NewScope-8 Operating Manual
Contents
1. 2014 SIMMCONN Labs LLC All rights reserved NewScope 8 Operating Manual For Kits with Main Board Serial Number 8001 and above NewScope 8 Operating Manual WVU OC UICTIONN e E E conans nav ennntneostesectatestsowssmonbadens 4 IAS ANNUUM e E E AE EE cde TAE PE ATA E nee E E aguas E 5 2 1 eE E ai oa rE cc sc E E A E A A A E A E EA T ees 5 2 2 Installation of the NewScope 8 Kit cceecccccesssececeesececceecceeeessececeuseceeeeneceeseuseecesseaecessuneceesagens 7 2 2 1 REA BETOPS INSTA AUION csSacnsrcancieesearscencesnsvintnnnsice N A E E E N E A 7 2 2 2 Pepene 3G ZA UMUC arnar E EE E E E 7 2 2 3 RETO VE ME TONE PINE I se acaitect aris yosencavoneasavecessaseatecatavoneasauece sean yond oncasameceaaneetecasvooreasameenees 7 2 2 4 Remove the metalized glass WINKOW cc csscccsseccecesecceescccesceceececeeceeeesceseuscesauecesseeeneness 8 225 Replace the Front Bezel required if the kit comes with a modified bezel 9 2 2 6 Remove the XYZ driver boards Optional cccccesccccseccceseceeeeecsceneeseesceseeceeeeeseneeeeeees 10 2 2 7 Remove the CRT and high voltage MOUIE cccesscccssscecesececeseceeeececeeceeeesceseneceseeeeeees 10 2 2 8 Install the NewScope 8 main board siscscisicevesccsvsieareinncbadssasencsndeaentitnaseeistsnwedseisaeaiesasvodaventons 11 2 2 9 Wire connections on the 85662A Main board ccsseeccccceeeeseecceeeeeeececsesaeeeeeeeeeaaeeeeeeeeas 13 2240 InStallPthe Power Plug DO Al asct2. Coax cable for Y connection Nylon wire ties 4 Note Cable may differ depending on LCD Panel 1 Cable may differ depending on LCD Panel 1 For Power Plug board without LED driver PNP PR Note 1 Shipped pre assembled as LCD panel assembly 2 The LCD panel assembly is installed on the 85662A bezel for shipping purpose Please remove the LCD panel assembly from the bezel for installation 2 2 Installation of the NewScope 8 Kit Installation should be performed by a qualified technical person who is familiar with the 85662A unit The Kit installation time is approximately 3 hours Please refer to spectrum analyzer service manuals for location of the assemblies 2 2 1 Read before installation Please treat the parts and assemblies with care during installation Take the following guidelines when installing the kit 1 Do not use power tools to fasten screws Use a manual screwdriver so that you can see and feel if something is not well aligned If you meet considerable resistance when fastening a screw back off and try again 2 The connectors are fragile If you meet resistance when trying to make a connection wiggle the connector gently left and right let it find its way and then gradually plug in Do the same when disconnecting a cable 3 Do not force anything into position If something doesn t seem to fit give it a little wiggle room and it will likely correct itself 4 Before you try to modify some part that do
3. 1 NewScope 8 Main board for VGA kit 2 1 LVDS_ADP Display Board LVDS Adapter 1 3 1 Pwr_plg Power Plug board 4 1 85662A Bridge 85662A Bridge board 5 1 18 0001 018 Display Link Cable LVDS 20 Conductor 1 6 1 18 0001 015 Display Board Control Cable 6 Conductor 7 1 18 0001 019 Power Plug Board Control Cable 3 Conductor 8 1 18 0001 017 LCD Backlight Cable 1 9 4 4 x 3 8 Pan head Philips self tapping 1 screw 10 1 5 7 LCD Panel 1 11 1 19 0001 011 5 7 LCD Panel Bracket 12 4 Nylon Flat Washer 3 5x7x1mm 1 13 2 M3x8 Flat head Philips screw 14 2 6 32 x Flat head Philips Screw 15 2 6 32 KEP Nut 16 1 Foam strip w adhesive backing 10mm 17 2 2 Wire for LRTRC and FS connection 18 1 14 Wire for CRT_DSBL connection 19 1 Coax cable for Y connection 20 2 Nylon wire ties 4 Note 1 Shipped pre assembled as LCD panel assembly Item Qty Reference Description Note 1 1 NewScope 8 Main board for VGA kit 2 1 LVDS_ADP Display Board LVDS Adapter 1 For TTL Panels only 3 1 Pwr_plg Power Plug board 4 1 85662A Bridge 85662A Bridge board 5 1 18 0001 018 Display Link Cable LVDS 20 Conductor 1 6 1 18 0001 015 Display Board Control Cable 6 Conductor 7 1 18 0001 019 Power Plug Board Control Cable 3 to 5 Cable may differ Conductor depending on LCD Panel 8 1 LCD Backlight Cable Cable may differ 10 11 12 13 14 15 16 17 18 19 20 Note NTE ITPININ IN N B Pye PRP 19 0001 012 19 0001 0
4. Disconnect the three SMB cables that are connected to the top of the A3 card cage Remove the top cover of the A3 card cage Remove A3A4 from the A3 card cage the card with YELLOW extraction levers 11 Make two loops with wire ties These will be the extraction aid should you need to remove the board later Rest the loop in the PCB notch Feed the display link cable and display board control cable through the venting holes into the A3 card cage Plug the display board control cable 6 conductor to the NewScope 8 Main board P19 Plug the display link cable to the NewScope 8 Main board P2 Note the end with a white dot aligns with the triangle on the PCB Install the main board into the A3A4 card cage slot route the display link cable and the display board control cable between the A3 card cage and the A1A3 shielding cage to the LCD panel area Set Main board jumper P1 base on the orientation of the LCD panel See section 3 5 LCD panel pixel Replace the A3 card cage top cover Reconnect the three SMB cables that were connected through the top cover of the A3 card cage 12 2 2 9 Wire connections on the 85662A main board Note The signal names provided in parenthesis in this section are for referencing to the HP service manual They may or may not be labeled on the PCB CRT_DSBL VATA AL alate sa alad Efe e Wo Phe eP ep ep SES Bees a A3XA4P1 r GF a LRTRC FEEL4 LAGA ka a a al a a iK
5. TFT color LCD with VGA 640 x 480 XGA 1024 x 768 or WXGA 1280x800 resolutions The key features of the Kit include e Bitmap font with hand optimized glyphs gives better clarity over the original vector font when rendered on a raster LCD panel e Enlarged marker in distinct shape and color e Resolution enhancement takes advantage of the 1024 point original resolution of the 85662A display and gives a smooth curve with reduced jaggedness e Four display schemes selectable by the align pot e Sweeps of 10ms and below are now digitized and stored in trace A memory which can be captured via GPIB The X axis is timed with a crystal oscillator that requires no adjustment e Compatible with existing GPIB automation software e The LCD backlight is powered from the source that was used for the CRT high voltage module LWA SPECTR MKR 99 990 MHz REF 0 0 dBm ATTEN 10 dB 11 00 dBm x INTENSITY DISPLAY UINE 45 0 dBm FREQ ZERO STANDBY Py ain 8 6 RECORDER dBm aise LOWER UPPER LEFT RIGHT CENTER 98 38 MHz gt SPAN 5 00 MHz RES BW 100 kHz VBW 300 kHz SWP 20 0 msec Figure 1 NewScope 8 6 4 VGA Kit shown with default NewScope display scheme 2 Installation Refer to the following tables for a list of parts included in the NewScope 8 Kit Verify that all parts listed are included in your kit Note items may differ with different LCD panel configurations Item Qty Reference Description Note 1
6. below is digitized and stored in the trace memory The horizontal sweep of the digitizing system is timed by a crystal oscillator and requires no adjustment The vertical gain and offset need to be adjusted in order to be consistent with the ADC in the 85662A The Zero Span Fast Sweep Vertical adjustment should be performed after the Track and Hold adjustments in the 8568 8566 Performance Tests and Adjustments Manual 4 1 1 Equipment Needed Any RF signal generator that is capable of generating AM modulated signal up to 90 modulation depth with output carrier frequency within the frequency range of the spectrum analyzer such as HP 8656B The modulating signal needs to be between 400Hz and 1KHz It can be any kind of repetitive signal such as sine wave or square wave An external audio signal generator is needed if the RF signal generator does not have internal modulation source 19 4 1 2 Adjustment Procedure Connect the output of the RF signal generator to the input of the spectrum analyzer Set RF carrier frequency to any frequency 100MHz for example level to 10dBm AM modulation depth to 90 and audio frequency to 400Hz or 1KHz Turn on the AM modulation and RF output Set the spectrum analyzer center frequency to the RF carrier frequency Set frequency span to zero Hz Set sweep speed to 20ms linear scale free run video trigger Set RBW and VBW high enough gt 10KHz to not attenuate the modulating signal Adjust reference leve
7. on top and bottom Green Arrow in picture Fasten the front bezel using the 6 32 screws from the left side of the unit Engage the KEP nuts while feeding the screw Tighten the screws first then the KEP nuts Install the remaining frame screws that were removed in step 2 2 2 Be careful not to pinch any cables between the front panel and the frame 15 Turn the unit face up Replace the EMI glass and the plastic CRT bezel removed in step 2 2 3 2 2 12 Install LCD panel 6 5 VGA Kit 2 2 14 Finishing installation Replace the bottom cover On the 6 5 TTL panel the Display Board LVDS Adapter is very close to the lower side mounting hole Use the original mounting screw and do not install the KEP nut at this location Use the supplied 6 32 screw and install the KEP nut at the upper side mounting hole only Refer to previous section 2 2 11 for other installation steps On the 6 5 XGA panel the LVDS cable is very close to the lower side mounting hole Use caution not to damage the wires when installing the KEP nut Refer to previous section 2 2 11 for other installation steps Turn the front panel intensity knob to the 12 o clock position Reconnect the 85662A to the spectrum analyzer RF section with the interconnect cables Reconnect AC power Turn on spectrum analyzer and verify correct operation Replace top cover 16 3 Operations 3 1 Intensity control The intensity knob
8. plastic CRT bezel bottom forward until it clears the mounting tabs on the inner bezel casting then slide it downward to free its upper retaining tabs and remove it Carefully remove the metalized glass window from the inner bezel casting Clean the glass with glass cleaner 2 2 5 Replace the Front Bezel required if the kit comes with a modified bezel Loosen the set screws on the Level and Intensity knobs using 0 050 hex wrench Remove the knobs and the retaining nuts underneath them Lift the front dress panel and set it aside On some units the front dress panel is taped to the front subpanel Remove the nine 4 40 pan head Philips screws and remove the front panel PCB Slowly separate the front dress panel from the subpanel by pushing from the PCB side Remove the eight 4 40 flat head screws on the front of the front subpanel Remove the subpanel from the front bezel In the kit that you received the LCD panel assembly is installed in the bezel for shipping purpose It needs to be removed for installation 6 5 VGA panel assembly shown Undo the four screws on the top bottom and side of the bezel Remove the LCD panel assembly Save the fasteners for installation Replace the original bezel with the modified bezel Install the subpanel and keyboard PCB A1A1 to the new bezel Replace the front dress panel retaining nuts Level knob and Intensity knob Return the undamaged original
9. works as before You may not be able to completely dim the backlight with the intensity knob with LCD panels using CCFL backlight due to the minimum operating current requirement of the CCFL tube A noisy intensity pot may cause surges in the backlight operating current It should be cleaned or replaced The intensity is set to max for the original CRT circuit 3 2 Focus control The Focus control does not have any effect to the NewScope display The Focus pot voltage is forwarded to the main board 3 3 Align control The Align control is used by the NewScope display to switch between display schemes There are four preset user configurable display schemes Turning the pot clockwise with a screw driver or a tuning tool will change the display scheme from 1 to 4 The preset display schemes are listed in Table 2 The Align control is set to center OV for the original CRT circuit Table 4 Default Display Schemes for 6 4 VGA Kit Display Items NewScope 8560EC_ Original Mono Inverted 89 Green Resolution Enhancement Yes No NO NO 66 White 75 Cyan 75 Green 50 Cyan 50 Green Small Font D1 Dotted graticule is not available on 5 7 or 7 LCD Panels 17 MKR 97 125 MHz hp REF 0 0 dBm ATTEN 10 dB ___ 93 40 dBm 10 dB MKR 99 990 MHz 11 00 dBm hp REF 0 0 dBm ATTEN 10 dB 10 dB DISPLAY UINE j L l 45 0 HBm j i j DL 45 0 dBm j DL CENTER 98 38 MH SPAN 5 00 MHz CENTER 90 30 MHz EAR _ SPAN 5 0
10. 0 MHz i RES BW 100 kHz VBW 300 kHz SUP 20 0 msec RES BW 100 kHz VBW 300 kHz SWP 20 0 msec CENTER 98 38 MHz SPAN 5 00 MHz RES BW 100 kHz VBW 300 kHz SWP 20 0 ms Figure 2 8560EC Display Scheme Figure 3 Original Display Scheme Figure 4 Inverted Display Scheme 3 4 Display on off control Display off and on shift g and shift h still work as before The backlight is turned off and the LCD outputs blank screen when shift g is pressed Except for the display the instrument operation is not affected When shift h is pressed the NewScope display firmware is reinitialized Shift g and shift h can be used to reset the NewScope display in case of malfunction 3 5 LCD panel pixel geometry The Resolution Enhancement in the NewScope display scheme is sensitive to the LCD panel pixel geometry The jumper P1 pin 1 3 selects matching geometry for the best result When the jumper block is not installed the NewScope display expects an R G B pixel order from left to right A jumper block should be installed if the panel is installed with B G R pixel order The NewScope 8 Kit is shipped with correct jumper setting If the user is not sure about the pixel order he she should try a different setting if apparent color fringes appear on the sides of the graphic curves 3 6 LEDs There are two LEDs on the main board D1 and D2 D1 serves as activity LED Its duty ratio roughly indicates the display CPU utilization The longer it stays on the lower th
11. 13 CCFL Backlight Inverter 12VDC 6 5 VGA LCD Panel LCD Panel Bracket Modified 85662A bezel for 6 5 LCD panel M2 x 3 Pan head T 6 screw M3 x 8 Flat head Philips screw 6 32 x Flat head Philips Screw 6 32 KEP Nut 2 Wire for LRTRC and FS connection 14 Wire for CRT_DSBL connection Coax cable for Y connection Nylon wire ties 4 1 Shipped pre assembled as LCD panel assembly depending on LCD Panel For 6 5 CCFL Panels only 1 PN 2 The LCD panel assembly is installed on the 85662A bezel for shipping purpose Please remove the LCD panel assembly from the bezel for installation Item a uk WN 10 11 12 13 14 15 16 17 18 19 20 Qty PiP FP RP Pie NO RP rPFNN NN BP FP FI eR Reference NewScope 8 Pwr_plg 85662A Bridge 18 0001 008 18 0001 015 18 0001 019 18 0001 021 19 0001 009 19 0001 013 Description Main board for XGA WXGA kit Power Plug board 85662A Bridge board Display Link Cable LVDS 20 Conductor Display Board Control Cable 6 Conductor Power Plug Board Control Cable 3 to 5 Conductor LCD Backlight Cable 12 conductor LED Backlight driver 12VDC input LED Backlight driver cable 6 conductor 6 5 XGA LCD Panel LCD Panel Bracket Modified 85662A bezel for 6 5 LCD panel M2 x 3 Pan head T 6 screw M3x8 Flat head Philips screw 6 32 x Flat head Philips Screw 6 32 KEP Nut 2 Wire for LRTRC and FS connection 14 Wire for CRT_DSBL connection
12. T3 Vi epepeple wlelelejefe e A3XA3P2 s fe 4 BBM oles amp f z E 279 23 leg enreenel wnere ee e242 A3XA2P2 Ol ae a ee a aa T i This is the overview of the wiring locations from bottom of the unit Solder a 2 wire between A3XA2P2 pin 27 and A3XA4P1 pin 6 signal name LRTRC on the underside of the A3 motherboard Solder a 2 wire between A3XA2P2 pin 23 and A3XA4P1 pin 24 signal name FS Route a coax cable under the 50 pin ribbon cable and solder the center conductor to A3XA4P1 pin 8 signal name Y and the shield GND to A3XA4P1 pin 26 On the other end of the cable solder the center conductor to A3XA2P1 pin 4 and the shield to A3XA2P1 pin 21 located diagonally from pin 4 13 Solder a 14 wire between A4XA9P1 pin 3 signal name CRT_DSBL and A3XA4P1 pin 1 Run the wire under the 50 pin ribbon cable De solder and discard the eight L shaped pins that the CRT plugged into on the motherboard This step helps to prevent the pins from shorting to the instrument cover 2 2 10 Install the Power Plug board Plug the 6 pin end of the Power Plug Board control cable on the Power Plug board Install the Power Plug board in A1XA3P1 Note that pin 1 is facing the front of the unit Route the cable through the large round opening on the A1A3 high voltage power supply shielding cage For older units without the large round hole work the connector through one of the small round holes in th
13. acscncatsdsncticsscedesacseratesuveinnceaesecsenietcsaeateniencesaesacesauacecaaceannees 14 2 2 11 Install LCD panel and 85662A Bridge board 5 7 VGA Kit ccccccesseceeeeseeceeeeseeeseeeeeess 14 2212 Install LCD Panel 65 VGA KIC ccocccossscnosdesscscneconcasdccancncencans EAER 16 22 13 install LED panel 6 5 XGA KIEJ sssrinin a E aa a aai 16 22 14 Finning instalati O eissien iina E E E AE aaa 16 Er ONS ea N E E A E A E N A 17 3 1 Intensity C OF CP Ol satan acita sceecapneeancegese osc E EE EAEAN a RTRA RN Ea 17 3 2 FOCUS CONT Ol E E E E E E E E E 17 3 3 PET OM este a EE E EAEE A seseese eer ccnsecconesear 17 3 4 PDV ON O CONTO ee E EAE E OEA E EAEE 18 3 5 ECD panelpixel geomet coe teeetacetiestanietieasaa aascaccentneaneodaneneeesiccetneeasenbnssiadessaduceiagusentanasanetesenseoss 18 3 6 EED E E E eas nlaa nies lneentununasequnen ue veceuene 18 3 7 UEa S pe E E A E EE EE E E AE E A E EA E PE A E 18 3 8 Other Onboard Connectors esssssesesssssseresssrrressssrrressserresessereresssrrrsssserressssrereeesssereesseereessene 19 Ad E A E 19 4 1 Zero Span Fast Sweep Vertical ACjUStMENT cccccssecccesseccessccceeececeeeceseneceeeescessencesauecetsueeeeens 19 4 1 1 4 1 2 Equipment Needed Adjustment Procedure 1 Introduction The NewScope 8 Color LCD replacement Kit is designed to replace the monochrome CRT in the HP 85662A spectrum analyzer display The Kit may be equipped with 5 7 6 4 6 5 or 7
14. bezel to the Kit vendor to receive the core charge refund 2 2 6 Remove the XYZ driver boards Optional NOTE If the XYZ output function is no longer needed A1A2 A1A4 and A1A5 boards may be removed from the unit On some later model 85662A units a single board replaces the A1A2 A1A4 and A1A5 boards To retain the XYZ output function no change is required to the above boards 2 2 7 Remove the CRT and high voltage module Warning Potentially Lethal Voltages Present Review the 8566 67 68 service manual for safety guidelines CRT warnings and high voltage power supply warnings before proceeding Remove the A1A3 shielding cage cover In older 85662A units the A1A6 A7 A8 cage cover and the A1C3 capacitor cover may also need to be removed They will be reinstalled later Remove the rear CRT mount 10 2 2 8 Install the NewScope 8 main board Carefully discharge the CRT and high voltage power supply Disconnect and remove the CRT as per the 8566 67 68 service manual Remove the four 6 32 screws securing the A1A3 high voltage power supply and the shielding cage to the mother board Remove the A1A3 high voltage power supply Separate the high voltage power supply from the shielding cage The A1A3 shielding cage can be left loose in the unit with cable clips attached It will be installed later On the top cover of the A3 card cage near the SMB connectors mark the color of the cables for later installation
15. e front and install the grommet Reinstall the A1A3 shielding cage cover Ensure the display link cable and the display board control cable pass in front of the A1A3 cage Engage cards A1A7 and A1A8 into their guide slots if removed Reinstall the A1C3 and A1A6 A7 A8 covers if removed in step 2 2 6 Reconnect all cable clamps that were disconnected from the A1A3 and A1A6 A7 A8 assemblies 2 2 11 Install LCD panel and 85662A Bridge board 5 7 VGA Kit Apply foam strips to four edges on the front side of the LCD panel Remove the protective plastic shipping film from the front of the LCD screen Be careful not to scratch the LCD screen 14 Place the LCD panel assembly face down into the front bezel cavity for the CRT Connect the LCD panel backlight cable to the LCD Panel Connect the Display Link Cable to the Display Board LVDS Adapter mounted on the back of the LCD panel Connect the Power Plug Board Control Cable Display Board Control Cable and LCD Backlight Cable to the 85662A Bridge Board Plug the 85662A Bridge Board to the motherboard A1J1 Connect A1A1W1 to the 14 pin DIP socket on top of the 85662A Bridge Board Re connect the remaining front panel cables to the 85662A by connecting the 50 pin ribbon cable to the keyboard and the remaining 14 pin DIP cable from the keyboard to A3J1 Fit the front bezel back into the front frame Fasten the LCD mounting bracket using M3 flat head Philips screws
16. e utilization D2 serves as FPGA configuration done indicating a successful FPGA configuration 3 7 Jumpers There are four jumpers on the NewScope 8 main board Their usage is explained in Table 3 Table 5 Jumper Settings Position On alternate a Use default eee Ate to section 3 5 as a Lo 18 Return to factory setting Normal operation Used for recovery from unsuccessful firmware update only P17 1 2 LCD image scan direction LCD image scan Change LCD image scan line 1 High direction line 1 Low direction 3 4 LCD image scan direction LCD image scan Some LCD panels require line 2 High direction line 2 Low installing both jumpers to rotate image 180 Other LCD panels require only one jumper If image rotation is desired try both jumpers until display image is satisfactory Jumper installed on the right side Use Digital PWM dimming Jumper installed on the left side Use Analog dimming Dimming type PWM Analog is set at the factory to the LCD panel requirement P17 pin 5 and 6 are reserved for factory use Do not change the factory setting 3 8 Other Onboard Connectors Other onboard connectors such as P10 and P12 are reserved for factory use P12 may be used by advanced users to update firmware and or communicate to the main board Its usage is described in the NewScope 8 Programming Manual 4 Adjustment 4 1 Zero Span Fast Sweep Vertical Adjustment The zero span with sweep speed 10ms or
17. esn t seem to fit take a short break and read the manual one more time Chances are some steps in the manual may not be very clear or well understood Ask questions and we ll get back to you as soon as we can 2 2 2 Prepare the 85662A unit Disconnect AC power cord Remove all cables connecting the 85662A IF section to the 8566 67 68 RF section separate the IF section from the RF section Remove the top and bottom covers from the 85662A 2 2 5 Remove the front panel Refer to the 85662A service manual HP part 85662 90085 section A1A1 for procedures to remove the front panel Remove the plastic trim strip on the top of the unit by inserting a small flat screwdriver into the slot and lifting upwards Remove two screws located under trim strip Remove adhesive trim strips from both sides of instrument Remove two screws located under each trim strip Remove all four screws two on each side Remove two screws from bottom of instrument used to secure front panel to frame Pull front panel forward to separate from the frame Disconnect the two 14 pin DIP ribbon cable connectors from the motherboard sockets Disconnect the 50 pin ribbon cable connector from the top edge of the A1A1 keyboard Front panel is now loose from instrument 2 2 4 Remove the metalized glass window Remove the two small screws from the bottom of the plastic CRT bezel With the front panel assembly on its back so the glass cannot fall out gently pull the
18. in positions in jumper settings table Added kit content table for 6 5 VGA and XGA kits Added section 2 2 1 Read before installation Added LCD assembly removal picture in section 2 2 5 Removed the resistor changes in section 2 2 6 as they are no longer needed Added section 2 2 13 Install LCD panel 6 5 XGA Kit Replaced the 85662A bridge board installation picture in section 2 2 11 Other minor edits to text 21
19. l and trigger level for a stable modulation waveform display Adjust reference level such that the positive peak is within the top division of the graticule AND negative peak is within the bottom division Set the sweep speed back and forth between 10ms and 20ms adjust reference level and modulation depth as needed such that the above condition is met at both sweep speeds Set sweep speed to 20ms press CF step size button The trace color should change to the reference line color orange by default and the active function readout should display CAL START indicating CAL procedure begins Set sweep speed to 10ms press CF step size button The trace color should change back to normal and the active function readout should display CAL OK indicating CAL procedure complete The gain and offset values are calculated automatically and saved in the on board flash memory They are in effect until the next adjustment If the active function readout displays CAL FAIL check the position of the positive and negative peaks on the displayed modulation waveform and repeat the procedure 20 Revision History Revision 1 0 Date 11 3 2014 Notes Initial revision for serial numbers 8001 and above 11 23 2014 Updated kit content table with pre assembly information 3 30 2015 Added section 2 2 12 Install LCD panel 6 5 VGA Kit Added pictures in section 2 2 9 Wire connections on the 85662A main board Updated jumper P17 p
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