Technics SL-1500C Manual page 19

Service information – LED indication in abnormal condition
LED blink
[33] LED
200ms
700ms
[33] LED
200ms
[45] LED
200ms
700ms
[45] LED
200ms
[33] and [45] LED
200ms
700ms
[33] and [45] LED
200ms
Abnormal condition
Motor speed error
‐‐> Motor will stop
Motor speed error
‐‐> Motor will stop
Abnormal FG signal of motor hall sensor
‐‐> Motor will stop
Abnormal input signal of motor hall sensor
‐‐> Motor will stop
Abnormal motor voltage(+24V line)
‐‐> Motor will stop
Abnormal clock switching signal
‐‐> Motor will stop
Defect part
DC Motor and/or Main PCB
DC Motor and/or Main PCB
DC Motor and/or Main PCB
DC Motor
SMPS PCB and/or Main PCB
Main PCB
Technical Information for Hi‐Fi Audio System
19