Replacing Heater Relay Board - MUTOH ValueJet 1604 Service Manual

VJ-1604 Maintenance Manual
3. Remove the screws (4 pieces) that retain the HEATER CONT board.
No.
4. Replace the HEATER CONT board.
5. To reassemble the unit, reverse the removal procedure.
6. Install the firmware to the HEATER_CONT board.
"7.3.7 Sub Controller Installation" p.7-23
4.4.4

Replacing HEATER RELAY Board

• Before you replace a board assembly, remove the AC inlet cable.
You may suffer electric shock due to standby current.
• When you handle a circuit board, do not touch any elements on it with bare hands.
Doing so may cause electrostatic discharge and damage the elements.
• When connecting and removing the FFC type cables to/from the MAIN board assembly
connectors, always pull or push the cables perpendicularly.
Pulling or pushing them slantwise may damage/short/break the terminals in the
connectors, causing a breakdown of the on-board elements.
• The cables can be connected or removed up to 5 times.
1. Remove the media guide F (upper).
"4.2.17 Removing Media Guide F (Upper)" p.4-24
2
1 HEATER CONT board
2 Screws that retain the HEATER CONT board.
×
(cup screw M3 6)
Part name
4-45
4 Parts Replacement
2
1
Rev.-05