PIONEER PDP-4216HD
Instrukcja Serwisowa

1

2

3

4

A

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.

B

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 Waveform 1 #9,11(M_SDA/SCL) at J1(When power on) In Main Assy

NG

Check Power supply unit & the short circuit between 5VSTB and GND

NG

Check Power supply unit & Panel Module

C
Check 1V8VDD 2V5VDDLine at U47,48 In Main Assy Waveform 2 The signal waveform of Y1 in Main Assy NG Check the power of +3V3_PLL and replace the part of Y3 NG Check the state of soldering in U47, U48 and related components.

D

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

Change Main Assy

� Waveform
E

<Waveform 1>

<Waveform 2>

F

T01
132
1 2

T01
PDP-5016HD
3 4