Related Manuals for Quadro CTV-37D10 TXT
Summary of Contents for Quadro CTV-37D10 TXT
- Page 1 SERVICE MANUAL Brown goods TV SETS 14", 21" 3P51 chasis MODELS: CTV-37D10 TXT CTV-55N11 TXT CTV-55D10 TXT CTV-55X10 TXT CTV-55V20 TXT MkII CTV-55Z10 TXT MkIII...
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Page 3: Table Of Contents
Contents Safety Notice------------------------------------------------------------------------- 2 Technical specification-------------------------------------------------------------- 3 Chassis Block Diagram------------------------------------------------------------- IC Block Diagram -------------------------------------------------------------------- 5-8 - TRANSISTOR MARK -------------------------------------------------------------- PCB Top/Bottom layer ------------------------------------------------------------- 10 - Service Adjustments ---------------------------------------------------------------- 3 22 Purity and Convergence Adjustment--------------------------------------------- Control Location --------------------------------------------------------------------- Input and Output Terminals--------------------------------------------------------- Operation Instructions-------------------------------------------------------------- Mechanical Disassemblies--------------------------------------------------------- Circuit Diagram-----------------------------------------------------------------------... -
Page 4: Specifications
SPECIFICATIONS Receiving System : BG / DK / I / M Colour System : PAL / SECAM / NTSC Picture Tube : 54cm (21") diagonal Ext. Antenna : 75 Ohm Coaxial Cable Ext. In/Out : Audio/video -in/out Speaker : 8 Ohm(5W) x2 Audio Output(MAX) : 1KHZ 0.5Vrms, 5Wx2 10% THD Audio Output Power... -
Page 5: Chassis Block Diagram
Chassis Block Diagram... -
Page 6: Ic Block Diagram
IC BLOCK DIAGRAM IC 101 (2Channel Audio Amplifier) TFA9842AJ... - Page 7 IC BLOCK DIAGRAM IC 401 (Vertical Deflection Booster) STV9302A IC 601 (Power Switch) F SCQ0765RT...
- Page 8 IC BLOCK DIAGRAM IC 602 (Photo Transistor ) TLP421 TLP421 1:ANODE 2:CATHODE 3:EMITTER 4:COLLECTOR IC 652 (Regulators) L7808Series REFERENCE VOLTAGE INPUT SERIES OUTPUT PASS ELEMENT CURRENT GENERATOR PROTECTION ERROR REFERENCE STARTING AMPLIFIER VOLTAGE CIRCUIT THERRMAL PROTECTION...
- Page 9 IC BLOCK DIAGRAM IC 701 ( TV Signal Processor) TDA9381...
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Page 10: Transistor Mark
TRANSISTOR MARK 2DD2499 INPUT INPUT OUTPUT INPUT GND OUTPUT... - Page 11 MAIN PCB Top Layer -10-...
- Page 12 MAIN PCB BOTTOM Layer 11 -...
- Page 13 CRT,SIDE AV&CONTROL PCB TOP LAYER CRT PCB LAYER SIDE AV PCB TOP LAYER CONTROL PCB TOP LAYER 1 - - 2...
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Page 14: Service Adjustments
Service Adjustments " "... - Page 15 Service Adjustments 3P51 ADJUST MENU 1.FACTORY MODE: (1)Assembly line adjust mode: Press S.M., keys in turn to enter (DISPLAY) and this mode. (2)Engineer adjust mode: Press CLOCK, P.M. and keys in turn to enter this mode. This mode is usually for R&D and engineering department use. (3)Press digital keys to enter every adjust page, use PROG+/- keys to pick adjust items, use VOL+/- keys to adjust the value.
- Page 16 Service Adjustments (4)VERTICAL&YUV/RGB HORIZON ADJUST(KEY2 ): 5VSL 50HZ vertical linearity 5SCL 50Hz vertical slope correction 5VSH 50Hz vertical center 5VAM 50Hz vertical size 6VSL 60HZ vertical linearity 6SCL 60HZ vertical slope correction 6VSH 60HZ vertical center 6VAM 60HZ vertical size a.
- Page 17 Service Adjustments press key “4” and select AGC item by PROG+/-. 4-3-3 Adjust “VOL+” and “VOL-“ keys to obtain 2.4V Digital voltage meter reading or just no NOISE on screen。 ” to exit factory mode！ 。 Press key “ 5、 E2PROM INITIALIZTION (1) E2PROM initialization (KEY 8 )：...
- Page 18 Service Adjustments .Item Storage Display Range (Index | value) Default address string value Drect key “0” Screen Voltage A level bright line Adjust the screen voltage under Tv standard mode and no signal Instruction input，just can see the line is ok。 Drect key “1”...
- Page 19 Service Adjustments .Item Storage Display Range (Index | value) Default address string value Vertical zoom 0-63 Adjust this item when lack of vertical amplitude will lead to the Instruction picture can’t be full of the screen,then need to adjust the resistance’s(R318,R319) value.
- Page 20 Service Adjustments .Item Storage Display Range (Index | value) Default address string value Adjust "HDOL" can change the voltage of “R.G.B”obviously,but adjust too high may lead to fade badly,reverse maybe lead to lack Instruction of luminance,so should be careful。Generally it's ok when there is no black screen or picture faded change the channel under the maximal beam current 0.7X...
- Page 21 Service Adjustments .Item Storage Display Range (Index | value) Default address string value Teletext Vertical position 50Hz 5TYM 0-63 Teletext Vertical position 60Hz 6TYM 0-63 Instruction Direct Key “5” NVM option 1 VG2 Alignment mode Bit 0 VG2 is usually set to 0.Receive 49.75MHZ PHILIPS signal. press key "PM"...
- Page 22 Service Adjustments .Item Storage Display Range (Index | value) Default address string value Geometry control Bit 2 Logo Bit 3 EHT tracking mode Bit 4 Vertical Vert. & EW Search tuing mode sensitivity Bit 5 Normal Reduced Menu half-tone Bit 6 Zoom function Bit 7 NVM option 5...
- Page 23 Service Adjustments .Item Storage Display Range (Index | value) Default address string value NICAM control NICA RGB Control YUV Control NTSC-M Control Direct Key “CLOCK” English letter & number Logo edit (7 chars. & 2 lines) Logo Text The LOGO edit function will take effect when Bit3 in OP4 set 1， Instruction press key ‘VOL+/-“...
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Page 24: Purity And Convergence Adjustment
Purity and Convergence Adjustment COLOR PURITY ADJUSTMENT (1) Before color purity adjustment,warm up the TV set over 15 minutes and fully degauss. (2) Receive pure white signal in AV status and set the TV receiver dynamic. (3) Go to factory mod MENU2. After write down the values of R-BIAS and B-BIAS, set the values of R- BIAS and B-BIAS zero. -
Page 25: Control Location
Control Location CONTROL LOCATION CONTROL LOCATION 1. Remote Sensor 2. Power Indicator 3. Main Switch 4. Speakers 5. Program Down & Up Button 6. Volume Down & Up Button 7. Menu Button 8. AV/TV Button 9. Front AV In (Option) 10. -
Page 26: Input And Output Terminals
Input and Output Terminals INPUT AND OUTPUT TERMINALS YCbCr IN AV OUT AV IN 1 S-VIDEO AUDIO AUDIO VIDEO VIDEO NOTE For Australia only - Install an external aerial conforming to AS 1417.1 for safety purpose. Precautions when connecting to other equipment When using external equipment with this TV set, please read the instruction manual for the external equipment. -
Page 27: Operation Instructions
Operation Instructions OPERATION INSTRUCTIONS WARNING: The main power switch ( No.1 of the control location page ) is the manually operated mechanical switc . The remote control can not cut off power supply to the TV set. For safety purpose, push main switch to the OFF position and make sure the power indicator go out when not use for long time. - Page 28 Operation Instructions OPERATION INSTRUCTIONS TIMERS 1.CLOCK Select hour or minute with PROG+/- buttons or (GREEN) / (BLUE) buttons TIME Adjust CLOCK time with VOL+/- buttons or (RED) / (YELLOW) buttons CLOCK --:-- You can press CLOCK buttons to display currently clock time. ON TIME --:-- ON PROG...
- Page 29 Operation Instructions OPERATION INSTRUCTIONS TUNE MENU You can select the item by press the PROG+/- buttons or the (GREEN) / (BLUE) buttons, move to the menu you select and then do as follows. TUNE 1.COLOUR SYS COLOUR SYS AUTO Press VOL+/- buttons or (RED) / (YELLOW) buttons to set the colour SOUND SYS BAND VHF-L...
- Page 30 Operation Instructions LOCATION OF CONTROL (REMOTE HANDSET UNIT) STAND BY BUTTON ( Press this button to turn the TV on/off. Press any Number Button or Program Up/Down Button, picture and sound will appear on within a few seconds. SLEEP BUTTON( This key is used to set the sleep timer from in 10 minutes step up to three hours.
- Page 31 Operation Instructions LOCATION OF CONTROL (REMOTE HANDSET UNIT) VOLUME UP/DOWN BUTTONS (VOL.+/-) Press Volume Up/Down Buttons to adjust sound level. PROGRAM SELECTION BUTTONS(0-9) Push the number for your desired program and the program indicator will be displayed on the screen. Press number key 0-199 for program selection.
- Page 32 Operation Instructions LOCATION OF CONTROL (REMOTE HANDSET UNIT)(TELETEXT OPTION) MENU BUTTON(MENU/INDEX) In TV mode, this button is used as MENU command; in TELETEXT mode, used as INDEX key. MENU: To use MENU button for the turning procedure, please refer to page 7-10 for the details. INDEX: Press INDEX button to obtain the index page.
- Page 33 Operation Instructions LOCATION OF CONTROL (REMOTE HANDSET UNIT)(TELETEXT OPTION) GAME BUTTON(GAME/SUB.TITLE) In TV mode, used as GAME command; In TELETEXT mode, used as SUB.TITLE key. GAME: You can play the game on TV . To speed up with PRGO-, transform with PRGO+. Shift left with VOL- ,shift right with VOL+.
- Page 34 Operation Instructions BATTERY INSTALLATION (REMOTE CONTROL UNIT) 1. Remove the battery cover. 2. Insert the 2 UM4 - AAA 1.5V batteries making sure the polarity (+ or -) of the batteries matches the polarity marks inside the unit. 3. Replace the battery cover. Replace with new batteries when the TV set begins to show the following symptoms: Operation is unsteady or erratic.
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Page 35: Mechanical Disassemblies
Mechanical Disassemblies CABINET BACK REMOVAL CHASSIS REMOVAL 1. Refer to Figure 1,remove 10 screws. 1. Remove cabinet back. 2. Pull off cabinet back and remove. 2. Discharge the picture tube anode(2nd anode lead) to the dag coating (picture tube grounding lead). 3.