From the Auction picture
HP-IB ADRS: 18
Copyright HP 1986
8590A rev 14.10.88
FAIL: 0308 0000000000
Fail code:
0308 code according to one documentation is:
0 N/A
3 A16 led 9; Ram Odd FF4000; On during normal operation
A16 led 8; Ram Even FF4000; On during normal operation
0 N/A
8 A16 led 3; ROM ODD B LSB; IC U6
The Fail code then indicates an issue with ROM Checksum. The RAM Code indicates RAM is present at FF4000.
EPROM are U6, U7, U23, U24. PROM 32K X8. 256K.
Also have noise on the RF.
Error code 0308 appears after reset. Calibration passes, then after sometimes the error code 1308 appears instead.
1308:
68230
ram odd FF4000 (expected)
ram even FF4000 (expected)
N/a
rom odd b lsb U6
Eeproms are 1818-3329, 256K and has label with Rev F from 1989.
Got firmware dumps from http://bluefeathertech.com/
My U6 EPROM was checksumming at 5C00, the right one is 5C01, one naughty byte got eaten by a wild cosmic ray.
Flashed a new 27C256 with right dump, no more error !
The RF is still wacked up but it’s a (small) progress.
First converter has “-23dBm” handwritten on it, mmh.
Diodes of it were replaced by a single HSMS2822.
Calibration data is the absolute same, nothing better, before and after:
One thing to note, cal off, signal is clean, cal on, the signal has a weird dip in the middle of it.
Cal on vs Cal off:
Signal generator output -65dBm, spectrum analyzer displays -53dBm, ±-12dBm seems ≈consistent between 10MHz and 1GHz.
Spectrum analyzer is off by ±2MHz.
Did some measurements.
Cal output should be OK at ~300MHz.
2ND LO is at 1730.6MHz (service manual says 1728.7MHz+-0.5MHz, so let’s say it’s ok)
Calibration still not much better.
To check: https://web.archive.org/web/20201127233323/https://community.keysight.com/thread/5422
More tests, checks done. Everything looks ok, powers and frequencies are good.
Did one more test.
Injected 200MHz at -20dBM into a tinySA, reading of -20.4dBm, switched that signal into RF IN of the first mixer, IF OUT to the tinySA, reading of -71dBm, so the first mixer is eating ~50dBm.
Received a second hand unknown state First Converter and Second Converter.
First Converter has been tested, -20dBM in RF IN, around ~-71dBm onIF OUT, so if this FC is ok, I get the same measurements as my repaired one.
Second hand First and Second converters don’t change anything.
Still having the same garbled datas. However I have fed 299.9MHz from a known calibrated generator, and calibrated the SA 2ND Lo Frequency (C4) so there is no more a +-2MHz offset. Also re-calibrated the calibrator output after doing that.
Running [CAL][MORE][CONF TEST] renders a… lot of errors, at least:
POS-PK FAIL
SAMPLE FAIL
POS-PK FAIL
VID-BW FAIL 100000
VID-BW FAIL 30000
VID-BW FAIL 10000
VID-BW FAIL 1000
RES-BW NOISE FAIL 3000000
RES-BW NOISE FAIL 1000000
RES-BW NOISE FAIL 300000
RES-BW NOISE FAIL 100000
RES-BW NOISE FAIL 30000
RES-BW NOISE FAIL 10000
RES-BW NOISE FAIL 3
RES-BW NOISE FAIL 1000
STEP GAIN/ATTN FAIL 10
STEP GAIN/ATTN FAIL 20
RES-BW SHAPE FAIL 3000000
RES-BW SHAPE FAIL 1000000
RES-BW SHAPE FAIL 300000
RES-BW SHAPE FAIL 100000
RES-BW SHAPE FAIL 30000
RES-BW SHAPE FAIL 10000
I won’t upload them here, but they are all available Here, organised as sub-folders in high-res.
]]>Calibrated and checked in 2009.
Calibrations OK.
No screen burn.
RS232 tested OK.
GPIB seems faulty.
Works, version 1.84
List of card i have, and i probably want someday.
Name | I have | Description | Specs |
---|---|---|---|
16510B | YES | Programmable Logic Analyzer Module | 100MHz timing, 35MHz state, 80 channels |
16520A, 16521A | no | Pattern Generation Module (20 Master, 21 Extension) | 50MBits/s |
16532A | no | Oscilloscope Module | 1GSa/s |
HP E2459A 68040 probe compatible with cards :
Two cards per CPU socket.
Name | I want | Description |
---|---|---|
10269C | Yes | General purpose probe thing |
10300B (64683A) Z80 | Yes | CPU Probe |
10304B (64655A) 8085 | CPU Probe | |
10305B (64653A) 8086/8088 | CPU Probe | |
10314B (64659A) 80386 | CPU Probe | |
10308B (64671A) 6809/6809E | CPU Probe | |
10311B (64670A) 68000/68010 | Yes | CPU Probe |
10342B Bus Preprocessor | Maybe | Bus Preprocessor |
Alternative: Just getting a 10269C and build custom probes terminations.
Warning: All probes have software for reverse assembly stuff.
Backup of the EEPROMS
DVM up to 1100V related to gnd, 500 to earth.
Working, DVM option needs calibration.
Standard + options:
Working, frequency is spot on.
EMI filter died, magic smoke and juice everywhere.
P/N is FN370-6-21 from Schaffner. Part ordered.
EMI filter replaced, checked the old wiring and new one, and if the old-and-new internal voltage selector was the same.
Fuse was a large one, new unit use a small fuse, but the fuse holder is inter-changeable from units.
new / old
100 = 100
120 = 120
230 = 220
240 = 240
When viewing with connectors pointing top, filter with gnd on bottom:
black/orange black yellow/black
marroon black/green black/red + blue
marroon connect to the one right bellow it
blue connect to top-right of GND