Panasonic RL H1400 handheld computer
dbetz at xlisper.com
Mon Feb 27 09:06:12 CST 2006
I have a module that plugs into the side of the HHC and contains four
ROMs containing the SNAP (Forth-like) programming language for the
HHC. I sent Roger Merchberger a copy of the ROM images and he has
been trying to get this to work on internal ROMs but I don't think
he's been successful yet. Unfortunately, the pins were brittle on one
of the ROMs that I pulled from my module and several have broken off.
Until I find a machined pin socket to repair the broken ROM, I no
longer have a working module. The ROM image files are okay though.
The checksums on the image files match the checksums on the labels on
On Feb 26, 2006, at 6:14 PM, Computer Collector Newsletter wrote:
> Don't worry Jack, you're not alone, a bunch of us have RLH models.
> was also a 1200 and a 1600 I think -- I might have those numbers
> wrong --
> the differences were in the amount of memory in the computer.)
> The computer (generally called a "pocket computer" when you search
> on the
> web) was designed by Friends Amis. Shortly before they finished it
> company (or maybe just the product line?) was acquired by
> Matsushita which
> sells as Panasonic / Quasar.
> There's a very handy description at
> http://old-computers.com/museum/computer.asp?st=1&c=644 -- make
> sure you
> also click on the icons on the right side of the page for more
> The computers were mostly bought by insurance companies.
> Roger M. last year was making copies of the BASIC module, maybe he
> still is.
> By coincidence, last week I spoke with guy who was software manager at
> Friends Amis. He was moderately helpful; the best information he
> gave me
> was names of other Friends Amis people who were higher up and / or
> the company earlier than he did. So now I'm trying to contact
> those people
> and, of course, I will post updates here if / when I reach them.
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org [mailto:cctalk-
> bounces at classiccmp.org]
> On Behalf Of Tony Duell
> Sent: Sunday, February 26, 2006 3:42 PM
> To: cctalk at classiccmp.org
> Subject: Panasonic RL H1400 handheld computer
> Can anyone tell me useful stuff about the Panasonic RL H1400
> computer? I
> believe it was also sold under the Quasar brand name.
> I've just bought one. As well as the machine (which I've not tested
> yet), I
> got a little thermal printer/cassette interface, the AC adapter
> (for 110V
> mains), and 13 EPROMs in carriers. These seem to be insurance
> programs (what
> a suprise -- NOT), but are at least UV-erasable EPROMs.
> A few things :
> I have of course taken it apart, it is painful to dismantle with wires
> soldered between everything. The contemporary HP machines are a lot
> nicer to
> work on.
> With the bottom cover removed, you see the component side of the
> CPU board.
> I recognise the 6502 processor, some TTL and 4000-series CMOS
> chips, 2 8K
> ROMS soldered in, and 2 6116 (2K each) SRAMs. There's also a square
> chip, looks to be custom (I/O???). Alongside that board is a 6V
> NiCd pack
> with a fuse in series.
> A bit more desoldering and unscrewing let me flip that board out of
> the way.
> On the underside is another TTL chip and a lot of SMD passives, etc.
> The other PCB carries the keyboard contacts, the display, half-a-
> dozen Epson
> PQFP chips (display drivers?) and a couple of 4071s, which IIRC are OR
> There's an expansion connector on the end of the CPU board. 44
> Looks to be the 6502 bus + power some others.
> The printer also comes apart from the bottom. Its PCB contains a 4K
> ROM, an
> 80 pin PQFP ASIC, a driver chip, and a few small logic chips.
> Getting ito
> the rest of the machine is a bit more tricky, all it contains is
> the printer
> mechanism and 4.8V-worth of NiCds.
> I also cracked open the mains adapter.More complicated than I thought,
> there's a regulator chip in there. And a fuse mounted in clips
> (what is the
> point of a clipped in fuse inside a glued case??).
> Anyway, I've done a web search. Nothing very useful turned up. I
> did read a
> user manual on one site, which told me little that wasn't obvious.
> Anyone got any technical information on it? Any useful software?
More information about the cctalk