Acer 7299sl, Service Manual

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Circuit Operation Theory API Confidential
No Copy/Reproduction Allowed
2-21
Off None None Orange Flash
5W
When both of the H-sync and V-sync are none, the power 6.3V,+16V,+24V,+80V and
+200V output will be cut-off , the power input will be under 5W.
When the H-sync is none , the power 16V output will be cut-off . The power input will be
under 15W .
When the V-sync is none , the power 6.3V,+16V,+24V,+80V and +200V output will be
cut-off. The power input will be under 5W.
2.4 Video Circuit
2.4.1. Design Specifications
2.4.1.1 input
D-sub connector
2.4.1.2 sync type
separate sync
composite sync
2.4.1.3 pixel rate =
160 MHz
2.4.1.4 light output (3" block pattern)
40F.L. [ brightness at cutoff and contrast at max.]
light output (full white pattern)= 28F.L. [ brightness at cutoff and contrast at max.]
2.4.2 CRT Specifications
2.4.2.1 heater voltage
6.3V
2.4.2.2 heater current
0.32A (typical)
2.4.2.3 cathode spot cutoff voltage
110V
2.2.2.4 max-to- min cutoff ratio
1.17