19
7 Troubleshooting Guide
7.1.
Troubleshooting Flowchart
Use the flowchart below to verfiy malfunctions of the unit.
Ɣ5HVHW0HWKRG)DFWRU\6KLSPHQW6WDWXV
1. Turn on the po
w
er o
f
ma
in set.
2
. Press
a
nd hold the po
w
er button
f
or 4 seconds then FL displ
a
y
w
ill sho
w
RE
S
ET
f
or
2
seconds.
3. Turn o
ff
the po
w
er.
Ɣ(QWHULQJ'RFWRU0RGH
1. Turn ON
ma
in set.
2
. Press
ma
in set [
V
olu
m
e -] button, then continue press the [
V
olu
m
e -] & [
V
olu
m
e+] o
f
re
m
ote control. FL displ
a
y
w
ill sho
w
"T
Ȅ
3. Go in the desired option o
f
doctor
m
ode by pressin
g
the button on re
m
ote control. (Re
f
er to Doctor Mode T
a
ble o
f
HTB485)
4.
Af
ter turn o
ff
the po
w
er, you c
a
n exit
f
ro
m
Doctor Mode.
M
a
in set po
w
er ON
Po
w
er do not turn
l
o
r
t
n
o
c
e
t
o
m
e
r
y
b
N
O
r
e
w
o
P
N
O
OK
Chec
k
the c
a
ble connection
f
ro
m
Button PCB to M
a
in PCB.
Chec
k
c
a
ble connection
a
t 3P connector (CN
6
113) o
f
Button PCB.
Chec
k
c
a
ble connection
a
t 5P connector (CN
6
105) o
f
M
a
in PCB.
(No FL displ
a
y)
Chec
k w
ire condition o
f
Button PCB to M
a
in PCB c
a
ble
Chec
k
continuity o
f
the 3P [Button PCB- [M
a
in] c
a
ble
w
ire
f
ro
m
one end to
a
nother.
T
a
ct s
w
itch oper
a
tion chec
k
.
V
olt
ag
e chec
k a
cross the po
w
er s
w
itch. When button PCB po
w
er s
w
itch
S6
101 is press
ĺ9
rele
a
se
ĺ9
to 3.5
V
.
V
olt
ag
e chec
k
1) +F to -F (
f
il
am
ent volt
ag
e
a
cross FL pin 1 to pin 3
7
) =
a
bout
2
.8
V
,
2
)
V
H =
a
bout 33
V
(FL pin
7
to GND), 3)
V
DD =
a
bout 3.3
V
(FL pin 18 to GND)
Po
w
er ON by re
m
ote control
NG
Chec
k
the connection o
f
FFC connector
w
ire [M
a
in PCB]-[P
a
nel PCB]
I
f
set h
a
ve no po
w
er
a
nd displ
a
y, chec
k
[P
a
nel]
&1ĺ9
I
f
set c
a
n po
w
er ON but no displ
a
y,
chec
k
[P
a
nel]
&1ĺ9
CN3
ĺ9 &1ĺ9
Chec
k
15P FFC connectors CN3300
[P
a
nel]
a
nd CN
2
008 [M
a
in]
a
nd
w
ire connection. Chec
k 7
P connectors CN1 [
Sw
itchin
g
po
w
er
m
odule]
a
nd
CN
2
004 [M
a
in]
a
nd
w
ire connection.
Chec
k
the po
w
er supply output o
f S
MP
S
Chec
k
the
A
C inlet
a
nd
A
C cord
[
Sw
itchin
g
po
w
er
m
odule] CN1(
6
or
7
)
ĺ
7V
(
a
t st
a
ndby);
2
0
V
or 30
V
(
a
t po
w
er ON),
[M
a
in] IC
22
0
2
(4
ĺ
V
to 3.9
V
Chec
k f
use cut
Chec
k Sw
itchin
g
po
w
er
m
odule
A
C inlet solder condition
a
nd
A
C cord insertion condition.
Chec
k
the continuity o
f
[
Sw
itchin
g
po
w
er
m
odule] F1.
Po
w
er input but turn o
ff
i
mm
edi
a
tely
Error contents
n
il
b
L
F
g
n
i
r
u
d
t
i
n
u
e
h
t
f
f
o
r
e
w
o
P
6
7
F
k
in
g
o
f
F
76
(
2
50
m
s ON/
2
50
m
s OFF).
Chec
k
e
a
ch DC supply output volt
ag
e (e
g
+13
V
, +
6V
, +5
V
, +3.9
V
, +3.3
V
,+1.8
V
)
Error contents
F
6
Po
w
er o
ff
the unit durin
g
FL blin
k
in
g
o
f
F
6
1 (
2
50
m
s ON/
2
50
m
s OFF).
Chec
k
the IC overcurrent
overhe
a
tin
g
fa
ilure o
f
[Di
g
it
a
l
Am
pli
f
ier
@ĺ
[Di
g
it
a
l
Am
pli
f
ier] exch
a
n
g
e.
Po
w
er input but FL displ
a
y error
Error contents
.
f
f
o
r
e
w
o
p
r
e
s
u
s
s
e
l
n
u
y
l
d
e
t
a
e
p
e
r
F
F
O
s
m
0
5
2
/
N
O
s
m
0
5
2
h
t
i
w
g
n
i
k
n
il
B
T
B
0
7
F
[M
a
in] BT & co
mm
unic
a
tion error o
f
the
PLFURFRPSXWHUĺ>
M
a
in] bo
a
rd exch
a
n
g
e or [BT]
m
odule exch
a
n
g
e.
Error contents
s
m
0
5
2
/
N
O
s
m
0
5
2
h
t
i
w
g
n
i
k
n
il
B
P
A
D
0
7
F
OFF repe
a
tedly unless user po
w
er o
ff
.
[M
a
in], IC o
f
[Di
g
it
a
l
Am
pli
f
ier] D
A
MP & co
mm
unic
a
tion error o
f
the
m
icroco
m
pu
WHUĺ>
M
a
in] bo
a
rd exch
a
n
g
e.
Error contents
m
0
5
2
/
N
O
s
m
0
5
2
h
t
i
w
g
n
i
k
n
il
B
I
M
D
H
0
7
F
s OFF repe
a
tedly unless user po
w
er o
ff
.
[M
a
in] IC o
f
HDMI & co
mm
unic
a
tion error o
f
the
PLFURFRPSXWHUĺ>
M
a
in] bo
a
rd or [HDMI] bo
a
rd exch
a
n
g
e.
Error contents
U
7
01/
7
03/
7
04
Blin
k
in
g w
ith
2
50
m
s ON /
2
50
m
s OFF repe
a
tedly unless user po
w
er o
ff
.
Try once to "On / O
ff
" the po
w
er o
f
the connected device. Try to connect or disconnect the HDMI c
a
ble.
Fuse cut
Af
ter repl
a
ce
m
ent, cut
aga
in
a
t outlet connection
The pri
ma
ry side o
f ma
in po
w
er supply
a
bnor
ma
l
Chec
k
the continuity o
f
pri
ma
ry side po
w
er circuit
S
hort-open po
w
er tr
a
ns
f
or
m
er, electrolytic diode IC · [s
w
itchin
g
po
w
er
m
odule].
(D5
7
01, C5
7
1
2
, IC5
7
01, T5
7
01)
Af
ter repl
a
ce
m
ent, cut
aga
in
a
t po
w
er on
The second
a
ry side o
f
ma
in po
w
er supply
a
bnor
ma
l
Chec
k
the continuity o
f
second
a
ry side po
w
er circuit
S
hort-open po
w
er-electrolytic IC diode [s
w
itchin
g
po
w
er
m
odule]
(D580
2
, C5805, IC5801)
FL displ
a
y chec
k
in
g
Chec
k
the
a
ll se
gm
ents displ
a
y by Doctor Mode
S
o
m
e FL se
gm
ent not li
g
htin
g
F
a
ilure o
f
FL Displ
a
y (FL3300)
Ch
a
n
g
e to
a
ne
w
FL Displ
a
y (FL3300) on the p
a
nel PCB.
A
udio con
f
ir
ma
tion
No
a
udio output (OPT input 1 syste
m
)
HDMI input (1 syste
m
) voice
a
ppe
a
r
Chec
k
the OPT ter
m
in
a
l
OPT c
a
ble
Chec
k
the [M
a
in Di
g
it
a
l
Am
pli
f
ier]
J
K1
6
01 (1)
ĺ
3.3
V
output (3)
S
PDIF
wa
ve
f
or
m
.
No
a
udio output (HDMI input 1 syste
m
)
OPT (1
t
u
p
n
I
f
o
e
r
u
li
a
f
e
h
T
r
a
e
p
p
a
e
c
i
o
v
)
m
e
t
s
y
s
HDMI c
a
ble
D
S
P syste
m
s
Chec
k
the [HDMI]-[M
a
in Di
g
it
a
l
Am
pli
f
ier] 30P FFC
connector
No
a
udio output (HDMI/
A
RC supp
C
r
a
e
p
p
a
e
c
i
o
v
)
m
e
t
s
y
s
1
(
T
P
O
)
t
r
o
hec
k
the
A
RC circuit
fa
ilure
HDMI c
a
ble
Chec
k
the [HDMI]-[M
a
in Di
g
it
a
l
Am
pli
f
ier] 30P FFC
connector
T
E
F
P
M
A
D
t
a
e
r
u
li
a
f
e
h
T
l
a
m
r
o
n
e
c
i
o
v
r
e
f
o
o
w
b
u
S
r
e
k
a
e
p
s
t
n
o
r
f
t
i
n
u
r
a
b
d
n
u
o
s
n
i
a
m
m
o
r
f
d
n
u
o
s
o
N
Chec
k
pin 1 to 3, pin 4 to 3 o
f
Q5404, Q5403, Q5303, Q5304, Q5504, Q5503, i
f
shorted, FET d
amag
ed.
S
ub
w
oo
f
er
6%
-HWA480
sound s
k
ip
e
h
t
k
c
e
h
C
l
a
m
r
o
n
e
c
i
o
v
r
e
k
a
e
p
s
t
n
o
r
F
r
a
dio
wa
ve inter
f
erence o
f
other
w
ireless e
q
uip
m
ent (
2
.4GHz b
a
nd)
S
ub
w
oo
f
er & other e
q
uip
m
ent need to put
awa
y
m
ore th
a
n
2 m
eter
F
a
ilure o
f
(tr
a
ns
m
itter / receiver) r
a
dio bo
a
rd
S
ub
w
oo
f
er
6%
-HWA4
no sound
n
o
i
t
c
e
n
n
o
c
s
s
e
l
e
r
i
w
r
e
f
o
o
w
b
u
s
&
t
i
n
u
n
i
a
m
e
h
t
k
c
e
h
C
l
a
m
r
o
n
e
c
i
o
v
r
e
k
a
e
p
s
t
n
o
r
F
Wireless lin
k
li
g
ht chec
k
in
g
(
S
B-HW
A
480 upper le
f
t
f
ront)
t
i
u
c
r
i
c
r
e
i
f
il
p
m
a
D
r
e
f
o
o
w
b
u
s
e
h
t
k
c
e
h
C
p
u
s
t
h
g
il
n
e
e
r
G
F
a
ilure o
f
(IC5
2
00 D
am
pli
f
ier [Di
g
it
a
l
Am
pli
f
ier] sub
w
oo
f
er
n
o
i
t
c
e
n
n
o
c
s
s
e
l
e
r
i
w
f
o
s
k
n
il
n
e
k
o
r
b
e
h
t
k
c
e
h
C
p
u
s
t
h
g
il
d
e
R
"On / O
ff
" po
w
er o
f
the
am
pli
f
ier unit / sub
w
oo
f
er, connect or disconnect o
f
the sub
w
oo
f
er po
w
er cord,
Chec
k
the p
a
irin
g
st
a
tus
Execute p
a
irin
g
procedure o
f
suib
w
oo
f
er
w
ith
ma
in set
F
a
ilure o
f
(tr
a
ns
m
itter / receiver) r
a
dio bo
a
rd
S
ub Woo
f
er
S
B-HW
A
480
Summary of Contents for SU-HTB485EB
Page 4: ...4 1 2 Caution for AC Cord For EB only Figure 1 2 ...
Page 13: ...13 5 2 Remote Control Key Button Operations ...
Page 25: ...25 8 3 Types of Screws 8 3 1 Main Speaker Unit SU HTB485 8 3 2 Active Subwoofer SB HWA480 ...
Page 33: ...33 Step 5 Remove 2 screws Step 6 Remove HDMI P C B ...
Page 35: ...35 Step 9 Slightly lift up Main P C B Step 10 Remove Main P C B ...
Page 36: ...36 Step 11 Slightly lift up Connecting Plate Assembly Unit Step 12 Release Main P C B ...
Page 54: ...54 ...
Page 64: ...64 ...
Page 94: ...94 ...
