Read Sharp 76FW-53H (serv.man13) Service Manual online
Colour Television – DA100/DW100 Chassis
Sharp Electronics (UK) Ltd
Technical Support
September 99
Page 18
R
ESET
It can be seen from the diagram below that all of the reset signals are a change in state, either form
low to high or high to low. The order of events is as shown, supply, reset in, reset out (1), Reset out
(2). The line oscillator will not start until reset out (1) has occurred and the HOUT pulse = zero
low to high or high to low. The order of events is as shown, supply, reset in, reset out (1), Reset out
(2). The line oscillator will not start until reset out (1) has occurred and the HOUT pulse = zero
3v3
Reset in
Reset out (1)
Reset out (2)
MegaText Reset
From Reset out (2)
From Reset out (2)
Low
Low
Low
Low
HOUT
IC1001 pin 57
IC1001 pin 57
Low
Low
Low
Power Supply
Start
Start
Line Drive
Start
Start
PROT
IC1001 pin 95
IC1001 pin 95
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