Connecting a SHARP PC-1401/EL-5500 with a PC-1211 printer interface

[Ral-Clan]

Hi,

I have a SHARP PC-1421 pocket computer, which is essentially a variant of the Sharp PC-1401/PC-1403 line (in the US called the EL-5500).

The SHARP-1401 line was made to dock with a printer/cassette interface (the CE-126) using an 11-pin interface. These are very hard to obtain today.

However, I was able to pick up a CE-122 cassette/printer interface, mean to be used with the older SHARP PC-1211 pocket computer. It uses a 9-pin interface to connect.

Although they are not physically compatible, I'm wondering if there's any likelihood that some of the pins are electrically compatible, and the CE-122 could be made to work with the newer PC-1401 line.

Best info I am able to find are the following pinouts:

PC-1211 (source: https://lastin.dti.supsi.ch/VET/sys/SHARP/PC-1211/pc1211_service_manual.pdf)
------------
1. CMT
2. Recording signal
3. CMT
4. LOADING signal
5. Options
6. CONTROL
7. DATA
8. CMT
9. REMOTE CONTROL

PC-1401
(source 1: https://lastin.dti.supsi.ch/VET/sys/SHARP/PC-1211/pc1211_service_manual.pdf)
(source 2: http://pocket.free.fr/images/soft/circuit-big.gif)
------------
1. MTOut
2. OUT / 6V
3. Vgg / GND
4. F01
5. F02
6. XIN
7. XOUT
8. IB8
9. IB7
10. NC / IB6
11. NC / IB5