Slide # 22
Models:
SA-PT660
SA-PT760
SA-PT960
SA-PT1060
SH-FX67, 85
Outline
Wireless
Mech
Pwr Supply
Protection
Audio
Mech Troubleshooting.
Is it the Mech or the Circuitry?
Troubleshooting concept: The fastest way to find out if the circuitry is causing the mech problem is to
check the sensors. When they turn on, they ground out the micro input lines, proving each sensor is OK.
Procedure:
1a. Note the
position of the
tray in the
jammed
mechanism
(pictured left).
1b. Unplug the
ribbon cable
from socket
CN2011.
2. Measure the
voltage at each
of the CN2011
socket pins.
The voltages
should be
identical to the
ones listed on
the next page
.
Default
= Tray 1 loaded
Defect - All or some trays Out
Defect -Trays 2-5 loaded
(shown is tray 3 loaded)
Default
tray 1
position
Fig
11
Fig
12
Fig
13
rear
Isolation