9.2.7
Defect of the Key board unit
Is the voltage of
CL1001 about 5V?
Replace the
fault parts.
Replace the
fault parts.
Is the voltage of
CL1006 about 3.3V?
Does the screen change in
response to key touch?
Does the screen change in
response to key touch?
Is the cable connected to
CN 701 and CN 1001?
Check around IC1001,
C1003,C1004 and C1009.
Check around IC1002,R1001,
R1002,R1010
〜
R1013,
C1008
〜
C1011 and L1001.
Confirm that the CL 910 of the
main board becomes 5 V.
Replace the Key board. (*1)
NO
NO
NO
NO
NO
YES
YES
Connect the cables correctly.
NO
YES
YES
YES
END
START
Reference:
• (*1)
[10.1.3 How to Remove the Main Board, Speaker and LCD [No.3]]
.
- 36 -
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 ...