HSS-730/830 & UFD505/515 SERVICE MANUAL HDT DVB SATELLITE STB
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5.9.
A digit in FND doesn’t display
Check that
Pulse signals which control 4 digit
output from transistor.
Digit data from in GPIO buffer
(74HCT374) output corrected.
5.10.
SMPS doesn’t give main power with S5V (standby5V) on
Check that
PWCNTL signal is (low at Pin 46 at STi5518 : main power on, high at Pin 46 at STi5518 :
main power off).
Ch1 DIGIT1
Ch2 DIGIT2
Ch3 DIGIT3
Ch4 DIGIT4
(Front cable)
Ch1 GPIO_CLK
Содержание HSS-730
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