Pioneer PRO-720HD Service Manual page 26

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PRO-720HD, PRO-620HD, PRO-520HD
3.1.3 SIGNAL ASSY
A
B
Video Block
VY
SUB. VY
CN2454
C
MHD
MVD
3
SCPO
H. BLK
3
TY
TB-Y
TR-Y
CN7501
Tuner Block
RF SW
AXF1088
ANT A
D
ANT B
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1
2
A
SIGNAL ASSY
Sub-color Sub-color
Demodulation Demodulation
Block Block
2 Line Y/C 2 Line Y/C
Block Block
AV I/O AV I/O
Component Component
Block Block
Y
3D Y/C Main-color
Sep. Demodulation
C
BLock BLock
MHD
3
MCCY
MVD
SCP0
SUB.Y
2L Y/C
Sub-color
Sep.
Demodulation
SUB.C
BLock BLock
MVD
3
Single- 3
TWIN-P
screen
3
Block
Y
or
B-Y
Sprit-
R-Y
screens
SW Block
3
MCCY
SCCY
A
SIGNAL ASSY
AMP
Tuner 2 Audio
FE2
MTS
SW
IC2802
Tuner 1 Audio
FE1
AMP
2
3
Twin Picture Block Twin Picture Block
Main-color Main-color
Demodulation Block Demodulation Block
FE2 FE2
Tuner Block Tuner Block
FE1 FE1
MY
MB-Y
MR-Y
SY
SB-Y
SR-Y
TV2-V (1Vp-p)
TV-L
MTS
To
DECODER
AV I/O Block
TV-R
IC2801
TV1-V (1Vp-p)
3
4
3D Y/C Sep. 3D Y/C Sep.
Block Block
Main Main
Microcomputer Microcomputer
Block Block
IC2454
EEPROM
Note :
Main picture is able to receive the
ANT A and B.
Sub picuture is able to receive the
ANT A only.
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