5× expanded, 100% socketed PAL Commodore 128D. International shipping.
100% socketed, tested Commodore 128D mainboard + internal serial cable + steel cases + Schaffer PSU + KeyDOS utilities 5,25 DD disk. ARTWORK NO. 310381 REV. 7. German characterset 315079-01A
100% socketed, tested Commodore 1571D mainboard + steel cases + D502 mechanics. ARTWORK NO. 310396 REV. A. Tested in 1571, 1541, MFM (CP/M) mode. No keyboard.
All of the chips of both motherboards socketed.
The PSU faulty, 9V~ OK, but no 5V=, no 12V=. I tested the machine with an other PSU. Schematics.
The D502 mechanics reading OK, but no writing, no formatting. I tested the 1571 motherboard with faultless mechanics, writing, formatting OK.
C128 expansions:
The VDC RAM upgraded from 16 KB (2×4416) to 64 KB (2×4464). This is the maximum size.
The U32 original C64 ROM upgraded from 251913-01 to switchable ROM. ROM 1: 251913-01, ROM 2 JiffyDOS 6.01 (last version).
The U35 original C128 kernal upgraded from 315078-01 to switchable kernal. ROM 1: 315078-02 german (last version). ROM 2: JiffyDOS 6.01 (last version).
The U36 socket is empty originally. It's a 32 KB internal function ROM ($8000-$FFFF).
2 switchable systems were put into the socket. System 1: Servant 4.84. System 2: KeyDOS V2.
All 3 ST M27C512 EPROM chips and all 3 switches are new.
1571 expansion:The original DOS upgraded from 310654-03 to switchable DOS. DOS 1: 310654-05 (last version), DOS 2: JiffyDOS 6 (last version).
The ST M27C512 EPROM chip and the switch are new.
Testvideo
To the video: The Servant DiskTools Disk copier handled the 128 KB system RAM + 64 KB VDC RAM = 192 KB.
1 normal 1 side disk = 35 tracks = 683 blocks. 1 block = 256 bytes, 683 blocks = 174848 bytes = 170,75 KB.
It's possible to read a full disk side with 1 operation. The Servant program works in the ROM. The 1571 format disk 2 sides.
Altogether 61 chips in the C128 motherboard (+U36 empty socket).
12 chips in socket originally, and not 49 chips in socket originally.
Altogether 20 chips in the 1571 motherboard.
2 chips in socket originally, and not 18 chips in socket originally.
Hard work (25-30 hours) to put 67 chips into socket.
The motherboards is repairable easily, and may work until decades yet.
Original C128 motherboard chiplist, bold = socketed original:
U1 6526 CIA 40 pin, U2 4066 14, U3 74LS138 16, U4 6526 CIA 40, U5 6581R3 SID 28, U6 8502 CPU 40, U7 8722R2 MMU 48, U8 74LS08 14, U9 7432 14, U10 Z80 CPU 40, U11 8721R3 PLA 48, U12 74LS373 20, U13 74LS244 20, U14-15 74LS257 16, U16 74LS14 14, U17 74LS373 20, U18 315079-01 24, U19 M2128 2 KB color SRAM 24, U20 4066 14, U21 8566R3 VIC 48, U22 8563R9 VDC 48, U23 4416 VDC RAM 1 18, U24 74LS244 20, U25 4416 VDC RAM 2 18, U26 74LS257 16, U27 LM556 14, U28 8701 16, U29 7406 14, U30 7406 14, U31 74LS00 14, U32 251913-01 28, U33 318018-02 BASIC low 28, U34 318019-02 BASIC high 28, U35 C128 kernal 28, U36 empty socket 28, U37 7406 14, U38-53 16×4164 128 KB RAM 16, U54 74LS32 14, U55 74F245 20, U56 74LS74 14, U57 7407 14, U58 74LS03 14, U60 7407 14, U61 7408 14, U62 74LS244 20, U63 7406 14. The U59 = 7812 voltage regulator, this is not chip.
Original 1571 motherboard chiplist, bold = socketed original:
U1 6502 CPU 40 pin, U2 310654-03 DOS 28, U3 M2128 2 KB SRAM 24, U4 6522 VIA 40, U5 251829-01 gate array 20, U6 HD61J215P gate array 42, U8 7406 14, U9 6522 VIA 40, U10 74LS74 14, U11 WD1770 FDC 28, U12 7432 14, U13 74LS266 14, U14 7407 14, U15 74LS14 14, U16 7406 14, U17 74LS14 14, U18 74LS175 16, U19 74LS241 20, U20 6526A CIA 40, U22 74LS123 16. The U7 251853-01 not chip. The U21 = low volt detect transistor.
JiffyDOS is an enhanced Disk Operating System (DOS) for Commodore C-64, SX-64, and C-128 computers. Programmed onto ROMs that replace the Kernal ROM(s) in your computer and the DOS ROM in your disk drive, JiffyDOS provides the speed, commands and convenience missing on stock systems. Because it is ROM-based, JiffyDOS becomes an integral part of your system, and is able to provide performance without the compatibility
problems of Cartridges and other speed-enhancement systems.
Servant hardware requirements:
Minimum hardware:
Commodore 128 or 128D. Any Commodore compatible disk drive. 40 or 80 column (or both) monochrome or color monitor.
Hardware supported but not required:
Additional disk drive(s) (devices 4 through 30 supported except on main menu which supports devices 8-12). Full 1581 support.
Hard disks will work with some features.
Quick Brown Box - utilizing THE SERVANT's built-in file manager.
1700, 1764 and 1750 memory expansion units. Upgraded REU's of up to 8Mb are supported. RAMDOS is supported where appropriate.
64K VDC RAM is automatically detected and utilized.
KeyDOS ROM Specifications:
The KeyDOS ROM is a 32K ROM (Read Only Memory) chip that contains new function key definitions and utilities. Here is a partial list of major features:
* Compatible with most C128 hardware and software including JiffyDOS, The Quick Brown Box, CS-DOS, and even other function ROMs.
* RAMDOS support for Commodore RAM Expansion Units from 128K to 2M.
* Full support for the creation of 1581 disk drive partitions and subdirectories.
* 20 KeyDOS Function Keys simplify disk operations on multiple drive systems.
* Load C64 programs in C128 FAST mode with one key press.
* Type SEQuential files without disturbing RAM.
JiffyDOS manual.
Servant manual.
KeyDOS V2 manual.
Super 64 KB VDC programs:
VDC Mode Mania
VDC-FLI
VDC-IHFLI
Risen from Oblivion VDC V2
Video
The 64 KB VDC RAM test (side 3) Maverick 5.04
Payment deadline dec. 20. I send the packet until dec. 21.
Postage cost to Germany, Austria, Slovakia 45 USD (10 kg).
Postage cost to France, Great Britain, Italy 74 USD.
If you do not understand something, ask BEFORE shopping.
220 USD + postage cost.
100% socketed, tested Commodore 128D mainboard + internal serial cable + steel cases + Schaffer PSU + KeyDOS utilities 5,25 DD disk. ARTWORK NO. 310381 REV. 7. German characterset 315079-01A
100% socketed, tested Commodore 1571D mainboard + steel cases + D502 mechanics. ARTWORK NO. 310396 REV. A. Tested in 1571, 1541, MFM (CP/M) mode. No keyboard.
All of the chips of both motherboards socketed.
The PSU faulty, 9V~ OK, but no 5V=, no 12V=. I tested the machine with an other PSU. Schematics.
The D502 mechanics reading OK, but no writing, no formatting. I tested the 1571 motherboard with faultless mechanics, writing, formatting OK.
C128 expansions:
The VDC RAM upgraded from 16 KB (2×4416) to 64 KB (2×4464). This is the maximum size.
The U32 original C64 ROM upgraded from 251913-01 to switchable ROM. ROM 1: 251913-01, ROM 2 JiffyDOS 6.01 (last version).
The U35 original C128 kernal upgraded from 315078-01 to switchable kernal. ROM 1: 315078-02 german (last version). ROM 2: JiffyDOS 6.01 (last version).
The U36 socket is empty originally. It's a 32 KB internal function ROM ($8000-$FFFF).
2 switchable systems were put into the socket. System 1: Servant 4.84. System 2: KeyDOS V2.
All 3 ST M27C512 EPROM chips and all 3 switches are new.
1571 expansion:The original DOS upgraded from 310654-03 to switchable DOS. DOS 1: 310654-05 (last version), DOS 2: JiffyDOS 6 (last version).
The ST M27C512 EPROM chip and the switch are new.
Testvideo
To the video: The Servant DiskTools Disk copier handled the 128 KB system RAM + 64 KB VDC RAM = 192 KB.
1 normal 1 side disk = 35 tracks = 683 blocks. 1 block = 256 bytes, 683 blocks = 174848 bytes = 170,75 KB.
It's possible to read a full disk side with 1 operation. The Servant program works in the ROM. The 1571 format disk 2 sides.
Altogether 61 chips in the C128 motherboard (+U36 empty socket).
12 chips in socket originally, and not 49 chips in socket originally.
Altogether 20 chips in the 1571 motherboard.
2 chips in socket originally, and not 18 chips in socket originally.
Hard work (25-30 hours) to put 67 chips into socket.
The motherboards is repairable easily, and may work until decades yet.
Original C128 motherboard chiplist, bold = socketed original:
U1 6526 CIA 40 pin, U2 4066 14, U3 74LS138 16, U4 6526 CIA 40, U5 6581R3 SID 28, U6 8502 CPU 40, U7 8722R2 MMU 48, U8 74LS08 14, U9 7432 14, U10 Z80 CPU 40, U11 8721R3 PLA 48, U12 74LS373 20, U13 74LS244 20, U14-15 74LS257 16, U16 74LS14 14, U17 74LS373 20, U18 315079-01 24, U19 M2128 2 KB color SRAM 24, U20 4066 14, U21 8566R3 VIC 48, U22 8563R9 VDC 48, U23 4416 VDC RAM 1 18, U24 74LS244 20, U25 4416 VDC RAM 2 18, U26 74LS257 16, U27 LM556 14, U28 8701 16, U29 7406 14, U30 7406 14, U31 74LS00 14, U32 251913-01 28, U33 318018-02 BASIC low 28, U34 318019-02 BASIC high 28, U35 C128 kernal 28, U36 empty socket 28, U37 7406 14, U38-53 16×4164 128 KB RAM 16, U54 74LS32 14, U55 74F245 20, U56 74LS74 14, U57 7407 14, U58 74LS03 14, U60 7407 14, U61 7408 14, U62 74LS244 20, U63 7406 14. The U59 = 7812 voltage regulator, this is not chip.
Original 1571 motherboard chiplist, bold = socketed original:
U1 6502 CPU 40 pin, U2 310654-03 DOS 28, U3 M2128 2 KB SRAM 24, U4 6522 VIA 40, U5 251829-01 gate array 20, U6 HD61J215P gate array 42, U8 7406 14, U9 6522 VIA 40, U10 74LS74 14, U11 WD1770 FDC 28, U12 7432 14, U13 74LS266 14, U14 7407 14, U15 74LS14 14, U16 7406 14, U17 74LS14 14, U18 74LS175 16, U19 74LS241 20, U20 6526A CIA 40, U22 74LS123 16. The U7 251853-01 not chip. The U21 = low volt detect transistor.
JiffyDOS is an enhanced Disk Operating System (DOS) for Commodore C-64, SX-64, and C-128 computers. Programmed onto ROMs that replace the Kernal ROM(s) in your computer and the DOS ROM in your disk drive, JiffyDOS provides the speed, commands and convenience missing on stock systems. Because it is ROM-based, JiffyDOS becomes an integral part of your system, and is able to provide performance without the compatibility
problems of Cartridges and other speed-enhancement systems.
Servant hardware requirements:
Minimum hardware:
Commodore 128 or 128D. Any Commodore compatible disk drive. 40 or 80 column (or both) monochrome or color monitor.
Hardware supported but not required:
Additional disk drive(s) (devices 4 through 30 supported except on main menu which supports devices 8-12). Full 1581 support.
Hard disks will work with some features.
Quick Brown Box - utilizing THE SERVANT's built-in file manager.
1700, 1764 and 1750 memory expansion units. Upgraded REU's of up to 8Mb are supported. RAMDOS is supported where appropriate.
64K VDC RAM is automatically detected and utilized.
KeyDOS ROM Specifications:
The KeyDOS ROM is a 32K ROM (Read Only Memory) chip that contains new function key definitions and utilities. Here is a partial list of major features:
* Compatible with most C128 hardware and software including JiffyDOS, The Quick Brown Box, CS-DOS, and even other function ROMs.
* RAMDOS support for Commodore RAM Expansion Units from 128K to 2M.
* Full support for the creation of 1581 disk drive partitions and subdirectories.
* 20 KeyDOS Function Keys simplify disk operations on multiple drive systems.
* Load C64 programs in C128 FAST mode with one key press.
* Type SEQuential files without disturbing RAM.
JiffyDOS manual.
Servant manual.
KeyDOS V2 manual.
Super 64 KB VDC programs:
VDC Mode Mania
VDC-FLI
VDC-IHFLI
Risen from Oblivion VDC V2
Video
The 64 KB VDC RAM test (side 3) Maverick 5.04
Payment deadline dec. 20. I send the packet until dec. 21.
Postage cost to Germany, Austria, Slovakia 45 USD (10 kg).
Postage cost to France, Great Britain, Italy 74 USD.
If you do not understand something, ask BEFORE shopping.
220 USD + postage cost.
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