Erisson 2515, 25F2, 29F2, 3410 Schematics

I. Safety Instructions
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER-SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL ONL Y.
PRECAUTIONS DURING SERVICING
1. In addition to safety, other parts and assemblies are specified for conformance with such regulations as those applying to spurious radiation. These must also be replaced only with specified replacements. Examples: RF converters, tuner units, antenna selection switches, RF cables, noise-blocking capacitors, noise-blocking filters, etc.
2. Use specified internal Wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
3. Use specified insulating materials for hazardous live parts. Note especially:
1) Insulating Tape
2) PVC tubing
3) Spacers (insulating barriers)
4) Insulating sheets for transistors
5) Plastic screws for fixing micro switches
4. When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.), wrap ends of wires securely about the terminals before soldering.
5. Make sure that wires do not contact heat generating parts (heat sinks, oxide metal film resistors, fusible resistors, etc.)
6. Check if replaced wires do not contact sharply edged or pointed parts.
7. Make sure that foreign objects (screws, solder droplets, etc.) do not remain inside the set.
MAKE YOUR CONTRIBUTION TO PROTECT THE ENVIRONMENT
Used batteries with the ISO symbol for recycling as well as small accumulators (rechargeable batteries), mini-batteries (cells) and starter batteries should not be thrown into the garbage can. Please leave them at an appropriate depot.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and mainte­nance (servicing) instructions in the literature ac­companying the appliance.
WARNING:
Before servicing this TV receiver, read the X-RAY RADIATION PRECAUTION, SAFETY INSTRUCTION and PRODUCT SAFETY NOTICE.
X-RAY RADIATION PRECAUTION
1. Excessively high can produce potentially hazardous X-RAY RADIATION. To avoid such hazards, the high voltage must not exceed the specified limit. The normal value of the high voltage of this TV receiver is 27 KV at zero bean current (minimum brightness). The high voltage must not exceed 30 KV under any circumstances. Each time when a receiver requires servicing, the high voltage should be checked. The reading of the high voltage is recommended to be recorded as a part of the service record, It is important to use an accurate and reliable high voltage meter.
2. The only source of X-RAY RADIATION in this TV receiver is the picture tube. For continued X-RAY RADIATION protection, the replacement tube must be exactly the same type as specified in the parts list.
3. Some parts in this TV receiver have special safety related characteristics for X-RADIATION protection. For continued safety, the parts replacement should be under taken only after referring the PRODUCT
SAFETY NOTICE.
SAFETY INSTRUCTION
The service should not be attempted by anyone
unfamiliar with the necessary instructions on this TV receiver. The following are the necessary instructions to be observed before servicing.
1. An isolation transformer should be connected in the
power line between the receiver and the AC line when a service is performed on the primary of the converter transformer of the set.
2. Comply with all caution and safety related provided
on the back of the cabinet, inside the cabinet, on the chassis or picture tube.
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3. To avoid a shock hazard, always discharge the picture tube's anode to the chassis ground before removing the anode cap.
4. Completely discharge the high potential voltage of the picture tube before handling. The picture tube is a vacuum and if broken, the glass will explode.
5. When replacing a MAIN PCB in the cabinet, always be certain that all protective are installed properly such as control knobs, adjustment covers or shields, barriers, isolation resistor networks etc.
6. When servicing is required, observe the original lead dressing. Extra precaution should be given to assure correct lead dressing in the high voltage area.
7. Keep wires away from high voltage or high tempera ture components.
8. Before returning the set to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, screwheads, metal overlay, control shafts, etc., to be sure the set is safe to operate without danger of electrical shock. Plug the AC line cord directly to the AC outlet (do not use a line isolation transformer during this check). Use an AC voltmeter having 5K ohms volt sensitivity or more in the following manner. Connect a 1.5K ohm 10 watt resistor paralleled by a
0.15µF AC type capacitor, between a good earth ground (water pipe, conductor etc.,) and the exposed metallic parts, one at a time. Measure the AC voltage across the combination of the 1.5K ohm resistor and 0.15 uF capacitor. Reverse the AC plug at the AC outlet and repeat the AC voltage measurements for each exposed metallic part. The measured voltage must not exceed 0.3V RMS. This corresponds to 0.5mA AC. Any value exceeding this limit constitutes a potential shock hazard and must be corrected immediately. The resistance measurement should be done between accessible exposed metal parts and power cord plug prongs with the power switch "ON". The resistance should be more than 6M ohms.
PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in this TV receiver have special safety-related characteristics. These characteristics are offer passed unnoticed by visual spection and the protection afforded by them cannot necessarily be obtained by using replacement components rates for a higher voltage, wattage, etc. The replacement parts which have these special safety characteristics are identified by the schematic diagram and on the parts list. Before replacing any of these components, read the parts list in this manual carefully. The use of substitute replacement parts which do not have the same safety characteristics as specified in the parts list may create shock, fire, X-RAY RADIATION or other hazards.
marks on
Good earth ground such as the water pipe, conductor, etc.
AC Leakage Current Check
AC VOLTMETER
Place this probe on each ex­posed metallic part
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II. Specifications
1.Power supply TV: AC 220Vrms, 50Hz
Remote control battery: 3V (UM-3X2)
2. TV system RF input : PAL BG/DK, SECAM BG/DK
Video input: PAL/SECAM/NTSC 3.58/NTSC 4.43
3.Receiving channels VHF-L : E2-S10
VHF-H : E5-S41 UHF : E21-E69
4.Intermediate frequencies Picture: 38.9MHz
5.Scanning Horizontal (Hz): 15625/15750
Vertical (Hz) : 50/60
6.Color picture tube: 25” 29” 34” 110 degree north(1) hemisphere Bv=+0.35G±0.2G
7.Operating temperature Fulfil all specifications: 15°C ~ 35°C
Accept picture/tone reproduction: 5°C ~ 45°C
8.Operating relative humidity Fulfil all specifications: 45% ~ 75%
Accept picture/tone reproduction: 15% ~ 90%
9.Electrical & Optical Specification:
No. Items Instruction Typical Limit Unit
1 Video sensitivity For 30dB S/N 45 ≤51 dBuV 2 FM sound sensitivity For 30dB S/N 28 ≤35 dBuV 3 Synchronizing sensitivity For RF transmission 25 ≤30 dBuV 4 Color sensitivity For RF transmission 32 ≤40 dBuV 5 Teletext sensitivity TV screen refreshes 40 times
number of mistakes ≤8 N/A N/A dBu 6 Minimum NICAM threshold Without crackline noise N/ A N/A dBu 7 AGC static characteristic Accept. Picture/tone repr. 103 ≥100 dBu 8 Selectivity Adjacent sound carrier 40 ≥35
Below adjacent sound carrier 35 ≥30 dB
Adjacent picture carrier 50 ≥40
Up adjacent picture carrier 45 ≥30 9 IF rejection 55 ≥50 dB 10 Image rejection VHF 55 ≥50 dB
UHF 50 45 11 AFT pull-in range M/N N/A N/A MHz
DK/I/BG ±1.5 ≥|±1.0| 12 Chroma sync pull-in range ±500 |±200| Hz 13 Color killer function -25 ≤-16 dB 14 DC restoration 3 ≤10 % 15 Resolution Horizontal PAL/SECAM 320 300
NTSC 270 250
Vertical PAL/SECAM 410 400 lines
NTSC 320 300 16 Overscan Cross hatch signal 93 90~96 % 17 Linearity Horizontal 7 10 %
Vertical 6 8% 18 Pattern distortion 1.5 ≤3% 19 Picture position In all direction ±3 ≤|±6| mm 20 Raster rotation In all direction 4 ≤6mm 21 Convergence error 0.4 ≤0.6 % 22 White balance (8700°K) X 0.288 0.288±0.015
Y 0.298 0.298±0.015 / 23 Maximum full white At picture tube center 80 ≥60 cd/m
90 ≥80 cd/m 24 H sync pull-in range ±500 |±200| Hz 25 V sync pull-in range 7 ≥6Hz 26 Anode voltage 29 32.5 KV For 29” 34”
27.5 30 KV For 25” 27 Audio frequence response ±3dB ref. to 1KHz 0.2~10 0.2~10 KHz 28 Audio output power 1KHz 10% THD 2x7.5 2x7.5 W For 34”
50KHz DEV. (BG/I/DK) 2x5 2x5 W For 25” 29” 25KHz DEV. (M/N)
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For 29” 34”
2
For 25”
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No. Items Instruction Typical Limit Unit
29 THD Po=0.5W 1KHz 1 ≤3% 30 Signal to buzz ratio 42 ≥40 dB 31 Minimum volume hum 6 ≤10 mVrms 32 Maximum woofer output power N/A N/A W 33 Woofer audio freqency response ±3dB ref. to 80Hz AV mode N/A N/A Hz 34 Bass control range 100Hz ref. to 1KHz AV mode N/A N/A dB 35 Treble control range 10KHz ref. to 1KHz AV mode N/A N/A dB 36 Balance Center N/A N/A
Max. N/A N/A dB
Min. N/A N/A 37 Volume control curve Kawa A / 38 Video input level 1.0 1±0.2 Vpp 39 Audio input level 0.5 0.5±0.3 Vrms 40 Video output level 1.0 1±0.2 Vpp 41 Audio output level 0.5 0.5±0.3 Vrms 42 Power consumpution Operating 180 200 W For 34”
110 150 W For 25” 120 160 W For 29”
Stand by 10 ≤15 W 43 IR receiving distance ±30° 6 ≥4m 44 X-ray radiation <0.1 ≤0.5 mR/h 45 Dielectric strength AC 3KVrms 2 sec. 3 ≤5 mArms
Test Condition
1 Picture Modulation 87.5% 2 Sound Modulation 27KHz Dev. For DK/I/BG
15KHz Dev. For M/N 3 Picture to Sound Ration 10dB 4 Sound Artificial Load Resistor 8 ohm 5 Video signal White and black
(three white & two black) 6 Audio signal 1KHz sine wave 0.5Wrms
7 Conditions of the TV setting:screen
A. Switch TV on and let it warm up for more than 30 minutes. B. Connect RMS volt meter to speaker terminals and adjust theTV volume to get 500mW RMS power at each terminal. C. Place the MINOLTA CA-100 test probe to white part of the screen,adjust the contrast until a reading of 80cd/m
is obtained.
D. Place the MINOLTA CA-100 test probe to black part of the screen,adjust the brightness until a reading of 2cd/m
is obtained.
E. Repeat step C & D until the exact luminance values is obtained or the nearest possible values you can get.then
record the luminance values & R.G.B gun voltage values at the same time. and take the largest values for measurement referenct.
F. Input standard color bar(100/0/75/0),then adjust the colour.until the waveforms at the blue gun of same level
is obtained.
+P8 P5+
+P1
1/9H
+P4 P2++P0
+P7 P6+
+P3
H
1/9W
W
Convergence error test point on
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2
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III. Level List of Equipments & Instruments Required for Production
No. Designation Requirement Reference Model Remark
1 Pattern Generator System of output signal: PHILIPS
RF out: PAL BG/SUB/DK/I, PM5518-TN SECAM B/G/D/K, NTSC M PM5418-TN
Video out: NTSC 4.43/3.58 PAL 60Hz 2 Digital voltmeter Input Resistance 10M FLUKE 45 3 Withstanding Withstanding Voltage: KIKUSUI TOS 8650 Irresistible Voltage Measure
Voltage Tester AC 1.5KV, 5KV/0-5KV ± 3%
Cut-off current: AC 0-2mA,
20mA / continuously Adjustable 4 Insulation Tester Test voltage:1000V. 500V KIKUSUI TOS 7100L 5 Sine wave Signal Frequency Range: 0.1~140MHz LEADER 3216 For generating IF Signal
Generator ( Precision:10KHz )
Level Range: -20~126dB 6 Oscilloscope Frequency response: 20MHz or above 7 CRT Color MINOLTA CA-100 For White Balance Adjustment
Analyzer
8 DC Regulated Max output Voltage
Power Supply
9 Color Monitor AV receiving system: Should include Same model (of TV set) For operation check
all the AV output system of the as the products For resolution check
products at least. For Skew Check 10 Audio Signal Frequency of output signal: KENWOOD AG-203A For generating audio signal
Generator 20Hz-20kHz
14V Supply DC power
IV. Applying Adhesive on Main PCB
Note: The ref. No. from 1 to 10 should be applied one Diabond 1603HFR Ivony Adhesive for each.
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V. Wiring Diagram
A. For model 34E2ABN88
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B. For models 25A9/29A9ABN88
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C. For model 25B8ABN88
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D. For model 29B8ABN88
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VI. Block Diagram
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VII. Disassembly
In case of trouble, etc., necessitating disassemble, please disassemble in the order shown in the illustrations. Reas­semble in the reverse order.
1. Removal of the Back Cover
2. Removal of the MAIN PCB
a. Remove the screws. b. Slide out the TV chassis slightly; pull up the connector of AC cord from PCB; pull up the CRT PCB from
CRT.
c. Remove the anode cap from the picture tube. To avaid a shock hazard, be sure to discharge the picture
tube’s anode to the chassis ground before removal.
d. Take out the TV chassis.
VIII. Input Signals & Equipments List for Alignment
A. Equipments List
1. Pattern Generator 2. Digital Voltmeter 3. High Voltage Meter
4. Sine Wave Signal Generator 5. Demagnetizer 6. Personal Computer (486)
7. DC Regulated Power Supply 8. Oscilloscope 9. CRT Colour Analyzer
B. Input Signals
1. Philips Pattern 2. Color Bar 3. Cross Hatch
4. Grey Scale Bar 5. Monoscope Pattern 6. Moving Picture With Sound
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IX. E2PROM (IC602) Setting
A. Option Code
The option code listed below is for selection of different TV systems, features and functions, the code is preset in
factory, in case of changing the EEPROM, the option code will not be the same as before. In this case, it is necessary to adjust the option code again. How to set the option code by hand is described in “method to enter into SERVICE MENU and ADJUST MENU”. Please refer to “IV. Electrical Adjustment”.
Model Option code
25B8/29B8/34E2ABN88 7063123784 25A9/29A9ABN88 5063123784
The “option setup” is shown as following:
There are 5 bytes in EEPROM, and each of the bits stands for an option function, the option bits listed below:
OPTION SET
KWTVD OTHER XX-XX PRODUCTION OFF OPTION 0123456789 READ 5198 CNT: 11
BIT7 BIT6 BIT5 BIT4 BIT3 BIT2 BIT1 BIT0 BYTE1 OCHA OQSS OSVD OAV2 NU OCHIL OWOO OUHF BYTE2 NU OSYS1 OSYS2 OSYS3 NU OTUN1 OTUN2 OTUN3 BYTE3 NU OBL OSND1 OSNDB N U OSNDI OSNDD OSNDM BYTE4 NU NU OBB OTVO NU OCHIT OCHIS OENG BYTE5 ODKSIF OMSIF OBGSIF OISIF SRS TONE NICAM TEXT
DIGIT 1:
1 OCHA 0 = 256 CHANNELS 1 = 101 CHANNELS 2 OQSS 0 = QSS OFF 1 = QSS ON 3/4 MODE OSVD OA V2
TV/AV 0 0 TV/AV1/AV2 0 1 TV/AV1/AV2/SVD 1 1
Digit 2:
5 NULL 6 OCHIL 0 = CHILD LOCK NOT AVAILABLE
1 = CHILD LOCK AVAILABLE
7 OWOO 0 = WOOFER NOT AVAILABLE
1 = WOOFER AVAILABLE
8 OUHF 0 = ALL BAND ( VL, VH, UHF )
1 = UHF ONLY
Digit 3:
9 NULL 10 OSYS1 0 = SINGLE COLOR SYSTEM (PAL) AVAILABLE
1 = MULTI COLOR SYSTEM(AUTO/PAL)AVAILABLE
11 OSYS2 0 = MULTI SYSTEM SECAM NOT AVAILABLE (TV & AV)
1 = MULTI SYSTEM SECAM AVAILABLE (TV & AV)
12 OSYS3 0 = MULTI SYSTEM NTSC NOT AVAILABLE (TV)
1 = MULTI SYSTEM NTSC AVAILABLE (TV)
Digit 4:
13 NULL 14/15/16 TUNER IF SETUP OTUN1 OTUN2 OTUN3
34.47 MHz 0 0 0
36.875 MHz 0 0 1 38 MHz 0 1 0
38.9 MHz 0 1 1
39.5 MHz 1 0 0
45.75 MHz 1 0 1
Digit 5
17 NULL 18 OBL 0 = BILINGUAL (MAIN/SUB) NOT AVAILABLE
1 = BILINGUAL (MAIN/SUB) AVAILABLE
19 OSND1 0 = MULTI SIF SYSTEM AVAILABLE
1 = SINGLE SIF SYSTEM AVAILABLE — THIS OPTION IS NOT COUNT BILINGUAL
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20 OSNDB 0 = SIF [BG] NOT AVAILABLE
1 = SIF [BG] AVAILABLE
Digit 6:
21 NULL 22 OSNDI 0 = SIF [I] NOT AVAILABLE
1 = SIF [I] AVAILABLE
23 OSNDD 0 = SIF [DK] NOT AVAILABLE
1 = SIF [DK] AVAILABLE
24 OSNDM 0 = SIF [M] NOT AVAILABLE
1 = SIF [M] AVAILABLE
Digit 7:
25 NULL 26 NULL 27 OBB 0 = BLUE BACK NOT AVAILABLE
1 = BLUE BACK AVAILABLE
28 OTVO 0 = SCART MONITOR OUTPUT
1 = SCART TV OUTPUT
Digit 8:
29 NUL 30 OCHIT 0 = RUSSIA OSD NOT AVAILABLE
1 = RUSSIA OSD AVAILABLE
31 OCHIS 0 = SIMPLE CHINESE (CHINA) OSD NOT AVAILABLE
1 = SIMPLE CHINESE (CHINA) OSD AVAILABLE
32 OENG 0 = ENGLISH OSD NOT AVAILABLE
1 = ENGLISH OSD AVAILABLE
Digit 9:
33 ODKSIF 0 = DK SIF INTERNAL
1 = DK SIF EXTERNAL
34 OMSIF 0 = M SIF INTERNAL
1 = M SIF EXTERNAL
35 OBGSIF 0 = B G SIF INTERNAL
1 = BG SIF EXTERNAL
36 OISIF 0 = I SIF INTERNAL
1 = I SIF EXTERNAL
Digit 10:
37 SRS 0 = SRS NOT AVAILABLE
1 = SRS AVAILABLE
38 TONE 0 = TONE NOT AVAILABLE
1 = TONE AVAILABLE
39 NICAM 0 = NICAM NOT AVAILABLE
1 = NICAM AVAILABLE
40 TEXT 0 = TELETEXT NOT AVAILABLE
1 = TELETEXT AVAILABLE
B. Data Setting
The data setting item B~D is the initialization data preset in the EEPROM before adjustment in case of changing the EEPROM, please set the data to initialization data listed below before adjustment. How to set the data by hand is described in “method to enter into SERVICE MENU and ADJUST MENU”. Please refer to “IV. Electrical Adjustment”.
Parameter Value(DEC) Remark Parameter Value(DEC) Remark
SUB BRI 63 HOR.POS60 13 CUTOFF R 63 VER.POS60 0 CUTOFF G 63 VER.H60 81 CUTOFF B 63 VER.LIN60 40 Remark1 DRIVE R 63 VER.S C60 20 Remark1 DRIVE B 63 SUBTINT 16 AFT ADJ 55 AV S TINT 16 RFAGCDP 45 C-Y 1 Remark4 SECAM BL 0 HOR.VCO 52 RGB LIMIT 0 VIF.VCO 26 HOR.POS 18 ISUD5 0 Remark2 VER.POS 0 Remark3 ISUD4 1 VER.HEI 84 ISUD3 1 VER.LIN 40 Remark1 CONTR 32 0 VER.S CUR 20 Remark1 SWMODE 0,1 Remark5
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Remark1: For different CRT, the following data are recommended to change for better performance before
alignment. These Data Settings are listed as following:
CRT CRT Type No. Value
VER.LIN VER.SCUR VER.LIN60 VER.SC60 34” E6101-082005 A80LJF60X10(C) N1 40 22 40 22 SEG
Remark2: ISUD5 must set to “0”. Please check ISUD5 after read 5198. If ISUD5 is “1”, please set to “0”. Remark3: PAL or NTSC VER.POS only can select 0 or 1. Remark4: C-Y:0 For MS models(using NN5198K) C-Y:1 For other models(using NN5199K or NN5099K) Remark5:
MODEL SWMODE 25A9/29A9/25B8/29B8/34E2ABN88 0
C. Intelligent picture control (I.P.C) DATA SETTING
Control Value
Natural Sharp Cinema Personal
Brightness 16 24 12 16 Contrast 24 32 16 24 Colour 16 20 16 16 Sharpness 16 24 16 16
D. AFT Data Setting
Description Value
VHFL VHFH UHF
Low 120 56 35 Middle 97 40 31 High 131 76 60
Remark: This table of AFT DATA setting is only for:
SAMSUNG tuner: TECC0949VG28B, TECC7949VG28B and WITTIS tuner: UVS1051-CW1/UVS1051-NEW.
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X. Electrical Adjustment
A. Chassis Adjustment i. +B Voltage Alignment
a. Preparation Procedure
1).Receive standard colour bar signal.
2).Press key "I.P.C." to select “Natural” mode.
3).Connect digital voltmeter between
4).+B voltage.
Model CRT CRT Type No. +B
34E2ABN88 E6101-082005 A80LJF60X10(C) N1 132V 25A9ABN88 E6101-059006 A59KYL220X08B USA LG 130V 29A9ABN88 E6101-114001 A68KYN690X55M N1 LG 135V 25B8ABN88 E6120-008001 A59QDC257X030 N1 LG 135V 29B8ABN88 E6120-006001 A68QCU259X530 N1 130V
Note: Please refer to the CRT conversion table for other CRT.
b. Adjustment Step
Adjust VR901 (or VR902) to make the read-out on the Voltmeter to be +B±0.3V.
ii. Method to enter into SERVICE MENU and ADJUST MENU
a. Turn on the Main Power Switch, then press volume buttons both "+" and "-" simultaneously for over 5 seconds,
the "KWTVxx SERVICE" will be displayed on the screen.Press “MENU” key (on the unit or the remote control) to select “SERVICE” , “AFT-SET” , “IPC SET” or “OTHER” MENU.
b. The “KWTVxx SERVICE” menu is indicated with each item on the
screen. The item can be selected by pressing channel “ keys.Press volume “+” and “-” keys to change the parameter value.
c. AFT-Step
Selecting “AFT-SET” to set AFT DATA, on-screen display will be shown as:
KWTVxx AFT-STEP x-xx Band VHFL Low 120 Middle 97 High 131
of C403 and GND.
KWTVxx SERVICE x-xx
” and “ ”
AFT 80 HVCO 59 AGC 50 TINT 16 IFVCO 40 AVTINT 16
Use channel “ ” and “ ” keys to select the parameter, the parameter value can be changed by pressing volume “+” and “-” keys. See “AFT data setting”. Press “MENU” key to exit.
d. IPC
Press “MENU” key to selecting “IPC-SET” to set picture mode data, the picture mode data is indicated with each parameter on the screen. On-screen display will be shown as:
KWTVxx IPC-SET x-xx MODE Personal Bright 16 Contrast 16 Colour 16 Sharp 16
Press volume “+” and ”-” keys to select picture mode, then select the parameter and change the parameter value. When all picture mode data is being set, press “MENU” key to exit.
e. Press “MENU” key,select “Other”,on-screen display will be shown as following:
KWTVxx OTHER x-xx Production on Option xxxxxxxxxx Read 5198 CNT: x
1). Production The function of ”Production” is for production aging purpose. When no RF signal input and if it is set to “on”, the TV set will not be blue back and standby shortly. When the TV set is finished, it must be set to “off”. If it is set to “on”, a character “P” will appear on the top of the screen when changing channel, this means that it is set for production purpose. By pressing the volume “+” and “-” keys, “Production” can be set to “off” or “on”. By pressing the “MENU” ,it will exit the “OTHER” menu.
2) Option Selecting “Option”, input the option code by number keys on the remote handset according to the “Option code”.Then pess “MENU” to store. After changing “OPTION”, the TV set must be set to standby and power on again, then enter into “SERVICE MENU”.
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