Self-Diagnostics - Panasonic CU-5E34NBE-C Technical & Service Manual

8-2. Self-Diagnostics

The self-diagnostics is performed and the results are indicated with the combined patterns of lighting ON,
blinking and lighting OFF of the 4 error monitor lamps on the Control P.C.Board.
WARNING
8-2-1. Method of Self-Diagnostics
(1) Remove the right front cover.
Refer to Fig. 2 in "7-3-1 Noise Reducing Control" for details.
(2) Turn on the switch No.2 of the dip switch (SW01) on the Control P.C.Board. (Fig.6)
Check the combined status of the error monitor lamps (Fig.6), and refer to
the " 8-2-2. Display of Error Monitor Lamps" for the self-diagnostics.
The error monitor lamps indicate the past 3 error patterns including the latest one.
NOTE
To prevent electric shock, do not inspect or repair until
the Power Lamp on the Control P.C.Board is turned off.
Fig. 5 View from front
Power lamp
ERR0
ERR1
ERR2
ERR3
Fig. 6 Control P.C.Board
Slide downward
Error monitor lamps
27
Control P.C.Board
Right front cover
ON
1 2
Dip switch (SW01)