DOWNLOAD Panasonic BL-C140CE / BL-C140E / BL-C160CE / BL-C160E Service Manual ↓ Size: 2.36 MB | Pages: 68 in PDF or view online for FREE

Model
BL-C140CE BL-C140E BL-C160CE BL-C160E
Pages
68
Size
2.36 MB
Type
PDF
Document
Service Manual
Brand
Device
Video Monitoring / NETWORK CAMERA
File
bl-c140ce-bl-c140e-bl-c160ce-bl-c160e.pdf
Date

Panasonic BL-C140CE / BL-C140E / BL-C160CE / BL-C160E Service Manual ▷ View online

13
BL-C140CE/BL-C140E/BL-C160CE/BL-C160E
4.1.7.
LED Light Block(BL-C160 only)
DC-DC Converter IC (IC351/IC353)
Package: 8 pin SOP
DC-DC converter IC for low voltage drive for lighting the LED light
Built-in FET
IC351 (on your right when facing front of camera) / IC353 (on your left when facing front of camera)
2 Circuits Built-in Operational Amplifier (IC352)
Package: 8 pin SOP
Operating Power Supply: +3.3V (+A3.3VS)
Resistance voltage for current detection is amplified and input to DC-DC converter.
White LED (LED902/LED904):Mounted on LED board
Forward voltage:Max4.4V
The DC-DC converter IC (IC351 / IC353) outputs voltage so that about 300 mA of current flows to the white LED.
The voltage of resistors R362 and R363 for current detection is amplified by the operational amp (IC352) and input to the DC-DC
converter for low voltage drive. light is turned off/on by CPU (IC101) via transistor (Q351). 
*light is not lit in the case of low input voltage to the sensor camera.
4.1.8.
 Lighting Intensity Sensor Block(BL-C160 only)
 lighting intensity sensor(IC204)
Operating Power Supply: +3.3V (+A3.3VS)
Output voltage varies according to brightness. (0 ~ 2.6 V)
 2-circuit comparator(IC205)
Package: 8 pin SOP
Operating Power Supply: +3.3V (+A3.3VS)
Output voltage of the lighting intensity sensor alters the signal if signal amplitude exceeds the stipulated voltage range. 
If lighting of the sensor camera is set automatically, the brightness is detected by the lighting intensity sensor and the LED light is lit
automatically if it is dark.
14
BL-C140CE/BL-C140E/BL-C160CE/BL-C160E
4.1.9.
Power Supply Block
Power Supply Block provides power that each block consumes.
Power is input to the sensor camera by 9VDC/750mA AC adapter via power unit 
→ clearance LAN cable → stand. Sensor cam-
era input voltage is reduced by cable loss. 
CPU board internal circuit diagram and output voltage are as follows.
15
BL-C140CE/BL-C140E/BL-C160CE/BL-C160E
4.2.
Power Transfer Unit
Power is supplied to the camera side terminal (CN903) by inputting DC output (+9V) of the AC adapter to the DC jack (CN901).
Ethernet signals are sent from the LAN terminal (CN902) and power is mixed and sent to the camera side connector (CN903).
16
BL-C140CE/BL-C140E/BL-C160CE/BL-C160E
5 Location of Controls and Components
Page of 68
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