NEC N9902 F-1 Service Manual

Also see for AccuSync 95F-1: Service manual

NEC N9902 F-1 Service Manual Manual pdf 10 page image

MODE RESOLUTION H-SYNC EREQ. V-SYNC FREQ H . POLARITY V . POLARITY1 VGA400 31.4kHz 70Hz - +2 VGA640*480 31.4kHz 60Hz - -3 640*480(75) 37.5kHz 75Hz - -4 640*480(85) 43.2kHz 85Hz - -5 800*600(75) 46.8kHz 75Hz + +6 MAC¢∫50K 49.7kHz 75Hz - -7 800*600(85) 53.6kHz 85Hz + +8 1024*768(75) 60.0kHz 75Hz + +9 1280*1024(60) 64.0kHz 60Hz + +10 1024*768(85) 68.6kHz 85Hz + +11 1280*1024(75) 79.9kHz 75Hz + +12 1280*1024(85) 91.1kHz 85Hz + +13 1600*1200(75) 93.7kHz 75Hz + +14 1024*768(60) 48.3kHz 60Hz - -15 Free run Adj. 30.0kHz 69Hz - +16 H.CENTERING,EHT 90.1kHz 85Hz + +7N9902 Adjustment Specifications(1) Adjustment tools:(A) Color Analyzer (B) CHAROMA 2135 or Function Generator(C) Multi meter (D) Hi-Pot Probe(E) Convergence Meter (F) Degauss Probe(G) Power Meter (H) Automatic Alignment System(I) DDC test fixture(2) TIMING TABLE(FACTORY MODE -14 MODES)(3) Definition for Normal Condition:(A) INPUT AC VOLTAGE 110V/50HZ.(B) WARM UP TIME 30 MINUTES.(C) CROSSHATCH PATTERN.(D) ALL VR ADJ CENTER.(E) CRT FACE TO EAST DIRECTION(F) COLOR TEMP 9300K(4) B+ Adjustment:(A) MODE: 60kHz 1240*768(75)(B) PATTERN: CROSSHATCH(C) Adjustment: Adjust VR102 to make the cathode of D112 has 14.9V+0.1V on cathode.(D) CHECK: CHECK OTHER POWER SOURCE should be 82+2V,7.0+0.3V,47V+2V,-12.1V+0.5V.