Adjustment Required When Part Is Replaced - Pioneer PDP-4270XA Service Manual

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7.2 ADJUSTMENT REQUIRED WHEN PART IS REPLACED

A
Notes on replacing parts
For the parts described in the list below, replacement is required for the whole Assy, not only the defective part.
If any part listed below is identified as defective and needs replacement, replace the whole Assy, and make necessary
adjustments after replacement.
Reason: The whole Assy must be replaced, because adjustments and data rewriting for the Assy at the level of production
line are required.
PCB Assy No.
B
AWW1240
AWW1140
AWV2318 (PDP-427XD
and PDP-427XA)
AWV2320 (PDP-4270XD
C
and PDP-4270XA)
POWER SUPPLY Unit
D
MAIN Assy
DIGITAL Assy
X MAIN DRIVE Assy
X SUB DRIVE Assy
E
Y MAIN DRIVE Assy
Y SUB DRIVE Assy
ADDRESS Assy
SENSOR Assy
TANSHI Assy
F
R07 DT Assy (PDP-427XD / 4270XD only)
108
1
2
Function Name
Ref No.
IC3151
IC3401
42 DIGITAL Assy
IC3301
IC3156
SENSOR Assy IC3652
IC4603
IC4701
IC4901
IC5101
MAIN Assy
IC5103
IC5301
IC5403
IC5404
IC8202
IC8301
IC8402
PDP-427XD
2
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Parts that Require Whole-Assy Replacement
Function Name
Module microcomputer
Sequence IC
Flash memory
EEPROM
EEPROM
Flash ROM
AV switch
RGB switch
MAIN VDEC
SUB VDEC
A/D Converter
EEPROM
EEPROM
Flash ROM
Flash UCOM
Flash ROM
The assembly must be replaced as a unit, and no
part replacement is allowed.
No adjustment is required after replacement of parts
other than those mentioned above.
No adjustment is required after replacement of parts
other than those mentioned above.
No adjustment is required after replacement of parts
other than those shown in the following page.
No adjustment required
No adjustment is required after replacement of parts
other than those shown in the following page.
No adjustment required
No adjustment required
No adjustment is required after replacement of parts
other than those mentioned above.
No adjustment required
The assembly must be replaced as a unit, and no
part replacement is allowed.
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Part No.
AGC1011
PEG239A
AGC1009
BR24L04FJ-W
BR24L02FJ-W
AGC1020
R2S11002AFT
R2S11001FT
UPD64015GM-UEU
TVP5150AM1PBS
AD9985KSTZ-110
BR24L02FJ-W
BR24L02FJ-W
AGC1019
AGC1016
AGC1018
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