JVC JX-S555 Schematics
Block Diagrams
JX-S555(J)
IC101
INPUT1
INPUT2
INPUT3
(FRONT)
INPUT4
INPUT5
COMPONENT
INPUT4
VIDEO
S-VIDEO
AUDIO
VIDEO
S-VIDEO
AUDIO
VIDEO
S-VIDEO
AUDIO
S-VIDEO
AUDIO
S-VIDEO
AUDIO
VIDEO
OPTICAL
AUDIO
SOURCE
SELECT
VIDEO
S-VIDEO
AUDIO
VIDEO
(MONITOR)
S-VIDEO
(MONITOR)
AUDIO
(MONITOR)
6dB
IC401-402
SOURCE
SELECT
6dB
6dB
6dB
6dB
S/V
Y/C MIXER
S/V
Y/C MIXER
Y/C MIXER
COMPONENT VIDEO
(MONITOR)
S/V
S/V
1-4 VIDEO
M101
Y/C
SEPARATOR
AUDIO
1-4 VIDEO
(MONITOR)
M102
Y/C
SEPARATOR
AUDIO
(MONITOR)
5 VIDEO
5 S-VIDEO
IC103
1-4
/5
5VIDEO
1-4 S-VIDEO
IC103
1-4
/5
5VIDEO
1-4 S-VIDEO
(MONITOR)
6dB
VIDEO
IC102
IC104
S-VIDEO
1-4
/5
AUDIO
5S-VIDEO
IC102
IC104
1-4
/5
5S-VIDEO
COMPONENT VIDEO
(MONITOR)
LOOP
PROTECT
IC106-108
IC808-809
VIDEO
(MONITOR)
S-VIDEO
(MONITOR)
AUDIO
(MONITOR)
VIDEO
S-VIDEO
S-VIDEO
S-VIDEO
S-VIDEO
COMPONENT
OUTPUT1
AUDIO
VIDEO
OUTPUT2
AUDIO
VIDEO
MONITOR
OUTPUT1
AUDIO
AUDIO
MONITOR
OUTPUT2
VIDEO
COMPONENT
INPUT5
VIDEO
OPTICAL
AUDIO
IC403
SOURCE
SELECT
OPTICAL AUDIO
(MONITOR)
AUDIO
AUDIO
OPTICAL
AUDIO
(No. 70251SCH) 1
JX-S555(J)
Notes on this schematic diagram
1. Values are voltages measured with a circuit tester (internal resistance: 20 k /V)
at respective points of the circuits with the power switch turned on.
2. The circuit diagram printed in this service manual is just a standard. The circuitry
and circuit constants are subject to change for improvement without notice.
Schematic Diagrams
VIDEO 1 BLOCK
M101
J46729-002
4.5V
4.0V
4.5V
4.5V
4.0V
4.5V
4.3V0V3.2V
4.0V
4.5V
4.0V
4.5V
4.4V
0.3V
5.0V
4.0V
4.5V
4.0V
4.5V
4.4V
0.3V
5.0V
4.0V
4.5V
4.0V
4.5V
4.4V
3.7V
4.5V
3.6V
4.5V
4.4V
4.5V
4.0V
0V
0V
0V
4.0V
0V
4.2V
9.0V
3.6V
4.5V
3.2V
4.5V
4.3V
0V
0V
3.5V
3.5V
1.7V
1.7V
5.7V
1.7V
1.1V
5.7V
1.1V
5.9V
5.7V
1.1V
1.6V
9.1V 3.7V 1.6V 0V 6.1V
5.3V
-2.3V
-2.9V
5.9V
5.9V
1.6V
1.6V
-5.7V
5.9V
1.3V
1.6V -5.7V
-6.0V
-6.0V
1.3V
-6.0V
5.7V
3.4V
0.7V
-0.7V
-1.3V
5.9V
2.8V
5.9V
5.3V
3.4V
M102
J46729-002
5.6V
1.6V
1.0V
5.9V
5.9V
5.9V
1.6V
1.6V
1.6V
1.6V
-5.7V
9.1V 3.7V 1.6V 0V 6.1V
5.9V
5.3V
1.6V
-6.0V
-2.3V
-2.9V
1.6V
-6.0V
1.2V
-5.7V
-6.0V
-0.7V
5.7V
1.2V
3.4V
0.6V
-1.3V
5.9V
5.3V
3.4V
5.9V
2.7V
-1.7V
-2.3V
0.3V
5.0V
4.0V
4.5V
4.0V
4.5V
4.4V
5.9V
5.3V
-1.5V
-2.1V
5.9V
5.3V
1.5V
5.9V
1.7V
1.0V
4.9V
0.4V
-0.2V
5.9V
0.9V
4.2V
-0.9V
-0.3V
0.8V
0.2V-0.2V
-3.6V
0V0V0V
0.3V
5.0V
0V
5.7V
-6.0V
1.7V
1.1V
5.7V
1.7V
1.1V
-6.0V
5.9V
-6.0V
5.9V
-6.0V
5.9V
5.9V
5.9V
1.6V
1.6V
1.6V
1.6V -5.7V
1.6V
-5.7V
-6.0V
-6.0V
-6.0V
C223
4700u
10v
TO VIDEO 2 BLK
2 (No. 70251SCH)
FROM CPU-BLOCK
VIDEO 2 BLOCK
Notes on this schematic diagram
1. Values are voltages measured with a circuit tester (internal resistance: 20 k /V)
at respective points of the circuits with the power switch turned on.
2. The circuit diagram printed in this service manual is just a standard. The circuitry
and circuit constants are subject to change for improvement without notice.
JX-S555(J)
FROM VIDEO 1 BLOCK
-0.5V
5.9V
0V
0V
0V
5.9V
0V
0V
0V
5.7V
0V
-0.6V
-5.6V
5.7V
0.1V
-5.5V
-5.9V
5.9V
1.6V
0.9V
5.9V
1.6V
1.0V
5.9V
1.6V
0.9V
5.9V
1.6V
0.8V
5.9V
-5.9V
5.9V
-5.9V
5.9V
-3.7V
-6.0V
1.0V
-6.0V
0.9V
-6.0V
0.9V
0.9V
1.0V
0.9V
-6.0V
0.8V
5.2V
-6.0V
-6.0V
0.9V
5.2V
-6.0V
0.9V
-6.0V
0.9V
5.2V
-6.0V
5.9V
-3.7V
-4.1V
5.9V
0.3V
0V
-6.0V
-5.9V
0V
-6.0V
0.7V
-5.9V
-6.0V
0.8V
-5.9V
-6.0V
FROM CPU BLOCK
5.9V
1.6V
0.8V
0.8V
-5.9V
-6.0V
5.9V
1.6V
1.0V
5.9V
1.0V
0.3V
5.9V
1.0V
0.3V
-6.0V
0.8V
-6.0V
-5.9V
-0.5V
0.8V
-5.9V
-0.5V
5.7V
0.1V
-0.5V
-5.5V
5.7V
0.1V
-5.5V
5.7V
0.1V
-5.5V
(No. 70251SCH) 3
JX-S555(J)
Notes on this schematic diagram
1. Values are voltages measured with a circuit tester (internal resistance: 20 k /V)
at respective points of the circuits with the power switch turned on.
2. The circuit diagram printed in this service manual is just a standard. The circuitry
and circuit constants are subject to change for improvement without notice.
COMPONENT BLOCK
5.9V
0V
5.5V
5.2V
5.9V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
-6.0V
0V
5.9V
-0.7V
-1.4V
3.0V
5.9V
2.3V
2.1V
-6.0V
-5.9V
2.1V
1.5V
0.9V
-5.4V
5.9V
0V
5.2V
5.9V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
0V
-6.0V
0V
0V
-1.4V
-0.7V
3.0V
5.9V
0V
-0.7V
5.9V
-1.4V
2.3V
5.2V
5.9V
3.0V
5.9V
2.3V
2.1V
-6.0V
5.9V
-5.9V
2.1V
-6.0V
5.5V
2.1V
1.5V
0.9V
-5.4V
5.5V
-5.9V
0.9V
-5.4V
4 (No. 70251SCH)
FROM CPU BLK
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