34
VSX-1020-K
1
2
3
4
A
B
C
D
E
F
1
2
3
4
Step 5: COMPONENT IN
Step 5-1: HDMI OUT (more than 480p)
C
N
1254 (Pin 14)
Is the voltage
"H" ?
N
o
Yes
COMPDET
Check C
N
1254 and diagnose
the COMPO
N
E
N
T Assy.
P
C
N
1254 (Pins 2,4,6)
Is there a
analog video
signal? *
N
o
Yes
Y_I
N
, CB_I
N
, CR_I
N
* Diagnose it from the COMPO
N
E
N
T Assy side.
Check C
N
1254 and diagnose
the COMPO
N
E
N
T Assy.
Q1151,Q1155,Q1157
(Emitter), (side B)
Are the
signals output at
emitter?
N
o
Yes
SG_A, SG_B, SG_C
Check Q1151, Q1155, Q1157 and
its peripheral circuits.
IC1701 (Pins 2,5-8,12-19,
25-28,59-62,64),R1706
(side B)
Are the
signals output?
N
o
Q** RXHSY
N
C, RX
V
SY
N
C, RXOCLK
Check IC1701 and its peripheral
circuits.
Yes
IC1807,IC1808(side B),
IC1809,IC1810(side B),
IC1811(side B)
(Pins 11-17)
Are the
signals output?
N
o
P** HSY
N
C,
V
SY
N
C, PDE, PDCLK
Check IC1807-IC1811 and its
peripheral circuits.
Yes
To Step 5-2
B
Step 4-3: HDMI IN 4 (Front IN)
To Step 5
C
N
1601 (Pin 18)
Is the voltage
around 5
V
?
N
o
N
G
N
G
Yes
V
+5_F
Check the soldering of C
N
1601.
Diagnose the F-HDMI Assy.
N
G
Diagnose the F-HDMI Assy.
N
G
Diagnose the F-HDMI Assy.
N
G
Check IC1501 and its peripheral
circuits.
Check the source equipment.
C
N
1601 (Pins 15,16)
Does
a signal output in
constant period
?
N
o
Yes
DDC (SDA/SCL)
Check the soldering of C
N
1601.
IC1601 (Pins 25,26,
28,29,31,32,34,35)
Is there
0.5
V
p-p in CLK
and DATA?
N
o
Yes
TMDS signal
IC1601 (Pins 48,49,51,
52,54,55,57,58)
TMDS signal
Check IC1601 and its peripheral
circuits.
Is there
0.5
V
p-p in CLK
and DATA?
N
o
Yes
Check the soldering between
IC1601 and C
N
1601.
C
N
1601
(Pins 1,3,4,6,7,9,10,12)
TMDS signal
Is there
0.5
V
p-p in CLK
and DATA?
N
o
Yes
Check the soldering of C
N
1601.
N
N
O
A
Whole
diagram
Analog IN, HDMI OUT
Содержание VSX-1020-K
Страница 7: ...7 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F 2 2 PANEL FACILITIES Front panel ...
Страница 8: ...8 VSX 1020 K 1 2 3 4 A B C D E F 1 2 3 4 Display ...
Страница 9: ...9 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F Remote control ...
Страница 10: ...10 VSX 1020 K 1 2 3 4 A B C D E F 1 2 3 4 Rear panel ...
Страница 16: ...16 VSX 1020 K 1 2 3 4 A B C D E F 1 2 3 4 4 2 DIGITAL AUDIO BLOCK DIAGRAM N D MAIN ASSY ...
Страница 17: ...17 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F ...
Страница 19: ...19 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F 4 4 DIGITAL VIDEO BLOCK DIAGRAM N D MAIN ASSY ...
Страница 20: ...20 VSX 1020 K 1 2 3 4 A B C D E F 1 2 3 4 4 5 ANALOG VIDEO BLOCK DIAGRAM B COMPONENT ASSY E F VIDE ...
Страница 21: ...21 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F C COMPOSITE ASSY E F VIDEO ASSY ...
Страница 23: ...23 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F O MAIN ASSY J AMP ASSY L HEADPHONE ASSY G F HDMI ASSY K DISPLAY ASSY ...
Страница 24: ...24 VSX 1020 K 1 2 3 4 A B C D E F 1 2 3 4 ...
Страница 61: ...61 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F A J CN5001 F CN7615 O JP4001 F CN7613 D CN3652 Audio Signal Route ...
Страница 67: ...67 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F G K CP3002 2 259 N 5 12 CN1601 ...
Страница 71: ...71 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F M K M POWER SW ASSY 7028069222010 IL N 3 12 CN1405 O CN55 G CN3005 ...
Страница 112: ...112 VSX 1020 K 1 2 3 4 A B C D E F 1 2 3 4 J J AMP ASSY SIDE B CP11 CP10 ...
Страница 113: ...113 VSX 1020 K 5 6 7 8 5 6 7 8 A B C D E F J SIDE B CN5001 CP11 ...