COMPAQ P900 [F99chassis] free download

File name Compaq P900 Service Manual.pdf

SERVICE MANUAL US Canadian AEP AUS Japan N. Hemisphere UK P900 P900 Model Model Model Model Model Model Model Chassis No. SCC-L30M-A F99 CHASSIS SPECIFICATIONS Picture tube 0.24 mm (center) -0.25mm (edge) aperture grill pitch 19 inches measured diagonally 90-degree deflection (17.99" maximum viewing image) Approx. 365 X 274 mm (w/h) (143/8 x 104/5 inches) Horizontal: Max. 1920 dots Vertical: Max. 1440 lines Approx. 352 x 264 mm (w/h) (137/8 x 102/5 inches) Power Consumption Maximum Nominal Deflection frequency Video image area 140 W, 478 BTU/h 100 W, 341BTU/h Horizontal: 30 to 107 KHz (automatic) Vertical: 48 to120 Hz (automatic) 100 to 120 V, 50/60 Hz, 1.8A (RMS) at 100VAC 220 to 240V, 50/60Hz, 1.0A (RMS) at 240 VAC Dimensions 449 x 475 x 462 mm (w/h/d) (172/3 x 187/10 x 181/5 inches) Approx. 26.0 kg (57 lb 5 oz) AC input voltage/current Resolution Standard image area Input signal Video Sync Analog RGB (75 ohms typical) 0.7 Vp-p, Positive Separate Horizontal and Vertical TTL level, Positive or Negative Video Composite (Sync on Green) 0.3 Vp-p Mass Design and specifications are subject to change without notice. COLOR MONITOR P900 POWER MANAGEMENT MODES If you have VESA's DPMS compliance display card or software installed in your PC, the monitor can automatically reduce its power consumption when not in use. If input from keyboard, mouse, or other input devices is detected, the monitor will automatically "wake up." The following table shows the power consumption and signaling of this automatic power saving feature. SELF DIAGNOSTIC FUNCTION When a failure occurs, the STANDBY/TIMER lamp will flash a set number of times to indicate the possible cause of the problem. If there is more than one error, the lamp will identify the first of the problem areas. TIMING SPECIFICATIONS --2-- P900 SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer: 1. Check the area of your repair for unsoldered or poorlysoldered connections. Check the entire board surface for solder splashes and bridges. 2. Check the interboard wiring to ensure that no wires are "pinched" or contact high-wattage resistors. 3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators. 4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement. 5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement. 6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer. 7. Check the B+ and HV to see if they are specified values. Make sure your instruments are accurate; be suspicious of your HV meter if sets always have low HV. 8. Check t