LeCroy 6010 - Revision history

Mcmaster at 06:44, 9 March 2019

2019-03-09T06:44:11Z

Mcmaster at 06:43, 9 March 2019

2019-03-09T06:43:55Z

Mcmaster at 06:43, 9 March 2019

2019-03-09T06:43:42Z

Show changes

Mcmaster: Created page with ""Magic Controller" = External = {{mcmaster:lecroy:2228a:ext_front.jpg?300}} `LeCroy 2228A TDC COM STOP COM START STOP 0 1 2 3 4 5 6 7 CLEAR 63348` {{mcmaster..."

2019-03-09T06:41:15Z

Created page with ""Magic Controller" = External = {{mcmaster:lecroy:2228a:ext_front.jpg?300}} <code> LeCroy 2228A TDC COM STOP COM START STOP 0 1 2 3 4 5 6 7 CLEAR 63348 </code> {{mcmaster..."

New page

"Magic Controller"

= External =

{{mcmaster:lecroy:2228a:ext_front.jpg?300}}

<code>
LeCroy
2228A
TDC

COM STOP
COM START
STOP
0
1
2
3
4
5
6
7
CLEAR
63348
</code>

{{mcmaster:lecroy:2228a:ext_top.jpg?300}}

<code>
FULL SCALE COUNT
TEST POINT

PICOSEC./COUNT SELECT
250
100
50

LeCroy
MODEL 2228A
CURRENTS
-6V 550 mA
+6V 600 mA
-24V 140 mA
+24V 25 mA
LeCroy RESEARCH SYSTEMS

LAM SELECT
END OF CONVERSION (EOC)
EOC AND ADDRESSED CHANNEL VALID
OC AND ANY CHANNEL VALID
OFF

Q SELECT
EOC
EOC AND ADDRESSED CHANNEL VALID
EOC AND ANY CHANNEL VALID

CAUTION
CRATE POWER SHOULD BE TURNED OFF DURING INSERTION AND REMOVAL OF UNIT
TO AVOID POSSIBLE DAMAGE CAUSED BY MOMENTARY MISALIGNMENT OF CONTACTS
</code>

{{mcmaster:lecroy:2228a:ext_btm.jpg?300}}

= Internal =

{{mcmaster:lecroy:2228a:int_top.jpg?300}}

{{mcmaster:lecroy:2228a:int_btm.jpg?300}}

Key ICs:
* MOTOROLA MC10102P: input quad 2 input NOR gate
''' mixes test trigger?
* RCA CA3046: NPN transistor array
* NE NE521N: dual differential comparator / sense amp
* LeCroy SC100: ADC?

= 2015-06-04 repair =

11 bit ADC (0x600 full range) but values were as follows for the two units I tested:

Slot 9 (broken knob)
<code>
CH0: 0x000632
CH1: 0x000644
CH2: 0x000632
CH3: 0x000358
CH4: 0x000637
CH5: 0x000525
CH6: 0x00062A
CH7: 0x00063A
</code>

Slot 11 (good knob)
<code>
CH0: 0x000699
CH1: 0x000691
CH2: 0x00069D
CH3: 0x000353
CH4: 0x000696
CH5: 0x00069F
CH6: 0x00068C
CH7: 0x000686
</code>

Both units seem to have constant offset errors, possibly the test pattern generator. Also, CH3 is flaky on both units...coincidence?

Ran a 14 hour burn in test in test mode (slot 11 / good knob):

{{:mcmaster:lecroy:2228a:2015-06-04_n11_cal_all.png?300|}}

You can see considerable drift on channel 3 (yellow), the channel with a bad reading. Other channels were pretty stable, within +/- 1 DN over the entire period. Swapped some ICs around and issue seems to have gone away.

More measurements after swapping:

{{:mcmaster:lecroy:2228a:2015-06-04_n11_03_cal_all.png?300|}}

Took about 1200 seconds (20 min) to settle.

Test code: https:''github.com/JohnDMcMaster/uvscada/blob/master/lecroy_6010/2228a_cal.py

@@ Line 1: / Line 1: @@
 "Magic Controller"
-= External =
+[[File:mcmaster_lecroy_6010_magic_controller_front.jpg|100 px]]
-[[File:mcmaster_lecroy_2228a_ext_front.jpg|300 px]]
+Page to collect info on controlling this
-[[File:mcmaster_lecroy_2228a_ext_top.jpg|300 px]]
+= GPIB =
-  FULL SCALE COUNT
+Primary goal of this project is to learn how to communicate over GPIB.  Some action I do causes it to twitch on my CAMAC bus analyzer but I can't get it to do much else.  I got it to return some data when I messed with the DOWNLOAD menu but not when I actually tried to read a device register.
-= Internal =
+[[File:mcmaster_lectroy_6010_magic_controller_composite_main.png|300 px]]
-[[File:mcmaster_lecroy_2228a_int_top.jpg|300 px]]
+More screen captures: https://siliconpr0n.org/uv/lecroy/6010_magic_controller/composite_caps/
-[[File:mcmaster_lecroy_2228a_int_btm.jpg|300 px]]
+You need to use this to select RS-232 vs GPIB, baud setitngs, etc.  I have yet to get any activity over RS-232 so sticking for GPIB for now.
-= 2015-06-04 repair =
+= RS-232 =
-bit ADC (0x600 full range) but values were as follows for the two units I tested:
+[[File:mcmaster_lectroy_6010_magic_controller_composite_aux_ports2.png|300 px]]
-Slot 9 (broken knob)
+Above: configuration screen
-Slot 11 (good knob)
+Supports:
-  CH0: 0x000699
+* Baud: 75-19200
-  CH1: 0x000691
+* Data bits: at least 7, 8
-  CH2: 0x00069D
+* Stop bits: at least 1
-  CH3: 0x000353
+* Parity: odd, even, none
-  CH4: 0x000696
+* Flow control: at least CTS/RTS off
-Both units seem to have constant offset errors, possibly the test pattern generator.  Also, CH3 is flaky on both units...coincidence?
+When I got it settings were:
-[[File:mcmaster_lecroy_2228a_2015-06-04_n11_cal_all.png|300 px]]
+= Keyboard =
-You can see considerable drift on channel 3 (yellow), the channel with a bad reading.  Other channels were pretty stable, within +/- 1 DN over the entire period.  Swapped some ICs around and issue seems to have gone away.
+The keyboard (where does this attach?) serial port settings are configured separately than the "RS-232C" settings but are on the same screen
-More measurements after swapping:
+= Circuit boards =
-[[File:mcmaster_lecroy_2228a_2015-06-04_n11_03_cal_all.png|300 px]]
+== Board 1 ==
-Took about 1200 seconds (20 min) to settle.
+At bottom
-Test code: https://github.com/JohnDMcMaster/uvscada/blob/master/lecroy_6010/2228a_cal.py
+Chips:

← Older revision		Revision as of 06:43, 9 March 2019
Line 1:		Line 1:
		+	"Magic Controller"
		+
	= External =		= External =

LeCroy 6010 - Revision history

Mcmaster at 06:44, 9 March 2019

Mcmaster at 06:43, 9 March 2019

Mcmaster at 06:43, 9 March 2019

Mcmaster: Created page with ""Magic Controller" = External = {{mcmaster:lecroy:2228a:ext_front.jpg?300}} LeCroy 2228A TDC COM STOP COM START STOP 0 1 2 3 4 5 6 7 CLEAR 63348 {{mcmaster..."

Mcmaster: Created page with ""Magic Controller" = External = {{mcmaster:lecroy:2228a:ext_front.jpg?300}} `LeCroy 2228A TDC COM STOP COM START STOP 0 1 2 3 4 5 6 7 CLEAR 63348` {{mcmaster..."