Specifications

[Step4]
[Step5]
[Step6]
[Step7]
[Step8]
[Step9]
[Step 10]
[Step 11]
[Step 12]
[Step 13]
REV.-A
When only the MAIN board is replaced:
Set the jumpers (5 and 6) on the MAIN board according to the settings confirmed in Step
3, and install the main board to HOUSING, LOWER.
When either the printhead or the printer mechanism is replaced:
Set the jumpers (5 and 6) on the MAIN board according to the settings confirmed in Step
3.
MAIN Board
Jumper
Figure 4-7. Jumper Setting
Connect a dummy resistor (20.
OKohm~
1 %)
(#F59
1) to connector
CN
16 on the MAIN board.
Set the digital multi-meter to the test terminal
TP3(+)
and
TP4(–)
on the MAIN board.
Connect the control panel to
CN
19 and short-circuit the pin no. 1 and no.3 of the connector
CN2
on the control panel. (Refer to section 5.1 for the details.)
Turn on the power.
Adjust the volume VR2 on the MAIN board until the digital multi-meter indicates the specified
voltage with an allowance of
&O.5V.
Turn off the power.
Stop short-circuiting
CN2
on the control panel, and remove the control panel from the MAIN
board.
Remove the dummy resistor and the multi-meter from the MAIN board.
Install the printer mechanism.
4-7