Sony IPELA SNC-RZ30N, Руководство по обслуживанию

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4-4
SNC-RZ30N (E)
4-1-17. MDR-19 Board Interface Connector
The interface connector between CN403 (pin 12) and MDR-19 board is used to connect the Visca
communication signal between HD6417615 and an H8 microcomputer (IC1005), the Visca
communication signal between a camera module and H8 microcomputer (IC1005) via CN404, the control
signal of LEDs (D1004 and D1005), or the power of a secondary battery.
4-1-18. Camera Module Interface Connector
CN402 (pin 22) is used to connect the digital image data and control signal from a camera module.
CN404 (pin 21) is used to connect the power supply (12 VDC) to a camera module, the Visca
communication signal between a camera module and H8 microcomputer (IC1005), or the analog video
signal from a camera module.
4-2. MDR-19 Board
4-2-1. Power Block
The power block supplies a power of 12 VDC from the SY-303 board through CN1001 (pin 8) and inputs
it to three switching regulators (IC1001 to IC1003). The voltage output from IC1001 is 5 VDC. The
output voltage is used for an MR amplification-related block and backup power switch. It is also sent
through CN1008 (pin 12) to the SY-303 board. The voltage output from IC1002 is 3.3 VDC. The output
voltage is used for the peripheral block of a microcomputer. It is also sent through CN1008 (pin 12) to
the SY-303 board. The voltage output from IC1003 is 5.5 VDC. The output voltage is used for a motor
driving system.
4-2-2. Outline of Microcomputer Operation
A 16-bit microcomputer (H8, IC1005) performs the pan/tilt motor control, the Visca communication with
a camera module, the Visca communication with HD6417615 (IC007), and the data read and write of
EEPROM (IC1006). A pan motor inputs a hole element signal (PAN_HOLE_H[3:1]) for mutual
switching and inputs an MR element signal (PAN_MRFG[2:1]) for position detection. The pan motor
also outputs a PWM signal (PAN_PWM), polarity switching signals (PAN_POL_U, V, and W), and
phase selection signals (PAN_PHASE_U, V, and W) to control a motor. Like the pan motor, a tilt motor
also inputs a hole element signal (TILT_HOLE_H[3:1]) for phase switching and inputs an MR element
signal (TILT_MRFG[2:1]) for position detection. The tilt motor outputs a PWM signal (TILT_PWM),
polarity switching signals (TILT_POL_U, V, and W), and phase selection signals (TILT_PHASE_U, V,
and W) to control a motor. For the data of EEPROM (IC1006), the position information of each motor is
mainly stored in parallel.