5-2
Trouble
shooting
Chart
keys do not work
keys
do
not
work
Go
No
F
ix
the
connection
XP2
to
XP8
on
Main
Board
Yes
R
eplace
U4
on
Main
Board,
or
replace
Main
Board
No
Yes
R
eplace
U135
on
F
ront
Board
Check
voltage
+5V
on
F
ront
Board
U135
PIN38
Check
F
ront
Control
Board
signals
at
XP2
Pin8
VSC
L
K,
Pin7
VSDA,Pin6
VSTB
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 ...