Enhanced/Dual Powered
Willem EPROM Programmer
User Guide Â
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Main Board / Cables
Main Board PCB3.5

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Main Board PCB4E

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Main Board PCB5.0

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Main Board PCB5.5C

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Parallel Data Cable (Printer extension cable, with male-female 25 pin connector, and pin to pin through) |
A-A type USB cable(for power) |
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Optional Items:
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ATMELÂ 89 Adapter |
ATMEL PLCC 44 Adapter |
TSOP 48 Adapter |
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FWH/HUB PLCC32Adapter |
PLCC32 Adapter |
SOIC Adapter(Simplified) |
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On-Board |
On-Board |
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AC or DC Power Adapter (9V or 12V, 200mA) |
SOIC Adapter(Professional) |
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To ensure system safety and software integrity, the following procedures are recommended for acquiring the DMG: Adobe acrobat pro dc 21.007.20091 | Community
: Some users found that the application appeared to run in the background but failed to open documents on-screen. Download Adobe Acrobat v21 007 20091 dmg
Technical Brief: Adobe Acrobat v21.007.20091 (macOS) Adobe Acrobat version , released on September 14, 2021, was a major planned update designed to enhance performance and security for the Continuous Track of Acrobat and Reader DC. 1. Key Features and Improvements To ensure system safety and software integrity, the
: Addressed issues in Fill and Sign (signature usage in small windows), forms (Reader crashes with dynamic rich-text forms), and performance delays when opening large 1,000+ page PDFs multiple times. 2. Known Installation and Operational Issues Key Features and Improvements : Addressed issues in
: Adobe later released an optional patch ( 21.007.2009x ) to resolve these specific installation and performance regressions. 3. Secure Download and Installation Guidelines
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Hardware Installation & Configuration
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Installation Steps
         (Note: the LPT port of PC MUST set to ECP or ECP+EPP during BIOS setup. To enter the BIOS setting mode, you need press "Del" key or "F1" key during the computer selftest, which is the moment of computer just power up.)  Software Version To Use | |||
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         The software interface:  | |||
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 Hardware
Check  | |||
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 PCB3.5/PCB4E
 PCB5.0
 PCB5.5C Â
Note: the Vcc setting jumper only has effect when you are using AC adaptor as power source. For the USB power only 5V Vcc is available. For the PCB5.5C, set DIP steps: 1. press DIP Set button twice to check current DIP bit position. Then set it again for ON or OFF. 2. press DIP Bit shift button to shift the DIP bit position to where need to set. And then press DIP Set button twice to check current DIP bit position. Then set it again for ON or OFF. 3. Repeat those steps till all DIP bit ae set same as software indicated. For PCB5.5C voltage and Special chip selection: 1. Put back the safety jumper. 2. Press the voltage button and hold for 1 second, the voltage LED should move to next. Repeat till desired voltage LED light up. 3. Press the chip selection button and hold for 1 second, the chip LED should move to next. Repeat till desired LED light up. 4. Remove the safety jumper to lock the selected voltage and chip selection  DIP Switch (PCB3.5, PCB5.0)
When programming one chip, follow the program prompt to set DIP switch .  |
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To ensure system safety and software integrity, the following procedures are recommended for acquiring the DMG: Adobe acrobat pro dc 21.007.20091 | Community
: Some users found that the application appeared to run in the background but failed to open documents on-screen.
Technical Brief: Adobe Acrobat v21.007.20091 (macOS) Adobe Acrobat version , released on September 14, 2021, was a major planned update designed to enhance performance and security for the Continuous Track of Acrobat and Reader DC. 1. Key Features and Improvements
: Addressed issues in Fill and Sign (signature usage in small windows), forms (Reader crashes with dynamic rich-text forms), and performance delays when opening large 1,000+ page PDFs multiple times. 2. Known Installation and Operational Issues
: Adobe later released an optional patch ( 21.007.2009x ) to resolve these specific installation and performance regressions. 3. Secure Download and Installation Guidelines