DOWNLOAD Panasonic AG-MX70E / AG-MX70MC / AG-YA70P / AG-VE70P Service Manual ↓ Size: 30.43 MB | Pages: 127 in PDF or view online for FREE

Model
AG-MX70E AG-MX70MC AG-YA70P AG-VE70P
Pages
127
Size
30.43 MB
Type
PDF
Document
Service Manual
Brand
Device
Provideo / DIGITAL AV MIXER
File
ag-mx70e-ag-mx70mc-ag-ya70p-ag-ve70p.pdf
Date
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Panasonic AG-MX70E / AG-MX70MC / AG-YA70P / AG-VE70P Service Manual ▷ View online

DIS - 3
7. Removal the Jack Unit
1. Remove the Power Unit.
2. Unscrew the 5 screws (A).
3. Disconnect connectors P361, P366, P1111, and
P1112, unlock connector P365, and disconnect the
flexible cable.
4. Slide the Main P.C.Board in the direction indicated
by the arrow and disconnect connector P360.
5. Lift the Main P.C.Board as shown in the illustration,
disconnect connector P364, and remove the Main
P.C.Board.
6. Unscrew the 4 screws (B).
7. Unscrew the 2 screws (C) and remove the Jack
Unit along with the Main Case.
8. Unscrew the 6 screws (D) and separate the Jack
Unit from the Main Case.
SCREW
(A)
P361
P366
P1112 P1111
P365 P360
P364
MAIN P.C.BORAD
MAIN P.C.BORAD
SCREW (B)
SCREW (C)
JACK UNIT
MAIN CASE
SCREW (D)
JACK UNIT
MAIN CASE
ELECTRICAL ADJUSTMENTS
CONTENTS
1. MAIN ....................................................................................................................... EAD-1
1-1.
PLL Free run frequency adjustment ...................................................................................... EAD-1
1-2.
Adjustment of Y output gain of component signals ............................................................... EAD-1
1-3.
Adjustment of PB output gain of component signals............................................................. EAD-1
1-4.
Adjustment of PR output gain of component signals ............................................................ EAD-1
1-5.
Adjustment of output gain of composite signals .................................................................... EAD-2
1-6.
Adjust output gain of PVW (preview)..................................................................................... EAD-2
1-7.
Adjustment of output gain of Y/C (S terminal) signals........................................................... EAD-2
1-8.
Adjustment of output gain of ADV-REF signals..................................................................... EAD-2
1-9.
Preparation before starting the adjustment menu ................................................................. EAD-3
1-10.
Starting the adjustment menu................................................................................................ EAD-3
1-11.
SCH adjustment .................................................................................................................... EAD-3
1-12.
Adjust component Y input signal gain of the A bus ............................................................... EAD-4
1-13.
Adjust component PB input signal gain of the A bus ............................................................ EAD-4
1-14.
Adjust component PR input signal gain of the A bus ............................................................ EAD-4
1-15.
Adjust component Y input signal gain of the B bus ............................................................... EAD-5
1-16.
Adjust component PB input signal gain of the B bus ............................................................ EAD-5
1-17.
Adjust component PR input signal gain of the B bus ............................................................ EAD-5
1-18.
Adjustment of EXT input signal gain ..................................................................................... EAD-6
1-19.
Adjustment of EXT input signal PB offset.............................................................................. EAD-6
1-20.
Adjustment of EXT input signal PR offset ............................................................................. EAD-6
1-21.
Adjustment of EXT input signal PB gain................................................................................ EAD-7
1-22.
Adjustment of EXT input signal PR gain ............................................................................... EAD-7
EAD-1
1. MAIN
1-1. PLL Free Run Frequency
Adjustment
BOARD
MAIN BOARD
TP
TP1393
ADJ.
VR1490
INPUT
No Input to EXT-Y, EXT-Key, and G/L
MODE
M.EQ
Frequency Counter
SPEC.
Within 27, 000, 000 MHz ±30 Hz
1.
Measure TP1393 with the frequency counter and
adjust VR1490 so it meets the above
specifications.
Note:
If there are input signals to EXT-Y, EXT-Key, and
G/L, PLL will respond to the signals so there will be no
change even if you adjust the frequency with VR1490.
1-2. Adjustment of Y output gain
of component signals
BOARD
MAIN BOARD
TP
VIDEO OUT, Y1 or Y2
ADJ.
VR1524 (Y)
INPUT
MODE
Cross point: A bus, B bus = INT
LCD menu: Int Video = colorbar
M.EQ
Oscilloscope
SPEC.
Y level: within 700±14 mV
1.
Adjust VR1524 (Y) so the Y1 or Y2 level of VIDEO
OUT becomes 700±14 mV.
1-3. Adjustment of PB output gain
of component signals
BOARD
MAIN BOARD
TP
VIDEO OUT, PB1 or PB2
ADJ.
VR1522 (PB)
INPUT
MODE
Cross point: A bus, B bus = INT
LCD menu: Int Video = colorbar
M.EQ
Oscilloscope
SPEC.
PB level: within 525±10 mV
1.
Adjust VR1522 (PB) so the PB1 or PB2 level of
VIDEO OUT becomes 525±10 mV.
1-4. Adjustment of PR output gain
of component signals
BOARD
MAIN BOARD
TP
VIDEO OUT, PR1 or PR2
ADJ.
VR1520 (PR)
INPUT
MODE
Cross point: A bus, B bus = INT
LCD menu: Int Video = colorbar
M.EQ
Oscilloscope
SPEC.
PR level: within 525±10 mV
1.
Adjust VR1520 (PR) so the PR1 or PR2 level of
VIDEO OUT becomes 525±10 mV.
PB LEVEL
PR LEVEL
Y LEVEL
PR LEVEL
EAD-2
1-5. Adjustment of output gain of
composite signals
BOARD
MAIN BOARD
TP
VIDEO OUT, V1 or V2
ADJ.
VR1525 (VIDEO)
INPUT
MODE
Cross point: A bus, B bus = INT
LCD menu: Int Video = color bar
M.EQ
Oscilloscope
SPEC.
A = within 700±14mV
1.
Adjust VR1525 (VIDEO) so the composite signal
output level of V1 or V2 level of VIDEO OUT
becomes 700±14mV.
1-6. Adjust output gain of PVW
(preview)
BOARD
MAIN BOARD
TP
PREVIEW
ADJ.
VR1521 (AUX)
INPUT
MODE
Cross point: A bus, B bus = INT
LCD menu: Int Video = color bar
M.EQ
Oscilloscope
SPEC.
A = within 700±14mV
1.
Adjust VR1521 (AUX) so the composite signal
output
level
PVW
(preview)
becomes
700±14mV.
1-7. Adjustment of output gain of
Y/C (S terminal) signals
BOARD
MAIN BOARD
TP
VIDEO OUT, YC1 or YC2
ADJ.
VR1561 (YCT), VR1523 (YCC)
INPUT
MODE
Cross point: A bus, B bus = INT
LCD menu: Int Video = color bar
M.EQ
Oscilloscope
SPEC.
Y level: within 700 ±14 mV
C level: within 300 ± 6 mV
1.
Adjust VR1561 (YCT) so the Y level of YC1 or
YC2 of VIDEO OUT becomes 700 ±14 mV.
2.
2. Adjust VR1523 (YCC) so the C level of
YC1 or YC2 of VIDEO OUT becomes 300 ± 6
mV.
1-8. Adjustment of output gain of
ADV-REF signals
BOARD
MAIN BOARD
TP
ADV-REF
ADJ.
VR1560 (REF)
INPUT
MODE
M.EQ
Oscilloscope
SPEC.
SYNC level: within 300 ±6 mV
Y LEVEL
C LEVEL
A
A
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