9.2.3.3
Defect of the Main board unit
Detect of the Main unit power supply
Replace the
fault parts.
Replace the
fault parts.
Is the voltage of
C903 about 22V?
Check around Q31,
D31,R32,R31 and
C34 of Main Board.
Is the voltage of C904
(Main Board) about
12V?
Replace fuse(F900) on Main Board of
the Main Monitor Station.
Is the voltage of C906
(Main Board) about
12V?
Replace Resistor(R902) on Main Board
of the Main Monitor Station.
Is the voltage
of CL910(Main Board) about
5V? (12V→5V)
Check around IC910,
L910,R912,R913,
C910,C912,C913,C914,
C915 and C917 of
Main Board.
YES
YES
YES
YES
(To next page)
NO
NO
NO
NO
Is the unit powered
ON ?
NO
YES
END
Is the unit powered
ON ?
NO
YES
END
Is the unit powered
ON ?
NO
YES
END
Is the unit powered
ON ?
NO
YES
END
- 30 -
Содержание VL-SV75 Series
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Страница 50: ...10 2 4 1 Note for Microphone Assembly for anti feedback 50 ...
Страница 52: ...10 3 Power Supply Unit 1 Remove 4 screws a 2 Remove the Power Board by unhooking 2 tabs 52 ...
Страница 73: ...13 2 2 MIC Board MIC MIC C700 1000pF L700 L701 MIC1 1 2 VL V524 Mic Board 73 ...
Страница 80: ...14 2 2 MIC Board L 7 0 0 L 7 0 1 C700 MIC1 PNLB2805 YY b VL V524 Mic Board Component View Bottom View 80 ...
Страница 85: ...15 1 3 Power Supply Unit Q PCB401 P Q Q Q 407 403 404 406 405 402 401 85 ...
Страница 87: ...15 1 4 2 VL MV75AZ P201 P204 P202 P203 P205 A203 A204 A205 A206 A207 P206 P207 P208 A201 A202 87 ...
Страница 102: ...SA ...