adjusted data before exit 26 BG OFF ON ON OFF the SVC Mode. 27 II OFF ON ON OFF 28 B+L ON ON ON OFF 29 B+D ON ON ON OFF Table 1. OPTION 1. Function & DATA 30 BG ON ON ON OFF Option Code Function Remark 31 II ON ON ON OFF M+L BG+LL' CL-Model France 32 B+L OFF OFF OFF ON B+D BG+DK CK-Model SYSTEM 33 B+D OFF OFF OFF ON BG BG Only CB-Model 34 BG OFF OFF OFF ON II II Only CI-Model U.K 35 II OFF OFF OFF ON OFF TOP OFF W/O TXT or FLOF TOP 36 B+L ON OFF OFF ON ON TOP ON Germany, Swiss, Austria 37 B+D ON OFF OFF ON OFF LIST OFF W/O TXT Model LIST 38 BG ON OFF OFF ON ON LIST ON With TXT Model 39 II ON OFF OFF ON OFF EYE OFF EYE 40 B+L OFF ON OFF ON ON EYE ON 41 B+D OFF ON OFF ON DK OFF D/K NICAM OFF Stereo Option 42 BG OFF ON OFF ON NICAM ON D/K NICAM SYSTEM 43 II OFF ON OFF ON 44 B+L ON ON OFF ON OPTION Data SYSTEM TOP LIST EYE DK NICAM 45 B+D ON ON OFF ON 00 B+L OFF OFF OFF OFF 46 BG ON ON OFF ON 01 B+D OFF OFF OFF OFF 47 II ON ON OFF ON 02 BG OFF OFF OFF OFF 48 B+L OFF OFF ON ON 03 II OFF OFF OFF OFF 49 B+D OFF OFF ON ON 04 B+L ON OFF OFF OFF 50 BG OFF OFF ON ON 05 B+D ON OFF OFF OFF 51 II OFF OFF ON ON 06 BG ON OFF OFF OFF 52 B+L ON OFF ON ON 07 II ON OFF OFF OFF 53 B+D ON OFF ON ON 08 B+L OFF ON OFF OFF 54 BG ON OFF ON ON 09 B+D OFF ON OFF OFF 55 II ON OFF ON ON 10 BG OFF ON OFF OFF 56 B+L OFF ON ON ON 11 II OFF ON OFF OFF 57 B+D OFF ON ON ON 12 B+L ON ON OFF OFF 58 BG OFF ON ON ON 13 B+D ON ON OFF OFF 59 II OFF ON ON ON 14 BG ON ON OFF OFF 60 B+L ON ON ON ON 15 II ON ON OFF OFF 61 B+D ON ON ON ON 16 B+L OFF OFF ON OFF 62 BG ON ON ON ON 17 B+D OFF OFF ON OFF 63 II ON ON ON ON
- 3 - Table 2. OPTION 2. Function & DATA Option Code Function Remark 0 GAI 1 Amplify Y signal GAIN 6dB 0 14 OSD LANG. 5LANG 1 5 OSD LANG. ENG,FNC,GMN,SPN,ITL OFF ACMS OFF W/O TXT Model ACMS ON ACMS ON With TXT Model OFF Headphone Off HP ON Headphone On
OPTION Data GAI 5LANG ACMS HP 00 0 0 OFF OFF 01 0 1 OFF OFF 02 1 0 OFF OFF 03 1 1 OFF OFF 04 0 0 ON OFF 05 0 1 ON OFF 06 1 0 ON OFF 07 1 1 ON OFF 08 0 0 OFF ON 09 0 1 OFF ON 10 1 0 OFF ON 11 1 1 OFF ON 12 0 0 ON ON 13 0 1 ON ON 14 1 0 ON ON 15 1 1 ON ON