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KTV (Tri-Norma)
Performance Specification Alignment and Adjustments
July.07, 2004
TERAVISION CORPORATION
1. Pre-adjustment
1-1 Factory Mode
1. Do not attempt these adjustments in the Video Mode. 2. The Factory Mode adjustments are necessary when either the EEPROM (Q002)the CRT is replaced.
1-2 When EEPROM (Q002) Replaced
1. When Q501 is replaced all adjustment data revert to initial values. It is necessary to re-program this data. 2. After Q002 replaced, warm up the TV for 10 seconds.
1-3 When CRT Is Replaced
1. Make the following adjustments after setting up purity and convergence : White Balance : GDRV, BDRV, RDC, GDC, BDC Sub-Brightness : SBRT S correction : SC Vertical Center : VSH Vertical Centering : VRS (EW mode) Vertical Size : VA Vertical linearity : VL Horizontal Shift : HRS
Horizontal Size : HSI (EW mode)
Parabola : PAR (EW mode) Trapezium : TRA (EW mode) EW Collection Top : EWT (EW mode) EW Collection Bottom : EWB (EW mode)
2. Factory Mode
2- Procedure for the Factory adjustment mode
1. This mode uses the special remote control. The Service Mode is activated by entering "Service" key. If you don't have a "Service" key then turn off the TV at first and press follow keys within 2 seconds in regular sequence " DISPLAY +MENU + 3 +8 + POWER " (If keys are wrongly pressed, then re-do from the beginning.) 2. The SERVICE menu will be displayed. The Service Mode has five components: Service mode, Design mode, Shipping mode, Manufacturing mode, Test pattern, Heat run mode. 3. Access Service mode by pressing "1" keys. The adjustment parameters are displayed in sequence, and selected by pressing the CHANNEL keys().
4. The VOLUME keys () increase or decrease the adjustment values (stored in the non-volatile memory). 5. Repeat above sequence to adjust CRT Adjustment and Picture Adjustment and etc. 6. Cancel the Service mode by re-pressing the "Service" keys, and returns to Factory Menu. If you don't have a "Service" key you have to turn off the TV to exit from service mode
2-0 Factory Adjustment Parameter in ADJUST mode
MENU FUNCTION OSD DISPLAY
HORIZONTAL SHIFT D E F HORIZONTAL SIZE VERTICAL AMPLITUDE VERTICAL CENTERING VERTICAL LINEARITY & S-CORRECTION PARABOLA E / W ZOOM PARABOLA WIDE PARABOLA HORIZONTAL EHT VERTICAL SHIFT VERTICAL EHT TRAPEZIUM EW-CORNER COLLECTION TOP EW-CORNER COLLECTION BOTTOM ZOOM CONTROL ZOOM TRAPEZIUM ZOOM EW-CORNER COLLECTION TOP ZOOM EW-CORNER COLLECTION BOTTOM VERTICAL BLANKING WIDE (16:9) CONTROL WIDE TRAPEZIUM WIDE EW-CORNER COLLECTION TOP WIDE EW-CORNER COLLECTION BOTTOM RED CUT-OFF C R GREEN CUT-OFF BLUE CUT-OFF HSH(HRS) HSI VA VCE(VRS) VL SC PAR ZPAR WPAR HEH VSH VEH TRA EWT EWB ZOOM ZTRA ZEWT ZEWB ZBLK WIDE WTRA WEWT WEWB RDC GDC BDC 0 ~ 31 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 15 STEP 0 ~ 15 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 63 STEP 0 ~ 7 STEP 0 ~ 7 STEP 0 ~ 7 STEP 0 ~ 63 STEP 0 ~ 31 STEP 0 ~ 31 STEP 0 ~ 31 STEP 0 ~ 63 STEP 0 ~ 31 STEP 0 ~ 31 STEP 0 ~ 3 STEP 0 ~ 31 STEP 0 ~ 63 STEP 0 ~ 31 STEP 0 ~ 31 STEP 0 ~ 255 STEP 0 ~ 255 STEP 0 ~ 255 STEP
RANGE
INITIAL DATA (LG CRT)
17 44 32 16 13 11 35 40 19 5 3 4 38 9 9 6 35 8 8 2 18 40 9 10 70 70 70
T
GREEN DRIVE GAIN BLUE DRIVE GAIN DISABLE VERTICAL OUTPUT
GDRV BDRV VSD AGC SCON SBRT SCOL STIN SNCL SSHR
0 ~ 127 STEP 0 ~ 127 STEP Off-On 0 ~ 63 STEP 0 ~ 15 STEP 0 ~ 31 STEP 0 ~ 31 STEP 0 ~ 31 STEP 0 ~ 31 STEP 0 ~ 31 STEP
55 60 Off (0) 25 10 7 28 0 0 10
P I C T U R E
AUTO GAIN CONTROL SUB CONTRAST SUB BRIGHT SUB COLOR SUB TINT NTSC SUB COLOR SUB SHARPNESS
2-1 Factory Adjustment Parameter in SERVICE mode
MENU FUNCTION OSD DISPLAY
P I C T U R E IF FREQUENCY SELECTION SHOOT SYMETRIC UV CONVERTER Y DELAY Y GAMMA BLACK STRETCH PEAK WHITE LIMIT ABL GAIN S.V.M DELAY S.V.M GAIN ON SCREEN LEVEL O S D ON SCREEN ABCL ON SCREEN H-SIZE ON SCREEN H POSITION ON SCREEN V-POSITION BUS BUS STOP RIGHT H-POSITION LEFT H-POSITION LOWER VERTICAL POSITION UPPER VERTICAL POSITION TIF ASSH UVC Y DL Y GA B ST YPL ABL SVMD SVMG OSDL OSDA OSDF OSDH OSDV BUS PHRP PHLP PVLP PVUP 0 ~ 7 STEP 0 ~ 7 STEP 0 ~ 7 STEP 0 ~ 7 STEP 0 ~ 3 STEP 0 ~ 3 STEP Off-On 0~3 0 ~ 3 STEP 0 ~ 3 STEP 0 ~ 3 STEP Off-On 0 ~ 105 STEP 0 ~ 31 STEP 0 ~ 31 STEP Off-On 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63
RANGE
INITIAL DATA (LG CRT)
1 0 1 7 1 2 On (1) 2 3 3 2 On (0) 70 10 21 Off (0) 23 45 20 20
LUMINANCE OFFSET HUE CONTROL BLANKING LEVEL RED P I P BLANKING LEVEL GREEN BLANKING LEVEL BLUE CONTRAST BRIGHTNESS PEAK LEVEL RED PEAK LEVEL GREEN PEAK LEVEL BLUE COLOR Y PEAK ADJUSTMENT S O U N D U P C 1 8 5 1 VOLUME CURVE VOLUME CURVE VOLUME CURVE VOLUME CURVE VOLUME CURVE Input level setting Stereo VCO setting Filter setting Low band separation setting High band separation setting SAP VCO setting
PLUM PHUE PBLR PBLG PBLB PCON PBRT PPKR PPKG PPKB PCOL PYPK V01 V15 V30 V50 V75 LVL STVC FILT LBS HBS SAVC
0~3 0 ~ 63 0 ~ 15 0 ~ 15 0 ~ 15 0 ~ 15 0 ~ 15 0 ~ 127 0 ~ 127 0 ~ 127 0 ~ 15 0~7 0 ~ 127 0 ~ 127 0 ~ 127 0 ~ 127 0 ~ 127 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63 0 ~ 63
3 30 0 0 0 5 2 50 85 120 8 5 5 21 31 40 7 8 40 21 0 22 38
2-2 Design mode
In the Factory mode, various options can be selected via the Design mode.
Brand name feature (BRN) initial data : 1
On the first st-by on after mains power on a brand name will be displayed. This feature configures which brand name has to be displayed. Also same brand name will appear in self-demonstration feature.
BRN 0 1
Status Brand name assigned by NAM item Brand name assigned by NAM item MENU Color & Icon is different
Programmable Brand Name (NAM)
Input Customer's brand name whatever manufacturers want.
Switch On mode (SW) initial data : 0
This setting is to configure st-by action when set is made on from Ac mains. SW 0 1 2 3 Power on action Set will be forced to last power status at each mains power on Set will be forced to st-by on at each mains power on Set will be forced to st-by off at each mains power on Not allowed but if configured will act similar to (SW=1)
AV mode (AV) initial data :4
AV 0 1 2 3 4 5 TV-AV TV-AV-S VHS TV-AV-DVD TV-AV-DVD -S VHS TV-AV1 (S VHS) -AV2-DVD TV-AV1 (S VHS) -AV2 Need Audio S/W Need Audio S/W Mode Switching Circuit
Channel switch over delay (CDL) initial data : 2
This parameter will set the video mute time delay during channel change over and TV/AV switching. CDL can be set to 0 through 7. Channel delay time = CDL * 320 milliseconds.
Zoom feature (ZOO) initial data : 2
No of zooms can be configured by this parameter ZOO 0 1 2 3 Zoom feature will be disabled Normal + Zoom Normal + Wide + Zoom Normal + Wide Power on action
Over modulation (OMO)
initial data : 1
Over modulation switch (120%) will be activated if OMO = 1
Noise reducer feature (NR) initial data : 1
Noise reducer feature in the picture menu will be disabled if NRF = 0
Curtain (CUR) initial data : 1 power off only , 0=Disabled, 1=Activated AV Start (AVS)
0 1 2 3
initial data : 0
Status Last status Force RF Force AV1 Not available
AV Start
Plug and Play (PLU) initial data : 1
Plug and Play feature will be disabled if the value is set to 0. It is enabled when the value is set to 1.
Color System (COL) initial data : 3
AUTO 0 1 2 3 4 O O PAL N PAL O O PAL PAL N O O O O PAL M NTSC4.43 NTSC3.58
Sound system (SOU) initial data : 3
BG 0 1 2 3 4 O O O O O O O O I DK M
Sound default (S-D) initial data : 3
0=B/G, 1= I, 2=D/K, 3=M
Lock (LOC) initial data : 1
0= Off (TV lock, Child lock, Panel lock), 1= On
Multi-language OSD (LAN) initial data :4
LAN 0 1 2 3 4 5 Language English Chinese English Spanish - Portuguese English Spanish - French English Spanish - Portuguese- French English Chinese
Auto Off (AOFF) Initial data : 2
If signal is not exist for 30 minutes TV will turn off the power automatically
0=Disabled, 1=TV, 2= TV&VIDEO
CATV MODE (CATV) Initial data : 0
0=AIR/CATV, 1=AIR/STD/HRC/IRC
AMP MUTE (MUTE) Initial data : 0
0= When execute Power, Mute 1= When execute Power, Mute, Channel, TV/AV
Automatic Fine Tuning (AFT) Initial data : 0
0= Execute AFT one time when channel changed 1= Execute AFT continually if out of AFT range
CAPTION MENU (CAP) Initial data : 1
0= Not available 1= Available
ANTENNA INPUT (ANT) Initial data : 1
It determine default CATV mode after factory shipping
0= AIR, 1= CATV
MTS (MTS) Initial data : 1
MTS 0 1 Description MONO UPC1851 STEREO
2
0=Disabled, 1=Activated
TDA7439 LINE STEREO
Scan Velocity Modulation (SVM) Initial data : 0 PIP (PIP) Initial data : 1
0=Disabled, 1=SDA948x, 2=SDA938x
Input Source = TV, AV1, AV2, S-VHS
Tilt Control (TILT) Initial data : 0
0=Disabled, 1=Activated
Clock Display (CLK) Initial data : 0
0=12 Hour, 1=24 Hour
2-3. FACTORY SHIPPING MODE
The shipping mode is used during factory inspection. This mode should be activated before packing a set for dispatch. In this mode following functions will be performed. i) ii) iii) iv) v) vi) vii) viii) ix) x) xi) xii) xiii) Manufacturing mode will be made off Blue back ground will be made on Child lock status for all channels will be cleared. Skip status for all channels will be cleared. Volume level for all channels will be set to 15. Selectable picture will be set to "Normal" Video system will be set to "Auto" Panel lock, TV lock will be made off. Timer data in time menu will be cleared. sharp, tint, FCC & balance controls will be set to center. Volume fix will be made off. Plug and Play will be set to on. The chassis will be re-powered on by the s/w reset
Shipping time should be less than 2 seconds.
2-4. MANUFACTURING MODE
This mode will be accessed by pressing a service key followed by number key 4. In manufacturing mode i) All controls will be varied with the steps of four except Service and Design mode.
ii) iii) iv) v)
Auto shut off feature will be disabled. Blue back will not appear even if it is made on in install menu. Set will always go in st-by on mode when switched on from mains. "M" will be displayed in bottom left corner on the blank screen.
2-5. TEST PATTERN
This mode has 7 kinds of built-in video pattern for TV screen adjustment ; White on the whole screen, Red on the whole screen, Cross-hatch, Cross-dot, Cross-bar, White on the upper side/ Black on the lower side, H-signal.
2-6. HEAT RUN Mode
This mode is used for pre-heating the CRT during manufacturing --it is accessed in the factory by pressing the "SERVICE 6" key, then white pattern will be displayed. Even if the TV power is cut off, the HEAT RUN Mode is not canceled , The HEAT RUN mode is cancelled by repressing the "SERVICE" key.
3. Other Adjustments
.
3-1 High Voltage Check
CAUTION: There is no high voltage adjustment on this chassis. The B+ power supply must be set to +130 volts (Full color bar input and normal picture level).
1. Connect a digital voltmeter to the second anode of the picture tube. 2. Turn on the TV. Set the Brightness and Contrast controls to minimum (zero beam current). 3. The high voltage should not exceed 29KV. 4. Adjust the Brightness and contrast controls to both extremes. Ensure that the high voltage does not exceed 29KV under any conditions.
3-2 FOCUS Adjustment
1. Input a black and white signal. 2. Adjust the tuning control for the clearest picture. 3. Adjust the FOCUS control for well-defined scanning lines in the center area of the screen.
3-3 Cathode Voltage Adjustment (Screen Adjustment)
1. Access Service mode by pressing "1" keys in Factory menu. 2. Select "VSD" by pressing the CHANNEL keys(), and set "VSD" to "1" by pressing Volume.
3. Make white colored line by adjusting "RDC', "GDC", "BDC" as follows; Cut-off RED GREEN BLUE Key "1" "4" "7" Action RED (-) GREEN (-) BLUE (-) Key "2" "5" "8" Action RED (+) GREEN (+) BLUE (+)
4. Adjust the Screen VR (on the FBT) so that horizontal line is just seen a little. 5. Set "VSD" to "0" by pressing Volume key.
3-4 Purity Adjustment
1. Warm up the receiver for at least 20 minutes. 2. Plug in the CRT deflection yoke and tighten the clamp screw. 3. Plug the convergence yoke into the CRT and set. 4. Input a black and white signal. 5. Fully demagnetize the receiver by applying an external degaussing coil. 6. Turn the CONTRAST and BRIGHTNESS controls to maximum. 7. Loosen the clamp screw holding the yoke. Slide the yoke backward or forward to provide vertical green belt. 8. Tighten the convergence yoke. 9. Slowly move the deflection yoke forward, and adjust for the best overall green screen. 10. Temporarily tighten the deflection yoke. 11. Produce blue and red rasters by adjusting the low-light controls. Check for good purity in each field. 12. Tighten the deflection yoke.
3-5 White Balance Adjustment
(a) Set up 1. Warm up the TV for at least 20 minutes in the HEAT RUN Mode (OSD White). This mode is displayed by entering the following sequence: SERVICE 2. Input a Toshiba pattern. (b) Low-Light Adjustment 1. Set SBRT to 1.2 ± 0.2 fL in the Service Mode with using CA100. 2. Adjust RDC, GDC and BDC so that the levels are suitable to each local area. (c) High-Light Adjustment 1. Set SCON to 50 ± 5 fL (29" NORMAL), 53 ± 5 fL(29" FLAT) in the Service Mode with using CA100. 2. Adjust GDRV and BDRV so that the levels are suitable to each local area. 5
3-6 Center Convergence Adjustment
1. Warm up the receiver for at least 20 minutes. 2. Adjust the two tabs of the 4 pole magnets to change the angle between them. Superimpose the red and blue vertical lines in the center area of the screen. 3. Adjust the Brightness and Contrast controls for a well-defined picture. 4. Adjust the two-tab pairs of the 4 pole magnets, and change the angle between them. Superimpose the red and the blue vertical lines in the center area of the screen. 5. Turn the both tabs at the same time, keeping the angle constant, and superimpose the red and blue horizontal line in the center of the screen. 6. Adjust the two-tab pairs of the 6-pole magnets to superimpose the red and blue line onto the green. (Changing the angle affects the vertical lines, and rotating both magnets affects the horizontal lines.) 7. Repeat adjustments 2~6, if necessary. 8. Since the 4-pole magnets and 6-pole magnets interact, the dot movement is complex .
3-7 RF AGC Adjustment
Set the AGC data to 25 (Adjust Mode).
3-8 Sub-Color Adjustment
Set SCOL data to 8 (Service Mode).
3-9 Geometry Adjustment
SC VA Z-PAR VSH Z-TRA VL HSH HSI Z-EWB HEH VCE VEH W-TRA PAR TRA EWT EWB Z-EWT W -PAR W-EWT W-EWB
1. Input a lion head pattern (in the PAL channel). 2. Set the SC (S-Correction) so that the lion head circle becomes oval. 3. Adjust with VSH (Vertical shift) and VCE(Vertical Centering) so that the top margin of the picture is 4. 4. Adjust with VA (Vertical-Amplify) so that the bottom margin of the picture is 4. 5. Adjust with HSH (Horizontal Shift) so that the lion-head pattern and CRT centers are aligned. 6. Adjust. with HSI(Horizontal Size) so that the left and right margins of the picture are 5.
4 5
5 4
(Picture 5)
7. Input a crosshatch pattern 8. Adjust with PAR, TRA, PET, PEB, HEH, VEH, Z-PAR, Z-TRA, Z-EWT, Z-EWB, W PAR, W-TRA, W-EWT, W-EWB for vertical linearity
FACTORY ADJUSTMENT
POWER VSD
RDC
1
AGC
2
HRS
3
GDC
4
SBRT
5
VRS
6
BDC
7
8
VA
9 Q.V
GDRV
+100 ADD/DEL
SC
0 CCD
HSI SLEEP VOLUME MAX TEST TV/AV FACTORY SHIPPING
BDRV
PAR
MENU :HEAT RUN ON/OFF
MENU
EXIT FACTORY DISPLAY
FACTORY
MTS LOCATE SWAP
PIP