Sharp 14a2s Owners Manual
Have a look at the manual Sharp 14a2s Owners Manual online for free. It’s possible to download the document as PDF or print. UserManuals.tech offer 615 Sharp manuals and user’s guides for free. Share the user manual or guide on Facebook, Twitter or Google+.
114A1-RU 14A2-RU 1-2 1-1 SERVICE MANUAL (14A1-RU) (14A2-RU) COLOUR TELEVISION Chassis No. UA-1 In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used. 14A1-RU 14A2-RU MODELS SHARP CORPORATION WARNING The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user Ð serviceable parts inside. Refer servicing to qualified service personnel. CONTENTS ÈSPECIFICATIONS .............................. 2 ÈIMPORTANT SERVICE NOTES ......... 2 ÈADJUSTMENT PRECAUTIONS ......... 3 ÈTROUBLE SHOOTING TABLE ......... 19 ÈHOTEL MODE APPLICATION .......... 21 ÈSOLID STATE DEVICE BASE DIAGRAM ......................................... 22 ÈWAVEFORMS ................................... 23 ÈCHASSIS LAYOUT ........................... 24 ÈDESCRIPTION OF SCHEMATIC DIA- GRAM ............................................... 26ÈSCHEMATIC DIAGRAM nCRT Unit ....................................... 27 nMAIN Unit ..................................... 28 ÈBLOCK DIAGRAM ............................ 32 ÈPRINTED WIRING BOARD ASSEM- BLIES ................................................ 37 ÈREPLACEMENT PARTS LIST nELECTRICAL PARTS ................... 42 nMISCELLANEOUS PARTS ........... 46 nSUPPLIED ACCESSORIES ......... 46 nPACKING PARTS ......................... 46 nCABINET PARTS .......................... 46 Page PageFEATURE è Multi 18 Systems è Full Auto Channel Preset and Auto Channel Skip è 100-CH Program Memory è High Contrast Picture è Black Stretch Circuit è CATV (Hyper Band) Ready < Used Frequency Synthesizer Tuner>è AVL (Sound Keeper) Function è Hotel Mode è On Timer / Sleep Timer / Reminder Timer è Colour Comb Filter Function (NTSC only) è Blue Back Noise Mute è Rear AV-In/Out Terminals and Front AV-In è English and Russian OSD SX0M114A1-RU/
2 14A1-RU 14A2-RU 2-2 2-1 IMPORTANT SERVICE NOTES Maintenance and repair of this receiver should be done by qualified service personnel only.SERVICE OF HIGH VOLTAGE SYSTEM AND PIC- TURE TUBEWhen servicing the high voltage system, remove static charge from it by connecting a 10K ohm Resistor in series with an insulated wire(such as a test probe) between picture tube dag and 2nd anode lead. (AC line cord should be disconnected from AC outlet.)1. Picture tube in this receiver employs integral implosion protection. 2. Replace with tube of the same type number for continued safety. 3. Do not lift picture tube by the neck. 4. Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage completely.X-RAYThis receiver is designed so that any X-Ray radiation is kept to an absolute Minimum. Since certain malfunctions or servicing may produce potentially hazardous radiation with prolonged exposure at close range, the followin precautions should be observed:1. When repairing the circuit, be sure not to increase the high voltage to more than 23.5kV(at beam 0.1 mA) for the set. 2. To keep the set in a normal opeartion , be sure to make it function on 22.0kV ±1.5kV(at beam 800 mA) in the case of the set. The set has been factory - Adjusted to the above- mentioned high voltage. * If there is a possibility that the high voltage fluctuates as a result of the repairs, never forget to check for such high voltage after the work. 3. Do not substitute a picture tube with unauthorizerd types and/or brands which may cause excess X-ray radiation. BEFORE RETURNING THE RECEIVERBefore returning the receiver to the user, perform the following safety Checks.1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the receiver. 2. Inspect all protective devices such as non-metallic control knobs, insulating fishpapers, cabinet backs, adjustment and compartment covers or shields, isolation resistor- ca- pacity networks, mechanical insulators etc. SPECIFICATIONS Convergence ................................................................. Self Convergence System Focus ............................................................ Electrostatic Focus High Bi-Potential Sweep Deflection ..................................................................................... Magnetic Intermediate Frequencies Picture IF Carrier .................................................................................. 38.9MHz Sound IF Carrier Frequency 5.5MHz ............................................................................................. 33.4MHz 6.0MHz ............................................................................................ .32.9MHz 6.5MHz ............................................................................................. 32.4MHz Colour Sub-Carrier Frequency ........................................................... 34.47MHz Power Input ..................................................................... 110 ~ 240V AC 50/60 Hz Power Consumption 14A1-RU .................................................................................................. 65W 14A2-RU .................................................................................................. 68W Audio Power Output Rating 14A1-RU ......................................................................................... 3.0W (at Max.) 14A2-RU ......................................................................................... 5.0W (at Max.) Speaker Size 14A1-RU ....................................................................... 5 x 9 cm Elliptic (1 pc) 14A2-RU .................................................................... 5 x 9 cm Elliptic (2 pcs.) Voice Coil Impedance ........................................................... 16 ohms at 400 Hz Aerial Input Impedance VHF/UHF .......................................................................... 75 ohms Unbalanced Receiving System ..................................................... PAL B/G, D/K, I / SECAM NTSC 3.58/4.43 MHz (AV) Tuner Ranges ¥ VHF-Channels ..................................... E1 (48.25MHz) thru E12 (224.25MHz) C1 (49.75MHz) thru C12 (216.25MHz) S1 (105.25MHz) thru S41 (463.25MHz) ¥ UHF-Channels ................................. E21 (471.25MHz) thru E69 (855.25MHz) C13 (471.25MHz) thru C57 (863.25MHz) Dimensions 14A1-RU ................................................................................... Width: 357.0mm Height: 361.0mm Depth: 368.7mm Weight (approx.): 9.2 kg 14A2-RU ................................................................................... Width: 446.0mm Height: 333.0mm Depth: 365.0mm Weight (approx.): 9.4 kg Cabinet Material .................................................................................... All Plastics Specifications are subject to change without prior notice.
314A1-RU 14A2-RU 3-2 3-1 ADJUSTMENT PRECAUTIONS This models setting are adjusted in two different ways: through the I 2C bus control and in the conventional analog manner. The adjustments via the I 2C bus control include preset-only items and variable data. 1. Setting the service mode by the microprocessor. 1. Short JA 122 & JA 124 for 1 second and release to switch to the service mode position, and the microprocessor is in input mode. (Adjustment through the I 2C bus control). (Use JWS Key to set as well). 2. Press the CH DOWN / UP key on the remote controller to get ready to select the mode one by one. 3. Press the CH DOWN / UP key on the remote controller to select the modes reversibly one by one. 4. Using the VOLUME UP/ DOWN key on the remote controller, the data can be modified. 5. Short JA 122 & JA 124 for 1 second and release to switch to the normal mode (OFF) position, and the microprocessor is in out of the service mode. 2. Factory Presetting. 1. Short JA 122 & JA 124 for 1 second and release to switch to the service mode position and turn on the main power switch.Initial values are automatically preset, only when a new EEPROM is used (Judge with the first 4 bytes ). 2. The initial data are preset as listed in page 5 & 6. 3. Make sure the data need modify or not (Initial data). Note: Once the chassis has been assembly together and ready to be POWER ON for the FIRST TIME, make sure to short JA122 & JA124 to switch to the service mode position first and then turn on the main power switch (See 2-(1) above). Precaution: If havent done this initiation, it may possibly generate excessive Beam current. 3. For reference please check with memory map (UA1 Series type RH-IX3368CE Attachment) SERVICE MODE (1) In the Service Mode, Key is used to select the mode in the following order. AGC & GEOMETRIC MODE ¯ AGC TAKE OVER POINT (AGC) ¯ VERTICAL SLOPE (V-LIN) ¯ VERTICAL AMP (V-AMP) ¯ VERTICAL SHIFT (V-CENT) ¯ HORIZONTAL SHIFT (H-CENT) ¯ S-CORRECTION (S-COR)WHITE POINT ADJ. MODE ¯ W,P RED STD. W.T. (DRI-RS) ¯ W.P. GREEN STD. W.T.(DRI-GS) ¯ W.P.BLUE STD. W.T. (DRI-BS) ¯ W.P. RED COOL W.T.(DRI-RC) ¯ W.P. GREEN COOL W.T.(DRI-GC) ¯ W.P. BLUE COOL W.T. (DRI-BC) ¯ W.P. RED WARM W.T.(DRI-RW) ¯ W.P. GREEN WARM W.T.(DRI-GW) ¯ W.P. BLUE WARM W.T.(DRI-BW)SUB ADJ. MODE ¯ MAX VOLUME (SUB-VOL) ¯ SUB CONTRAST (SUB-CON) ¯ SUB COLOUR (SUB-COL) ¯ SUB BRIGHTNESS (SUB-BRI) ¯ SUB TINT (SUB-TINT) ¯ SUB SHARPNESS (SUB-SHP) ¯ MAX HOTEL VOLUME (HTL-VOL) ¯ HOTEL PROGRAM NO(HTL-PRG) ¯ OSD GRB REFERENCE (RGB) ¯ BLACK LEVEL OFFSET R(CUT-R) ¯ BLACK LEVEL OFFSET G(CUT-G) ¯ CATHODE DRIVE LEVEL(CDL) FORWARD : CH DOWN KEY REVERSE : CH UP KEY * ( ) means OSD display. FORWARD : CH DOWN KEY REVERSE : CH UP KEYAGC & GEOMETRIC MODEWHITE POINT ADJ. MODESUB ADJ. MODE Y-DELAY ADJ. MODE MISC. OPTION MODEIC OPTION MODEOFFSET ADJ. MODE
4 14A1-RU 14A2-RU 4-2 4-1 Y-DELAY ADJ. MODE ¯ Y-D TIME FOR PAL (TV) (DL-PT) ¯ Y-D TIME FOR SECAM (TV) (DL-ST) ¯ Y-D TIME FOR N358 (TV) (DL-3T) ¯ Y-D TIME FOR N443 (TV) (DL-4T) ¯ Y-D TIME FOR B/W (TV) (DL-TV) ¯ Y-D TIME FOR PAL (AV) (DL-PA) ¯ Y-D TIME FOR SECAM (AV) (DL-SA) ¯ Y-D TIME FOR N358 (AV) (DL-3A) ¯ Y-D TIME FOR N443(AV) (DL-4A) ¯ Y-D TIME FOR B/W (AV) (DL-AV) *(Y-D : Y-DELAY)OFFSET ADJ. MODE ¯ COLOUR OFFSET (PAL) (COL-OP) ¯ COLOUR OFFSET (SECAM) (COL-OS) ¯ COLOUR OFFSET (NTSC358) (COL-O3) ¯ COLOUR OFFSET (NTSC443) (COL-O4) ¯ SHARPNESS OFFSET (PAL) (SHP-OP) ¯ SHARPNESS OFFSET (SECAM) (SHP-OS) ¯ SHARPNESS OFFSET (NTSC358) (SHP-O3) ¯ SHARPNESS OFFSET (NTSC443) (SHP-O4)IC OPTION MODE ¯ VERTICAL SCAN DISABLE(VSD) ¯ BLACK STRETCH (BKS) ¯ AUTO VOLUME LEVELING(AVL) ¯ FAST FILTER IF-PLL(FFI) ¯ ENABLE VERTICAL GUARD (EVG) ¯ EHT TRACKING MODE (EHT) ¯ OVERSCAN SWITCH OFF(OSO) ¯ AUTO COLOUR LIMIT(ACL) ¯ FORCED COLOUR LIMIT(FCO)MISC. OPTION MODE¯ SOUND SYSTEM M (S-M) ¯ SOUND SYSTEM DK (S-DK) ¯ SOUND SYSTEM I (S-I) ¯ SOUND SYSTEM BG (S-BG) ¯ PLAYBACK SECAM (P-SECAM) ¯ FE (RF) NTSC 3.58 (F-N358) ¯ FE (RF) NTSC 4.43 (F-N443) ¯ FE (RF) SECAM (F-SECAM) ¯ VIDEO MUTE AT IDENT LOSS (VMI) ¯ VIDEO MUTE AT PROGRAM /SOURCE CHANGE (VMC) ¯ HOTEL MODE (HTL) ¯ REDUCED FM DEMODULATION GAIN FOR BTSC SIGNAL (BTSC) ¯ AA ¯ NUMBER OF EXT AV SOURCE (AV) ¯ FM WINDOW SEVECTION (FMWS) ¯ SOUND MUTE BIT 0 (SM0) ¯ SOUND MUTE BIT 1 (SM1) ¯ THAI LANGUAGE (THA) ¯ ARABIC LANGUAGE (ARA) ¯ MALAY LANGUAGE (MAL) ¯ CHINESE LANGUAGE (CHI) ¯ FRENCH LANGUAGE (FRE) ¯ RUSSIAN LANGUAGE (RUS) ¯ FORCED V-SYNC SLICING LEVEL(FSL) ¯ SYNC OF OSD (HP2) ¯ TUNER SELECTION (CPT) ¯ BB ¯ BILINGUAL(BIL) ¯ IF AGC SPEED BIT 0 (AGC0) ¯ IF AGC SPEED BIT 1 (AGC1) ¯ FOA Time Constant-RF (FOA-FE) ¯ FOB Time Constant-RF (FOB-FE) ¯ FOA Time Constant-AV (FOA-AV) ¯ FOB Time Constant-AV (FOB-AV) USER DATA IN SERVICE MODE * While SERVICE mode ON, EEPROM DATA will switch to the service data. Also, once SERVICE mode OFF, EEPROM will switch back to previous USER DATA. * In the service mode, the user data establish as below, MODE USER DATA CONTRAST MIN (1/60)COLOUR MIN (1/60)BRIGHTNESS MIN (1/60)TINT MIN (1/60)SHARPNESS MIN (1/60)WHITE TEMP STANDARDS-VOLUME MIN (1/60)BLUE BACK OFFC SYSTEM AUTO S SYSTEM *1 *1 : For each CH, before changing service mode setting. The flow of Mode lists as following, * Direct Key-in Step1 Mode RC COMMAND SERVICE-ITEMFUNCTION AGC CONTRAST DOWN V-LINCOLOUR DOWN V-AMPBRIGHTNESS DOWN V-CENT TINT DOWN H-CENT SHARPNESS DOWN EW / / SYSTEM HBBLUEBACK S-CORTIMER SUB-VOL CONTRAST UP SUB-CONCOLOUR UP SUB-COLBRIGHTNESS UP SUB-BRITINT UP TINT SUB TINTSHARPNESS UP SUB-SHP
514A1-RU 14A2-RU 5-2 5-1 EEPROM ITEMS OSD DATA LENGTH INITIAL DATA FIX/ADJ REMARK VERTICAL SCAN DISABLE VSD 0(DISABLE)/1(ENABLE) 0 FIX BLACK STRETCH BKS 0(DISABLE)/1(ENABLE) 1 FIX AUTOMATIC VOLUME LEVELING AVL 0(DISABLE)/1(ENABLE) 1 FIX FAST FILTER IF-PLL FFI 0(DISABLE)/1(ENABLE) 0 FIX ENABLE VERTICAL GUARD (RGB BLANKING) EVG 0(DISABLE)/1(ENABLE) 1 FIX ONLY BLK EHT TRACKING MODE (HCO) EHT 0(DISABLE)/1(ENABLE) 1 FIX OVERSCAN SWITCH OFF OSO 0(DISABLE)/1(ENABLE) 0 FIX AUTO COLOUR LIMIT ACL 0(DISABLE)/1(ENABLE) 0 FIX FORCED COLOUR LIMIT FCO 0(DISABLE)/1(ENABLE) 0 FIX SOUND SYSTEM M S-M 0(DISABLE)/1(ENABLE) 0 FIX SOUND SYSTEM DK S-DK 0(DISABLE)/1(ENABLE) 0 FIX SOUND SYSTEM I S-I 0(DISABLE)/1(ENABLE) 0 FIX SOUND SYSTEM BG S-BG 0(DISABLE)/1(ENABLE) 1 FIX PLAYBACK SECAM P-SECAM 0(DISABLE)/1(ENABLE) 1 FIX FE (RF) NTSC 3.58 F-N358 0(DISABLE)/1(ENABLE) 0 FIX FE (RF) NTSC 4.43 F-N443 0(DISABLE)/1(ENABLE) 1 FIX FE (RF) SECAM F-SECAM 0(DISABLE)/1(ENABLE) 1 FIX VIDEO MUTE AT IDENT LOSS VMI 0(DISABLE)/1(ENABLE) 1 FIX VIDEO MUTE AT PROGRAM/SOURCE CHANGE VMC 0(DISABLE)/1(ENABLE) 1 FIX HOTEL MODE HTL 0(DISABLE)/1(ENABLE) 0 FIX REDUCED FM DEMODULATOR GAIN FOR BTSC SIGNAL BTSC 0(DISABLE)/1(ENABLE) 0 FIX NUMBER OF EXTERNAL AV SOURCE AV 0 FOR1 AV/1 FOR 2AV 1 FIX FM WINDOW SELECTION FMWS 0(DISABLE)/1(ENABLE) 0 FIX SOUND MUTE BIT 0 SM0 0(DISABLE)/1(ENABLE) 1 FIX SOUND MUTE BIT 1 SM1 0(DISABLE)/1(ENABLE) 0 FIX THAI LANGUAGE THA 0(DISABLE)/1(ENABLE) 1 FIX *1 ARABIC LANGUAGE ARA 0(DISABLE)/1(ENABLE) 1 FIX *1 MALAY LANGUAGE MAL 0(DISABLE)/1(ENABLE) 1 FIX *1 CHINESE LANGUAGE CHI 0(DISABLE)/1(ENABLE) 1 FIX *1 FRENCH LANGUAGE FRE 0(DISABLE)/1(ENABLE) 1 FIX *1 RUSSIAN LANGUAGE RUS 0(DISABLE)/1(ENABLE) 1 FIX FORCED V-SYNC SLICING LEVEL FSL 0(DISABLE)/1(ENABLE) 0 FIX SYNC OF OSD HP2 0(DISABLE)/1(ENABLE) 0 FIX TUNER SELECTION (0:SHARP/ALPS; 1:MURATA) CPT 0(BRAZIL)/1(ARGENTINA) 0 FIX BILINGUAL BIL 0(DISABLE)/1(ENABLE) 0 FIX IF AGC SPEED BIT 0 AGC0 0(DISABLE)/1(ENABLE) 1 FIX IF AGC SPEED BIT 1 AGC1 0(DISABLE)/1(ENABLE) 0 FIX PHI-1 TIME CONSTANT (RF) FOA-FE 0(DISABLE)/1(ENABLE) 0 FIX PHI-1 TIME CONSTANT (RF) FOB-FE 0(DISABLE)/1(ENABLE) 0 FIX PHI-1 TIME CONSTANT (OFF AIR) FOA-AV 0(DISABLE)/1(ENABLE) 1 FIX PHI-1 TIME CONSTANT (OFF AIR) FOB-AV 0(DISABLE)/1(ENABLE) 1 FIX NOTE : FIXED DATA,PLEASE DO NOT CHANGE WITHOUT SPECIFIC INSTRUCTION. *1: MANUALLY CHANGE 1 TO 0. EEPROM ITEMS OSD DATA LENGTH INITIAL DATA FIX/ADJ REMARK AGC TAKE OVER POINT AGC 0~63 14 ADJVERTICAL SLOPE V-LIN 0~63 32 ADJVERTICAL AMPLITUDE V-AMP 0~63 32 ADJVERTICAL SHIFT V-CENT 0~63 32 ADJHORIZONTAL SHIFT H-CENT 0~63 32 ADJS-CORRECTION S-COR 0~63 0 FIXWHITE POINT RED STD WHITE TEMP DRI-RS 0~63 32 FIXWHITE POINT GREEN STD WHITE TEMP DRI-GS 0~63 32 ADJWHITE POINT BLUE STD WHITE TEMP DRI-BS 0~63 32 ADJWHITE POINT RED COOL WHITE TEMP DRI-RC 0~63 32 FIXWHITE POINT GREEN COOL WHITE TEMP DRI-GC 0~63 32 FIX (DRI-GS)-7 DATAWHITE POINT BLUE COOL WHITE TEMP DRI-BC 0~63 32 FIX (DRI-BS)DATAWHITE POINT RED WARM WHITE TEMP DRI-RW 0~63 25 FIXWHITE POINT GREEN WARM WHITE TEMP DRI-GW 0~63 32 FIX (DRI-GS)-7 DATAWHITE POINT BLUE WARM WHITE TEMP DRI-BW 0~63 32 ADJ (DRI-BS)-7 DATAMAX VOLUME SUB-VOL 0~63 63 FIXSUB CONTRAST SUB-CON 0~63 63 (50 *3) FIXSUB COLOUR SUB-COL 0~63 32 ADJSUB BRIGHTNESS SUB-BRI 0~63 32 ADJSUB TINT SUB-TINT 0~63 32 ADJSUB SHARPNESS SUB-SHP 0~63 32 ADJMAX HOTEL VOLUME HTL-VOL 0~63 32 ADJHOTEL PROGRAM NUMBER HTL-PRG 0~99 OR>99FOR NONE 255 FIX OSD GRB REFERENCE RGB 0~15 15 FIXBLACK LEVEL OFF-SET R CUT-R 0~15 8 FIXBLACK LEVEL OFF-SET G CUT-G 0~15 8 FIXCATHODE DRIVE LEVEL CDL 0~15 0 FIXY-DELAY TIME FOR PAL(TV) [YD] DL-PT 0~15 12 FIXY-DELAY TIME FOR SECAM(TV) [YD] DL-ST 0~15 15 FIXY-DELAY TIME FOR N358 (TV) [YD] DL-3T 0~15 12 FIXY-DELAY TIME FOR N443 (TV) [YD] DL-4T 0~15 12 FIXY-DELAY TIME FOR B/W (TV) [YD] DL-TV 0~15 12 FIXY-DELAY TIME FOR PAL (AV) [YD] DL-PA 0~15 12 FIXY-DELAY TIME FOR SECAM (AV) [YD] DL-SA 0~15 15 FIXY-DELAY TIME FOR N358 (AV) [YD] DL-3A 0~15 12 FIXY-DELAY TIME FOR N443 (AV) [YD] DL-4A 0~15 12 FIXY-DELAY TIME FOR B/W (AV) [YD] DL-AV 0~15 12 FIXCOLOUR OFFSET (PAL) COL-OP 0~15 8 FIXCOLOUR OFFSET (SECAM) COL-OS 0~15 8 FIXCOLOUR OFFSET (NTSC358) COL-03 0~15 4 FIXCOLOUR OFFSET (NTSC443) COL-O4 0~15 4 FIXSHARPNESS OFFSET (PAL) SHP-OP 0~15 8 FIXSHARPNESS OFFSET (SECAM) SHP-OS 0~15 4 FIXSHARPNESS OFFSET (NTSC358) SHP-O3 0~15 12 FIXSHARPNESS OFFSET (NTSC443) SHP-O4 0~15 8 FIXAFTER SHORT JA 122 & JA 124 ,AND TURN ON THE MAIN POWER SWITCH,READ DATA FROM EEPROM ADDRESS 00H ~ 03H,AND COMPARE TO THE LIST BELOW, IF DIFFERENT, INITIALIZE THE EEPROM. Address : Data Address : Data 00H : 55H 02H : 43H 01H : 4FH 03H : A1H
6 14A1-RU 14A2-RU 6-2 6-1 INITIAL SETTING (1). In service mode, After execute select POS 1, store the following tuning data in EEPROM. MCL1 CH-NO Fv (MHz) SOUND SYS MCL1 CH-NO Fv (MHz) SOUND SYS01 48.25 B/G2 62.25 B/G3 77.25 D/K4 175.25 B/G5 182.25 B/G6 183.25 D/K7 191.25 D/K8 196.25 B/G9 199.25 M10 210.25 B/G11 224.25 B/G12 471.25 B/G13 487.25 I14 503.25 B/G15 575.25 B/G16 583.25 B/G17 599.25 B/G18 621.25 M19 639.25 D/K20 703.25 B/G21 735.25 I22 767.25 B/G23 815.25 B/G24 855.25 I25 855.25 B/G26 55.25 M27 83.25 M28 183.25 M29 193.25 M30 217.25 M31 471.25 M32 477.25 M33 693.25 M34 885.25 M35 112.25 B/G36 168.25 B/G3738 294.25 B/G39 463.25 B/G4041 647.25 B/G42 663.25 B/G43 679.25 B/G 44 174.95 B/G45 175.55 B/G ITEMS DATA SETTING LAST PROGRAM/CHANNEL 1FLASHBACK PROGARM/CH 1 DIGIT 1C-SYSTEM AUTOS-SYSTEM D/KSKIP OFFAFC ONVOLUME 1CONTRAST 60 (MAX)COLOUR 0 (CENTER)BRIGHTNESS 0 (CENTER) TINT 0 (CENTER) SHARPNESS 0 (CENTER)WHITE TEMP STANDARDREMINDER TIMER In-active, --:-- ON TIMER In-active, --:--OFF TIMER In-active, --:--LAST POWER POWER-ONLANGUAGE RUSSIANBLUE BACK MUTE OFFHOTEL MODE OFF0 CHANNEL SKIP ON SHIPPING SETTING & CHECKING (1) The following default data has been factory-set for the E 2PROM. *1: Please refer defaults for LANGUAGE and SOUND SYSTEM per MODEL as follows, MODEL LANGAUGE SOUND SYSTEMRU RUSSIAN D/K MODEL Geomagnetism (H,V) nT Background Lang. S-SYS J (RU) 45,000 20,000 7500K RUSSIAN D/KFACTORY SETTINGS BY MODELS (Reference: Geomagnetism Adjustment) *OSD LANG MUST BE SET IN SERVICE MODE,BUT ITS BETTER TO WRITE IN EEPROM. LANGUAGE QUANTITIES:ENGLISH/RUSSIAN
714A1-RU 14A2-RU 7-2 7-1 PURITY ADJUSTMENT No. Adjusting point Adjusting procedure/conditions Waveform and others PURITY ADJ.1. Receive the GREEN-ONLY signal. Adjust the beam current to about 500 mA. 2. Degauss the CRT enough with the degausing coil. Note: Follow the Job Instruction Sheet to ad- just the magnetic field. Vertical Bv : +0.040 mT (0.40 gauss) Horizontal Bh: +0.020 mT (0.20 gauss) (See page 6.) 3. Maintain the purity magnet at the zero magnetic field and keep the static convergence roughly adjusted. 4. Observe the points a, b as shown in Fig. 4-1 through the microscope. Adjust the landing to the rank A requirements. 5. Orient the raster rotation to 0 eastward. 6. Tighten up the deflection coil screws. È Tightening torque: 108 ± 20 N (11 ± 2 kgf) 7. Make sure the CRT corners landing meet the A rank requirements. If not, stick the magnet sheet to correct it. Note: This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 500 mA. Note:Set the service mode by TP1001 & TP1002 (short) then press factory proc- ess R/C RGB key to change to RGB mono colour mode. * For the following colours press R/C RGB key to change. 1 * Press R/C RGB key for 1 sec- ond in NORMAL MODE, the colour will change to RGB mono colour mode. The TEXT Key R. G. Cy Key can be directly use to change to other colours screen. a b A B A B A = B A = B Rank A (on the right of the CRT) Rank A (on the left of the CRT)Fig. 4-1 Fig. 4-2 Fig. 4-3 Green-only Blue-only Red-only Signal-colour screen cleared PIF ADJUSTMENT No. Adjusting point Adjusting procedure/conditions Waveform and others Tuner IFT ( PRESET ) 11. Get the tuner ready to receive the CH. E - 9 signal,but with no signal input. Adjust the PLL data. 2. Connect the sweep generators output cable to the tuner antenna. ( RF SWEEP ) 3. Adjust the sweep generators to 80dBuV. 4. Connect the response lead ( use LOW IMPED- ANCE probe with wave detector ; see Fig.1 ) to the tuners IF output terminal. ( This terminal must have the probe alone connected ). 5. Set the RF AGC to 0 - 6 V with no saturation with the waveform. 6. Adjust the tuner IF coil to obtain the waveform as shown in Fig. 2. Note: Be sure to keep the tuner cover in position during this adjustment. RF-AGC TAKE OVER POINT AD- JUSTMENT (I2C BUS CONTROL)1. Receive PAL COLOUR BAR signal. ÈSignal Strength: 57 ± 1 dBmV (75 ohm open) 2. Connect the oscilloscope to TP201 (TunerÕs AGC Terminal) as shown in Fig. 3. 3. Call AG mode in service mode. Adjust the AG bus data to obtain the Tuner output pin drop 0.1V below maximum voltage. 4. Change the antenna input signal to 63~67dBmV, and make sure there is no noise. 5. Turn up the input signal to 90~95 dBmV to be sure that there is no cross modulation beat.Note: For the 50 ohm signal strength gauge, when not using 50/75 impedance adapter, signal strength is 52 ±1dB mV(75 ohm open), in- stead of 57±1dB mV (75 ohm open). Precaution: The loss of using impedance adapter 2 È Bias box: About 4.5 V Oscilloscope 0.1V TV Set Bias boxTP201 + + – – Fig. 3 E-9 CH P C 10k100k 1n60 75ohm IF OUT -1.5+/-0.8dB1000p Oscilloscope Fig.1 Fig.2
8 14A1-RU 14A2-RU 8-2 8-1 CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENTNo. Adjusting point Adjusting procedure/conditions Waveform and others CRT CUTOFF ADJUSTMENT (I 2C BUS CONTROL)1. Switch TV to VIDEO mode,BLUE BACK OFF, with NO VIDEO signal. 2. Press R/C to set Picture Normal condition. 3. Connect the oscilloscope to Red OUT from IC801.(TP851) Range : 1 V/Div (DC) Sweep : 5 msec/Div 4. Adjust SCREEN VR ,so that the tip of signal reach 3.0 Vdc + 0.1 Vdc. 1 1 V 3.0Vdc 0 Maximum beam check1. Receive the Monoscope Pattern signal. 2. Press R/C to set Picture NORMAL condition. 3. Connect the DC miliammeter between TP603 (+) and TP602 (Ð). (Full Scale: 3 mA Range) 4. Beam current must be within 800 ± 100 mA. 4SUB-BRIGHT- NESS ADJUSMENT (I2C BUS CONTROL)1. Call SUB-BRI in service mode. (Receive Cross- hatch pattern with 5 black level windows) 2. Adjust the SUB BRIGHT bus data in order that the line 1, 2 and 3 have the same darkness wherelse line 4 is slightly brighter than line 1, 2 and 3 and finally line 5 will be the brighter than line 4. 2 1, 2, 3 are in same black level. 1 2 3 4 5 WHITE BAL- ANCE SERV- ICE MODE ADJ. (I2C BUS CONTROL) 3Refer to Page 6. # 7500° K X : 0.300 Y : 0.310 ( MINOLTA COLOUR ANALYZER CA-100) *NOTE: Above DATA can be UP/ DOWN by volume key. LOW HIGH 14 10cd/m2 200cd/m2 20/21 10cd/m2 120cd/m2 * 7500° K DRI-GW=DRI-GSDATA-5 DRI-BW=DRI-BS DATA-5 1. Receive the Monoscope Pattern signal. 2. Press R/C to set Picture NORMAL condition. 3. Connect the DC miliammeter between the TP 602 ( - ) TP 603 ( + ). 4. Check Beam current should be around 800mA) 5. Set it to service mode and adjust the DRI-GS, & DRI-BS data to have a colour temperature of 7500°K ( white ). 6. Receive WHITE pattern, WITH BURST signal, and set BRIGHTNESS Y by generator, to ** 10 cd/m2 (MINOLTA CA-100) by reducing LUMINATE Y signal. 7. Adjust CUT-R & CUT-G to get 7,500. Then go back NORMAL mode (HIGH BRIGHT**) to check colour temperature. If out of range, back to (1). Note: This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 500 mA. * ADJUST DRI-GC/GW, DRI-BC/BW as following DATA, after finishing DRI-BS and DRI-GS DATA ADJUSTMENT. DRI-RW=32 (FIXED), DRI-GW=DRI-GS-7*, DRI-BW=DRI-BS-7*DRI-RC=25*, DRI- BC=DRI-BS, DRI-GC=DRI-GS-7* CONVERGENCE ADJUSTMENT No. Adjusting point Adjusting procedure/conditions Waveform and others CONVERGENC ADJ. ( To be done after the purity adjustment.1. Receive the Crosshatch Pattern signal. 2. Using the remote controller, call NORMAL mode. STATIC CONVERGENCE 1. Turn the 4-pole magnet to a proper opening an- gle in order to superpose the blue and red col- ours. 2. Turn the 6-pole magnet to a proper opening an- gle in order to superpose the green colour over the blue and red colours. DYNAMIC CONVERGENCE 1. Adjust the convergence on the fringes of the screen in the following steps. a) Fig. 5-1: Drive the wedge at point a and swing the deflection coil upward. b) Fig. 5-2: Drive the wedge at points b and c and swing the deflection coil downward. c) Fig. 5-3: Drive the c wedge deeper and swing the deflection coil rightward. d) Fig. 5-4: Drive the b wedge deeper and swing the deflection coil leftward. 2. Fix all the wedges on the CRT and apply glass tape over them. 3. Apply lacquer to the deflection yoke lock screw, magnet unit (purity, 4-pole, 6-pole magnets) and magnet unit lock screw. Finally received the Red-only and Blue-only sig- nals to make sure there is no other colours on the screen. 1 RGBBGR R G B R G BB G R B G RRGB BGR LacquerWedge a Wedge bWedge cAbout 100¡ About 100¡ 4-pole magnet 6-pole magnet CRT neck 40cm Lacquer Purity magnetFig. 5-1 Fig. 5-2 Fig. 5-3 Fig. 5-4
914A1-RU 14A2-RU 9-2 9-1 No. Adjusting point Adjusting procedure/conditions Waveform and others SUB-TINT (I 2C BUS CON- TROL)1. Receive the NTSC3.58 Colour Bar signal through AV in. 2. Connect the oscilloscope to TP853 (Pin (5) of P882) BLUE-OUT. ÈRange : 100mV/div. (AC)(Use Probe 10:1) ÈSweep time : 10 msec/div. 3. Call the SUB-TINT mode in service mode. Ad- just the SUB-TINT bus data to obtain the wave- form shown as Fig. 9. 4. Clear the SERVICE mode. 1 NTSC CHROMA ADJUSTMENT No. Adjusting point Adjusting procedure/conditions Waveform and others BEAM PRO- TECTOR1. Receive Monoscope Pattern signal. 2. Set CONTRAST MAX. 3. Set BRIGHT MAX. 4. During the Collector & Emitter of Q883/5/7 short, make sure the protector ON and switch to standby mode. 1* Select one of Q883/5/7 to do each short test. H, V PROTEC- TOR1. Receive Monoscope Pattern signal. 2. Connect output of Bias Box to D607 cathode (R606 side). 3. Set voltage of Bias Box to 18V and make sure the protector is not work. 4. Set voltage of Bias Box to 27V, and make sure the protector is work. 2Other protectors1. Once finish rectified Electrolytic Capacitor short testing in +B line, check all possible damaged components on +B line. (Use random selected set for inspection) 3 PROTECTOR OPERATION CHECKING No. Adjusting point Adjusting procedure/conditions Waveform and others VIDEO AND AUDIO OUTPUT CHECK1. Receive the PAL Color Bar signal (100% White Color Bar, Sound 400 Hz 100% Mod.) 2. Terminate the Video output with a 75 ohm imped- ance. Make sure the output is as specified (1.0 Vp-p ±3 dB). 3. Terminate the Audio output with a 10k ohm im- pedance. Make sure the output is as specified (1.76 Vp-p ±3 dB). 1 VIDEO AND AUDIO INPUT CHECK1. Using the TV/AV key on the remote controller, make sure that the modes change in order of TV, AV1, AV2 & TV again and the video & audio out- put are according to the input terminal for each mode. 2 A/V INPUT AND OUTPUT CHECKING WY Cy G Mg R B SAME LEVEL Fig. 9 HORIZONTAL AND VERTICAL DEFLECTION LOOP ADJUSTMENTNo. Adjusting point Adjusting procedure/conditions Waveform and others V-SLOPE(I 2C BUS CON- TROL) V-CENTER (I2C BUS CON- TROL) V - AMP (I 2C BUS CON- TROL) S-CORREC- TION (I 2C BUS CONTROL) H - CENTER1. Receive Monoscope Pattern Signal. 2. Call the V-LIN mode. 3. Increase or decrease V-LIN by Volume key till the horizontal line in the center of monoscope is just at the position where the blanking starts. 1. Call the V-CENT mode. 2. Increase or decrease V-CENT by Volume key till the picture is centered. 1. Call the V-AMP mode. 2. Increase or decrease V - AMP by Volume key to set overscan of 9.5% typical. Adjustment Spec 9.5% range +1% -0%. FIXED DATA, NO NEED TO ADJUST. 1. Call the H-CENT mode. 2. Increase or decrease H-CENT by Volume key to center the picture horizontal. 1 2 3 4 5 Focus adjustment1. Receive the Monoscope Pattern signal. 2. Press R/C to set Picture NORMAL condition. 3. Adjust the focus control to get the best focus. 6 PAL CHROMA ADJUSTMENT No. Adjusting point Adjusting procedure/conditions Waveform and others SUB COLOUR (I 2C BUS CONTROL)1. Receive the PAL Colour Bar signal. 2. Press R/C to set Picture Normal condition. 3. Connect the oscilloscope to Red cathode(TP854). ÈRange : 20 V/div. (AC) (Using 10:1 probe) ÈSweep time : 10 msec/div. 4. Using the R/C call SUB COL in SERVICE mode. Adjust SUB COLOUR bus data, so that the 75% White & Red portions of PAL Colour Bar be at the same level shown as Fig. 8. 5. Clear the SERVICE mode. 1 Cy GB W Y 100%W 75%Mg RFig. 8
10 14A1-RU 14A2-RU 10-2 10-1 FUNCTION OPERATION CHECKING (VIDEO AND AUDIO) (Continued) No. Adjusting point Adjusting procedure/conditions Waveform and others COLOUR SYSTEM1. Receive the PAL COLOUR BAR signal, press the COLOUR SYSTEM key to select modes ex- cept PAL, check the COLOUR is not working prop- erly. Then, select the PAL mode. Check again its colour so that it is working properly. 2. Receive NTSC 4.43/3.58 COLOUR BAR signal thru AV, press COLOUR SYSTEM key to select modes except N4.43/3.58, check the COLOUR is not working properly. Then, select the NTSC 4.43/3.58 mode. Check again its colour so that it is working properly. 9SOUND SYSTEM 101. Receive PAL-D/K signal, press the SOUND SYSTEM to select B/G, I. Check the sound out- put is not working properly. Select D/K and check the sound output to make sure it is working prop- erly. 2. Receive PAL-I signal, press the SOUND SYS- TEM to select B/G, D/K. Check the sound output is not working properly. Select I and check the sound output to make sure it is working properly. 3. Receive PAL-B/G signal, press the SOUND SYSTEM to select I, D/K. Check the sound out- put is not working properly. Select B/G and check the sound output to make sure it is working prop- erly. 1. Receive PAL COLOUR BAR signal. 2. Turn up the volume control to maximum, make sure the sound is heard from the speakers. Then put the unit in no signal state. 3. Check the sound mute is effective. 4. Finally turn sound level of CTV to minimum.NOISE MUTE CHECKING 11OSD LAN- GUAGE QUANTITY CHECKCheck OSD LANGUAGE quantity and type as Eng- lish and Russian. 12 FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)No. Adjusting point Adjusting procedure/conditions Waveform and others CONTRAST key1. Receive Monoscope Pattern signal. 2. Set P-Mode to select CONTRAST. 3. Press Volume Up/Down key to check whether the CONTRAST effect is OK or not. 1 1. Receive Color Bar signal. 2. Set P-Mode to select COLOUR. 3. Press Volume Up/Down key to check whether the COLOUR effect is OK or not. 2 COLOUR key BRIGHTNESS key1. Receive Monoscope Pattern signal. 2. Set P-Mode to select BRIGHTNESS. 3. Press Volume Up/Down key to check whether the BRIGHTNESS effect is OK or not. 3TINT key1. Receive the NTSC Colour Bar signal thru AV in. 2. Set P-Mode to select TINT. 3. Press Volume Up/Down key to check TINT, UP for GREEN direction and DOWN for PURPLE di- rection whether is OK or not. 4SHARPNESS Key1. Receive Monoscope Pattern signal. 2. Set P-mode to select SHARPNESS. 3. Press Volume Up/Down key to check whether the SHARPNESS effect is OK or not. 5WHITE TEMP1. Receive Monoscope Pattern signal. 2. Set FUNCTION to select WHITE TEMP. 3. Press Volume Up/Down key to check WHITE TEMP Option, STANDARD: NORMAL SETTING, WARM for more REDDISH direction changing, COOL for more BLUISH di- rection changing. 8NORMAL Key 7 1. Once in PICTURE Mode, and theNORMAL key is pressed, all the settings will be present to nor- mal setting. (Normal setting value for every mode). ÈCONTRAST : MAX ÈCOLOUR : CENTER ÈBRIGHTNESS : CENTER ÈTINT : CENTER ÈSHARPNESS : CENTERNotes:If nothing is display mean contrast, colour, bright, tint, sharpness are all in nor- mal setting.CH DISPLAY COLOUR1. All Ch (1~99) will have an OSD display of the channel number in green colour under AFT ON condition. 6