Service manual

UX-340L/UX-345L
UX-330L
CHAPTER 2. ADJUSTMENTS
[1] Adjustments
General
Since the following adjustments and settings are provided for this model,
make adjustments and/or setup as necessary.
1. Adjustments
Adjustments of output voltage (FACTORY ONLY)
1. Install the power supply unit in the machine.
2. Set the recording paper and document.
3. When the document is loaded, power is supplied to the output lines.
Confirm that outputs are within the limits below.
Output voltage settings
3. Settings
(1) Dial mode selector
DIAL mode (Soft Switch No. SWB4 DATA No. 3)
Output Voltage limits
+5V 4.75V ∼ 5.25V
+24V 23.3V ∼ 24.7V
2. IC protectors replacement
ICPs (IC Protectors) are installed to protect the motor driver circuit.
ICPs protect various ICs and electronic circuits from an overcurrent con-
dition.
The location of ICPs are shown below:
1MG
2MG
3 +24V
4 +24V
5 +24V
6DG
7 +5V
8DG
Connector
No. CNPW
Pin No.
2 – 1
CONTROL PWB
(BOTTOM SIDE)
CNPW
CNLIUA
FU100
TEL/LIU PWB
POWER
SUPPLY
PWB
CONTROL
PWB
CNLIUA
CNLIU
CN1
CNPW
CNTH
CNPN
CNCIS
CNSP
CNMT
CNCSW
(step 1) Select "OPTION SETTING".
KEY : FUNCTION 4
DISPLAY: OPTION SETTING PRESS OR #
(step 2) Select "DIAL MODE".
KEY: Push # until " DAIL MODE " is
indicated because the number of
# s changes by the model.
DISPLAY: DIAL MODE
(step 3) Select, using "1" or "2".
KEY: 1
DISPLAY: TONE SELECTED
KEY: 2
DISPLAY: PULSE SELECTED
(step 4) End, using the "STOP" key.
KEY:
Cursor
When initially registering,
the mode shows 1=TONE.
When registering again, the
mode which was registered
formerly is shown.
STOP
1=TONE, 2=PULSE
(1) FU100 (ICP-S07) is installed in order to protect IC’s from an over-
current generated in the motor drive circuit. If FU100 is open, replace
it with a new one.
4. Volume adjustment
You can adjust the volume of the speaker and ringer using the UP and
DOWN keys.
(1) Speaker
Press the SPEAKER key.
Press the UP or DOWN key.
Display:
SPEAKER: HIGH
SPEAKER: MIDDLE
SPEAKER: LOW
When the display shows the desired volume level, press the SPEAKER
key to turn off the speaker.
(2) Handset
Lift the handset.
Press the UP or DOWN key.
Display:
RECEIVER: HIGH
RECEIVER: MIDDLE
When the display shows the desired volume level, replace the hand-
set.
(3) Ringer
Press the UP or DOWN key. (Make sure the SPEAKER key has not
been pressed and the handset is not lifted.)
Display:
RINGER: HIGH
RINGER: MIDDLE
RINGER: LOW
RINGER OFF: OK?
If you selected RINGER OFF: OK?, press the START/MEMORY key.
↔
↔↔
↔
↔
↔
The ringer will ring once
at the selected level, then
the date and time will re-
appear in the display.