Troubleshoot chapter 7──heat function
Pic. 32 heating part
Wire plug with The socket in bad
contract
Heat function
Cant stop heating
Pic.32 or 33
,
controlled silicon BCR5PM
damaged
,
or the signal
component :photo coupler
250
、
SMD triode
8050
damaged
,
which cause the
power
witch
cant
stop
automatically
pic32
,①
wire plug from
the driver board to the
heating parts in bad
contraction .
②
the wire
inside heating part take
off
(
normal resistance
value 25
Ω
)
No heating
exchange damaged
component or driver board
Driver board no AC28V input or
driver board damaged
①
transformer damaged, will no
giving AC28V
②
look at the driver board to
detect the
BCR5PM
、
photo coupler 250
、
SMD
triode8050
Exchange heating part
poor contactor or
heating part damaged
Exchange transformer or driver
board
Pic. 31 foot Roller construction (right )
75
℃
thermistor
,
resistance value
≤ 5
Ωis working normal , if
resistance value larger , that
motor cant work
Two inductances in the wire that used for
anti-interference , but always with bad welding , pls
take care of this point .
Foot roller motor resistance value is
70
~
90
Ω
Содержание Remidial Deluxe +
Страница 1: ......