CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazard- 2. The only source of X-RAY RADIATION in this TV receiver ous X-RAY RADIATION.
CRT ASSEMBLY REPLACEMENT AND MOUNTING CAUTION : DO NOT LOOSEN THE HEX HEAD BOLTS WITH SPRINGS (12 PCS), BECAUSE THOSE ARE FOR SEALING OF CRT COOLANT. Attention Serviceman The Hex Head Bolts with Springs. (see sketch) used on 8 o'clock CRT assembly, are “NOT”...
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TO REMOVE CRT (Same procedure for R, G, B) 1. Remove CRT DRIVE Board, S. V. M. COIL and DEF. YOKE from CRT. 2. Remove Lens Assembly. 3. Detach CRT Anode Cap from CRT. Anode Cap 4. Remove CRT Assembly from CRT Mounting. CRT REPLACEMENT (Same procedure for R, G, B) Reverse the removal procedures except the followings.
WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRE- CAUTION" AND "PRODUCT SAFETY NOTICE" ON PAGE 3 OF THIS MANUAL. PICTURE TUBE COMPONENTS ADJUSTMENT ADJUSTING PROCEDURE IN REPLACING CRT RGB FOCUS ADJUSTMENT 1. Call-up the adjustment mode (see page 10) User convergence center check Cutoff 2.
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Note: The aim of the above-described adjustment procedure Note: Keep in mind that only the BLUE electric focus is ad- for the Green lens focus is to obtain the best lens focus justed with the black cross-hatch. after 2 - 3 hours of warming up taking into account the focus drift;...
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LOCATION OF SCREEN AND FOCUS VR'S To remove the Speaker grille and Front panel. FOCUS VR's SCREEN VR's Front grille REPLACEMENT OF HIGH VOLTAGE CABLE 1. When replacing Anode Lead or Anode Cap with new one, remove Lead Holder from old lead as shown in ANODE LEAD figure below, and put it on new lead.
WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAU- TION" AND "PRODUCT SAFETY NOTICE" ON PAGE 3 OF THIS MANUAL. SERVICE POSITION In order to assure the performance, processed wires shall be replaced after the repair work. Work procedures are as follows: 1.
SERVICE MODE 1. ENTERING TO SERVICE MODE 3) While pressing the o button, 1) Press o button once on 2) Press o button again to Remote Control. keep pressing. press MENU button on TV set. Item Data or Sound Mute (Service mode display) 2.
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4. SELECTING THE ADJUSTING ITEMS 1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2. (t button for reverse order) Refer to table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 33) 5.
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8. SELF DIAGNOSTIC FUNCTION 1) Press “9” button on Remote Control during display of adjustment menu in the service mode. The diagnosis will begin to check if interface among IC’s are executed properly. 2) During diagnosis, the following displays are shown. Indicated color of mode now selected : Green and Red Indicated color of other modes : White...
DESIGN MODE 1. ENTERING TO DESIGN MODE 1) Select the Service mode. 2) While pressing CALL button on Remote 3) Press MENU button on TV. and press MENU button on TV. ITEM Press DATA Press (Design mode) (Adjustment mode) When QA02 is initialized, items “OPT0” and “OPT1” of DESIGN MODE are set to the data of the representative model of this chassis family.
ELECTRICAL ADJUSTMENT ITEM ADJUSTMENT PROCEDURE WIDTH 1. Call up the adjustment mode display, then select the item WID. (WID) 2. Press the VOLUME t button to get the picture so the left or right edges of raster begins to lack. 3.
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Viewpoint of WID (adjustment of horizontal amplitude) ..left and right flags Left side Right side Left flag end Right flag end Adjust the WID data so that the number of register flags on the left and right of Phillips pattern will come to 7 in total when added. Direction of adjustment: Facing to the east –...
CONVERGENCE ADJUSTMENT 1. PICTURE ADJUSTMENT 1-2. Service Mode The adjustment can be done on 7 screens; PAL 100 Hz, PAL 625P, NTSC 525P. To synchronize correction wave to each 1-2-1. Outline frequency, receive the suitable signal. Service mode is controlled by software of micro-processor Note: The convergence circuit is a circuit to eliminate screen QA01, and is one of function of set.
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1-2-3. Adjustment menu • Before adjusting convergence, make sure that the main adjustment has been done correctly. • To do the adjustment for each mode of NO.1, 3-8, the suitable signal and picture mode corresponding with each mode are necessary. •...
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2. KEY FUNCTION OF REMOTE CONTROL UNIT 0 key ....Green test pattern ON/OFF b key .... Mode picture change over CALL 8 key ....Cursor down / adjusting point down 2 key ....Cursor up / adjusting point up 6 key ....
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3. Picture a) 100 Hz, 625P mode (PAL) ..Correcting point: Horizontal 8 x Vertical 8 (Arrow marks denote correcting point) The first picture The second picture Data display Cursor (red) Screen center (Blinking) The first picture The second picture is indicated with data on top left of the first picture, therefore, convergence cannot be adjusted by this pic- Crosshatch pattern.
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Correcting point: Horizontal 8 x Vertical 7 b) 525P mode (NTSC) ..(Arrow marks denote correcting point) The second picture The first picture Data display Cursor (red) Screen center (Blinking) The first picture During this period, the changed data is transferred from RAM QH001 to E PROM, QH174 (NTSC 525P), and saved.
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5. Screen adjustment dimensions 5-1 PAL DFS, Progressive (4:3/Mode) Center CENTER a´ b´ c´ d´ A´ B´ C´ GEOMETRY D´ 1) VERTICAL MODEL a, a' b, b' c, c' d, d' V SPAN 43CVR 55.0 164.5 274.0 310.5 36.5 50CVR 63.5 191.0 318.0...
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6. TELETEXT (P2) CIRCUIT 6-1 OUTLINE TELETEXT circuit extracts several data of input video signal, and decode them to generate display signal. It works as Stand- alone Subsystem. Major feature of TELETEXT circuit is as follows. - Digital Data Slicer of VBI (Vertical Blanking Interval) data - Display 50/60/100/120Hz mode - Display Progressive mode (Only SAA5695HL) - Decode &...
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6-3 PART DESCRIPTION QT01 SAA5665HL/SAA5695HL(P2) QT01 works as Sub Micro Computer. It contains CPU(80C51), Data Capture and Display Hardware for Teletext. The block Diagram of SAA5665HL/SAA5695HL(Painter II, P2) is shown in Fig. 6-3-1. SAA5695HL will support the progressive scan mode (under development). Fig.
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7. SUBDATA DESCRIPTION Sub data (Design data) of Teletext circuit is as follow. Their sub data is displayed only at Design mode. 7-1 TEXT Screen Position To adjust TEXT screen by using following subdata - TXTH = Horizontal Position Offset for Teletext screen (1/4 Character/Step) - TXTV = Vertical Position Offset for Teletext screen (1 line/Step) 7-2 H/V Synchronization...
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8-1-2 NAVIGATION MODES To provide faster access by the user to certain pages within the Teletext service a method was included in the Teletext specification for the broadcaster to link pages, so they could be accessed using a single key press. Due to the constraints of how some equipment operated in the field one methods of linking or navigation of these pages were developed and are known as FLOF .
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8-1-3 DATA TRANSMISSION FORMAT Teletext data is transmitted on VBI TV line. Subject to availability, Lines 6 to 22 and 318 to 335 may be used to carry Teletext data packets as shown in Fig. 8-1-3. Fig. 8-1-3 A Teletext data packet occupies one TV line. Each packet starts with a clock run-in and framing code sequence for establishing bit and byte synchronization within the decoder.
SCREEN AND MIRROR ALIGNMENTS ASSEMBLING AND MOUNTING OF FRONT SCREEN * Please refer to MECHANICAL DISASSEMBLY page 38. CLEANING OF LENS AND MIRROR CAUTION : Do not hold the optical system parts (lens and mirror) with bare hand to avoid finger-prints on the surface of those parts.
CIRCUIT CHECKS HIGH VOLTAGE CHECK CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on this chassis. Checking should be done following the steps below. 1. Connect an accurate high voltage meter to the anode of the picture tube. 2. Turn on the receiver. Set the BRIGHTNESS and CONTRAST to minimum (zero beam current). 3.
CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 43" 50" HIGH VOLTAGE AT ZERO BEAM: 31.8 kV 31.8 kV MAX HIGH VOLTAGE: 32.5 kV 32.5 kV AC VOLTAGE 220~240 V 220~240 V Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Adjustment Reference data...
LOCATION OF CONTROLS (Representative: 43CVR9UR) Front MENU Input source selection POWER switch Remote sensor a (3) Video 3 input terminals Channel position ts Menu Volume – + Menu < > Press to draw out the control box. Headphones jack (ø3.5 mm) Power indicator (red) For private listening, connect headphones.
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Remote Controller CALL index, initial Power on/Standby CALL (For Toshiba TV/VCR/DVD only) Number buttons (0-9) 1 or 2 digit channel selection Input source selection (A 1 – A 4) Selectable picture Selectable sound EXIT MENU MENU EXIT DVD MENU MENU –...
PROGRAMMING CHANNEL MEMORY • First, use the ASM (Automatic Search Memory) function to preset all the active channels in your area automatically. Then, arrange the preset channels with the SEARCH, SKIP functions, MFT (Manual Fine Tuning) so that you can tune into only desired channels. •...
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To preset channels (MFT, AFT) MFT (Manual Fine Tuning) AFT (Automatic Fine Tuning) The adjustments below are not necessary under normal The AFT function automatically corrects slight fluctuations receiving conditions. However, in areas of inferior broadcast when receiving signals. conditions where adjustment is necessary for a better Select the channel you want to fine-tune with the CH picture, perform the MFT.
• The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model number and Description. • The PC board assembly with mark is no longer available after the end of the production. Models :43CVR9UR, 50CVR9UR Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
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SCHEMATIC DIAGRAM MODEL : 43CVR9UR / 50CVR9UR WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.
CIRCUIT BLOCK DIAGRAM AUDIO AUDIO AMP PROCESSOR SPEAKERS CLK,DATA,CS,BUSY,RST TUNER IF MPX Micro Processor with Module TEXT antenna D.CONV Front End HEADPHONE JACK Processor EEP ROM TA1318N RGB Processor VIDEO OUT TA1360AN 3D YCS TC90A65F SYNC-AV 3L Comb V-OUT Filter Y Cb Cr TDA9181T VIDEO OUT...
SPECIFICATIONS MODEL 43CVR9UR 50CVR9UR Rated voltage g 220 – 240 V 50 Hz g 220 – 240 V 50 Hz 260 W 260 W Power consumption 1.4 watts at standby 1.4 watts at standby (at g 220 V, 50 Hz)