NAU – Mercury

Bydonfrank

Mercury 400 Alarm

Found that the PS204, which is a +12VDC and +5VDC power supply had a capacitor that was bulging.  Tested the +12VDC and observed the following:

When OK12.4 VDC0.1 VAC
When Beeping11.8 VDC0.8 VAC
At Startup10.5 VDC1.5V AC

Ordered replacement power supply from Mouser Electronics. 

Part Number: HCC512-A+G

Also replaced two power supply fans for the Mercury.

Newark part number: 

ADDA  AA1281HB-AT  Axial Fan, Square, High Speed, Ball, 115 VAC, 120 mm, 38 mm, AA12038 Series, 94.5 cu.ft/min

ADDA AA1281HB-AT
ADDA

Manufacturer:ADDAManufacturer Part No:AA1281HB-ATNewark Part No.:58P0728Product RangeAA12038 SeriesTechnical 

Inova 500 sidebands

Customer reported 120 Hz sidebands.  Appears that the PTS620 has power supply issues causing 120 Hz sidebands in spectra.  It is more pronounced with channel 1 then channel 2, but it is present in both.  

Customer also has a PTS D320 on channel 3 and 4.  When I tried to swap that in for testing, the frequency is off by several MHz on both channels.  So, PTS D320 is also bad.  

   EnlargeMouser Part #:675-HCC512A-GManufacturer Part #:

HCC512-A+G

Manufacturer:

Condor / SL Power

Description:Linear Power Supplies 5V@6A 9-15V @ 2.5AHCC512-A+G Datasheet

Product Category:Linear Power Supplies 
Manufacturer:SL Power 
RoHS:RoHS Compliant Details 
Product:Linear Supplies 
Output Power:30 W 
Input Voltage:100 VAC/120 VAC/215 VAC/230 VAC/240 VAC 
Number of Outputs:2 Output 
Output Voltage-Channel 1:5 VDC 
Output Current-Channel 1:6 A 
Output Voltage-Channel 2:9 VDC to 15 VDC Adjustable 
Output Current-Channel 2:2.5 A 
Mounting Style:Panel 
Length:9.38 in 
Width:4.88 in 
Height:2.75 in 
Open Frame/Enclosed:Open Frame 
Commercial/Medical:Commercial 
Brand:Condor / SL Power 
Load Regulation:Regulated 
Series:Commercial Linear 
Factory Pack Quantity:5 
Part # Aliases:HCC512-A+-G

Similar Posts

  • UMKC – 2H Signal

    Bydonfrank

    Customer reported no 2H signal during find lock function or gradient shimming. Other issues, AMT had bad fan and the console main switch would not stay on. Replaced fans in AMT Replaced main power switch Tested system RF When testing RF found that output of AMT had good power out for H1 but the RF…

  • Arrowhead – 2H Signal

    Bydonfrank

    Customer reported that they could not lock (using 2H) or gradient shim. Looked at 2H RF path and good signal coming out of console to probe. Problem must be on receive side. Swapped the following parts for troubleshooting: 2H Diplexer Lock Preamp 2H RF Relay (verified operation) 2H Filter (bypassed) Believe issue is the Mixer…

  • Concordia PM_080921

    Bydonfrank

    Probe HCN_0775_sem HCN_3512_sem Shims HCN_0775_sem_lk_d20 HCN_3512_sem_lk_d2o h1pw90 7.8us @ 52 7.5us @ 51 lshp_ns 0.74/8.59/10.6 0.60/5.18/8.09 lshp 0.33/2.73/4.92 0.30/1.89/2.09 h1sn 702:1 877:1 f19pw90 9us @ 52 — f19sn 109:1 — c13pwx 14.8us @ 60 24.7us @ 60 c13gamah2 8065 @ 43 8065 @ 48 n15pwx 33us @ 60 — gzprofile 32.8 G/cm 62.8 G/cm gzrecovery…

  • Odyssey – SMS Install

    Bydonfrank

    Completed Install of SMS Robot and SYS-V Controller. Customer had table, cables and interface cards. Vertical Reach Rotation CP1:AT.HAND.GP 1.8 30.3 89.9 CP1:CLEAR.HAND.GP 24.8 0.0 89.9 HAND.GP 16.2 19.9 89.8 CP31:RACK P1 19.5 4.7 76.3 CP31:RACK P2 19.5 4.6 43.2 CP31:RACK P3 19.5 27.2 49.3 CP191:MAGNET 19.3 21.9 272.0 CP191:CLEAR 34.0 0.0 272.0

  • RFUMS – 070324

    Bydonfrank

    System had several issues including bad Digital PS, inconsistent shims and intermittent RF output. Believe the shim issues were due to bad digital PS. Still having intermittent RF issues. Also, the CPU board was bricked. I was able to restore it to defaults using procedure below. Attach a terminal connection to the Acq CPU Diag…