Dy-27 Board - Sony PMW-PZ1 Service Manual

OS from hanging up. The firmware of IC305 is stored in IC309 and is loaded in the startup process. IC505 controls
the SxS card power.
4. CPLD2 control block
The CPLD (IC001) controls the IF-1277 board and monitors its operation. An operating mode can be selected with
the DIP switch (S401). S401 is set to all OFF by factory default. The EPR connector (CN401) is used to rewrite
the internal structure.
5. Audio line output block
IC503 is a D/A converter for audio signals. Digital audio signals from the HPR-56 board are input to this block
through the level converter (IC501). Audio signals are transferred to the line filter and are then output to the RCA
connector.
6. USB 3.0 HUB block
The USB 3.0 HUB IC (IC603) branches USB 3.0 from the HPR-56 board into two ports. USB connectors are
provided on the front side and the rear side of the unit. The rear USB connector is a spare connector that is covered
with a panel.
7. Connectors
Connectors on the IF-1277 board are assigned as follows and are connected between this board and peripheral
circuits. (Unmounted connectors are not shown below.)
• J101: AC adapter input
• CN101 (8P): Connection to the DY-27 board. +9 V voltage, standby +3.3 V voltage, and transmission of
power key information
• CN201 (140P): Connection to the HPR-56 board. Power voltages and transmission of signals
• CN401 (10P): CPLD reprogramming EPR2 connector
• CN502 (26P): SxS card connector
• J501: Audio out connector
• CN601 (9P): Front USB 3.0 connector
• CN602 (9P): Rear USB 3.0 connector
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DY-27 Board

Provided with the FPGA2 (IC401), the DY-27 board performs the following processing.
• LCD display system (processing to return the serial LVDS signal from the HPR-56 board to parallel signals for
the LCD)
• LCD backlight brightness control
• User interface (including key operation)
• HUB IC for connection to USB 2.0 mouse
• Processing for power key information and interrupts to the CPU
• D/A conversion of audio signals and headphone amplifier signal output
The X301 generates 25 MHz clock necessary for operation of the FPGA (IC401).
Connectors on the DY-27 board are assigned as follows and are connected between this board and peripheral circuits.
• CN101 (8P) : Connection to the IF-1277 board. +9 V voltage, standby +3.3 V voltage, and transmission of power
key information
• CN102 (40P): Connection to the HPR-56 board. FPGA Config control, USB 2.0, and LVDS for the LCD
• CN103 (30P): Connection to the HPR-56 board. Digital audio signals and CPU access signals
• CN104 (40P): Connection to the KY-740 board. +2.5 V and +3.3 V voltages, key signals, and LED control signals
• CN201 (9P): USB 2.0 connector
• J201 (stereo mini jack): Headphone
• CN300 (61P): Connection to the LCD. Voltage sources, video signals, and backlight signals
• CN401 (10P): For debugging at the factory
PMW-PZ1
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