Sony WLL-CA55, Руководство по обслуживанию

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2-1 (E)
WLL-CA55
TP1
TP2
TP3
TP4 TP5
TP6
1 2 3
A
B
CD
2-1. Preparation
2-1-1. Equipment Required
Fixture
Extension board EX-819
(Sony Part No. : A-8327-481-A)
Measuring Equipment
.
Digital multi meter: Advantest R6441B or
equivalent
. SDI waveform monitor: Tektronix WFM-601E or
equivalent
.
Frequency counter: Advantest R5362B or
equivalent
. Oscilloscope: Tektronix TDS3054B or
equivalent
Peripheral Equipment
. Wireless camera receiver: WLL-RX55
.
Color video camera: BVP-550/570/(950)
.
AC adaptor: AC-550/550CE or AC-
DN2B, or
Battery pack: BP-L60A/L40A/M50/M100/
IL75
2-1-2. Notes on Adjustments
.
All measuring equipment shall be calibrated.
. When extending the boards, be sure to set the DC LINE
switch of WLL-CA55 to OFF.
Section 2
Electrical Alignment
APR-69 BOARD (A SIDE)
2-2. Power Voltage Check
2-2-1. APR-69 Board
Tools
. Digital multi meter: Advantest R6441B or equivalent
. Extension board: EX-819
(Sony Part No.: A-8327-481-A)
Preparations
1. Set the DC LINE switch of the unit to OFF, and extend
the APR-69 board using the EX-819 board.
(Refer to steps 1 to 3 in Section 1-14.)
n
If the camera is connected to the unit, set the power
switch of the camera to OFF, too.
2. Set only the DC LINE switch of the unit to ON, and
warm up the unit for about ten minutes.
Checking Procedure
Check the output voltage of each power supply line.
Output voltage Specification Test point (GND)
+ 7.5 V + 7.5
±
0.2 V dc TP1/APR-69
(TP5/APR-69)
+ 12 V + 12
±
1 V dc TP4/APR-69
(TP5/APR-69)
+ 48 V + 48
±
2 V dc TP3/APR-69
(TP5/APR-69)
_ 7.5 V _ 7.5
±
0.2 V dc TP2/APR-69
(TP5/APR-69)
Setting after Checking
Restore the APR-69 board to the original position.