PDP-5016HD
132
1
2
4
1
2
3
4
C
D
F
A
B
E
4) No Power
Check the condition of the input power & cable connection.
(JP35(3V3STB, A+12V, +6.5V), JP36(5VSTB,35V), JP34(5V), JP33(S_16.5V))
Check the condition of on-board regulators.
Check for short circuits between each power terminal and the ground.
No Power
When Powered On
#5,6,7(3V3STB)
at JP35
in Main Assy
NG
Check Power supply unit
& the short circuit between
3V3STB and GND
#3(5VSTB)
at JP36
In Main Assy
#9,11(M_SDA/SCL)
at J1(When power on)
In Main Assy
Waveform 1
Check 1V8VDD
2V5VDDLine at U47,48
In Main Assy
The signal
waveform of Y1
in Main Assy
NG
NG
Check Power supply unit
& Panel Module
NG
Check the state of soldering
in U47, U48 and related
components.
NG
Check the power of +3V3_PLL
and replace
the part of Y3
Waveform 2
Change Main Assy
Check the other
Power of Power supply unit
(A+12V,+6.5V,5V,+16.5V)
NG
Check for short circuits
between each power terminal
and the ground
& the short circuit between
5VSTB and GND
T01
T01
<Waveform 1>
<Waveform 2>
Check Power supply unit
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299