Installation Note - Maxim Instruments Corporation
Contents
1. Description Qty Part Number Screw SMM4 0 10 CWPNTX 19 0515 0380 Screw SMM3 0 6 CWPNTX 10 0515 0430 Screw SMM3 5 6 PCFLTX 10 0515 1382 Screw SMM5 0 10 PCFLTX 4 0515 1384 Screw SMM3 0 20 CWPNTX 6 0515 1410 Screw SMM4 0 7 PCFLTX 12 0515 2086 Screw SMM3 5 8 PCPNTX 6 0515 1402 Cable clamp rear frame 1 1400 0017 Tie wrap 6 1400 0249 Actuator clamp CLP CA 15DI 62W 1 1400 0510 Switch guide spring 2 1460 1573 RPG assembly 1 1990 1525 FUSE F5 5A 250V 1 2110 0010 Washer 4 2190 0016 Hex nut 2 2950 0043 Grommet CHANNEL NPR 047W 1 4320 0002 Label 5 amp fuse 1 9320 5885 RPG knob 1 01650 47401 08757 90195 Installation Procedure for the Upgrade Kit The network analyzer must be in proper working condition prior to installing this option Any necessary repairs must be made before proceeding with this installation WARNING The servicing instructions are for use by qualified personnel only To avoid electrical shock do not perform any servicing unless you are qualified to do so Electrostatic Discharge Protection Protection against electrostatic discharge ESD is essential while removing or connecting cables or assemblies within the network analyzer Static electricity can build up on your body and can easily damage sensitive internal circuit elements when discharged Static discharges too small to be felt can cause permanent damage To prevent damage to the instrument e always we2. 08757 90195 Items Included in the Upgrade Kit Table 1 lists the parts included in this upgrade kit Agilent part number 08757 60159 Check the contents of your kit against this list NOTE As you step through the removal portion of this procedure discard all of the old hardware New hardware is provided in the upgrade kit Table 1 Upgrade Kit Contents 08757 60159 Description Qty Part Number Manual set includes service and operating manual 1 08757 90107 Installation note this document 1 08757 90195 Front sub panel sheet metal 1 08757 00071 LCD shield 1 08757 00072 Switch guide 1 08757 40008 Main keypad rubber 1 08757 40017 Power supply cable 1 08757 60071 Display interface board 1 85101 60293 Keypad board 1 08757 60149 LCD assembly 1 08757 60151 Rear panel assembly 1 08757 60153 Front panel overlay Option 012 1 08757 80083 Front panel overlay 8757D Standard 1 08757 80084 Front panel overlay Option 001 1 08757 80085 Front panel overlay Option 002 1 08757 80086 ON OFF overlay 1 08757 80098 Name plate Agilent Technologies 1 08757 80099 EPROM U7 1 08757 80103 EPROM U29 1 08757 80104 Hex nut SMM3 0 6 SSHX 10 0535 0031 Screw SMM3 0 8 CWPNTX 15 0515 0372 Screw SMM3 0 10 CWPNTX 12 0515 0374 Screw SMM3 0 16 CWPNTX 4 0515 0375 08757 90195 Table 1 Upgrade Kit Contents 08757 60159
3. ja67d 08757 90195 13 Step 4 Remove the CRT NOTE Recycle or dispose of the cathode ray tube CRT in accordance with applicable environmental laws Refer to Figure 4 1 1 Remove the connector clip from connector J4 and unplug the large ribbon cable item 2 Disconnect white power cable item from connector J1 on the graphics board and connector J1 on the power supply board Discard the power cable A new power cable with eight conductors is provided in the upgrade kit 3 Disconnect the rear panel ribbon cable item from connector J2 Figure 4 1 CRT Removal Hill ja64d 4 Disconnect the gray CRT ribbon cable item from connector J3 by lifting the graphics board 5 Remove the graphics board 6 Slide the CRT out of the front frame 14 08757 90195 7 Disconnect the white cable item from connector J2 by lifting the CAL MOD driver board CAUTION Mark the log amplifier boards 08757 60087 and the corresponding white board tab so that their placement order is uniquely identified Use a permanent marker It will be necessary to replace each board in their original slot during the installation procedure The instrument s calibration will be invalid if the boards are not replaced in their original positions 8 Remove all of the printed circuit boards from the board cage e CPU orange guide e ADC yellow guide e GPIB blue guide e CAL MOD driver green guide e Log Amplifiers w
4. 23 Refer to Figure 8 3 3 Remove six screws item on the main frame and remove the CRT shield Figure 8 3 CRT Shield Removal side ja610d The removal portion of this procedure is now complete 24 08757 90195 Step 9 Install the LCD Shield NOTE The new parts referenced in the installation procedure are listed in Table 1 Upgrade Kit Contents 08757 60159 on page 4 Refer to Figure 9 1 1 Peel off the adhesive backing and attach the new actuator clamp 1400 0510 onto the new LCD shield 08757 00072 Align the clamp as shown in Figure 9 1 Figure 9 1 Actuator Clamp ja620d 08757 90195 25 Refer to Figure 9 2 2 Insert the new LCD shield into the mainframe The LCD shield fits on top of the rear frame see Figure 12 3 on page 36 3 Line up the holes and insert six screws 0515 0372 e four on the inside of the LCD shield item e two on the bottom side of the LCD shield item Figure 9 2 LCD Shield Installation ja621d 26 08757 90195 Step 10 Install the Front Frame NOTE Observe the top and bottom side of the front frame The top side of the front frame has two different size holes The bottom side holes are one size Refer to Figure 10 1 1 Insert the front frame into the main frame 2 Insert ten screws 0515 2086 into the front frame item e four on each side of the instrument frame e one on the center top of the front frame e one on the center bottom of the
5. do not hold the cover in place but need to be removed e five screws item e two screws item Figure 2 1 Inside Cover Removal ja66d 10 08757 90195 Step 3 Remove the Front Panel Refer to Figure 3 1 1 Turn the instrument over to expose the bottom side of the instrument 2 Disconnect the detector connections J2 J3 J4 and J5 from the motherboard There may be three or four depending on the option configuration Figure 3 1 Detector Connectors ja65d 08757 90195 11 Refer to Figure 3 2 3 4 Turn the instrument over to expose the top side of the instrument Remove the softkey cover item Gently lift the softkey cover off using something such as a flatblade screwdriver Remove the bezel by removing the two screws underneath the softkey cover Remove the two top and bottom frame screws item Remove the two center screws item and tip the front panel partially out of the frame Figure 3 2 Front Panel Removal 12 ja62d 08757 90195 NOTE Option 002 has a gray RF cable that connects the keypad assembly to connector J1 on the CAL MOD driver board green guides Lift the board slightly and use a 15 64 open end wrench to disconnect the cable Refer to Figure 3 3 8 Disconnect the gray ribbon cable item from the motherboard The front panel is now free from the analyzer Figure 3 3 Front Panel Ribbon Cable Removal
6. Installation Note 8757D E CRT to LCD Upgrade Kit Part Number 08757 60159 2 Agilent Technologies Agilent Part Number 08757 90195 Printed in USA June 2003 Copyright 2003 Agilent Technologies Inc All rights reserved Notice THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED AS IS AND IS SUBJECT TO BEING CHANGED WITHOUT NOTICE IN FUTURE EDITIONS FURTHER TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW AGILENT DISCLAIMS ALL WARRANTIES EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY INFORMATION CONTAINED HEREIN INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AGILENT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING USE OR PERFORMANCE OF THIS DOCUMENT OR ANY INFORMATION CONTAINED HEREIN SHOULD AGILENT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT WITH THESE TERMS THE WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL CONTROL Getting Assistance from Agilent By internet phone or fax get assistance with all your test and measurement needs Online assistance www agilent com find assist United States tel 1 800 452 4844 Latin America tel 305 269 7500 fax 305 269 7599 Canada tel 1 877 894 4414 fax 905 282 6495 Europe tel 81 20 547 2323 fax 31 20 547 2390 Au
7. ar a grounded wrist strap having a 1 MQ resistor in series with it when handling components and assemblies e always use a grounded conductive table mat while working on the instrument e always wear a heel strap when working in an area with a conductive floor If you are uncertain about the conductivity of your floor wear a heel strap Figure 1 1 shows a typical ESD protection setup using a grounded mat and wrist strap Refer to Table 2 Required Equipment and Tools on page 8 for part numbers Figure 1 1 ESD Protection Setup NOTE A 3 Wire line power cord with proper connection to ground must be used for ESD protection Anti Static Mat ku310b 6 08757 90195 Overview of the Installation Procedure Remove the outside covers Remove the inside covers Remove the front panel Remove the CRT Remove the rear panel Remove the power supply board Remove the front frame Remove the CRT shield Install the LCD shield oO wan Q a A WO NY e Install the front frame en Install the power supply board m N Install the rear panel assembly Install the keypad board m Ae Oo Install the keypad assembly Install the LCD assembly m ao a Install the display interface board J Final button up m 00 Operator s check m Troubleshooting 08757 90195 Equipment and Tools Required Table 2 Required Equip
8. efer to the documentation that pertains to your instrument for information about static safe workstations and ordering static safe accessories Using an IC extraction tool gently remove EPROM U7 and U29 from their sockets on the CPU board orange guides Insert the new EPROMs listed below Place the notch on the EPROM toward the top of the board Visually confirm that each pin is seated properly in the socket The EPROMs listed below are for firmware revision 7 1 only e U7 08757 80103 e U29 08757 80104 Insert the previously removed printed circuit boards Place the log amplifier boards 08757 60087 with white guides in their correct positions Connect the white cable from the rear panel to connector J2 on the CAL MOD driver board Refer to Figure 4 1 on page 14 If Option 002 connect the gray RF cable from the keypad assembly to connector J1 on the CAL MOD driver board Install the logger cover using two screws 0515 0374 Refer to Figure 2 1 on page 10 Install the outside covers Refer to Figure 1 2 on page 9 6 7 8 9 Install the strap handle using two screws 0515 1384 Refer to Figure 1 2 on page 9 Install the rear feet using four screws 0515 1402 10 Install the top trim strip 11 Remove the serial number label from the old rear panel and place it on the new rear panel NOTE If the serial number label does not adhere properly contact Agilent 44 Technologies Getting Ass
9. front frame 3 Insert six screws 0515 0380 on the LCD shield side of the frame item Figure 10 1 Insert Front Frame ja616d 08757 90195 27 Refer to Figure 10 2 4 Remove the plastic ON OFF button item from the old switch guide and place it on the new switch guide 08757 40008 5 Attach a new spring 1460 1573 to the new switch guide item Pinch the end of the spring closed using needle nose pliers Figure 10 2 Actuator Guide ja618d 28 08757 90195 Refer to Figure 10 3 6 Insert the actuator rod into the switch guide item 7 Insert the actuator rod into the actuator clamp item through the front of the instrument Figure 10 3 Actuator Rod ja622d 8 Turn the instrument over and attach the spring to the LCD shield item Refer to Figure 7 2 on page 21 for more detail 08757 90195 29 Refer to Figure 10 4 9 Place the black actuator extender item on the opposite end of the actuator rod Using needle nose pliers push back on the actuator rod and insert the extender 10 Press the actuator extender several times to ensure that the switch moves freely If necessary use a ftat blade screwdriver to widen the plastic actuator clamp This will loosen the tension on the actuator rod Figure 10 4 Actuator Extender ja613d 30 08757 90195 Step 11 Install the Power Supply Board Refer to Figure 11 1 1 Replace fuse F5 item on the power supply board with t
10. he 5 amp fuse 2110 0010 provided in the kit 2 Place the identifying fuse label 9325 5885 over the 4 amp silk screening item on the board Figure 11 1 Fuse 5 Amp ja634d 08757 90195 31 Refer to Figure 11 2 3 Add a tie wrap 1400 0249 to secure the new white power cable 08757 60071 item The new power cable contains eight conductors 4 Connect the new white power supply cable to connector J1 item on the back side of the power supply board Figure 11 2 Power Supply Board bottom ja631d 32 08757 90195 CAUTION As you are inserting the power supply board carefully align the pins on connector J2 to the connector on the motherboard Refer to Figure 11 3 5 Guide the power cable through the notch opening on the motherboard and insert the power supply board into the instrument 6 Insert two screws 0515 0375 item 7 Insert two screws 0515 0374 item 8 Insert five screws 0515 0372 item 9 Connect the transformer wires See detail in Figure 11 3 for orientation 10 Tighten the connector screws using a flatblade screwdriver 11 Attach the plastic shield to the power supply board Refer to Figure 6 1 on page 18 Figure 11 3 Power Supply Board top Purple Yellow Blank Green Purple Yellow Red Blue Red ja614d 08757 90195 33 Step 12 Install the Rear Panel Assembly Refer to Figure 12 1 1 Place the white cable from the ne
11. her item with a tie wrap 1400 0249 11 Secure the white grey wires and the gray thermal switch wire together with a tie wrap 1400 0249 item 12 Insert four screws 0515 0380 on the top side of the rear panel 36 08757 90195 Step 13 Install the Keypad Board Refer to Figure 13 1 1 Remove the detector interface connector cables item from the old front panel and place them on the new front sub panel 08757 00071 Orient the notch on the black portion of the connectors down and secure the connectors using hex nut 0535 0031 Select the front panel overlay required for your instrument configuration four have been provided Before you remove the adhesive backing place the overlay into position and verify the alignment of the connectors The edge of the overlay should extend evenly beyond the edges of the sub panel If necessary loosen the connector nuts and adjust the connector positions slightly Peel off the adhesive backing carefully align the corners and attach the label to the new front sub panel Rub the label to make sure it adheres securely to the sheet metal Option 002 has an RF connector item on the front panel Remove the RF connector from the old front panel and install it on the new front panel Figure 13 1 Keypad Board 5 ja632d Insert the new RPG assembly 1990 1525 with a washer 2190 0016 onto the new front panel item Orient the cable toward the top of
12. hite guide Refer to caution above 08757 90195 15 Step 5 Remove the Rear Panel Refer to Figure 5 1 1 Turn the instrument over to expose the bottom side of the instrument 2 Disconnect the thermistor switch by removing two screws item 3 Cut the two tie wraps that bundle the blue and red cables and the gray and white gray cables item 4 Disconnect the red and blue fan wires item from connector J3 5 Using needle nose pliers disconnect the five transformer wires and one gray wire from the line module item 6 Using a flat blade screwdriver loosen but do not remove the nine screws on the green connectors and disconnect the eight transformer wires item 6 red blue red yellow green yellow and purple blank purple Figure 5 1 Power Supply Cable Removal ja68d 16 08757 90195 Refer to Figure 5 2 7 Remove the four bottom and two top rear panel screws item and tip the rear panel partially out of the frame 8 Disconnect the large gray ribbon cable item from the motherboard The rear panel is now free from the analyzer Discard the rear panel a new one is provided in the upgrade kit Figure 5 2 Rear Panel Removal ja63d 08757 90195 17 Step 6 Remove the Power Supply Board Refer to Figure 6 1 1 Remove the plastic warning shield on the power supply board Using needle nose pliers pinch and hold the protruding plastic sleeve item while lifting the plastic shie
13. istance from Agilent on page 2 for a replacement serial number label 08757 90195 Step 18 Operator s Check After upgrading your instrument complete the following test to verify its performance 1 Turn the power on 2 Perform the Operator s Check Refer to the Operating Reference 8757D Scalar Network Analyzer 08757 90169 on page A 1 The Operator s Reference is part of the Operating Manual 08757 90109 Step 19 Troubleshooting If there is a possibility that the log amplifier boards white guides were not replaced in their original positions perform the following procedures 1 Perform the Calibration Check Procedure Refer to the Operating and Service Manual for the 11613B Calibrator 11613 90011 Follow the procedure given for the 8757A in Chapter 3 2 If the Calibration Check Procedure fails perform the Calibration Procedure Refer to the Operating and Service Manual for the 11613B Calibrator 11613 90011 Follow the procedure given for the 8757A in Chapter 3 08757 90195 45 46 08757 90195
14. ld off the board Figure 6 1 Plastic Warning Shield ja619d 18 08757 90195 Refer to Figure 6 2 2 Remove the power supply board by removing nine screws item Use the plastic ring item to help lift the board You may encounter resistance as you are removing the board due to the length of the pins on connector J2 Figure 6 2 Power Supply Board top view ja617d 08757 90195 19 Step 7 Remove the Front Frame Refer to Figure 7 1 1 Remove the ON OFF switch plate by removing three screws item 2 Remove the front frame by removing eight screws item four on each side of the instrument frame Figure 7 1 Front Frame ja69d 20 08757 90195 Refer to Figure 7 2 3 Remove the ON OFF switch guide along with the actuator rod by unhooking the spring item using needle nose pliers Once the switch guide is removed pull the actuator rod off of the switch guide Figure 7 2 ON OFF Switch ja615d 08757 90195 21 Step 8 Remove the CRT Shield Refer to Figure 8 1 1 Remove seven screws item on the bottom side of the CRT shield e five attaching the graphics board shield to the CRT shield e two attaching the LCD shield to the motherboard Figure 8 1 CRT Shield Removal bottom ja6t1d 22 08757 90195 Refer to Figure 8 2 2 Remove four screws item on the inside of the CRT shield Figure 8 2 CRT Shield Removal inside ja612d 08757 90195
15. ment and Tools Description Part Number T 10 TORX driver set to 10 in lbs N A T 15 TORX driver set to 21 in lbs N A 15 64 open end wrench N A Hex screwdriver 5 5 mm N A Flatblade screwdriver small N A Needle nose pliers N A ESD grounding wrist strap 9300 1367 5 ft grounding cord for wrist strap 9300 0980 2 x 4 ft conductive table mat and 15 ft grounding wire 9300 0797 ESD heel strap for use with conductive floors 9300 1308 08757 90195 Step 1 Remove the Outside Covers WARNING The opening of covers or removal of parts is likely to expose dangerous voltages Disconnect the product from all voltage sources while it is being opened Refer to Figure 1 2 Disconnect the power cord Remove the strap handle by removing two screws item Remove the four rear panel feet item Loosen the top cover screw item and slide the top cover off Slide the side covers off One side cover has a rear center screw Loosen the bottom cover screw item and slide the bottom cover off No oOo on A WO N e Remove the trim strip item Use a flatblade screwdriver to lift it out of the frame Figure 1 2 Outside Cover Removal ja61d 08757 90195 Step 2 Remove the Inside Covers Refer to Figure 2 1 1 Remove the logger cover by removing two screws item 2 Remove the CRT cover by removing twelve screws e five screws item Two of these screws
16. oard Refer to Detector Connectors on page 11 for a more detailed image If there are only three detector cables leave J4 empty Option 002 has a gray RF connector on the front panel Route this cable into the card cage slot with green guides It will be inserted into the CAL MOD driver board later in this procedure Insert the keypad assembly into the front frame 5 Insert four screws 0515 1382 There are two screws on the top and two on the bottom of the keypad assembly Refer to Figure 3 2 on page 12 Figure 14 1 Keypad Assembly ja627d 08757 90195 39 Step 15 Install the LCD Assembly Refer to Figure 15 1 1 Attach the new Agilent Technologies name plate 08757 80099 item on the front of the new LCD assembly 08757 60151 2 Attach the ON OFF overlay 08757 80098 item Figure 15 1 Front Panel Label eal m DINH Al ja635d 40 08757 90195 Refer to Figure 15 2 3 Connect the small ribbon cable item from the keypad assembly to the LCD assembly CAUTION It is imperative that the correct screws be used to secure the LCD assembly Incorrect screw length may damage the LCD 4 Place the new LCD assembly into the front frame and insert four screws 0515 1382 item There are two screws on the top and two on the bottom of the LCD assembly 5 Press the ON OFF switch several times to ensure that the switch moves freely If necessary adjust the actuat
17. or clamp to loosen the tension on the actuator rod Figure 15 2 LCD Assembly ja628d 08757 90195 41 Step 16 Install the Display Interface Board Refer to Figure 16 1 on page 43 1 42 Place the new display interface board 85101 60293 into the LCD shield and insert eight screws 0515 0430 item Connect the LCD data cable to connector J6 item Open the locking device on connector J7 item by pulling the collar forward and inserting the flat flex cable with the metal conductive traces facing upward Close the locking device on J7 Insert the new rubber grommet 4320 0002 on the LCD shield item Connect the large ribbon cable from motherboard to connector J4 item and secure with the connector clip that was used on the old graphics board Connect the small ribbon cable from the rear panel to connector J2 item Fold the excess ribbon cable and place it into the clip on the rear panel Connect the new white power cable to connector J3 item The new power cable has eight conductors Place the rubber grommet on the power supply cable into the notch on the LCD shield item 08757 90195 Figure 16 1 08757 90195 Display Interface Board ja629d 43 Step 17 Final Button Up CAUTION Electrostatic discharge ESD can damage or destroy electronic components All work on electronic assemblies should be preformed at a static safe workstation R
18. stralia tel 1 800 629 485 fax 61 3 9210 5947 New Zealand tel 0 800 738 378 fax 64 4 495 8950 Japan tel 81 426 56 7832 fax 81 426 56 7840 Singapore tel 1 800 375 8100 fax 65 836 0252 Malaysia tel 1 800 828 848 fax 1 800 801 664 India tel 1 600 11 2929 fax 000 800 650 1101 Hong Kong tel 800 930 871 fax 852 2506 9233 Taiwan tel 0800 047 866 fax 886 2 25456723 Philippines tel 632 8426802 tel PLDT subscriber only 1 800 16510170 fax 632 8426809 fax PLDT subscriber only 1 800 16510288 Thailand tel outside Bangkok 088 226 008 tel within Bangkok 662 661 3999 fax 66 1 661 3714 People s Republic of China tel preferred 800 810 0189 tel alternate 10800 650 0021 fax 10800 650 0121 08757 90195 Description of CRT to LCD Upgrade Kit This upgrade kit replaces the cathode ray tube CRT with a liquid crystal display LCD About the Upgrade Kit Products affected 00 00 000s 8757D and all options 8757E and all options Installation to be performed by Agilent service center personnel qualified by Agilent or customer Estimated installation time 3 hours Estimated verification time 20 minutes If you need assistance contact Agilent Technologies Refer to Getting Assistance from Agilent on page 2 for a list of offices
19. the board Add another washer and a nut 2950 0043 6 Place the new main keypad rubber 08757 40017 onto the new keypad board 08757 60149 08757 90195 37 Refer to Figure 13 1 on page 37 7 Connect the RPG cable to J1 item on the keypad board 8 Pull the RPG cable through the hole on the keypad board and insert the board onto the sub panel Position the RPG cable as shown in Figure 13 1 on page 37 9 Insert 6 screws 0515 0374 item to secure the keypad board to the front sub panel 10 Push each button to ensure it moves freely when depressed Adjust the position of the keypad board if necessary Refer to Figure 13 2 11 Insert the old display interface board 08757 60113 on top of the new keypad board 12 Insert four screws 0515 1410 item to secure the display interface board to the keypad board 13 Insert the ribbon cable from the keypad board into connector J2 item on the interface board 14 Insert the black connectors on the detector cables item into connectors J3 J4 J5 and J6 If there are only three detector cables leave J5 empty 15 Push the new RPG knob 01650 47401 on to the front panel Figure 13 2 Display Interface Board ja633d 38 08757 90195 Step 14 Install the Keypad Assembly Refer to Figure 14 1 1 2 Connect the large gray ribbon cable to connector J1 item on the motherboard Connect the detector interface cables item to the motherb
20. w rear panel assembly 08757 60153 through the rear frame item to the top side of the instrument Route the cable past the transformer It will be inserted into the CAL MOD driver board green guides during the installation procedure 2 Secure the two gray thermal cables together with a tie wrap item 3 Connect the large gray ribbon cable to connector J1 item on the motherboard Figure 12 1 Rear Panel Assembly ja630d 34 08757 90195 Refer to Figure 12 2 4 Connect the transformer wires to the line module using needle nose pliers Figure 12 2 Line Module Wires BLACK RED BLACK YELLOW BLACK GREEN BLACK GRAY Thermal Switch Cable BLACK ORANGE ja623d 08757 90195 35 Refer to Figure 12 3 5 Insert the new rear panel into the frame Be sure all wires are clear of the fan and the frame 6 Insert four screws 0515 0380 item Each will include one of the following e screw only e green white wire e cable clamp 1400 0017 secures the gray fan cable and the green white wire Orient the clamp so that the flat side is toward the bottom of the instrument e black ground wire Figure 12 3 Rear Panel Cables Q ja624d 7 Connect the fan wire blue and red to connector J3 item 8 Connect the thermal switch item using two screws 0515 0372 9 Insert the thermal switch cable into the cable clamp item on the heat sink 10 Secure the blue and red wires toget
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