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Panasonic WV-CM1020 Service Manual
Panasonic WV-CM1020 Service Manual

Panasonic WV-CM1020 Service Manual

Video monitor
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SPECIFICATIONS
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 :
Weights and dimensions shown are approximate.
Specifications are subject to change without notice.
OPTIONAL ACCESSORY
Rack Mount Bracket ......................................................... WV-Q52AE
PO WE R
INP UT
ON
A
OFF
Vid eo Mo nit
ME NU
AU DIO
or W V- CM
B
+
220 - 240 V AC, 50 Hz
Approx. 47 W
250 mm (9-13/16") diagonal tube screen size, 90˚ deflection
223 mm (8-3/4") diagonal actual visual size
300 TV lines at center
1.0 V[p-p] composite/75 Ω, BNC with Auto Termination
–8 dB/Hi-z, RCA standard jack
0.5 W
Horizontal: Less than 5 %
Vertical:
Less than 5%
Less than 2 %
Less than 90 %
–10˚C - +50˚C (14˚F – 122˚F)
220(W) x 220 (H) x 309(D)mm [8-11/16"(W)x8-11/16"(H)x12-3/16"(D)]
6.5 kg (14.3 lbs.)
C 2 0 0 0 M a t s u s h i t a C o m m u n i c a t i o n I n d u s t r i a l C o . , L t d .
A l l r i g h t s r e s e r v e d . U n a u t h o r i z e d c o p y i n g a n d
d i s t r i b u t i o n i s a v i o l a t i o n o f l a w .
ORDER NO. AVS0002229C8
Video Monitor
WV-CM1020

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Summary of Contents for Panasonic WV-CM1020

  • Page 1 ORDER NO. AVS0002229C8 Video Monitor WV-CM1020 PO WE R INP UT Vid eo Mo nit ME NU AU DIO or W V- CM – SPECIFICATIONS Power Source : 220 - 240 V AC, 50 Hz Power Consumption : Approx. 47 W Screen Size : 250 mm (9-13/16”) diagonal tube screen size, 90˚...
  • Page 2 Y WARNING This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians.
  • Page 3: Table Of Contents

    CONTENTS Major Operating Controls and Their Functions ..........1 Adjustment Procedure .
  • Page 4: Major Operating Controls And Their Functions

    MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS FOCUS VIDEO B VIDEO A AUDIO AC IN Video Monitor WV-CM POWER INPUT AUDIO – MENU !3 !4 q Power Switch (POWER, ON/OFF) u Focus Control (FOCUS) This is a push-push type switch which turns the power of This control adjusts the screen focus.
  • Page 5: Adjustment Procedure

    Fig 3-1 White Raster Signal Connect the coaxial cable between Video Input Connector Red, Green, Blue each Raster Signal of the WV-CM1020 and Video Output Connector of Video Monoscope Pattern Signal Generator Signal Generator. Audio Analyzer The Fig. 3-2 shows the connecting diagram for the Audio Oscilloscope section adjustment procedure.
  • Page 6 < Service Menu > Press the MENU Button once, and enter to the ADJ Turn the Power Switch on while pressing the Increment MENU. Button (+), the Decrement Button (–) and the MENU The ADJ MENU is as shown in Fig. 3-6. Button simultaneously, and enter to the Service Menu mode.
  • Page 7 (2). Screen Cut off Coarse Adjustment Test Point: TP802 (G) CRT Board Adjust: CUTOFF G Increment Button (+) Decrement Button (–) 40 Vp-p SCREEN Control Flyback Transformer on the Main Board Turn the Power Switch on while pressing the Increment Button (+), the Decrement Button (–) and the MENU Fig.
  • Page 8 Adjust the Increment Button (+) or Decrement Button (–) (8). Screen Cut off Fine Adjustment so that the screen is set to the horizontal center position. Test Point: TP802 (G) CRT Board Repeat above adjustment until they are satisfied. Adjust: STD BRIGHT Increment Button (+) Decrement Button (–)
  • Page 9 (10). Focus Coarse Adjustment Move the deflection coil forward until the red colour fully occupies the entire screen and tighten the screws that Adjust: FOCUS control secure the deflection coil. Flyback Transformer on the Main Board Observe: Colour Video Monitor (12).
  • Page 10 Select the Cursor Buttons (i) or (o) to the STD BRIGHT position. Adjust the Increment Button (+) or Decrement Button (–) so that the first step from the black side is just suppressed. Select the MENU Button to the DEF MENU. Select the Cursor Buttons (i) or (o) to the ABL IN position for saving data.
  • Page 11: Location Of Test Points And Adjusting Controls

    LOCATION OF TEST POINTS AND ADJUSTING CONTROLS MAIN BOARD (COMPONENT SIDE) SW901 (POWER SW) CN901 (INLET) CN902 T901 (SW TRANS) SW101 (A/B INPUT SW) Q112 SW305 (MENU) JK601 SW301 (PIN JACK) (UP) SW302 (DOWN) CN101 SW304 (BNC) (–) SW303 ( +) CN102 (BNC) Q118...
  • Page 12: Block Diagram

    BLOCK DIAGRAM MAIN BOARD J101 (PAL ONLY) TP801 IC102 (PAL ONLY) Q801 BASEBAND DELAY LINE FOR 1H DELAY OUTPUT CN101 (NTSC ONLY) Q112 BUFFER TP802 V801 VIDEO A Q209-212,L204 R-Y IN SIGNAL CATHODE Q802 PRE-AMP. CLAMPING VIDEO INPUT/OUTPUT RAY TUBE R-Y OUT BUFFER LINE...
  • Page 13: Schematic Diagram

    SCHEMATIC DIAGRAM MAIN BOARD < VOLTAGE > ∗ MAIN BOARD J101 IC101 IC102 IC301 IC303 IC304 IC401 IC601 IC901 IC601 AUDIO OUTPUT CONTROLLER Pin 1 12.9 ∗ ∗ ∗ (PAL ONLY) (NTSC ONLY) (NTSC ONLY) VR201 JK601 IC102 COMB-1 BASEBAND DELAY LINE FOR 1H DELAY +12V AUDIO C105 100/10...
  • Page 14: Conductor View

    CONDUCTOR VIEW AUDIO VIDEO A VIDEO B TO POWER CABLE(E1) (E914: IN/OUT IN/OUT IN/OUT CN901 AC IN MAIN BOARD MAIN BOARD (COMPONENT SIDE) (PATTERN SIDE) YWVM1910L09) (E904:K4DJD0000016) CRT BOARD E904 . . .CN801 HV(ANODE) : TO CRT (V801) FOCUS : TO CRT BOARD .
  • Page 15: Exploded View

    Bindign Head Tapping Screws Serial No. Label XTB4+20AFX Bindign Head Tapping Screws XWC3BFN Internal Toothed Lock Washer XWC4BFN Internal Toothed Lock Washers XWG4FX Round Plain Washers PCB1 PACKAGING M41,M42 E1,M43 E804 L401 V801 WV-CM1020 PCB2 SP601 E601 – 12 –...
  • Page 16: Replacement Parts List

    Q302 B1GBCFNL0001 Transistor Q303 DTC144TKAT46 Transistor YWA2LA0070A4 Joint YWV5EA2394A1 Upper Cover Q304 DTC143ZKAT46 Transistor YWV7QA5260A4 Main Label for WV-CM1020/B Q501 2SC3468-DE Transistor Y B1GARRAM0001 YWV7QA5261A4 Main Label for WV-CM1020/G Q502 Transistor –––––––––––––– BEAB Label for WV-CM1020/B Q503,504 2SC2412K-T46 Transistor YWV7MA1091A4...
  • Page 17 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION D306 B0BC5R000002 Diode R154 ERDS2TJ561T Carbon 560 ohms 1/4W D307-310 YW1SS355T7 Diode R155 ERDS2TJ331T Carbon 330 ohms 1/4W D311,312 B0BC5R600003 Diode R156 ERDS2TJ181T Carbon 180 ohms 1/4W D402 YW1T2TA Diode R158 ERJ6GEYJ684V Carbon...
  • Page 18 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION Y ERQ14AJ6R8P R350 ERJ6GEYJ471V Carbon 470 ohms 1/10W R616 Fuse Resistor 6.8 ohms 1/4W Y ERC12ZGM225 R351 ERJ6GEYJ154V Carbon 150K ohms 1/10W R901 Solid 2.2M ohms 1/2W Y ERC12ZGM156 R355 ERDS2TJ101T Carbon 100 ohms 1/4W...
  • Page 19 REF. NO. PART NO. DESCRIPTION REF. NO. PART NO. DESCRIPTION C145 MCUV1E104KBN Ceramic 0.1 µF C601 EEUEB1H1R0SB Electrolytic 1 µF 50V C146 YF400223XKT Ceramic 0.022 µF C606 EEUEB1E101B Electrolytic 100 µF 25V C147 EEUEB1H2R2SB Electrolytic 2.2 µF 50V C607 F1J1H272A400 Ceramic 2700 pF C149...
  • Page 20 YW49USPACER Insulator Crystal Spacer E501 K1PC05D00001 Wire Assy for CRT Board CN805 E901 YWSK0279 Fuse Holder Y YWSP60VVF20 AC Power Cable Assy for WV-CM1020/B E902 YWSK0280 Fuse Holder YWACP45G AC Power Cable Assy for WV-CM1020/G Y YWV8QA5238AN Operating Instructions E904...
  • Page 21 Printed in Japan C-742 N N 5, 7, 23...