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13.4. SOUND BLOCK
External Microphone Jack (CN603)
Used with the external microphone.
Speaker Jack (CN604)
Used when connecting a speaker with a built-in amplifier, when the sound is output from a camera.
Microphone Detection (Q603)
When the external microphone plug is not inserted, pins 3 and 2 of the Microphone Jack (CN603) are
short-circuited and a base current is supplied to Q603 through R603, R632 and R629 so that the Q603
goes ON and a collector (MIC_S signal) goes LOW. Alternatively, when the microphone plug is inserted,
pins 3 and 2 of the CN603 become open so that the Q603 goes OFF and the MIC_S signal goes HIGH.
From this signal, the CPU detects the microphone status.
The CPU turns the microphone SW on and off in the PCM Codec (IC601) for the external or the built-in
microphone, as appropriate.
ALC Amplifier (IC602: For the built-in microphone, IC603: For the external microphone)
Power Supply: 3.3V
Amplifier for Auto Level Control
PCM Codec (IC601)
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Содержание BB-HCM371A - Outdoor Wireless Network Camera
Страница 3: ...1 2 HOW TO RECOGNIZE THAT Pb FREE SOLDER IS USED MAIN BOARD I O BOARD 3 ...
Страница 4: ...CAMERA BOARD 4 ...
Страница 5: ...SENSOR BOARD 5 ...
Страница 6: ...RF BOARD 6 ...
Страница 16: ...6 3 BOTTOM VIEW 6 4 REAR VIEW 16 ...
Страница 29: ...6 Remove Main Board and I O Board from Cabinet Body 7 Remove Connector A Connector B and Connector C 29 ...
Страница 36: ...36 ...
Страница 37: ...37 ...
Страница 39: ...39 ...
Страница 40: ...9 5 CAUTIONS FOR CAMERA BOARD ATTACHMENT 40 ...
Страница 41: ...9 6 CAUTIONS FOR TILT MOTOR ATTACHMENT Attach the Tilt Motor and fix it with the Screws D 41 ...
Страница 44: ...44 ...
Страница 45: ...45 ...
Страница 47: ...10 TROUBLE SHOUTING 10 1 BASIC OPERATION 47 ...
Страница 48: ...10 2 CHECK FOR OTHER FUNCTION 48 ...
Страница 49: ...10 3 CHECK FOR SCREEN BLOCK 49 ...
Страница 50: ...50 ...
Страница 51: ...10 4 CHECK FOR SOUND BLOCK 51 ...
Страница 52: ...10 4 1 Built in Microphone 52 ...
Страница 53: ...10 4 2 External Microphone 10 4 3 Speaker Output 53 ...
Страница 54: ...10 4 4 Common Flow Of Built in Microphone External Microphone And Speaker Output 10 4 5 Check For LAN Block 54 ...
Страница 55: ...10 5 CHECK FOR MOTOR DRIVING BLOCK 10 5 1 Check For The Action Of Pan 55 ...
Страница 56: ...10 5 2 Check For The Action Of Tilt 56 ...
Страница 57: ...10 6 CHECK FOR SD CARD 57 ...
Страница 58: ...58 ...
Страница 59: ...10 7 CHECK FOR POWER SUPPLY BLOCK 59 ...
Страница 60: ...60 ...
Страница 61: ...10 8 CHECK FOR RTC CIRCUIT 10 9 CHECK FOR I O TERMINAL 61 ...
Страница 62: ...10 10 CHECK FOR LED CIRCUIT 62 ...
Страница 63: ...10 11 RF BLOCK 63 ...
Страница 64: ...10 12 CHECK FOR INITIALIZATION 64 ...
Страница 65: ...65 ...
Страница 90: ...C141 ECUV1E103KBV 0 01 90 ...
Страница 92: ...C330 ECUV1H150JCV 15P S 92 ...
Страница 94: ...L404 G1C100M00027 COIL 94 ...
Страница 96: ...R217 ERJ3EKF51R1 51 1 96 ...
Страница 98: ...R420 ERJ3EKF3302 33K 98 ...
Страница 109: ...L71 L72 L73 L74 Q71 CN71 1 8 BB HCM371A SENSOR BOARD ...
Страница 110: ...C72 R71 R72 C71 R73 IC71 CN72 PSUP1466Z PbF C BB HCM371A SENSOR BOARD ...
Страница 115: ...A1 A2 C1 C2 C3 F1 D1 D2 D3 D4 F2 B E G H1 ...
Страница 116: ...H2 I J O K L N M ...
Страница 117: ...Q P R1 R3 S1 S3 R2 S2 ...
Страница 119: ...X X Z2 Z3 Z4 Z5 ...