Panasonic WV-CK1420 Service Manual

Colour monitor

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WV-CK1420
SPECIFICATIONS
WV-CK1420
Power Source :
Power Consumption :
Screen Size :
Horizontal Resolution :
Video Input :
Audio Input :
Speaker Output :
Sweep Linearity :
Sweep Geometry :
Ambient Operating Humidity :
Ambient Operating Temperature :
Dimensions :
Weight :
WV-CK2020
Power Source :
Power Consumption :
Screen Size :
Horizontal Resolution :
Video Input :
WV-CK1420/WV-CK2020
220 - 240V AC, 50Hz
Approx. 66W
371.8mm diagonal tube screen size, 90° deflection
335.4mm diagonal actual visual size
330TV lines at centre
1.0V[p-p] composite/75Ω, BNC with Auto Termination
–8dB/Hi-z, RCA standard jack
0.7W
Horizontal: Less than 5%
Vertical: Less than 5%
Less than 2%
Less than 90%
–10°C - +50°C (14°F - 122°F)
366(W) x 346(H) x 365(D)mm [14-7/16"(W) x 13-10/16"(H) x 14-6/16"(D)]
9.6kg (21.2lbs.)
220 - 240V AC, 50Hz
Approx. 80W
548mm diagonal tube screen size, 90° deflection
508mm diagonal actual visual size
500TV lines at centre
1.0V[p-p] composite/75Ω, BNC with Auto Termination
WV-CK2020
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ORDER NO. AVS9911206C8
Colour Monitor
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Summary of Contents for Panasonic WV-CK1420

  • Page 1 ORDER NO. AVS9911206C8 Colour Monitor WV-CK1420/WV-CK2020 WV-CK1420 WV-CK2020 SPECIFICATIONS WV-CK1420 Power Source : 220 - 240V AC, 50Hz Power Consumption : Approx. 66W Screen Size : 371.8mm diagonal tube screen size, 90° deflection 335.4mm diagonal actual visual size Horizontal Resolution :...
  • Page 2: Table Of Contents

    WV-CK1420 ........
  • Page 3: Major Operating Controls And Their Functions

    MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS WV-CK1420 AUDIO VIDEO 1420 OUT IN Color Monitor WV-CK POWER –AUDIO+ MENU –LEVEL+ 1. Power Switch (POWER, ON/OFF) 7. Audio Input Connector (AUDIO IN) This is a push-push type switch which turns the power For input of audio signal from an outboard device.
  • Page 4 WV-CK2020 2020 AUDIO VIDEO Color Monitor WV-CK POWER OUT IN –AUDIO+ MENU –LEVEL+ 1. Power Switch (POWER, ON/OFF) 7. Audio Output Connector (AUDIO OUT) This is a push-push type switch which turns the power The audio input signal connected to the audio input connector i is looped through to this connector.
  • Page 5: Adjustment Procedure

    WV-CK2020 Referring to Fig. 2-3, remove one screw that secure the The following equipments are required for adjustment of Cord Holder and remove the Cord Holder. WV-CK1420 and WV-CK2020 Colour Video Monitors. Oscilloscope Digital Voltmeter TV Signal Generator Degaussing Coil Tamper Proof Screwdriver 2.
  • Page 6 3. Adjustment Flowchart The Fig. 3-1 shows the Adjustment Flowchart. START Normal Mode Enter to Factory Mode by shorting at once between FA1 and ground, the Yellow "CHK" Character will be appeared on the Screen. Pressing Level Control + Button so that the Screen changes to the White and changes to the Transparency after aging.
  • Page 7 Short between FA1 and ground at once to set the 4. Connection And Setting Up FACTORY Mode, the Yellow "CHK" Character will be 4.1. Connection displayed on the Screen, and press the LEVEL CONTROL (+) Button the Screen changes to the White. The Fig.
  • Page 8 5. Adjustment Procedure Adjust SUB COLOUR so that the Colour Output signal becomes 29 ± 1 Vp-p for WV-CK1420/B, 36 ± 1 Vp-p for Refer to the Location of the Test Points and Adjusting WV-CK1420/G, 32 ± 1 Vp-p for WV-CK2020/B and 38 ± 1 Controls on page 9.
  • Page 9 White). Adjust the SUB BRIGHT so that the voltage at the pin 3 of Deflection Coil Fixing Screw Purity Magnet for WV-CK1420 A11 becomes 2.2 ± 0.05 V DC as shown in Fig. 5-4. (Convergence Magnet-1 for WV-CK2020) Convergence Magnet-1 for WV-CK1420...
  • Page 10 Adjust SUB BRIGHT Data so that the second portion becomes slightly lit as shown in Fig. 5-6. 140 ± 2 V for WV-CK1420 160 ± 2 V for WV-CK2020 Adjust center of scanning periode. Fig. 5-5 Adjust the Sub-Bright so that the second Turn the SCREEN Control slowly, and fix the green portion becomes slightly lit.
  • Page 11: Location Of Test Points And Adjusting Controls

    LOCATION OF TEST POINTS AND ADJUSTING CONTROLS MAIN BOARD (COMPONENT SIDE) S801 (Power Switch) S1106 (Audio Control – Button) S1105 (Audio Control + Button) S1103 (Menu Button) S1104 (Level Control – Button) S1101 (Level Control + Button) TPE3 D504 FA1 – FA2 : Factory Mode FA3 –...
  • Page 12: Block Diagram

    FAST BLK T550 BLUE B-IN D870 Q549 D580 CRT SOCKET BOARD GREEN G-IN AMP. H-OUT R-IN Q548 B. CLP MUTE P.MUTE Q353 (WV-CK1420) Q354 (WV-CK2020) Video Input B-OUT BUFFER EXT-IN Q352 TPY1 Connector CHROMA-IN G-OUT BUFFER Q351 Y-SW OUT Video Q160...
  • Page 13: Schematic Diagram

    C840 250V D801 POWER R861 3.3 2W R862 6.2 2W 100 1/4W Q351 C351 2200P 2KV (DEG) SWITCH ∗ +170V : WV-CK1420 – ∗ +9V REGULATOR CN12(A12) +180V : WV-CK2020 R369 R863 (TPY1) R355 ∗ FLYBACK TRANSFORMER 3.3 2W IC851...
  • Page 14: Conductor View

    CONDUCTOR VIEW CRT SOCKET BOARD (COMPONENT SIDE) (PATTERN SIDE) (COMPONENT SIDE) MAIN BOARD MAIN BOARD (PATTERN SIDE) LED BOARD (COMPONENT SIDE) DEGAUSSING COIL < INDEX > < INDEX > < INDEX > MAIN BOARD CRT SOCKET BOARD LED BOARD IC401 C2 IC1105 C3 Q580 B8 Q1145 D6...
  • Page 15: Wv-Ck1420

    EXPLODED VIEW OF WV-CK1420 Numbers show screws, washers, nuts and etc. Screws Description Serial No. Label XTB4+15FN Pan Head Screw and Washer Assy XTW3+12JFX Pan Head Screw and Washer Assy XTB4+20FX Binding Head Tapping Screws XTB4+15FX Binding Head Tapping Screws...
  • Page 16: Wv-Ck2020

    EXPLODED VIEW OF WV-CK2020 Numbers show screws, washers, nuts and etc. Screws Description Serial No. Label XTB4+12FX Binding Head Tapping Screws XTW3+12JFX Pan Head Screw and Washer Assy XTB4+20FX Binding Head Tapping Screws XTB4+15FX Binding Head Tapping Screws XYN3+10FX Pan Head Screw and Washer Assy XTW3+8JFX Wahser Head Tapping Screws E101...
  • Page 17: Replacement Parts List

    Purity Magnet Assy IC801 SE090NLF4 EAS65P309T Speaker IC850 AN78M05 CK14201AWPB Wire Assy for Speaker IC851 AN78M09 E101 TSX4C1A013B AC Power Cord Assy for WV-CK1420/B IC852 AN78M05 TSX4C1A013G AC Power Cord Assy for WV-CK1420/G IC1101 MN1871681TG E102 FBTFS2831-2 Wire Assy IC1102 S24C02ADP-P TKK4C1A032A...
  • Page 18 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION D802 D4SB80 Diode R455 ERJ6GEYJ221 Carbon 220 ohms 1/10W D803 MA4120-M Diode R501 ERQ12HJ1R0 Fuse Resistor 1 ohm 1/12W D804 YWD1NL20U Diode R502 ERQ12ZJ1R0 Fuse Resistor 1 ohm 1/12W D805 MA4150M Diode R503...
  • Page 19 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION R810 ERDS2TJ123 Carbon 12K ohms 1/4W R2310 ERDS2TJ4R7 Carbon 4.7 ohms 1/4W R811 ERD50FJ182 Carbon 1.8K ohms 1/4W R2311 ERQ2CJP100S Fuse Resistor 10 ohms 20W R812 ERDS2TJ751 Carbon 750 ohms 1/4W R2312 ERDS2TJ222 Carbon...
  • Page 20 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION C521 ECUV1H332KBN Ceramic 3300 pF C825 ECKW3D102KB Ceramic 1000 pF C522 ECQM1H822KZ Polyester 8200 pF 50V C828 ECA1EHG331B Electrolytic 330 µF 25V C525 ECEA1HTK3R3B Electrolytic 3.3 µF 50V C830 ECEA0JTK101B Electrolytic 100 µF 6.3V C526...
  • Page 21 Y TQB4C1A188 Operating Instructions TPE4C1A00201 Polyethylene Bag TPE4C1A012 Polyethylene Sheet TPD4C1A002B Pad Complete TPC4C1A23301 Packing Case (IN) for WV-CK1420/B TPC4C1A23302 Packing Case (IN) for WV-CK1420/G TPC4C1A23801 Packing Case (OUT) for WV-CK1420/B TPC4C1A23802 Packing Case (OUT) for WV-CK1420/G TQF4C1A061 Bar Code Label...
  • Page 22 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION COLOUR MONITOR WV-CK2020 MAIN BOARD MISCELLANEOUS PCB1(RTL) CK2020-B-CMA Printed Circuit Board Assy for WV-CK2020/B CK2020-G-CMA Printed Circuit Board Assy CRT1 A51AEZ90X15K 21'' Cathode Ray Tube for WV-CK2020/G TLK4C9012A Degaussing Coil IC401 LA7840 CK2020-DY...
  • Page 23 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION D805 MA4150M Diode R502 ERQ12ZJ1R0 Fuse Resistor 1 ohm 1/2W D806 MA4051-H Diode R503 ERO25TKF1783 Metal 178K ohms 1/4W D815,816 YWD1NL20U Diode R504 ERJ6GEYJ223 Carbon 22K ohms 1/10W D817 YWS2L60V61 Diode R510 ERJ6GEYJ563...
  • Page 24 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION R815 ERG2ANJ470 Metal 47 ohms 2W R2320 ERJ6GEYJ102 Carbon 1K ohms 1/10W R816 ERG2ANJ102 Metal 1K ohms 2W R2321 ERJ6GEYJ823 Carbon 82K ohms 1/10W R817 ERDS1TJ222 Carbon 2.2K ohms 1/2W R2322 ERJ6GEYJ183 Carbon...
  • Page 25 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION C552 ECWH12H153JS Polypropylene 0.015 µF C853 ECA1HHG471E Electrolytic 470 µF 50V C553 ECQM4223JZB Plastic 0.022 µF C854 ECA1CHG100B Electrolytic 10 µF 16V C555 ECQM4273JZB Plastic 0.027 µF C858 ECQM1H473JV3 Plastic 0.047 µF C559 ECQF2H824JZA...
  • Page 26 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION L611 TSKA075 Coil CRT SOCKET BOARD L612 ELEP4CJR47KA Coil 0.47 µH L620 TSKA077 Coil L640-642 TL0ABTA100K Peaking Coil PCB2 (RTL) CK2020-G-CMC Printed Circuit Board Assy L801 ELF18D666P Line Filter Q351,352 2SC2258 Transistor Q354...

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