(4) When KEY selection of PANEL DISPLAY does not work,
Insertion of
Hinge-Upp PIN#11 of the Freezer
is normal?
START
Re-insertion of Connector,
Repair of Contact trouble
Repair using the instruction
in Reference No. 1 Connection
Diagram of CABINET-DOOR
MAIN-PCB
connector (CN50) is normally
inserted?
Re-insertion of
MAIN-PCB connector,
Repair of trouble
Connector
insertion at PANEL PCB
is normal?
Re-insertion of Connector,
Repair of trouble
Whether
more than one KEY is pushed
continuously?
Reassembly of PCB BASE
Solve the squeezed part
Operation does not start
ZD501,502
on MAIN PCB is SHORT
type fault?
Replacement of ZD501, 502
GRID signal
is inputted to MICOM
PORT #1, #2?
Replacement of
MAIN PCB ASSÕY
On push of button, check
if the signal is inputted.
Replacement of the relevant button
on PANEL-DISPLAY or Replacement
of PANEL ASSÕY PCB
N
N
Y
Y
N
Y
N
Y
Y
N
N
Y
46