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Related Manuals for Wells-Gardner D9300 Series
Summary of Contents for Wells-Gardner D9300 Series
- Page 1 Wells-Gardner Electronics Corporation Service Manual for D9300 Series Digital-Control Color Monitor Wells-Gardner Electronics 5500W. 55 Street Suite A Mc,Cook Illinois 60525-3605 (708) 290-2100 069X3045-100 ECN: E01024 Date: 8-18-00 Printed on 03/20/03...
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Page 2: Table Of Contents
Wells-Gardner Electronics Corporation SAFETY PRECAUTION……………………………… 1 SPECIFICATION……………………………………… 2 TECHNCIAL FEATURES……………………………. 3 TIMING CHART………………………………………. 4 SET UP………………………………………………….. 6 CONTROLS AND ADJUSTMENT…………………... 7 ADJUSTMENT SPECIFICATION…………………… 12 DESCRIPTION OF CIRCUIT OPERATION………...17 TROUBLE SHOOTING……………………………….. 21 INDEX... -
Page 3: Safety Precaution
Wells-Gardner Electronics Corporation SAFETY PRECAUTION: WARNING: Service should not be attempted by anyone unfamiliar with the necessary precautions on this unit. The following precautions are necessary during servicing. Some parts, such as a picture tube in this unit, have special safety-related characteristics for X-RAY RADIATION protection. -
Page 4: Specification
Wells-Gardner Electronics Corporation SPECIFICATION: 2-1 Picture Tube. Size: 18V Dot Pitch: .25mm 2-2 Signal Input. Video Input: Analog, Positive Signal (0.7V p-p) Horizontal Sync: TTL Level, Positive or Negative Pulse Scanning : 28 KHz-70KHz Vertical Input: TTL Level, Positive or Negative pulse Scanning : 40-160Hz 2-3 Power Supply. -
Page 5: Techncial Features
Wells-Gardner Electronics Corporation TECHNICAL FEATURES: Microprocessor control with OSD (On screen display menu). Microprocessor recognizes the input computer signal and signal output from the customer control board connected to the main board by a flat cable. Universal AC Input Voltage. -
Page 6: Timing Chart
Wells-Gardner Electronics Corporation TIMING CHART: Factory Pre-Set Timing Modes. Horizontal and Vertical Timing Diagram for Table 1 QUANTUM 801GX MVP-NSW FORMAT MODE 1 DESCRIPTION 640*400 29.63Hz 33.75µs 1.76µs 3.52µs 26.67µs 1.86µs POL. POSITIVE 62.91Hz 15.88ms 0.0338ms 1.680ms 13.56ms 0.675ms POL. - Page 7 Wells-Gardner Electronics Corporation QUANTUM 801GX VG900602 FORMAT MODE 5, S-VGA DESCRIPTION VESA 680*480 37.500KHz 26.667us 2.032us 3.810us 20.317us 0.508us POL. NEGETIVE 75.00Hz 13.333ms 0.080ms .427ms 12.800ms 0.027ms POL. NEGETIVE VIDEO ANALOG QUANTUM 801GX DMT8085 FORMAT MODE 10 DESCRIPTION VESA 800*600 53.674KHz...
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Page 8: Set Up
Wells-Gardner Electronics Corporation SET UP: Setting up your monitor is easy. All you have to do is make a few simple connections and adjustments. The procedure is as follows: Start Up. Your monitor starts up automatically when you insert the power plug to power source. -
Page 9: Controls And Adjustment
Wells-Gardner Electronics Corporation CONTROLS AND ADJUSTMENTS: There are four switches on the control panel. Adjustable controls allow the best display status for individual requirements. 6-1. Key Function. 1. MODE/EXIT MODE – Call the Main-Menu OSD 2. SEL / Degauss SEL – Call the Sub-Menu OSD Degauss –... - Page 10 Wells-Gardner Electronics Corporation 6-3. OSD Controls - User’s control. A. BRIGHTNESS ADJUSTMENT. 1) Press the “MODE” key then Main-Menu OSD comes out as figure on next page. 2) Search “BRIGHTNESS” sub-menu using “UP/DOWN” key on the Main-Menu OSD. 3) Select the “BRIGHTNESS” by pressing “SEL” key. The “BRIGHTNESS” OSD color changes from yellow to red.
- Page 11 Wells-Gardner Electronics Corporation A. BRIGHTNESS ADJUSTMENT CONTRAST ADJUST H. POSITION ADJUST H. SIZE ADJUST V. POSITION ADJUST V. SIZE ADJUST PINCUSHION ADJUST TRAPEZOID ADJUST PARRALLELOG ADJUST PIN BALANCE ADJUST SAME ABOVE SAME ABOVE SAME ABOVE SAME ABOVE SAME ABOVE SAME ABOVE...
- Page 12 Wells-Gardner Electronics Corporation 6-3 OSD Controls (continued): COLOR ADJUSTMENT 1) Press the “MODE” to show the Main-Menu OSD as shown by the left-below figure. 2) Search the “COLOR” sub-menu using “UP/DOWN” key on the Main-Menu OSD. 3) SELECT the “COLOR” by pressing “SEL” key. The color Sub-Menu OSD appears as shown by the right-below figure.
- Page 13 Wells-Gardner Electronics Corporation RECALL. When the “RECALL” key is pressed, all user’s adjustment values are changed to the factory values. LANGUAGE. The menu is available in four languages. 1. Press the “MODE” key and the Main-Menu OSD will appear as in the previous figure.
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Page 14: Adjustment Specification
Wells-Gardner Electronics Corporation ADJUSTMENT SPECIFICATION: 7-1. Adjustment Sequence: The monitor requires a min. of 15 minutes warm up time before adjustment. 7-2. Adjustment Sequence: FBT B+ Voltage → G2 Voltage → Hor. Center → Hor. Size → Hor. Position → Ver. Size →... - Page 15 Wells-Gardner Electronics Corporation 7-3.5 Purity and Convergence Adjustment. (If Required) A. Purity Adjustment. 1. Demagnetize the picture tube and cabinet using a degaussing coil. 2. Turn the CONTRAST and BRIGHTNESS controls to maximum. 3. In User Color Menu, adjust RED and BLUE controls to provide only a green raster 4.
- Page 16 Wells-Gardner Electronics Corporation 7-3.6 White Balance adjustment (video). 1. Warm up the unit for 15 minutes 2. Input the window pattern with 31KHz 640*480 mode. 3. Adjust the color temperature to be X=0.285+/-0.015 and Y=0.293+/-0.015 by R.G.B. gain on User Color Menu or User Preference.
- Page 17 Wells-Gardner Electronics Corporation B. Exit and save. (Save is automatic) 1. After finishing adjustments, select “RECALL” using “UP/DOWN” key. Press “SEL” key until OSD disappears. The adjusted value is saved and exits from the factory mode. C. Adjustment. All adjustment methods are same as user’s control mode except “COLOR”...
- Page 18 Wells-Gardner Electronics Corporation B. Color Adjustment...
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Page 19: Description Of Circuit Operation
Wells-Gardner Electronics Corporation 8.DESCRIPTION OF CIRCUIT OPERATION: 8-1. Mode Control. 8-1.1 H-Sync is inputted to pin 30 of IC601, V-Sync to pin 29 of IC601 for each mode and pin 27, 26 of IC601 output always positive polarity sync. 8-1.2 The outputs from IC601 are as below (See table below) - Page 20 Wells-Gardner Electronics Corporation Deflection Processor (IC301): 8-2.1 Horizontal section. 8-2.1.2 Horizontal Oscillation. Horizontal free frequency is set to 48KHz by R314 and C347. Auto-sync processing can be done from 28KHz to 70KHz by means of IC301 without any adjustment. 8-2.1.3 Phase Shift.
- Page 21 Wells-Gardner Electronics Corporation 8-2.2.4 East-west parabola. A parabola wave-form is available on pin 24 of IC301 for driving the pincushion correction stage. Amplitude of parabola waveform is controlled by IC601 using I²C. 8-2.3 B+ Regulator. B+ PWM regulator output is available on pin 28 of IC301 for driving the B+ control stage.
- Page 22 Wells-Gardner Electronics Corporation Q317, Q318 are off when horizontal frequency is 53KHz 61KHz Q316, Q317, Q318 is off when horizontal frequency is 62KHz 70KHz FBT (Flyback Transformer): The high voltage for CRT anode focus, G2 voltage for CRT and – 12V for vertical deflection are generated by the FBT.
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Page 23: Troubleshooting
Wells-Gardner Electronics Corporation TROUBLESHOOTING: 9-1. NO POWER. - Page 24 Wells-Gardner Electronics Corporation 9-2. NO VIDEO.
- Page 25 Wells-Gardner Electronics Corporation 9-3. NO RASTER:...
- Page 26 Wells-Gardner Electronics Corporation Wells-Gardner Electronics Corporation TROUBLE IN HORIZONTAL SIZE: TROUBLE IN HORIZONTAL SIZE:...
- Page 27 Wells-Gardner Electronics Corporation 9-5. TROUBLE IN CONTRAST:...
- Page 28 Wells-Gardner Electronics Corporation 9-6. TROUBLE IN BRIGHTNESS:...