![background image](http://html.mh-extra.com/html/haier/htr20-a/htr20-a_service-manual_138151028.webp)
28
5
6.
Make C301/C302 open. Multimeter is at band R
Χ
1K. Red
probe connect to ground. Touch No.1 OR No.9 of N301 with
Picture exists but no sound
Make C301 OR C302 collector
open. Touch No.1 OR No.9 of
N301 with black probe to see if
Power amplifier is abnormal.
Inspect N301 and peripheral
components of N301
Inspect C301
、
C302
Check to see if
+12.89V exists
Inspect N201 and peripheral
component of N201
Inspect
+12.89V power
Yes
No
Yes
No
Have noise
No noise
Inspect
Inspect the circuit from
No.50 of N201 to No.3
of XZ601
Yes
No
Change V901 or
weld V901 again
Check to see if voltages of XZ601
are normal
Lack of red
Check to see if V601 is
open or not well welded
Inspect R601
Yes
No
Summary of Contents for HTR20-A
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