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BOOK II

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BOOK II

BOOK 2 USER Manual<br>BOOK 2 USER Manual0.1.pdf<br>BOOK II Technical Reference & Maintenance Manual<br>(The document is pending upload)<br>Schematic diagram<br>(The document is pending upload)<br>BOOK II MotherBoard Rev0.3.pdf

BOOK II Upper motherboard Rev. 0.3.pdf

Size demonstration of floppy drive simulator

10.5X7.48x1.2mm.rar

The BOOK II contains approximately 120 DIP chips, making the soldering and assembly process excessively time-consuming. As a result, it is only produced in very limited quantities.<br>Overview

The BOOK II is a portable Apple II (Plus) compatible computer, redesigned using standard TTL chips and equipped with ROMs from early Apple II compatibles or clones. Beyond its core Apple II functionality, it integrates several built-in enhancements: an 80-column video card, a 16KB Language Card, a Z80 Softcard, a printer controller, and a Disk II compatible controller.<br>As a portable computer, the BOOK II features a built-in lithium battery, an RGB LCD, and a low-profile mechanical keyboard. It supports original Apple Disk II floppy drives as well as floppy drive emulators.<br>Features<br>CPU: 6502

SRAM: 48KB (+16KB)

Z80 Softcard

80 Column Video Card

16KB Language Card RAM

Disk II controller

Printer Interface

RGB Display

Mechanical keyboard/

Lithium battery (4x18650)

Expansion Bus Support (Slot 5)

Low-profile mechanical keyboard with blue backlighting

The BOOK II’s keyboard features more keys than the Apple II, and its layout more closely resembles that of the Apple IIe.

External interfaces:

[1] 20Pin External DISK2 drive interface<br>[2] Printer Interface<br>[3] 50 pin system bus slot (Slot 5)<br>[4] Internal 80 column video card enable switch<br>[5] Text color selection switch<br>[6] RGB LCD control switch<br>[7] DB9 game control stick interface<br>[8] Cassette data in<br>[9] Cassette data out<br>[10] 80 column card video output<br>[11] Motherboard video output<br>[12] Speaker<br>[13] Cooling fan<br>[14] Power switch<br>[15] Game joystick interface<br>[16] Power adapter input (12V 3A)

[1] 20Pin External DISK2 drive interface<br>BOOK II supports the Apple Disk II floppy drive or compatible disk drive emulators.<br>Reserved internal location for floppy drive emulator<br>An additional connector is reserved inside the unit. Users with the technical capability to design a disk drive emulator can construct one according to the reference dimensions and mount it using the pre-installed screws.<br>[2] Printer Interface<br>It can be connected to a printer via a 20‑pin ribbon cable with a CN36 header. (BOOK II has only been tested with the OKI 5200F printer)

[3] 50 pin system bus slot (Slot 5)<br>The Apple II motherboard includes eight bus expansion slots for adding additional functionality. BOOK II directly integrates these common expansion cards. The corresponding slot numbers for the integrated cards are listed below:<br>SLOT0: 16KB language card memory<br>SLOT1: Printer Interface<br>SLOT2: (Not used)<br>SLOT3: 80Column Video card<br>SLOT4: Z80 Softcard<br>SLOT5: Used for external expansion cards<br>SLOT6: Disk II Controller<br>SLOT7: (Not used)

[4] Internal 80 column video card enable switch<br>The 80-column card enable switch is used to activate or deactivate the 80-column video card. This switch must be adjusted only when the unit is powered off.

When the switch is set to OFF, the select signal for the 80-column card is disconnected from the SLOT3 connector, making the system behave as if the card is not present.

With the 80-column video card activated, you can enter 80-column video mode from the BASIC environment by typing PR#3. The LCD controller switch must also be set to position "1" (labeled 80 Column). If using an external video monitor, ensure it is connected to the 80-Column video port. Some software automatically detects the presence of the 80-column card on startup and switches to 80-column mode; in this case, you must also confirm the LCD controller switch is in position "1". To prevent software from automatically entering 80-column mode, set the 80-column card enable switch to OFF before powering on.

[5] Text color selection switch<br>This switch is used to select the color of on ‑ screen text. Except for graphic ‑ based characters, text in all display modes will be rendered in the selected color. The text color is modified within the RGB controller circuit, so this function does not affect an external video monitor. The BOOK II motherboard itself is not controlled by this switch.

The following table lists the text colors corresponding to each switch position:<br>A-White B-Grey C-Green D- Orange E- Yellow

[6] RGB LCD control switch

This switch selects whether the LCD receives video signal from the motherboard or from the 80‑column video card. When set to position "1", the LCD receives signal from the 80‑column video card. If no software is utilizing the...