Canon LBP-1760 Service Manual page 47

Laser/scanner unit
J401-4
-3
Scanner
-2
motor
-1
J551-3
-2
BD PCB
-1
J501-6
-5
-4
Laser
diode
-3
-2
Laser
-1
driver
J301-7
-6
Main motor
-3
M101
-1/-2
-4/-5
Engine controller PCB
+24VA
J53-1
-2
/ACC
Scanner motor acceleration signal
-3
Scanner motor deceleration signal
/DEC
-4
+3.3V
J53-5
-6
/BDI BD input signal (pulse signal)
-7
+5V
J53-8
-9
Switches to the light intensity of 1200DPI when "H."
HALF
-10
Turns the laser ON compulsively when "L."
/LON
Turns the laser ON according to the /VDO signal
-11
/ENBL
when "L."
-12
/VDO
Turns the laser ON when /ENBL signal is "L"
-13
and this signal is "L."
J52-1
/HALF Half-speed rotation when "L." (1200DPI)
-2
/MRDY "L" when main motor is rotating normally.
-5
/MON Main motor rotates when "L."
-6/-7
+24VA
-3/-4
Figure 2-2-5
CHAPTER 2
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