Precaution On Replacement Of The Power Supply Unit - Pioneer PDP-4280HD Service Manual

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8.6 PRECAUTION ON REPLACEMENT OF THE POWER SUPPLY UNIT

Attachment of the housing wire
The housing wire (J126) is attached to the P11 terminal of the POWER SUPPLY unit. As the housing wire is not provided with
the POWER SUPPLY unit for service, when replacing the POWER SUPPLY unit, remove the housing wire (J126) from the old
one and attach it to the new one.
NEVER turn on the unit before replacement, as doing so may damage the PC boards or the product.
Note:
The wiring shown in the photo is different from the actual power supply unit, because the product in the
photo is a prototype.
POWER SUPPLY unit
1
Disconnect the housing wire (J126) from the P11 terminal
on the old POWER SUPPLY Unit.
Housing wire (J126)
1
P11
POWER SUPPLY unit (old)
5
6
2
Connect the housing wire (J126) to the P11 terminal
on the new POWER SUPPLY Unit.
PDP-4280HD
6
7
Housing wire (J126)
2
P11
POWER SUPPLY unit (new)
7
8
A
B
C
D
E
F
137
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