Hitachi CMP4121HDE Service Manual page 11

ERR Detect
Code position
( board)
81 PSU Va power voltage is excessive
82 Va power startup is faulty.
99 Va power current is excessive (during operation) ADM1 - 8 ABUS-L
9B Va power current is excessive (during startup)
9D Va power current is excessive
(during operation)
A5 ADM1 ADM1 has abnormal heat generation.
A9 ADM2 ADM2 has abnormal heat generation.
AD ADM3 ADM3 has abnormal heat generation.
B1 ADM4 ADM4 has abnormal heat generation.
B5 ADM5 ADM5 has abnormal heat generation.
B9 ADM6 ADM6 has abnormal heat generation.
BD ADM7 ADM7 has abnormal heat generation.
C5 ADM8 ADM8 has abnormal heat generation.
E2 LOGIC 5V power startup is faulty.
Contents
PSU
ADM1 - 8 PSU
ADM1 - 8 ABUS-L
ADM1 - 8 ABUS-L
ADM1
ADM2
ADM3
ADM4
ADM5
ADM6
ADM7
ADM8
X-SUS
Suspected faulty board
(In the order of higher probability of defect)
(1) (2) (3) (4)
LOGIC
LOGIC ABUS-L ABUS-R
ABUS-R PSU
ABUS-R PSU
ABUS-R PSU
PSU LOGIC
PSU LOGIC
PSU LOGIC
PSU LOGIC
PSU LOGIC
PSU LOGIC
PSU LOGIC
PSU LOGIC
Y-SUS PANEL PSU
11
(5) (6) (7)
LOGIC
LOGIC
LOGIC Excess current is
detected In
ACCC operation.
It can possibly
occur depending
on screen
display.
ABUS-L ABUS-R LOGIC
Remarks