Samsung HT-D4500 - Connections; Speaker Connection Guide

4.Troubleshooting
4.1.1.NoPower
No P owe r De te cte d
(Sta nd by LED OFF)
Yes
No
No
Che ck ma in as s y - s pe cially
check around MICOM IC. (Vcc)
Re place ICM823.
5.6V output
che ck (C ON3, pin1,2)
→ 5 .6?
Yes
Re place SMPS ASS ’Y.
No
Re place Diode .
Re place Fus e . (5A 250V)
Re place ICA801.
Re place MA801.
No
Re place compone nt
if it ha s proble m.
Che ck
Switch ing IC (ICA801)
short test pin 8. to pin 1, 2, 3,
4, 5, 6, 7 → OK (me a ns
notsh ort)?
Che ck MA801.
all pins ar e no t sh orted to
ea ch othe r.
Che ck
input voltage of ICM823.
(Cathode of
DM824 → 6~16V?)
Che ck
diode s (DM824,DM829,
DM830,DR3502)
→ OK?
Che ck primary s ide .
Fus e (FS801S) → O K?
Che ck
comp one nts a round IC.
RA805, DA805, RA807,
RA809.
Yes
Yes
Yes
Yes
Yes
No
No
No
4-2Copyright©1995-2011SAMSUNG.Allrightsreserved.