If-1277 Board - Sony PMW-PZ1 Service Manual

2. FPGA Config block
The CPLD1 (IC3001) configures data in FPGAs (IC4001/HPR-56 board and IC401/DY-27 board) in the power-
on process. Data to be configured is stored in the flash memory (IC3202) connected to the CPLD1.
3. Video/audio signal processing block
The FPGA1 (IC4001) on the HPR-56 board mainly processes video and audio signals.
Files stored in the SxS memory card are transferred from the SxS memory card through the COMe module to the
XAVC decoder IC (IC1001/HPR-56 board). The TTL signal that is output from IC1001 is processed by the FPGA1
(IC4001) to signals for SDI output, HDMI output, and LCD output.
Furthermore, the eDP (Embedded Display Port) signal that is output from the COMe module is transferred to the
eDP and is then converted to LVDS in the eDP to LVDS conversion IC (IC4003/HPR-56 board). The format of
the converted signal is converted in the FPGA1 (IC4001) and the signal is used to display the menu.
4. System control block
The FPGA1 (IC4001) has the PCI Express (Gen1) interface for system control from the COMe module.
Switching between video/audio is made by controlling the register provided in the FPGA1 (IC4001) by the COMe
module.
The FPGA1 (IC4001), CPLD1 (IC3001), and FPGA2 (IC401/DY-27 board) are connected to the dedicated control
bus, allowing control from the COMe module through the FPGA1 (IC4001).
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IF-1277 Board

The IF-1277 board contains the CPLD (IC001). Processing of this board is performed in the following blocks.
• Power input control block
• Power generation block
• SxS card interface block
• CPLD2 control block
• Audio line output block
• USB 3.0 HUB block
1. Power input control block
A reference voltage of 19.5 V is input from the AC adapter. IC103 generates a standby power of +3.3 V_EVER
from the input power voltage, which is used as the power of the power LED. The PMW-PZ1 specifies the hardware
operating voltage range from 10.0 to 23.5 V. When the comparator (IC107) detects a voltage lower or higher than
this voltage range, it shuts down the source power. Furthermore, IC104 generates a signal for red blinking that is
output when a voltage out of the range is detected. The power on/off controller IC109 switches the source input
power and shuts it down upon receiving an instruction of the CPU. IC112 is a voltage/current monitoring IC, and
the CPU monitors voltage and current.
2. Power generation block
The 19.5 V power voltage transferred through the input control block is regenerated to a voltage of +9 V in IC101.
This +9 V voltage is the source voltage of voltages to be distributed to all blocks of the PMW-PZ1, and is lowered
to voltages necessary for each block. This +9 V voltage is distributed to the HPR-56 board. DC-DC converters
IC202 to IC204, IC207, and IC208 generate voltages (+1.5 V, +2.5 V, +3.3 V, +5 V, etc.) necessary in the IF-1277
board. Voltages around 1.1 V for internal cores (such as ASIC) are generated near such ICs.
3. SxS card interface block
The SxS card (ExpressCard) is accessed by the PCI Express (Gen2). The SxS card is accessed in two methods.
One is direct access to the PCI Express from the HPR-56 (COMe board), and the other is USB 3.0 conversion
access. These two channels are switched by the bus switch (IC504, IC506, and IC507). The USB conversion access
is currently used. IC308 performs conversion between PCI Express and USB, and then IC305 performs conversion
between USB and PCI Express. This is necessary to handle the SxS card as a removable medium to prevent the
PMW-PZ1
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