Panasonic PT-EZ770T

INF-40
SECTION 1 SERVICE INFORMATION
■ REMOTE IN does not respond
■ Controls of side panel does not respond
A CheckthecableconnectionofJK4004(REMOTEIN)
NG
A Connect the connector securely
S
Check the voltage (DC 3.3V) at pin 13 of connector [S1] when the
power is turned on.
NG
A Check the [3.3V] power line on the [A]-P.C.Board
A
ThesignalwaveformcanbedetectedatpinsofJK4004when
the contact controller is used
NG
A Replace[J]-P.C.Board
A Check the connection cable between [A32] - [S1]
NG
Replacethecable
A ChecktheFPCcablebetween[JK4007]-[A28]
NG
ReplacetheFPCcable
A Check the voltage [DC 3V] at pins 9 - 12 of connector [S1]
NG
S Check the [3.3V] power line on the [S]-P.C.Board
A
The signal waveform can be detected at L1194 ^ L1197, L1202,
L120 3, L1205, L120 6.
NG
J Replace[J]-P.C.Board
A
Check that the voltage changes at L1177 - L1180 when some of
the control button are pressed
NG
J Replace[S]-P.C.Board
A Replace[A]-P.C.Board
A Replace[A]-P.C.Board
OK
OK
OK
OK
OK
OK
OK
OK