HT-CN150DVW
13
TROUBLESHOOTING
TROUBLESHOOTING CHART (1/3)
A
Yes
No
No
No
Ye
s
B
No
Ye
s
No
No
Ye
s
Ye
s
No
Ye
s
NO
Ch
ec
k
M
ai
n
B
o
ar
d
YE
S
NO
Re
p
ai
r
C
N
201 P
IN
5 c
ir
cui
t s
h
o
rt
NO
YE
S
NO
YE
S
NO
YE
S
YE
S
NO
YE
S
YE
S
t
NO
YE
S
NO
CE
DF
G
BH
A
IJ
KL
YE
S
YE
S
NO
Ch
ec
k
M
ai
n
B
o
ar
d
YE
S
YE
S
Y
E
S
YE
S
IC
201 I
C
202
IC
2
0
2
F
ix
s
o
ft
w
re
Ch
ec
k
I
C
1
1
0
C
h
ec
k
I
C
110 P
IN
5
1 D
S
C
K
s
ig
n
al
NO
C
ir
cui
t I
C
201 t
o I
C
202
C
ir
cui
t I
C
201 t
o I
C
203
YE
S
Ch
ec
k
No
Ye
s
No
Ye
s
Ye
s
No
Ye
s
IC
205 P
IN
8
5V
IC
205 o
r I
C
205 pe
ri
ph
er
y
IC
505 pe
ri
ph
er
y
IC
405 P
IN
42 c
ir
cui
t s
h
o
rt
NO
IC
203 ci
rc
ui
t
NO
Re
n
ew
al
b
as
ta
rd
Ye
s
No
Repair
IC208 circuit
IC209 circuit short
IC201 pin short 1 10 19
35 44 53 62 96 104 185
IC202 pin short 13 14 27
IC201 pin short1 3 9 14 27 43 49
IC201 pin short1 3 9 14 27 43 49
RA201 IC204 circuit short
Repair
IC201 circuit
XL201 circuit
Repair
IC105Circuit
Check Main Board
IC208PIN3 3.3V
Check Main Board
IC201 PIN207=Rese
IC 201 PIN20(OSC
frequency 27MHZ)
Check Main Board
IC204 PIN3 =3.3V
Check Main Board
IC953 or IC953 periphery
IC208 or IC208 periphery
IC201 or IC201 periphery
IC801 or IC801 periphery
Repair
IC210 circuit
IC801 pin 35 47 ircuit short
IC201 pin 147 152
170 ircuit short
IC351 pin 5 ircuit short
Renewal bastard
Check Main Board
IC953 PIN3 5 V
Check Main Board
IC210 PIN3 3.3V
Check
IC801 IC201 IC351
Confirm IC801
IC201 IC351 OK
Check C285 anode
to IC953 PIN3 return
Check CN902 voltage
PIN1 6.8VPIN7 8 AC
PIN3 12VPIN2 4 6 GND
PIN5 -24 V
Check Power
Board
Check Main Board
C285 Anode 5V
Check
IC801
PIN 19 58 circuit open
Check Main Board
IC954 or IC954 periphery
Check Main Board
IC954 PIN3 5 V
Repair F1
Repair
Power T901
Circuit
Test CN903 PIN2
20>STB>12V
All function
No Working
Check All System
All cable is loose
or bad INT
Panel stanby LED
show Working or Not
Check Main Board
CN202PIN4:
12V<PIN4<16V
Check Main Board
CN202PIN3:
5V
Check Main Board
CN903PIN1
3.5V
RE-Insert and fix
the cable
Repair
Control Board
IC 201A circuit
(HT48R05A)
Repair power
Supply circuit
Check Power
Boaed
No Output
AM FM
Disc Or Intermittent
Cannot Read The
No Sound
Ear Head Phone
No Output
SCART SUB OUT
No Output
AV CONNECTOR
No Output
S-Video
No Output
Video
No Output
OPTICAL
No Output
AUDIO L/R
No Output
5.1-CH.STEREO
And Key Function
No Show
VFD Display
No Working
All Function
MAIN UNIT REPAIR CHART
VFD Display
Renewal IC201A
Repair XL301 Circuit
to RB201 Return
IC201A
Repair between the
IC202A Circuit
to VFD Display
Main board IC201
Repair between the
Supply circuit
Repair power
the cable
RE-Insert and fix
No Show
Check Control Board
CN201 CN202
Cable loose or bad INT
And Key Function
Check RB201
Pin7 8 : AC Pin 6: -24V Pin5 5V
Pin13 12V-16V
PIN12 5V
IC301 Circuit
Check
(OSC frequency 455KHZ)
Check IC201A Fettle
XL301 Check
IC201A ( PIN 12 Voltage)
Check Control
Check Control
IC202A ( Data,CLK,STB )
Pin8:CLKPin5 6: Data
Pin9:STB
7
8
A
B
C
D
E
1
23
45
6