3
8
VSX-
8
21-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
* when connected the equipment
to I
N
1 (
V
IDEO):
* when connected the equipment
to I
N
1 (
V
IDEO):
* when connected the equipment
to I
N
1 (
V
IDEO):
+5
V
_R3
Check the JACK1303.
If JACK1303 is failure,
replace JACK1303.
JACK1302 (pin 18)//+5
V
_R2//I
N
2 (BD)
JACK1301 (pin 18)//+5
V
_R1//I
N
3 (D
V
D)
JACK1300 (pin 18)//+5
V
_R0//I
N
4 (D
V
R/BDR)
N
o
Check the JACK1303.
If JACK1303 is failure,
replace JACK1303.
N
o
(0 to 5
V
)
Check the JACK1303 and
IC1303. If JACK1303 or
IC1303 failure, replace
JACK1303 or IC1303.
N
o
Repeat
Yes
JACK1302 (pin 18)//+5
V
_R2//I
N
2 (BD)
JACK1301 (pin 18)//+5
V
_R1//I
N
3 (D
V
D)
JACK1300 (pin 18)//+5
V
_R0//I
N
4 (D
V
R/BDR)
JACK1302 (pin 18)//+5
V
_R2//I
N
2 (BD)
JACK1301 (pin 18)//+5
V
_R1//I
N
3 (D
V
D)
JACK1300 (pin 18)//+5
V
_R0//I
N
4 (D
V
R/BDR)
Yes
JACK1303 (pin 18)
Is the voltage 5
V
?
HPD_SI
N
K
HPD3
Yes
JACK1303 (pin 19)
JACK1303 (pin 19)
Is the voltage 5
V
?
Is the voltage 5
V
when
selecting I
N
3?
Step 5: INPUT/OUTPUT Diagnosis
Step 6: Hot Plug Detect
Yes
To Step 6
Yes
To Step 7
Repeat
SDA (HDMI_OUT)
Check the JACK1304 and
IC1308. If JACK1304 or
IC1308 is failure, replace
JACK1304 or IC1308.
N
o
Check the JACK1304 and
IC1308. If JACK1304 or
IC1308 is failure, replace
JACK1304 or IC1308.
N
o
Check the IC1308 and
IC1303. If IC1308 or
IC1303 is failure, replace
IC1308 or IC1303.
N
o
Repeat
Yes
IC1308 (pin 47)
Does a signal output
in constant period
(0 to 5
V
)?
Does a signal output
in constant period
(0 to 5
V
)?
SCL (HDMI_OUT)
SDA _SI
N
K
IC1308 (pin 46)
Yes
Is there a same signal
as IC1308-pin 24
(0 to 3.3
V
)?
Check the IC1308 and
IC1303. If IC1308 or
IC1303 is failure, replace
IC1308 or IC1303.
N
o
Check the IC1308 and
JACK1303. If IC1308 or
JACK1303 is failure,
replace IC1308 or JACK1303.
N
o
Check the IC1308 and
JACK1303. If IC1308 or
JACK1303 is failure,
replace IC1308 or JACK1303.
N
o
Is there a same signal
as IC1308-pin 23
(0 to 3.3
V
)?
IC1308 (pin 49)
SCL_SI
N
K
Yes
IC1308 (pin 48)
SDA3 (HDMI I
N
1(
V
IDEO))
Yes
IC1303 (pin 44)
SCL3 (HDMI I
N
1(
V
IDEO))
Yes
Yes
IC1303 (pin 43)
Is there a same signal
as IC1308 pin 49 when
selecting I
N
1?
(0 to 5
V
)
Is there a same signal
as IC1308 pin 48 when
selecting I
N
1?
Step 7: SDA /SCL
C
Содержание VSX-521-K
Страница 13: ...13 VSX 821 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 17: ...17 VSX 821 K 5 6 7 8 5 6 7 8 A B C D E F D MAIN ASSY C AMP ASSY D MAIN ASSY E SUBWOOFER ASSY ...
Страница 19: ...19 VSX 821 K 5 6 7 8 5 6 7 8 A B C D E F D MAIN ASSY B AMP ASSY D MAIN ASSY E SUBWOOFER ASSY ed ...
Страница 21: ...21 VSX 821 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 22: ...22 VSX 821 K 1 2 3 4 A B C D E F 1 2 3 4 4 5 D MAIN BLOCK DIAGRAM for VSX 921 K T D MAIN ASSY ...
Страница 23: ...23 VSX 821 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 27: ...27 VSX 821 K 5 6 7 8 5 6 7 8 A B C D E F only P CPU ASSY Not used ...
Страница 47: ...47 VSX 821 K 5 6 7 8 5 6 7 8 A B C D E F 2 TEMP Protection Circuit P CPU ASSY C B AMP ASSY C B AMP ASSY ...
Страница 69: ...69 VSX 821 K 5 6 7 8 5 6 7 8 A B C D E F ...