PDP-5071PU
99
5678
56
7
8
C
D
F
A
B
E
No
NG
Replace cable between SIDE 
Assy and SIDE Assy.
NG
Replace IC5402.
NG
Check around IC4702. If there 
was no ploblem replace IC4702.
Yes
Check the cables and connector 
between MAIN and AUDIO Assys.
If it's no problem, replace Audio 
signal cable.
No
Check the communication between 
AUDIo Assy and the microcomputer.
If it's no problem, replace AUDIO 
Assy.
No
Yes
Yes
Is a signal come to AUDIO Assy?
Yes
Yes
Yes
Yes
Yes
Check the speakers and speaker 
cables.
Is the cable between SIDE Assy 
and CN8801  connected normal?
No
Check the flexible cable between CN8802
(CN8803) and CN4004 (CN4005).
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Is a signal input to IC4701?
No
Connect the cable , then check 
again.
Check the communication between 
Jack and CN8802.If it's no problem, 
replace IO Assy.
No
Replace or reconnect flexible 
cable.
No
No
No
Is a signal output from IC5402?
Is a signal output from IC4702?
NG
Check the communication between 
IC4702 and IC4701. If it's no problem, 
replace MAIN Assy.
Yes
Yes
Yes
Yes
Yes
Yes
Is a signal input to IC4701?
Replace or reconnect flexible 
cable.
No
Replace or reconnect flexible 
cable.
No
Check the communication between 
CN4005 and IC4701and replace 
broken parts.
No
Replace or reconnect flexible 
cable.
Select the function of Home 
Media Gallery.
No
Check the communication between 
CN4004 and IC4701and replace 
broken parts.
No
Check the communication between 
CN4004 (CN4005) and IC4701and 
replace broken parts.
No
Check the communication between 
CN4005 and IC4701and replace 
broken parts.
Is the sound of side analog input 
source output?
Is the sound of rear analog input 
source output?
No
As for the sound of  HDMI, has the 
analog input been selected?
No
Check the communication 
between jack and CN8803.
If it's no problem, replace IO Assy.
Has the signal arrived to CN8803? 
Check the Flexible cable between 
CN8803 and CN4005.
Has the signal arrived to CN8802? 
Check the flexible cable between 
CN8802 and CN4004.
Is a signal input to IC4701?
Yes
Check the Flexible cable between 
HNM Assy and CN4017.
Yes
Yes
Yes
Is a signal input to IC4701?
Is a signal input to IC4701?
Is the sound of HDMI input sound 
output?
No
No
Has the function (Home Media 
gallery)  is selected in Home Menu? 
No
Is the sound of PC output?
Finishing troubleshooting.
Is the sound of Home Media 
Gallery output?
Is a sound output from 
AUDIO Assy?
b ca