## DM41X Beta Programme

Discussion about the new DM41X calculator
EM41
Posts: 170
Joined: Mon Mar 30, 2020 12:10 am
Location: Overijssel Netherlands

### Re: DM41X Beta Programme

btw BEEP has a break in the first tone of the sequence of 4 on my machine.
I can hear it and a recording on audacity clearly shows it exact in the middle.
Can you or someone else check if this is common or just my machine.
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
PierreMengisen
Posts: 142
Joined: Wed Nov 29, 2017 1:38 pm
Location: Neuchâtel CH

### Re: DM41X Beta Programme

EM41 wrote:
Sat Apr 04, 2020 8:44 pm
Can you or someone else check ...
My BEEP is totaly OK. DM41X sn:00030
Pierre
[TI59 with PC100C; TI-84 Plus CE-T; HP41CV with HP IL loop & 2*82161A DCD & 82162 TP; HP15C; HP28S; DM41; DM41L; DM42; DM41X]
EM41
Posts: 170
Joined: Mon Mar 30, 2020 12:10 am
Location: Overijssel Netherlands

### Re: DM41X Beta Programme

Thanks for the info, I had to resolve it by removing the battery.
Did so many things till now don't know what caused it.
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
rprosperi
Posts: 1107
Joined: Mon Apr 24, 2017 7:48 pm
Location: New York

### Re: DM41X Beta Programme

Although it drew a strange smile from my wife watching me hold my 41X pressed to my head to listen to BEEP around 20 times, I could not hear the problem you mentioned.

I'm glad that resetting it cleared the issue, but I'm curious what the cause was, so if it comes back. please do try to keep track of what preceded that.

Glad you jumped-in and got a BETA 41X, we look forward to more feedback as you explore further.
--bob p

DM42: β00071 & 00282, DM41X: β00071 & 00656, DM10L: 071/100
Mark Hardman
Posts: 116
Joined: Wed May 03, 2017 3:26 am
Location: Houston, TX

### Re: DM41X Beta Programme

EM41 wrote:
Sat Apr 04, 2020 8:44 pm
Can you or someone else check if this is common or just my machine.
I hear a distinct click as the sound drops out between the first and second tone.

ETA: This is most noticeable in SLOW mode. There is no problem in FAST mode and when the 41X is attached to USB power.
DM42: β00043, β00065, 00357 / DM41X: β00054, 00445
DM10L: 017/100, DM11L: 00121, DM12L: 02005, DM15L: 00523, DM16L: 00008, DM41L: 00111
EM41
Posts: 170
Joined: Mon Mar 30, 2020 12:10 am
Location: Overijssel Netherlands

### Re: DM41X Beta Programme

Just did some tests and the drop is still there it only shifted to the very beginning of the first tone so it is more difficult to hear.
I changed from SLOW to FAST and this seems to shift the drop a bit, USB power does the same but its still there.
Mark Hardman wrote:
Sun Apr 05, 2020 6:29 am
EM41 wrote:
Sat Apr 04, 2020 8:44 pm
Can you or someone else check if this is common or just my machine.
I hear a distinct click as the sound drops out between the first and second tone.

ETA: This is most noticeable in SLOW mode. There is no problem in FAST mode and when the 41X is attached to USB power.
Same here but this is normal also on the original HP41.
To prove I am not (completely) crazy, see the picture below drop is in the middle of the first tone.
(made with the built in mic of my laptop so bad quality).

BTW, its nor problematic at all for me but its there. And I love this machine already
Attachments
beep 41X.png (99.45 KiB) Viewed 945 times
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
PierreMengisen
Posts: 142
Joined: Wed Nov 29, 2017 1:38 pm
Location: Neuchâtel CH

### Re: DM41X Beta Programme

PierreMengisen wrote:
Sat Apr 04, 2020 9:55 pm
My BEEP is totaly OK. DM41X sn:00030
Oh sorry, I didn't listen well. But it don't occur with TONE 7.
Pierre
[TI59 with PC100C; TI-84 Plus CE-T; HP41CV with HP IL loop & 2*82161A DCD & 82162 TP; HP15C; HP28S; DM41; DM41L; DM42; DM41X]
EM41
Posts: 170
Joined: Mon Mar 30, 2020 12:10 am
Location: Overijssel Netherlands

### Re: DM41X Beta Programme

Good question I din't check the tones in detail before but now I checked tone 7 and its the same as in beep.
It goes wrong about 3 in 10 times now. Tone 9 has the same the other seem ok.
HP41C (2x), HP41CV, HP41CX, DM41X β, DM41X, DM42, HP11C, HP48G, HP97
isene
Posts: 47
Joined: Sat Jul 22, 2017 2:02 am

### Re: DM41X Beta Programme

Same break in the first tone of the BEEP here (SN# 88)
pcscote
Posts: 142
Joined: Tue May 02, 2017 12:12 pm

### Re: DM41X Beta Programme

SN#56 : same problem here, latest firmware.

The problem seem related to the keyboard scanning, interrupt or something in this line.

If you press and keep the BEEP key (shift+4) pressed and you release it just before the expiration (NULL) then the BEEP is ok.
If you press the BEEP key (shift+4) and release it very fast you get the break in the first tone and giving you a BEEP with 5 tones.

I have created the following test program:

Code: Select all

LBL "TT"
FC? 01
SLOW
FS? 01
FAST
FS? 02
PSE
BEEP
BEEP
BEEP
FC? 01
FAST
FS? 01
SLOW
FS? 02
PSE
BEEP
BEEP
BEEP
END

CF 01 -> use the pattern SLOW/FAST
SF 01 -> use the pattern FAST/SLOW
CF 02 -> does not execute a PSE before the three BEEP sequence
SF 02 -> execute a PSE before the three BEEP sequence

I have run it at least 50 times and this is what I get:

CF 01 & CF 02 : all the BEEP are ok (4 tones) but on very rare occasion the first BEEP has the bug (5 tones)
CF 01 & SF 02 : the first and the fourth BEEP has the bug (5 tones) while the other are ok (4 tones).
SF 01 & CF 02 : all the BEEP are ok (4 tones) but on very rare occasion the first BEEP has the bug (5 tones)
SF 01 & SF 02 : the first and the fourth BEEP has the bug (5 tones) while the other are ok (4 tones).

Sylvain
[DM1x/DM1xL/DM41/DM41L/DM41X/DM42]