Driving Of In-Storage Cooling Fan; Plunger Driving; Ic Tag Control; Sensor Led Control - Sony UP-DR200 Service Manual

4-3-2. Driving of In-storage Cooling Fan

Function: Inspires in a printer using right and left fans.
(Driving voltage) Power → CN1 on MEC-36
Signal:
(Control signal)
(Output signal)
Level: (Driving voltage) 12 V
(Control signal)
TP: (Control signal)
Driving conditions: Driven during print and when an in-
storage temperature is more than 40dC.

4-3-3. Plunger Driving

Function: Locks the opening and closing of a ribbon door.
(Driving voltage) Power → CN1 on MEC-36
Signal:
(Control signal)
(Output signal)
(Driving voltage) 12 V → 5 V during start
Level:
(Control signal)
TP: (Control signal)
Driving conditions: Driven during initialization and print.
UP-DR200
board
CN903 on MA-168 board →
CN2 on MEC-36 board
CN17 on MEC-36 board →
Right fan
CN18 on MEC-36 board →
Left fan
0 V during rotation
TP35 on MEC-36 board
board
CN903 on MA-168 board →
CN2 on MEC-36 board
CN10 on MEC-36 board →
CN451 on SE-937 board →
CN452 on SE-937 board →
Plunger
0 V during locking
TP24 (12 V driving) and
TP25 (5 V driving) on MEC-
36 board

4-4. IC Tag Control

Function: Brings an IC tag contact into touch with the IC
tag board in the takeup spool of an ink ribbon
and reads and writes IC tag information.
Signal: (Tag control IC signal)
CN902 on MA-168 board → CN3 on MEC-36
board
(Tag board control signal)
CN8 on MEC-36 board 5 CN461 on CN3049
board 5 CN465 on CN-3049 board 5
CN361 on CN-3048 board 5 CN362 on CN-
3048 board 5 IC tag board
Level: 5 Vp-p
TP: (Tag control IC signal)
TP18 and TP19 on MEC-36 board
(Control signal)
TP17 on MEC-36 board
Driving conditions: Driven when IC tag information is
read and written during initialization
and print.

4-5. Sensor LED Control

4-5-1. Ribbon Mark Sensor LEDs

Function: Controls right and left ribbon mark sensor
LEDs. Outputs the LED driving potential
adjusted so that optimum light emission amount
can be obtained during manufacturing or board
replacement.
Signal: (Output signal)
CN902 on MA-168 board → CN3 on MEC-36
board → CN4 on MEC-36 board → CN411 on
LE-352 board
Level: 2.5 Vp-p (D/A output)
TP: (Control signal) TP6 (right) and TP7 (left) on
MEC-36 board
Driving conditions: Driven only during initialization and
print. 0 V for except described above.
4-3