Read Sharp LB-1085 Service Manual online
LB-1085
DISASSEMBLY AND ASSEMBLY
4 – 11
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About the drive principle of inverter for HCFL 108 MODEL
1. In case of a lamp failure
If at least one in the lamp which exists 24 becomes a life, it is designed so that all 24 lamps may go out.
LED is carried on the PWB of RUNTKA352, RUNTKA353, and RUNTKA354, and it is shown whether the lamp connected to which PWB became a
life.
LED of the PWB which the lamp has turned on normally is turned on, and LED of the PWB connected to the lamp which became a life goes out, it can
be known by LED whether the lamp connected to which PWB is a life.
be known by LED whether the lamp connected to which PWB is a life.
RUNTKA352WJZZ
INVERTER PWB
INVERTER
CIRCUIT
CIRCUIT
INVERTER
CIRCUIT
CIRCUIT
RUNTKA352WJZZ
INVERTER PWB
RUNTKA352WJZZ
INVERTER PWB
RUNTKA352WJZZ
INVERTER PWB
RUNTKA352WJZZ
INVERTER PWB
RUNTKA352WJZZ
INVERTER PWB
INVERTER PREHEAT PWB
RUNTKA353WJZZ
(RUNTKA354WJZZ)
INVERTER PREHEAT PWB
RUNTKA353WJZZ
(RUNTKA354WJZZ)
(RUNTKA354WJZZ)
INVERTER PREHEAT PWB
RUNTKA353WJZZ
(RUNTKA354WJZZ)
INVERTER PREHEAT PWB
RUNTKA353WJZZ
RUNTKA353WJZZ
(RUNTKA354WJZZ)
INVERTER PREHEAT PWB
RUNTKA353WJZZ
(RUNTKA354WJZZ)
INVERTER PREHEAT PWB
RUNTKA353WJZZ
(RUNTKA354WJZZ)
INVERTER CONTROL PWB
RUNTKA351WJZZ
CONTROL SIGNAL
CONTROL SIGNAL
CONTROL CIRCUIT
PREHEAT
CIRCUIT
CIRCUIT
PREHEAT
CIRCUIT
CIRCUIT
Lamp, x24
Whole inverter composition figure
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