5-9
S
Specification Switching Circuit
This circuit reads the specification switching information.
The specification switching is conducted by a ROM program built into the main CPU
according to the solder point settings on the PCB.
Fig. 5.3-6
Specification Switching Circuit
*
Note that the solder point specifications change according to the CPU display
format.
Check the solder specifications in the P/L PCB diagram.
S
Detector Circuits
These circuits detect the status of the switches and keys that operate the unit (Two-
connection switch, Start key, Stop key, Dial switch, Continuous key, and Extra
border key) and the sensors that determine the film type, document length and width,
and cover open/closed status. The Main CPU controls the motors, LEDs and
buzzer according to these input signals.
S
Motor Drive Circuits
These circuits convert the motor control signals output from the main CPU output
ports to 24V drive signals and supplies these voltage signals to each motor.
S
Power Supply Circuits
These circuits convert the unstabilized DC power supply input from the Jack PCB
into a stab5V DC power supply for the logic ICs, including the main CPU,
and into a stab24V DC power supply to drive the motors.
Summary of Contents for LX-1200
Page 1: ...SERVICE MANUAL MODEL LX 1200 LX 300 ...
Page 2: ...COOL LAMINATOR SERVICE MANUAL MODEL LX 1200 LX 300 ...
Page 5: ...Chapter 1 SPECIFICATIONS ...
Page 9: ...Chapter 2 MECHANISMS ...
Page 20: ...Chapter 3 DISASSEMBLY PROCEDURES ...
Page 58: ...Chapter 4 ASSEMBLY PROCEDURES ...
Page 105: ...Chapter 5 ELECTRONIC CONTROLLERS ...
Page 127: ...Chapter 6 MAINTENANCE ...
Page 149: ...Chapter 7 TROUBLESHOOTING ...