Haier HS-2190 Service Manual page 35

Horizontal bright lines
Open R907 using a
black probe touch N402(pin4) to see whether the line can suddenly spread.
Available
Fault in field signal circuit
Inspect R907 R448 R448
normal
Replace
Inspect
components or
and
repair the
componets
interrelated
circuit
Picture on screen without sound
Available
N701 is nomal, inspect componets
interrelated sound IF amplifying
around N201 and N201
Available
Fault in the circuit of
sound
inspectV701 V903
Horizontal bright lines
meter on 1k range with the red probe grounding then make the
Abnormal
N201 Inspect
the deflexion coil , C433 , N402
and the components around it
around it
Picture without sound
Open C700 make the red probe of a
grounding ,using the black probe of meter to touch N402(pin6)
MUTE
Inspect the speaker,N701and
components interrelated sound
ampfiying around N701
Fault in field signal output
Inspect the voltage onN402(3)
normal
the plug of
not
Open the collector of V701 using the black
probe to touch N701(pin6)
whether there is the voice of cluck
Inspect the voltage 19V
Available
not
abnomal
field Inspect
circuit of the
power
voltage 24V
meter
listening
no
no
Inspect the circuit of
19V power supplying
circuit
35