5-46
E1-01: Optical unit scan drive
When the lamp unit scanner motor drives to the optics home position
sensor and is not detected within a predetermined time.
Does the lamp unit move when the power NO Lamp unit scanner motor connector is shorted
switch is turned ON? or broken.
CN114 or CN123 (of LVPS PCB) is shorted or
broken.
Lamp mechanism drive mechanism is defective.
YES CPU PCB is defective.
Is DC5V (output signal) detected on the NO Is DC5V signal detected on the CN10-17 of CPU
home position sensor connector? PCB?
YES: Home position sensor connector is
defective.
YES NO: Check all DC5V lines.
Does CN10-19 (output signal of CPU PCB) NO Home position sensor is defective.
change when the home position sensor is turned Home position sensor mounting position is
ON/OFF. incorrect.
YES
CPU PCB is defective.
E1-20: Lens ratio drive
When the lens stepping motor drives to the lens home position sensor
and is not detected within a predetermined time.
Does the lens unit move when the power NO Lens stepping motor connector is
switch is turned ON? defective.
CN115 or CN123 (of LVPS PCB) is shorted or
broken.
YES Lens drive mechanism is defective.
Lens stepping motor is defective.
CPU PCB is defective.
Is DC5V (output signal) detected on the NO Is DC5V detected on the CN10-18 of CPU
lens position sensor connector CN-1 ? PCB?
YES: Home position sensor connector is
shorted or broken.
YES NO: Check all DC5V lines.
Does CN10-20 output signal of CPU PCB
NO Home position sensor connector is shorted or
change when the home position sensor is turned broken.
ON/OFF. Home position sensor mounting position is
YES incorrect.
Home position sensor is defective.
CPU PCB is defective.
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