Hitachi C 12LCH Technical Data And Service Manual page 55

Item
Phenomenon
Digital display does not
11
indicate properly.
(Models C 12LCH/
C 12LC)
(Miter angle)
(Bevel angle)
(Miter angle)
(Bevel angle)
12 Angle indicated on the
digital display can not
be reset.
(Models C 12LCH/
C 12LC)
Back light of digital
13
display can not be
turned on/off.
(Models C 12LCH/
C 12LC)
Cause
a Same as item 10- a
to f .
b Encoder failure
c Cord (A) is
disconnected.
d Deformation of spring
plate
e Loose spring plate
a Switch failure of
printed circuit board
(B1)
b Monitor (A) failure
c End of switch life of
panel sheet
a Switch failure of
printed circuit board
(B1) ass'y
b Monitor (A) failure
c End of switch life of
panel sheet
--- 51 ---
Factory
Inspection, repair or
standard
• Same as item 10- a to f .
• Replace the Encoder [109].
• Replace the Encoder [109].
• Replace Cord (A) Length
160 mm [117].
• Replace Cord (A) Length
160 mm [117].
• Adjust the squareness of the
miter angle of the main body
and replace the Spring Plate
[74A].
• Adjust the squareness of the
miter angle of the main body
and replace the Spring Plate
[74A].
• Replace Printed Circuit Board
------
(B1) [131].
• Replace Monitor (A) [125].
• Replace the Indication Panel
------
Ass'y [128].
• Replace the Printed Circuit
------
Board (B1) [131].
• Replace Monitor (A) [125].
------
• Replace the Indication Panel
------
Ass'y [128].
adjustment