File name G520.pdfCPD-G520
SERVICE MANUAL
US Model Canadian Model N. Hemisphere Model S. Hemisphere Model Equator Model
Chassis No. SCC-L33E-A
CR1 CHASSIS
SPECIFICATIONS
CRT 0.24 mm aperture grille pitch 21 inches measured diagonally 90-degree deflection FD Trinitron Approx. 403.8 × 302.2 mm (w/h) (16 × 12 inches) 19.8" viewing image Horizontal: 2048 dots Vertical: 1536 lines Horizontal: 1600 dots Vertical: 1200 lines Video signal Analog RGB: 0.700 Vp-p (positive), 75 SYNC signal H/V separate or composite sync: TTL 2 k, Polarity free Sync on Green: 0.3 Vp-p (negative) Approx. 388 × 291 mm (w/h) (15 3/8 × 11 1/2 inches) or Approx. 364 × 291 mm (w/h) (14 3 /8 × 11 1 /2 inches) Deflection frequency* AC input voltage/current Power consumption Dimensions Mass Plug and Play Horizontal: 30 to 130 kHz Vertical: 48 to 170 Hz 100 to 240 V, 50 60 Hz, 2.0 1.0 A Approx. 135 W (with no USB devices connected) Approx. 497 × 502 × 485 mm (w/h/d) (19 5/8 × 19 × 18 7/8 inches) Approx. 30 kg (66 lb 2 oz) DDC2B/DDC2Bi, GTF** Viewable image size
Resolution Maximum Recommended Input signal levels
* Recommended horizontal and vertical timing condition · Horizontal sync width duty should be more than 4.8% of total horizontal time or 0.8 µs, whichever is larger. · Horizontal blanking width should be more than 2.3 µsec. · Vertical blanking width should be more than 450 µsec. ** If the input signal is Generalized Timing Formula (GTF) compliant, the GTF feature of the monitor will automatically provide an optimal image for the screen. Design and specifications are subject to change without notice.
Standard image area
TRINITRON® COLOR COMPUTER DISPLAY
CPD-G520
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 poorly-soldered 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 the antenna terminals, metal trim, "metallized" knobs, screws, and all other exposed metal parts for AC Leakage. Check leakage as described below.
To Exposed Metal Parts on Se |