5-4
Trouble
shooting
Chart
No audio output
No
audio
output
Go
No
Yes
Yes
Yes
R
eplace
Amplifier
Board
No
R
eplace
U8
on
Main
Board
or
replace
Main
Board
Yes
R
efer
to
XP501
on
Power
Board
No
Check
voltage
+34.5V
(34V
for
HTS3564)
(41V
for
HTS3251)
for
whether
normal
or
not
at
on
Amplifier
Board
Check
the
24Pin
FF
C
connection
XP13
on
Main
Board
and
XP702
on
Amplifier
Board
whether
right
or
not
between
Main
Board
and
Amplifier
Board
Check
the
control
signal
whether
right
or
not
at
the
U8
Pin6,
Pin7
on
Main
Board
and
the
signal
at
the
XP13
Pin15
Pin16
Pin3
Check
XP13
Pin
14&16
3.3V
on
Main
Board
whether
normal
or
not
Summary of Contents for HTS3564
Page 16: ...MUSIC iLINK 2 1 1 3 2 3 3 5MM STEREO 2 8 ...
Page 17: ...LAN LAN 1 2 9 ...
Page 52: ...7 16 Front Control Board Print layout top side 7 16 ...
Page 53: ...7 17 7 17 Amplifier Board Print layout top side ...
Page 54: ...7 18 7 18 Amplifier Board Print layout bottom side ...
Page 55: ...7 19 7 19 Power Supply Print layout top side ...
Page 56: ...Main Board Print layout top side 7 20 7 20 ...
Page 57: ...7 21 7 21 Main Board Print layout bottom side ...
