Sharp XL-DAB257NH (serv.man5) Service Manual / Technical Bulletin ▷ View online
AUD 2010 05 01
Date of Issue:
21
st
May 2010
Classification:
Yellow
AUDIO TECHNICAL BULLETIN
Page 1 of 2
Sharp Electronics (UK) Limited
Reference – RG 20100428
Revision - 1
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
Red – Carry out on all units
MODELS
XL-DAB227H XL-DAB257H
SYMPTOM No DAB function.
CAUSE Tuner
defective.
ACTION
When replacing a faulty tuner or doing any internal work within the unit please add a
10uF 16v electrolytic capacitor C331 between the junction of R357 and base junction
of Q302 to ground (observe the correct polarity) as shown in the following photos and
circuit extract.
10uF 16v electrolytic capacitor C331 between the junction of R357 and base junction
of Q302 to ground (observe the correct polarity) as shown in the following photos and
circuit extract.
REF NO DESCRIPTION PART
NUMBER PRICE
CODE
C331
10uF 16v Electrolytic capacitor
VCEAPS106AF1C
AB
Figure 1 and 2: Add a 10uF 16v capacitor to the location as shown on the DAB PWB-D.
+
-
AUD 2010 05 01
Date of Issue:
21
st
May 2010
Classification:
Yellow
AUDIO TECHNICAL BULLETIN
Page 2 of 2
Sharp Electronics (UK) Limited
Reference – RG 20100428
Revision - 1
White – Carry out as required
Yellow – Carry out as required and whenever the unit comes in for service
Red – Carry out on all units
Figure 3: Addition of C331 at the junction of R357 and Base of Q302 to ground.
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