Diagnosis Of The Main Assy - Pioneer DVR-555HX-S Service Manual

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5.2 DIAGNOSIS OF THE MAIN ASSY

Power ON
A
Does
a desired screen
appear when selected
a tuner?
Does a desired
audio output it?
B
Video recording and playback by HDD
Can the video recording
and playback of HDD?
Video recording and playback by DVD
C
Does the tray open?
Insert a disc and close the tray, then playback it
Do recognize a disc?
D
Do play back desired
video and audio?
DVD recording
E
Can record desired
video and audio?
End
F
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1
2
1
Failure in the periphery of CN2301
(Poor contact with the TUSB Assy.)
No
2
Failure in the periphery of CN4501
(Power supply is not supplied from the POWER SUPPLY Assy.)
3
Failure in the periphery of IC4511, IC4521, IC4531, IC4541, IC4552,
IC4561, IC4562 and IC4571 (Power supply is not supplied to each IC.)
Yes
1
Failure in the periphery of CN2301
(Poor contact with the TUSB Assy.)
No
2
Failure in the periphery of IC3101
(Failure in the periphery of AUDIO ADC for input audio.)
3
Failure in the periphery of IC3201
(Failure in the periphery of AUDIO DAC for output audio.)
Yes
1
Failure in the periphery of CN5604
No
(Poor contact with the HDD.)
2
To the HDD check mode
Yes
1
Failure in the periphery of CN601
No
(Poor contact with the FRONT Assy.)
2
Failure in the periphery of IC501
(Failure in the periphery of the Driver IC.)
Yes
1
Failure in the periphery of CN101 (Poor contact with the Pickup Assy.)
No
2
Failure in the periphery of CN501 (Poor contact with the SPDL.)
3
Failure in the periphery of CN502 (Poor contact with the STEPPER.)
Yes
1
Failure in the periphery of CN2301
(Poor contact with the TUSB Assy.)
No
2
Failure in the periphery of IC3101
(Failure in the periphery of AUDIO ADC for input audio.)
3
Failure in the periphery of IC3201
(Failure in the periphery of AUDIO DAC for output audio.)
Yes
No
Failure in the periphery of CN101
(Poor contact with the Pickup Assy.)
Yes
2
3
DVR-LX60D
3
4
No
No
No
No
No
No
Failure in the periphery of IC1001
(There is possibility of failure of
the EMMA2RFE chip.)
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