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Routine Maintenance

5 - 4

Figure 5.2

Removing Fuse Cover

5.2
Replace Fuse

NOTE

The instrument fuse must be replaced with the same type and rating
fuse. Use IEC standard 5x20mm, Type F fuse, 2.5A, 250VAC, 1500A
interrupt rating [Littlefuse #216025].

NOTE

The fuse is located in the power entry module on the back of the
instrument.

CAUTION

IF THE FUSE FAILS REPEATEDLY, IT MAY INDICATE A SERIOUS
PROBLEM WITH THE INSTRUMENT.

1.

Turn off and unplug the
instrument.

2.

Position the instrument to
access the power entry
module on the back of the
instrument.

3.

Remove the power cord.

4.

Insert a very small flat-blade
screwdriver into the notch
on the fuse cover and pry off
the cover as shown in
Figure 5.2.

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Summary of Contents for 20 GENESYS

Page 1: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

Page 2: ...GENESYS 20 SPECTROPHOTOMETER SERVICE MANUAL ...

Page 3: ...GENESYS 20 SPECTROPHOTOMETER SERVICE MANUAL ...

Page 4: ...Copyright 1998 2002 Thermo Spectronic All rights reserved ...

Page 5: ...cts nor shall Thermo Spectronic be liable in any way for its failure to notify purchasers of such changes FCC COMPLIANCE STATEMENT FOR U S A USERS This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the reference guide may cause interference to radio communications It has been tested and found to comply with the limits in effect at ...

Page 6: ...IS WARRANTY IS IN LIEU OF ALL WARRANTIES EXPRESSED IMPLIED OR STATUTORY INCLUDING BUT NOT LIMITED TO WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OR OTHERWISE and states Thermo Spectronic s entire and exclusive liability and the Customer s exclusive remedy for any claim in connection with the sale or furnishing of services goods or parts their design suitability for use instal...

Page 7: ...cement 5 1 5 2 Replace Fuse 5 4 Section 6 Optical Description Section 7 Optical Alignment 7 1 Filter and Lens Assembly Alignment 7 2 7 1 1 Alignment Tool 7 2 7 1 2 Alignment Check 7 2 7 1 3 Alignment Procedure 7 3 Section 8 Electrical Circuit Description and Adjustment 8 1 Primary Wiring 8 1 8 2 Universal Input AC DC Switching Power Supply Board 8 2 8 3 Main Board 8 3 8 3 1 Digital Circuitry 8 3 8...

Page 8: ... 3 Internal Assemblies 9 11 9 3 1 Main Circuit Board 9 11 9 3 2 Power Entry Module 9 13 9 3 3 Power Supply 9 15 9 3 4 Detector Assembly 9 17 9 3 5 Entrance Slit Illumination Assembly 9 17 9 3 5 1 Lamp Socket 9 18 9 3 5 2 Spring 9 19 9 3 6 Filter and Lens Assembly 9 20 9 3 6 1 Filter Wheel 9 21 9 3 6 2 Filter Wheel Motor 9 22 9 4 Limit Switch 9 24 Section 10 Accessories Section 11 Spare Parts and S...

Page 9: ...stallation and Performance Checks Section 4 Troubleshooting Section 5 Routine Maintenance Figure 5 1 Lamp Compartment 5 2 Figure 5 2 Removing Fuse Cover 5 4 Figure 5 3 Remove and Replace Fuses 5 4 Section 6 Optical Description Figure 6 1 Optical Path 6 1 Section 7 Optical Alignment Figure 7 1 Fabricated Alignment Tool 7 2 Section 8 Electrical Circuit Description and Adjustment ...

Page 10: ...ver Assembly 9 6 Figure 9 6 Sample Compartment Cover Hinge Mounting 9 7 Figure 9 7 Connections to Main Board 9 11 Figure 9 8 Main Circuit Board 9 12 Figure 9 9 Interior Layout 9 14 Figure 9 10 Entrance Slit Illumination Assembly 9 19 Figure 9 11 Filter and Lens Assembly 9 21 Figure 9 12 GENESYS 20 Bottom View 9 24 Section 10 Accessories Section 11 Spare Parts and Special Tools Section 12 Drawings ...

Page 11: ...rements within the wavelength range of 325 to 1100 nanometers Its features include Two line 20 character LCD display Tactile keyboard that clicks to indicate a key was pressed Optional cell holders available for a wide range of cuvettes test tubes and longpath cells Optional internal printer Built in RS232 interface Built in Centronics Printer Port ...

Page 12: ...nents Figure 1 1 shows the main components of the instrument indicated by the numerical call outs These are as follows 1 On Off switch on back 2 LCD display 3 Sample compartment door 4 Keyboard 5 Optional built in printer 6 Lamp compartment door ...

Page 13: ...epending on screen generally Escape Back Up or Clear 3 Soft key 2 Function varies depending on screen generally Enter Accept or Continue 4 Scroll keys Used to scroll through menus and enter numeric values 5 Wavelength controls Increase and decrease the wavelength settings 6 0 Abs 100 T Automatically sets the instrument to zero absorbance 100 T 7 A T C Switches between absorbance transmittance and ...

Page 14: ...Description 1 4 8 Utility Accesses instrument set up diagnostics and other functions 9 Print Sends currently displayed data to selected printer ...

Page 15: ... LCD display RS232C port Centronics port Dimensions 12 in W x 13 in D x 7 in H 30 cm W x 33 cm D x 19 cm H Power requirements Selected automatically 100 to 240 Volts 50 to 60 Hz The GENESYS 20 spectrophotometer has been designed to operate under the environmental and electrical requirements listed below Line voltages 100 240V 10 50 60 Hz 10 Operating environment The instrument meets the previous s...

Page 16: ...60 Allow instrument to adjust to room temperature for 24 hours after taking it out of storage Temperature should be maintained at 4EF 2EC Relative humidity should be maintained to 5 Altitude From below sea level to 6562 feet 2000 meters For indoor use only Installation Category II Pollution Degree 2 ...

Page 17: ... 3 Installation and Performance Checks 3 1 The following performance checklist can be copied completed and a copy left with the end user The checklist should be used anytime an instrument is tested or repaired ...

Page 18: ...1 Power up sequence Pass___ Fail ___ 2 Voltages 5v ___ 0 1v 12v ____ 0 6v 12v ____ 0 6v 3 Lamp Voltage 5 7v to 6 1v ________ v 4 Light centered on entrance slit _____ OK 5 Check Image at Detector _____ OK 6 SPECTRONIC Wavelength std 5 0nm _____ OK 7 Photometric Accuracy 10 T 50 T a 10 T filter value 2 0 T _____ OK b 50 T filter value 2 0 T _____ OK 8 SRE a 340nm 0 4 T _____ OK b 400nm 0 4 T _____ ...

Page 19: ...riefly but the instrument is still functional With the second type of error the error message remains and the instrument is not functional until the condition is resolved Flashing Data Display Indicates the sample has an absorbance or transmittance value below or above the photometric range of the instrument The display flashes until the condition is resolved Lamp Failure Indicates the lamp has fa...

Page 20: ...unctional key was pressed For example this message would appear if A T C is pressed when viewing the Utility menu The instrument beeps three times to announce the message the message remains on the display for two seconds then the normal display returns ...

Page 21: ...ages Ground is P3 4 5 5V at P3 2 3 12V at P3 1 12V at P3 6 Turn off power and reconnect to main board Determine if main board is loading the power supply g Check fuse on power supply PC board There is a single fuse on the PC board Test the fuse for continuity This fuse is an F2A 250v In case of failure the power supply must be returned to a Power One Authorized Service Center 2 Main board Check a ...

Page 22: ...ly low voltage setting The monochromator begins to move to the limit switch c The limit switch closes The mono drive reverses to open the switch again d The lamp turns on to the normal power level 6 0 volts The monochromator moves to a position approximately half way between the hard stops A good way to view this is to look at the sector gear on the bottom of the instrument e The second line of th...

Page 23: ...52621 Detector target The following tools are used on the production line and should NOT be used in the field d H 152620 Turning mirror target tool e H 152622 Grating hold down fixture f H 152623 Grating zero order alignment tool g H 152625 Grating mount tool h H 152626 Filter motor pinion spacer i H 152627 Grating motor pinion spacer j H 152630 Optical stop alignment tool k H 152632 Wavelength ca...

Page 24: ...ffset on header Pin 1 not aligned with pin 1 of the header 4 Display is defective Replace Limit switch error 1 Wires connecting limit switch to main board are not connected check both ends of wire assembly 2 Sector gear is not moving therefore not closing limit switch 3 Limit switch is defective Check continuity of switch with an ohm meter A D Error 1 Hardware failure Replace main board Continuous...

Page 25: ...ength table transfer program to download the calibration table Bad Utility Checksum 1 The sum check for the utility area was invalid This problem is self correcting The default values are written to this area immediately after this error occurs 2 EEPROM socket failure The EEPROM may not be contacting the socket properly Either replace the EEPROM socket or the entire main board 3 Hardware failure R...

Page 26: ...start 4 Filter wheel motor is defective Replace filter wheel assembly 5 Detector assembly is defective Replace 6 Make sure filter and mono motor wires do not interfere with the filter wheel Gain Oscillating 1 This occurs when the instrument is unable to set the proper gain during an auto zero The most probable cause is a resistor error on the detector board Replace the detector board Hardware Fail...

Page 27: ... board Invalid uStep Table 1 The stored micro step table has been lost Replace it by using the wavelength table transfer program 2 EEPROM socket failure The EEPROM may not be contacting the socket properly Either replace the socket of the entire main board 3 Hardware failure Replace main board Lamp Failure 1 The tungsten lamp has burned out Replace it 2 Hardware failure Replace main board 3 Make s...

Page 28: ...he chip to the factory ROM Failure 1 Improper EPROM U3 installed Replace EPROM 2 Hardware failure Replace main board Sample too bright 1 Check if sample compartment door is open or ajar 2 Hardware failure Check main board detector board and monochromator position green light at 550nm See Update Information section of manual Sample too dark 1 Check if sample path is blocked 2 Hardware failure Check...

Page 29: ...tc Loss of memory on the internal EEPROM may have been caused by a loose EEPROM chip SOLUTION I Before loading the Wavelength Calibration Tables into the GENESYS 20 instrument please perform the following steps which in some cases may remedy the problem Ensure that the power is shut off and the ac power cord is disconnected from the rear of the GENESYS 20 instrument Lift the small cover rear of th...

Page 30: ...nt Phone FAX number AND Shipping Address OR e mail address III LOADING THE GENESYS 20 WAVELENGTH CALIBRATION TABLE 1 Install the interface cable between the male 9 pin connector on the GENESYS 20 and the computer s Com 1 port using a female 9 pin to female 9 pin straight cable 336042 or a female 9 to female 25 pin cable 336041 2 Power on the GENESYS 20 and the computer 3 Ensure the RS232 setup on ...

Page 31: ...only Loads only the wavelength table to the GENESYS 20 4 Query monochromator table Reads all of the monochromator tables and creates a file on the floppy or hard drive depending on where you are running the MONOTAB EXE file from 8 Press 1 then ENTER to load all monochromator tables to the GENESYS 20 9 If there are no communication problems you will be prompted to enter the filename serial number f...

Page 32: ...Troubleshooting 4 14 ...

Page 33: ...IOR OF THE SPECTROPHOTOMETER FAILURE TO OBSERVE THIS WARNING MAY RESULT IN SERIOUS BURNS INTERRUPTION OF HEART RHYTHM DISRUPTION OF THE NERVOUS SYSTEM OR DEATH 5 1 Lamp Replacement WARNING THE LAMP GETS VERY HOT DURING OPERATION BEFORE REMOVING THE LAMP TURN OFF THE INSTRUMENT AND ALLOW THE LAMP TO COOL DOWN FOR 10 MINUTES FAILURE TO HEED THIS WARNING MAY RESULT IN BURNS 1 Turn off and unplug the ...

Page 34: ...t to remove it from its socket as shown by the arrow Figure 5 1 7 Use a soft lint free cloth to hold the new lamp DO NOT TOUCH THE LAMP WITH YOUR FINGERS 8 Align the two legs protruding from the clean new lamp with the two holes in the socket and press the lamp securely into the socket the legs should fit snugly in the holes 9 Position the lamp holder assembly pressing the spring Item 3 on the rig...

Page 35: ...energy graph as shown below 15 Use a slotted screwdriver to adjust the alignment screw Item 5 until the graph displays its maximum value 16 Press Esc twice to return to the standard display 17 If desired reset the hours of lamp operation to zero refer to the GENESYS 20 Operator s Manual 18 Replace the door of the lamp compartment and allow the lamp to warm up for at least 30 minutes ...

Page 36: ...TE The fuse is located in the power entry module on the back of the instrument CAUTION IF THE FUSE FAILS REPEATEDLY IT MAY INDICATE A SERIOUS PROBLEM WITH THE INSTRUMENT 1 Turn off and unplug the instrument 2 Position the instrument to access the power entry module on the back of the instrument 3 Remove the power cord 4 Insert a very small flat blade screwdriver into the notch on the fuse cover an...

Page 37: ...lder to access the fuses as shown in Figure 5 3 6 Unsnap both fuses to remove them refer to Figure 5 3 Item 1 7 Insert the new fuses pushing them in so they snap into place 8 Replace the fuse cover 9 Replace the power cord 10 Plug the instrument back into the appropriate wall outlet and turn on the power ...

Page 38: ...Routine Maintenance 5 6 ...

Page 39: ...stead the lamp is mounted very close to the entrance slit Stop An optical stop reduces the amount of stray light in the instrument Turning Mirror The turning mirror directs the diverging beam to the main mirror Main Mirror The main mirror converts the diverging beam to parallel light and directs it to the grating Grating The planar grating whose orientation is controlled by a micro stepping motor ...

Page 40: ...the beam leaving the exit slit to a focus at the center of the sample location Detector The light is transmitted through the sample and lands on the detector The detector is angled to prevent light reflection back into the sample compartment area ...

Page 41: ...HAT LIVE POWER EXISTS AT VARIOUS POINTS ON THE INTERNAL COMPONENTS FAILURE TO OBSERVE THIS WARNING MAY RESULT IN SERIOUS BURNS INTERRUPTION OF HEART RHYTHM DISRUPTION OF THE NERVOUS SYSTEM OR DEATH WARNING WHEN IN OPERATION CERTAIN INTERNAL COMPONENTS SUCH AS THE LAMP AND THE HEAT SINK ON THE MAIN CIRCUIT BOARD BECOME HOT AVOID TOUCHING THESE AREAS FAILURE TO OBSERVE THIS WARNING MAY RESULT IN BUR...

Page 42: ...he filter wheel assembly is replaced Refer to Section 9 Disassembly and Replacement for instructions on replacing the filter and lens assembly 7 1 1 Alignment Tool Alignment of the filter and lens assembly requires an alignment tool Spectronic instruments has a commercially available alignment tool part number H 152378 However an alignment tool can also be easily fabricated for use in the alignmen...

Page 43: ...ator cover refer to Section 9 Disassembly and Replacement 3 Slightly loosen the screw securing the filter and lens assembly The assembly must not be loose enough to rock or loose position but it must be moveable 4 Connect the cables for the power supply limit switch monochromator motor and lamp to the main circuit board Do not connect the cable for the filter wheel motor The detector cable can be ...

Page 44: ... WARNING MAY RESULT IN SERIOUS BURNS INTERRUPTION OF HEART RHYTHM DISRUPTION OF THE NERVOUS SYSTEM OR DEATH 7 Insert the power cord and turn on power to the assembly 8 Turn the filter wheel so the light passes through a blank position 9 Look straight down into the sample cuvette and observe the position of the visible red dot relative to the vertical center line Move the filter and lens assembly u...

Page 45: ...itable for input to the universal input AC DC switching power supply 4001 653 High frequency noise disturbances on the Ground and Mains are filtered by torroidal ferrites and additional circuitry on the AC DC switching power supply board The AC DC switching supply 4001 653 powers the instrument through a cable to the Main Board 4001 6044 All other electrical peripherals and boards are connected to...

Page 46: ...ad and over temperature protection is built in All outputs will be disabled when any one output has a fault for as long as the fault exists A replaceable AC line fuse is also located on the board Specifications for the current model Mfg Model Power One MAP40 3000 AC input voltage range 90 264 Volts AC AC input frequency range 50 60 Hertz Minimum Output Power 40 Watts Output Voltages Currents 5 Vol...

Page 47: ...and 64Kx8 bit EPROM U2 are not exercised A 2Kx8 bit EEPROM U4 is used to store utility parameters and the monochromator motor step to wavelength lookup table Other sizes up to 32Kx8 bit are supported by the hardware Address Latch Chip Selects and I O Decoding The 80C251 uses a 16 bit address bus whose upper byte is multiplexed with an 8 bit data bus by storing the address on the U5 latch with the ...

Page 48: ...age divided down by the U40 R32 R23 amplifier to provide a 16 6 mV offset adjustment to the photometric signal The voltage adjustment is chosen so zero volts is presented to the A D converter within lsb 65 Fvolts when no light passes through the sample compartment This provides a true dark or 0 T reading by correcting for leakage currents and op amp offset voltages and bias currents Any dark volta...

Page 49: ... the data for the display All drivers are located on the display itself The Keyboard The ten keyboard keys are arranged in a matrix of rows and columns A key press electrically connects the row and column of that key U20 sends a test pattern with one LOW bit to the columns and U19 is used to read back data from the rows A LOW bit received back indicates a key pressed at the intersection of the col...

Page 50: ...nector J3 U8 provides voltage level translation from 5 volts and ground to 12 volts Direct I O control lines are used for all signals because of the timing critical nature of the communications protocol Two data lines TXD RXD are used and two control lines RTS CTS are available for hardware handshaking if enabled by the software Baud rates are software selectable over the range of 300 19200 Baud A...

Page 51: ...nd node the same voltage drop occurs across the 1 50K ohm resistor and the 0 47 ohm resistor thus causing a current amplification of 1500 0 47 3191 The current supplied to the summing junction and the amplified current both flow through the motor coil turning it on The complementary output of the D A in this case will require less than 250 FAmps and will cause the extra current from the 20 0K ohm ...

Page 52: ...ed photocurrent The op amp used is chopper stabilized which reduces its own offset voltage to a few Fvolts by storing the actual op amp offset voltage on capacitors C5 and C6 during one cycle and using the caps to cancel the offset voltage during the next cycle This chopping action occurs at a rate of roughly 450 Hz The op amp employs a JFET input stage to provide low input bias currents in the pi...

Page 53: ... THE UNIT IS OPENED FOR SERVICING AVOID TOUCHING THESE AREAS FAILURE TO OBSERVE THIS WARNING MAY RESULT IN BURNS CAUTION CIRCUIT BOARDS AND OTHER ELECTRONIC COMPONENTS ARE SUBJECT TO DAMAGE FROM ELECTROSTATIC DISCHARGE TO PREVENT SUCH DAMAGE USE A WRIST OR HEEL GROUNDING STRAP GROUND TOOLS THROUGH A CONDUCTIVE MAT BEFORE TOUCHING ANY POTENTIALLY STATIC SENSITIVE ASSEMBLIES OR DEVICES WHEN HANDLING...

Page 54: ...n access to the light but it will not stay attached when the main cover is removed REMOVAL 1 Using a coin or large blade screwdriver turn the quarter turn fastener counterclockwise to release the cover 2 Pull out on the fastener to free the top of the lamp door assembly and remove the door from the cutout in the cover assembly REPLACEMENT 3 Carefully set the bottom of the lamp door assembly into t...

Page 55: ...r out of the printer 2 Grasp the lower back edge of the printer cover and pull up to remove the printer cover REPLACEMENT 3 Insert the front of the printer cover into the front of the cutout in the cover assembly 4 Carefully push the printer cover into position Press firmly until it snaps into the cutout 5 Replace paper 9 1 3 Cover Assembly REMOVAL 1 Remove any sample holders which may be installe...

Page 56: ...HE WIRES CONNECTING THE KEYPAD AND DISPLAY TO THE MAIN CIRCUIT BOARD FAILURE TO OBSERVE THIS CAUTION MAY RESULT IN DAMAGE TO THE WIRING HARNESS 5 Carefully lift the front of the cover assembly so the upper rear portion of the cover moves away from the connectors on the edge of the main circuit board 6 Carefully lift the cover assembly to free the back of the assembly from the two screws located at...

Page 57: ...ard refer to Figure 9 4 9 7 REPLACEMENT 9 Attach the cable for the display to the connector on the main board Make sure Pin 1 of the cable is lined up with Pin 1 of the connector Pin 1 of the cable is indicated by the red stripe on the edge of the cable Pin 1 of the connector is indicated by an arrow in Figure 9 4 9 7 10 Attach the cable for the key pad to the connector on the main board The conne...

Page 58: ...f the cover assembly down until the locking clips snap into place 14 Tighten the two screws on the back of the base assembly 15 If the optional printer is present install the printer and thread the paper into the printer 16 Plug the power cord into the connector on the back of the unit 9 1 4 Sample Compartment Cover Assembly NOTE If the sample compartment cover is to be separated from the hinge wi...

Page 59: ...move the hinge assembly from the main cover assembly a One at a time press each hinge pin out of its mounting hole so it catches on the outside of the plastic and does not return to the hole b Slide the hinge away from the main cover assembly REPLACEMENT 4 Carefully slide the hinge into position on the cover assembly until the hinge pins lock into their locating holes 5 Carefully slide the sample ...

Page 60: ... panel is clear of the connectors on the back edge of the board 4 Lift up on the rear panel to remove it from the base assembly REPLACEMENT 5 Set the rear panel into position in the base assembly Make sure it is oriented so the paper holder slots are located beneath the printer assembly and on the outside of the unit 6 Insert the two screws through the base assembly outer casing and the rear panel...

Page 61: ...ary to pull hard on the display and possibly pry it away as it tends to be held in place by the adhesive of the key pad REPLACEMENT 5 Make sure the cover screen is clean of all dust and finger prints 6 Locate the UP arrow on the back of the display and align it toward the back top of the cover assembly The cable harness will be on the side of the display closest to the side of the cover 7 Replace ...

Page 62: ...OSITION AND CANNOT BE EASILY REPOSITIONED WITHOUT CAUSING THE KEYPAD TO BE DAMAGED OR NOT ADHERE PROPERLY 6 Carefully strip the cover paper off the adhesive on the back of the key pad 7 Carefully align the key pad to the depression in the cover assembly without actually touching the key pad to the cover Make sure the wire harness is fully pushed through the hole in the cover 8 Touch one edge to th...

Page 63: ...e cover assembly removed so there is full access to the circuit board 1 Remove the main cover assembly refer to Section 9 1 3 Cover Assembly CAUTION WHEN REMOVING CONNECTORS FROM THE CIRCUIT BOARD RECEPTACLES ALWAYS GRASP THE BODY OF THE CONNECTOR NEVER PULL ON THE WIRE HARNESS FAILURE TO OBSERVE THIS CAUTION MAY RESULT IN DAMAGE TO THE WIRING HARNESS 2 Carefully remove the connectors for all cabl...

Page 64: ...lso secure the monochromator cover 4 Carefully lift the circuit board off the base assembly REPLACEMENT 5 The EEPROM contains the calibration constants for the monochromator and other instrument parameters This information is specific to a specific instrument and must be maintained with the instrument If the circuit board is being replaced with a new board the EEPROM must be transferred to the new...

Page 65: ...he socket 6 Make sure screw holes in the monochromator cover are lined up with the nuts in the lugs 7 Carefully place the circuit board on top of the monochromator cover Slide it into the slots on the rear panel aligning the back connectors with the slots in the rear panel 8 Move the board and rear panel so the front holes in the circuit board line up with the nuts in the lugs 9 Insert the two scr...

Page 66: ...module out of its cutout Step 6 before the wires are removed to make it easier to grasp the connectors with pliers Take care not to jerk the module too hard when removing each wire or the remaining connected wires may be damaged 4 Remove the ground connector green and yellow wire from the upper right terminal of the power entry module as viewed from the rear ...

Page 67: ...ry module as viewed from the rear 9 Connect the two power connector wires white wires to the upper and lower terminals on the right side of the power entry module as viewed from the rear The two wires are interchangeable Either wire can be connected to either of the two terminals The two middle terminals are not used 10 Replace the rear panel refer to Section 9 1 5 Rear Panel 11 Replace the main c...

Page 68: ...placed with a new one transfer the power supply cable assembly from the old power supply to the new power supply Maintain the same wire harness polarity 8 Place the power supply in position over the four mounting lugs Locate the grounding wire of the power supply cable assembly between the power supply and the right front lug 9 Insert and tighten the four screws to secure the power supply to the b...

Page 69: ...he board will fall out of the assembly REPLACEMENT 5 Align the detector assembly with the mounting holes and replace the screws DO NOT OVER TIGHTEN 6 Replace the foil shield 7 Replace the main cover assembly refer to Section 9 1 3 Cover Assembly 9 3 5 Entrance Slit Illumination Assembly REMOVAL 1 Remove the main cover assembly refer to Section 9 1 3 Cover Assembly 2 Remove the main circuit board r...

Page 70: ...sitioned 10 Replace the main circuit board refer to Section 9 3 1 Main Circuit Board 11 Replace the main cover assembly refer to Section 9 1 3 Cover Assembly 9 3 5 1 Lamp Socket NOTE The lamp socket can be removed from the entrance slit illumination assembly after the assembly is removed from the base assembly However it can also be removed without removing the entire assembly REMOVAL 1 Remove the...

Page 71: ...o Section 9 1 3 Cover Assembly 9 3 5 2 Spring REMOVAL 1 Remove the main cover assembly refer to Section 9 1 3 Cover Assembly 2 Disconnect the lamp cable from the main circuit board 3 Remove the lamp socket refer to Section 9 3 5 1 Lamp Socket 4 Pull the spring out of its mounting hole This may require some force 5 Clean out as much of the old RTV adhesive as possible REPLACEMENT 6 Apply RTV adhesi...

Page 72: ...TER ELEMENTS FAILURE TO OBSERVE THIS CAUTION MAY LEAD TO INACCURACY AND LOSS OF PERFORMANCE 4 Remove the single center screw holding the filter wheel assembly in position and raise the assembly REPLACEMENT 5 Set the filter wheel assembly in position on the two pins 6 Insert the holding screw and tighten until the assembly cannot rock but can still be moved from end to end of the slots 7 Align the ...

Page 73: ...ter wheel and clean the Teflon washer REPLACEMENT 4 Replace the filter wheel on its mounting pin with the hub down making sure the gear teeth of the filter wheel mesh properly with the gear teeth of the motor pinion The filter wheel can only be positioned one way on the lug 5 Place the Teflon washer on the mounting pin above the filter washer CAUTION NEVER REUSE A RETAINING RING ONCE IT HAS BEEN R...

Page 74: ...osition the filter wheel motor so the wires are on the side toward the filter wheel 5 Mount the motor with the two thread forming screws DO NOT OVER TIGHTEN 6 Replace the filter wheel refer to Section 9 3 6 1 Filter Wheel 7 Check the filter wheel and motor alignment a Hold the pinion and attempt to move the filter wheel b If there is any play loosen either mounting screw for the motor and move the...

Page 75: ...ch secure the limit switch 5 Remove the two wires attached to the limit switch terminals REPLACEMENT 6 Attach the two wires to the limit switch 7 Locate the limit switch in position Make sure the wires are routed under the switch and spring The tie wrap on the wires must be trapped under the locking notch as indicated in Figure 9 12 after the wire is fed through the hole in the base assembly ...

Page 76: ...Disassembly and Replacement 9 24 8 Replace the two screws 9 Replace the two screws which secure the limit switch 10 Turn the unit back over to its upright position ...

Page 77: ...2 5mm wide 4014 COD Vial Cell Holder holds one COD vial up to 104mm tall and 18mm in diameter 4015 1 Test Tube Holder holds one 1 pathlength test tube up to 104 mm tall 4028 Filter Holder holds one filter lens up to 8mm thick with dimensions up to 44mm W x 104mm H 4088 20 Column Internal Printer user installable includes 5 rolls of paper 333150 SPECTRONIC Standards 336041 Interface cable to connec...

Page 78: ...Accessories 10 2 ...

Page 79: ... SPS 4001 250 Holder GENESYS 20 Lamp SPS 4001 251 Motor GENESYS 20 Grating SPS 4001 252 Fan GENESYS 20 SPS 4001 253 Cable GENESYS 20 Mono Motor Power SPS 4001 254 Cable GENESYS 20 Mono Motor Control SPS 4001 255 Cable GENESYS 20 Detector SPS 4001 256 Cable GENESYS 20 Power Supply SPS 4001 260 Motor GENESYS 20 Filter SPS 4001 261 Cable GENESYS 20 Limit Switch SPS 4001 262 Power Entry Cable Assembly...

Page 80: ...e used on the production line and should not be used in the field list provided as reference only H152620 Turning mirror target tool H152622 Grating hold down fixture H152623 Grating zero order alignment tool H152625 Grating mount tool H152627 Grating motor pinion spacer H152630 Optical stop alignment tool H152632 Wavelength calibration tool H152634 Main mirror cementing tool ...

Page 81: ...rol Cable Assembly 4001 254 E 3 12 7 Detector Cable Assembly 4001 255 E 3 12 8 Power Supply Cable Assembly 4001 256 E 3 12 9 Limit Switch Cable Assembly 4001 261 E 3 12 10 Power Entry Cable Assembly 4001 262 E 3 12 11 Filter Assembly 4001 263 E 4 12 12 Filter and Lens Assembly 4001 264 E 4 12 13 Turning Mirror Assembly 4001 265 E 4 12 14 Grating and Mount Assembly 4001 266 E 4 12 15 Cuvette Adapte...

Page 82: ...er Wheel T O Y Lamp Cntrl 4001 6021 A 6 12 43 Analog Processing 4001 6021 A 7 12 44 A D 4001 6021 A 8 12 45 Lamp Power Supply 4001 6021 A 9 12 46 Internal Printer Interface 4001 6021 A 10 12 47 External Printer Interface 4001 6021 A 11 12 48 RS 232 Interface 4001 6021 A 12 12 49 Accessory Module Interface 4001 6021 A 13 12 50 Board Power Supply 4001 6021 A 14 12 51 Processor 4001 6041 B 1 12 52 Me...

Page 83: ...Drawings and Schematics 12 3 FIG ASSEMBLY DESCRIPTION PART NO REV SHTS ACCESSORIES 12 65 Printer Relay Cable 4001 1601 B 1 12 66 Printer Cable 4001 1604 B 1 12 67 Printer Assembly 4001 200 A 1 ...

Page 84: ...Drawings and Schematics 12 4 Figure 12 1 Lamp Socket Assembly 4001 250 Rev E Figure 12 2 Filter Motor Assembly 336001 671 Rev E ...

Page 85: ...Drawings and Schematics 12 5 Figure 12 3 Grating Motor Assembly 4001 251 Rev E Figure 12 4 Fan Assembly 4001 252 Rev C See Update Information section of manual ...

Page 86: ...Drawings and Schematics 12 6 Figure 12 5 Mono Motor Power Cable Assembly 4001 253 Rev E ...

Page 87: ...Drawings and Schematics 12 7 Figure 12 6 Mono Motor Control Cable Assembly 4001 254 Rev E Figure 12 7 Detector Cable Assembly 4001 255 Rev E ...

Page 88: ...Drawings and Schematics 12 8 Figure 12 8 Power Supply Cable Assembly 4001 256 Rev E ...

Page 89: ...Drawings and Schematics 12 9 Figure 12 9 Limit Switch Cable Assembly 4001 261 Rev E ...

Page 90: ...Drawings and Schematics 12 10 Figure 12 10 Power Entry Cable Assembly 4001 262 Rev E Figure 12 11 Filter Assembly 4001 263 Rev E ...

Page 91: ...Drawings and Schematics 12 11 Figure 12 12 Filter Lens Assembly 4001 264 Rev G ...

Page 92: ...Drawings and Schematics 12 12 Figure 12 13 Turning Mirror Assembly 4001 265 Rev E ...

Page 93: ...Drawings and Schematics 12 13 Figure 12 14 Grating Mount Assembly 4001 266 Rev E ...

Page 94: ...Drawings and Schematics 12 14 Figure 12 15 Cuvette Adapter Assembly 4010 000 Rev E Figure 12 16 Lamp Knob Assembly 4001 267 Rev E ...

Page 95: ...Drawings and Schematics 12 15 Figure 12 17 Entrance Slit Illumination Assembly 4001 268 Rev E ...

Page 96: ...Drawings and Schematics 12 16 Figure 12 18 Display Assembly 4001 269 Rev E ...

Page 97: ...Drawings and Schematics 12 17 Figure 12 19 Detector Assembly 4001 270 Rev E ...

Page 98: ...Drawings and Schematics 12 18 Figure 12 20 Main Cover Assembly 4001 271 Rev D ...

Page 99: ...Drawings and Schematics 12 19 Figure 12 21 Lamp Door Assembly 4001 272 Rev D ...

Page 100: ...Drawings and Schematics 12 20 Figure 12 22 Main Board 4001 6046 Rev K Figure 12 23 Mono Motor Board 4001 6056 Rev K ...

Page 101: ...Drawings and Schematics 12 25 Figure 12 26 Interface Cable IBM PC XT 336041 1602 Sht 1 Rev A ...

Page 102: ...Drawings and Schematics 12 26 Figure 12 27 Interface Cable IBM PC AT 335942 000 Sht 1 Rev A ...

Page 103: ...Drawings and Schematics 12 27 Figure 12 28 Interface Cable Non IBM 336043 000 Sht 1 Rev A ...

Page 104: ...Drawings and Schematics 12 28 ...

Page 105: ...9 S A C1 1 Mfd 50V Cerm C10 S A C1 1 Mfd 50V Cerm C11 Not Presently Used C12 Not Presently Used C13 Capacitor Cerm 27 Pf 27V C14 S A C13 27 Pf 27V Cerm C15 S A C1 1 Mfd 50V Cerm C16 Capacitor Tant 1 Mfd 20V C17 Capacitor Elect 470 Mfd 35V C18 S A C17 470 Mfd 35V Tant C19 S A C1 1 Mfd 50V Cerm C20 Capacitor Cerm 22 Mfd 50V C21 S A C6 47 Mfd 20V Tant C22 S A C3 10 Mfd 20V Tant C23 S A C2 4 7 Mfd 10V...

Page 106: ...D4 S A D1 1N914 D5 Zener Diode 1N4693A D6 Schottky Diode 1N5822 D7 Diode 1N4001 D8 S A D7 1N4001 D9 S A D7 1N4001 D10 Not Presently Used D11 S A D1 1N914 D12 S A D7 1N4001 D13 S A D7 1N4001 D14 S A D7 1N4001 D15 S A D7 1N4001 D16 S A D1 1N914 D17 S A D1 1N914 D18 S A D7 1N4001 J1 Wafer Metric Polarized Dual Row 24 Pin Molex 87331 2420 J2 Connector 25 Pin Female D Sub Holmberg H2R25RA29BS J3 Connec...

Page 107: ... Bead 68 Ohm L2 Inductor 100 uH Q1 Transistor 2N3904 Q2 Transistor MPSA64 R1 Potentiometer 20 K Bourns 3386P series R2 Resistor CF 47 K 5 1 4W R3 Resistor CF 470 Ohm 5 1 4W R4 Resistor CF 10 K 5 1 4W R5 S A R3 470 Ohm 5 1 4W CF R6 S A R3 470 Ohm 5 1 4W CF R7 Not Presently Used R8 Resistor MF 1 10 K 1 1 4W R9 Resistor MF 18 2 K 1 1 4W R10 Resistor MF 15 4 K 1 1 4W R11 S A R4 10 K 5 1 4W CF R12 Resi...

Page 108: ...33 S A R19 4 99 K 1 1 4W MF R34 S A R19 4 99 K 1 1 4W MF R35 S A R29 2 49 K 1 1 4W MF R36 S A R2 47 K 5 1 4W CF R37 S A R4 10 K 5 1 4W CF U1 Not Presently Used U2 Not Presently Used U3 Programmed AM27C512 U4 IC X28C16 U5 IC 74HC373 U6 IC 74HC244 U7 IC 74HC00 U8 IC MC145406 U9 IC 74HC374 U10 S A U9 74HC374 U11 IC 74HC257 U12 IC DS1233D 10 U13 IC 74HC08 U14 IC 74HC138 U15 IC 74HC240 U16 S A U9 74HC3...

Page 109: ... MC14053 U44 IC DAC08 W1 Copper Connection on Board W2 Copper Connection on Board W3 Copper Connection on Board W4 Copper Connection on Board W5 Copper Connection on Board W6 Not Presently Used W7 Not Presently Used W8 Not Presently Used W9 Copper Connection on Board XBT1 Not Presently Used XU1 Not Presently Used XU2 Not Presently Used XU3 IC Socket 28 Pin ZIF XU4 IC Socket 28 Pin XU22 IC Socket 4...

Page 110: ... Schematics 12 34 Ref Des Description Z4 Resistor Netwk Com 10 K SIP 9 Z5 S A Z4 10 K SIP Netwk Z6 S A Z2 470 Ohm DIP Netwk Z7 S A Z2 470 Ohm DIP Netwk Z8 S A Z4 10 K SIP Netwk Z9 Resistor Netwk Precision 1 0K 9 0K ...

Page 111: ...d C12 Not Presently Used C13 Capacitor Cerm 27 Pf 27V C14 S A C13 27 Pf 27V Cerm C15 S A C1 1 Mfd 50V Cerm C16 Capacitor Tant 1 Mfd 20V C17 Capacitor Elect 470 Mfd 35V C18 S A C17 470 Mfd 35V Tant C19 S A C1 1 Mfd 50V Cerm C20 Capacitor Cerm 22 Mfd 50V C21 S A C6 47 Mfd 20V Tant C22 Capacitor Tant 10 Mfd 20V C23 S A C2 4 7 Mfd 10V Tant C24 S A C22 10 Mfd 20V Tant C25 S A C22 10 Mfd 20V Tant C26 S ...

Page 112: ...ot Presently Used D3 Diode LM336Z 2 5V D5 Zener Diode 1N4693A D6 Schottky Diode 1N5822 D7 Diode 1N4001 D8 S A D7 1N4001 D9 S A D7 1N4001 D11 S A D1 1N914 D16 S A D1 1N914 D17 S A D1 1N914 D18 S A D7 1N4001 J1 Wafer Metric Polarized Dual Row 24 Pin Molex 87331 2420 J2 Connector 25 Pin Female D Sub Holmberg H2R25RA29BS J3 Connector 9 Pin Male D Sub Holmberg H2M09RA29BS J4 Not Presently Used J5 Wafer...

Page 113: ...1 L1 Ferrite Bead 68 Ohm L2 Inductor 100 uH Q1 Transistor 2N3904 Q2 Transistor MPSA64 R1 Potentiometer 20 K Bourns 3386P series R2 Resistor CF 47 K 5 1 4W R3 Resistor CF 470 Ohm 5 1 4W R4 Resistor CF 10 K 5 1 4W R5 S A R3 470 Ohm 5 1 4W CF R6 S A R3 470 Ohm 5 1 4W CF R7 Not Presently Used R8 Resistor MF 1 10 K 1 1 4W R9 Resistor MF 18 2 K 1 1 4W R10 Resistor MF 49 9 K 1 1 4W R11 S A R4 10 K 5 1 4W...

Page 114: ...33 S A R19 4 99 K 1 1 4W MF R34 S A R19 4 99 K 1 1 4W MF R35 S A R29 2 49 K 1 1 4W MF R36 S A R2 47 K 5 1 4W CF R37 S A R4 10 K 5 1 4W CF R38 Not Presently Used R39 S A R25 1 00 K 1 1 4W MF R40 Resistor MF 274 0 K 1 1 4W U1 Not Presently Used U2 Not Presently Used U3 Programmed TMS 27C512 U4 IC X28C16 U5 IC 74HC373 U6 IC 74HC244 U7 IC 74HC00 U8 IC MC145406 U9 IC 74HC374 U10 S A U9 74HC374 U11 IC 7...

Page 115: ...72P U42 IC MC1404U5 REF 02 U43 IC CD4053 MC14053 U44 IC DAC08 W1 Copper Connection on Board W3 Copper Connection on Board W4 Copper Connection on Board W5 Copper Connection on Board W6 Not Presently Used W7 Not Presently Used W8 Not Presently Used W9 Copper Connection on Board XBT1 Not Presently Used XU1 Not Presently Used XU2 Not Presently Used XU3 IC Socket 28 Pin ZIF XU4 IC Socket 28 Pin XU22 I...

Page 116: ... 44 Ref Des Description Z3 S A Z2 470 Ohm DIP Netwk Z4 Resistor Netwk Com 10 K SIP 9 Z5 S A Z4 10 K SIP Netwk Z6 S A Z2 470 Ohm DIP Netwk Z7 S A Z2 470 Ohm DIP Netwk Z8 S A Z4 10 K SIP Netwk Z9 Resistor Netwk Precision 1 0K 9 0K ...

Page 117: ... 10 Mfd 20V C7 S A C1 1 Mfd 50V Cerm C8 S A C6 10 Mfd 20V Tant C9 S A C6 10 Mfd 20V Tant C10 S A C1 1 Mfd 50V Cerm C11 S A C1 1 Mfd 50V Cerm C12 S A C1 1 Mfd 50V Cerm C13 S A C1 1 Mfd 50V Cerm C14 S A C1 1 Mfd 50V Cerm C15 S A C1 1 Mfd 50V Cerm D1 Diode 1N914 D2 Diode 1N4001 D3 S A D1 1N914 D4 S A D2 1N4001 D5 S A D1 1N914 D6 S A D2 1N4001 D7 S A D1 1N914 D8 S A D2 1N4001 J1 Connector 6 Pin Polari...

Page 118: ... 5 1 4W CF R9 S A R6 1 50 K 1 1 4W MF R10 S A R7 0 47 Ohm 5 1 2W Power R11 S A R1 10 0 K 1 1 4W MF R12 S A R1 10 0 K 1 1 4W MF R13 S A R3 20 0 K 1 1 4W MF R14 S A R3 20 0 K 1 1 4W MF R15 S A R5 1K 5 1 4W CF R16 S A R6 1 50 K 1 1 4W MF R17 S A R7 0 47 Ohm 5 1 2W Power R18 S A R5 1K 5 1 4W CF R19 S A R6 1 50 K 1 1 4W MF R20 S A R7 0 47 Ohm 5 1 2W Power R21 Resistor CF 100 Ohm 5 1 4W R22 S A R21 100 ...

Page 119: ...Drawings and Schematics 12 115 Figure 12 29 Printer Relay Cable ...

Page 120: ...Drawings and Schematics 12 116 Figure 12 30 Printer Cable ...

Page 121: ...Drawings and Schematics 12 117 Figure 12 31 Printer Assembly ...

Page 122: ...Drawings and Schematics 12 118 ...

Page 123: ...Drawings and Schematics 12 21 Figure 12 24 Base Assembly 4001 200 Sht 7 Rev C ...

Page 124: ...Drawings and Schematics 12 22 ...

Page 125: ...Drawings and Schematics 12 23 Figure 12 25 Main Assembly 4001 200 Sht 8 Rev C ...

Page 126: ...Drawings and Schematics 12 24 ...

Page 127: ...Drawings and Schematics 12 35 Figure 12 29 Main Board Assembly 4001 6024 Rev A ...

Page 128: ...Drawings and Schematics 12 36 ...

Page 129: ...Cerm C6 S A C1 1 Mfd 50V Cerm C7 Capacitor Tant 10 Mfd 20V D1 To be Mounted at a Later Assembly Operation J1 Connector Polarized 7 Pin KK100 Molex 22 23 2071 R1 Resistor MF 1 00 M 1 1 4W R2 S A R1 1 00 M 1 1 4W MF R3 Resistor MF 60 4 Ohm 1 1 4W R4 Resistor MF 78 7 Ohm 1 1 4W R5 Resistor MF 182 Ohm 1 1 4W R6 Resistor MF 412 Ohm 1 1 4W R7 Resistor MF 1 00 K 1 1 4W R8 Resistor MF 953 Ohm 1 1 4W R9 Re...

Page 130: ...Drawings and Schematics 12 38 ...

Page 131: ...Drawings and Schematics 12 45 Figure 12 31 Main Board Assembly 4001 6044 Rev B ...

Page 132: ...Drawings and Schematics 12 46 ...

Page 133: ...Drawings and Schematics 12 49 Figure 12 32 Mono Driver Board Assembly 4001 6054 Rev A ...

Page 134: ...Drawings and Schematics 12 50 ...

Page 135: ...Drawings and Schematics 12 51 Figure 12 33 Primary Wiring Schematic 4001 600 Rev B ...

Page 136: ...Drawings and Schematics 12 52 ...

Page 137: ...Drawings and Schematics 12 53 Figure 12 34 Detector Preamp Board Schematic 4001 6031 Rev B ...

Page 138: ...Drawings and Schematics 12 54 ...

Page 139: ...Drawings and Schematics 12 55 Figure 12 35 Mono Drive Board Schematic 4001 605 1 Sht 1 ...

Page 140: ...Drawings and Schematics 12 56 ...

Page 141: ...Drawings and Schematics 12 57 Figure 12 36 Mono Drive Board Schematic 4001 605 1 Sht 2 ...

Page 142: ...Drawings and Schematics 12 58 ...

Page 143: ...Drawings and Schematics 12 59 Figure 12 37 Processor Schematic 4001 6021 Sht 1 Rev A ...

Page 144: ...Drawings and Schematics 12 60 ...

Page 145: ...Drawings and Schematics 12 61 Figure 12 38 Memory 1 I O Decode Schematic 4001 6021 Sht 2 Rev A ...

Page 146: ...Drawings and Schematics 12 62 ...

Page 147: ...Drawings and Schematics 12 63 Figure 12 39 Memory 2 Oem Optional Schematic 4001 6021 Sht 3 Rev A ...

Page 148: ...Drawings and Schematics 12 64 ...

Page 149: ...Drawings and Schematics 12 65 Figure 12 40 Keyboard Display Control Schematic 4001 6021 Sht 4 Rev A ...

Page 150: ...Drawings and Schematics 12 66 ...

Page 151: ...Drawings and Schematics 12 67 Figure 12 41 Mono Drive Analog Gain Reg Schematic 4001 6021 Sht 5 Rev A ...

Page 152: ...Drawings and Schematics 12 68 ...

Page 153: ...Drawings and Schematics 12 69 Figure 12 42 Filter Wheel and T O Y Lamp Control Schematic 4001 6021 Sht 6 Rev A ...

Page 154: ...Drawings and Schematics 12 70 ...

Page 155: ...Drawings and Schematics 12 71 Figure 12 43 Analog Processing Schematic 4001 6021 Sht 7 Rev A ...

Page 156: ...Drawings and Schematics 12 72 ...

Page 157: ...Drawings and Schematics 12 73 Figure 12 44 A D Schematic 4001 6021 Sht 8 Rev A ...

Page 158: ...Drawings and Schematics 12 74 ...

Page 159: ...Drawings and Schematics 12 75 Figure 12 45 Lamp Power Supply Schematic 4001 6021 Sht 9 Rev A ...

Page 160: ...Drawings and Schematics 12 76 ...

Page 161: ...Drawings and Schematics 12 77 Figure 12 46 Internal Printer Interface Schematic 4001 6021 Sht 10 Rev A ...

Page 162: ...Drawings and Schematics 12 78 ...

Page 163: ...Drawings and Schematics 12 79 Figure 12 47 External Printer Interface Schematic 4001 6021 Sht 11 Rev A ...

Page 164: ...Drawings and Schematics 12 80 ...

Page 165: ...Drawings and Schematics 12 81 Figure 12 48 RS 232 Interface Schematic 4001 6021 Sht 12 Rev A ...

Page 166: ...Drawings and Schematics 12 82 ...

Page 167: ...Drawings and Schematics 12 83 Figure 12 49 Accessory Module Interface Schematic 4001 6021 Sht 13 Rev A ...

Page 168: ...Drawings and Schematics 12 84 ...

Page 169: ...Drawings and Schematics 12 85 Figure 12 50 Board Power Supply Schematic 4001 6021 Sht 14 Rev A ...

Page 170: ...Drawings and Schematics 12 86 ...

Page 171: ...Drawings and Schematics 12 87 Figure 12 51 Processor Schematic 4001 6041 Sht 1 Rev D ...

Page 172: ...Drawings and Schematics 12 88 ...

Page 173: ...Drawings and Schematics 12 89 Figure 12 52 Memory 1 I O Decode Schematic 4001 6041 Sht 2 Rev D ...

Page 174: ...Drawings and Schematics 12 90 ...

Page 175: ...Drawings and Schematics 12 91 Figure 12 53 Memory 2 Oem Optional Schematic 4001 6041 Sht 3 Rev D ...

Page 176: ...Drawings and Schematics 12 92 ...

Page 177: ...Drawings and Schematics 12 93 Figure 12 54 Keyboard Display Control Schematic 4001 6041 Sht 4 Rev D ...

Page 178: ...Drawings and Schematics 12 94 ...

Page 179: ...Drawings and Schematics 12 95 Figure 12 55 Mono Drive Analog Gain Reg Schematic 4001 6041 Sht 5 Rev D ...

Page 180: ...Drawings and Schematics 12 96 ...

Page 181: ...Drawings and Schematics 12 97 Figure 12 56 Filter Wheel and T O Y Lamp Control Schematic 4001 6041 Sht 6 Rev D ...

Page 182: ...Drawings and Schematics 12 98 ...

Page 183: ...Drawings and Schematics 12 99 Figure 12 57 Analog Processing Schematic 4001 6041 Sht 7 Rev D ...

Page 184: ...Drawings and Schematics 12 100 ...

Page 185: ...Drawings and Schematics 12 101 Figure 12 58 A D Schematic 4001 6041 Sht 8 Rev D ...

Page 186: ...Drawings and Schematics 12 102 ...

Page 187: ...Drawings and Schematics 12 103 Figure 12 59 Lamp Power Supply Schematic 4001 6041 Sht 9 Rev D ...

Page 188: ...Drawings and Schematics 12 104 ...

Page 189: ...Drawings and Schematics 12 105 Figure 12 60 Internal Printer Interface 4001 6041 Sht 10 Rev D ...

Page 190: ...Drawings and Schematics 12 106 ...

Page 191: ...Drawings and Schematics 12 107 Figure 12 61 External Printer Interface 4001 6041 Sht 11 Rev D ...

Page 192: ...Drawings and Schematics 12 108 ...

Page 193: ...Drawings and Schematics 12 109 Figure 12 62 RS 232 Interface Schematic 4001 6041 Sht 12 Rev D ...

Page 194: ...Drawings and Schematics 12 110 ...

Page 195: ...Drawings and Schematics 12 111 Figure 12 63 Accessory Module Interface Schematic 4001 6041 Sht 13 Rev D ...

Page 196: ...Drawings and Schematics 12 112 ...

Page 197: ...Drawings and Schematics 12 113 Figure 12 64 Power Supply Board Schematic 4001 6041 Sht 14 Rev D ...

Page 198: ...Drawings and Schematics 12 114 ...

Page 199: ...Some changes were made to the Operator s Manual regarding ESD precautions whenever inside the printer compartment 2 The FAN guard was changed to non conductive plastic 3 Because of the plastic fan guard the Fan motor has to be changed to one with higher cubic foot per minute airflow rating This is required to ensure sufficient airflow through the new plastic fan guard Note If replacing the fan mot...

Page 200: ...nstrument Excessive D C offsets in the Main Board s Analog electronics This problem may be enhanced by environments with high concentration of corrosive fumes or by environments with high humidity Solution Replace the Main Board 4001 7044 or Change components as indicated below The specific component level changes are as follows COMPONENT CHANGED FROM CHANGED TO R17 R22 R30 634 K 1 63 4 K 1 R40 27...

Page 201: ...eplaced Symptom Cause Information is stored on the 335110 661 EEPROM U4 Solution When replacing the 4001 6046 Main PCB remove the EEPROM from the old board and install it into the new board The current since 01 Feb 1999 4001 6046 boards are shipped without a 335110 661 EEPROM Produce Affected All GENESYS 20 models ...

Page 202: ...ric used to be adjusted by using a Phillips head screwdriver to maximize the lamp energy throughput The core of the eccentric had a tapped hole for a Phillips head screw S The tapped hole in the eccentric core has been removed a Phillips head screw is no longer used for the adjustment A slot has been machined in the head of the eccentric core so that a slotted scredriver can be used to rotate the ...

Page 203: ...mospectronic com THERMO SPECTRONIC Europe Mercers Row Cambridge CB5 8HY UK Telephone Int 44 0 1223 446655 Fax Int 44 0 1223 446644 E Mail info thermospectronic co uk Web Site www thermospectronic com THERMO SPECTRONIC Asia Pacific Middle East Africa India and Latin America Contact Rochester New York USA Spectronic is a registered trademark and GENESYS is a trademark of Thermo Spectronic Thermo Spe...

Page 204: ...GENESYS 20 Spectrophotometer Service Manual ...

Page 205: ...l service in house repair center WE BUY USED EQUIPMENT Sell your excess underutilized and idle used equipment We also offer credit for buy backs and trade ins www artisantg com WeBuyEquipment REMOTE INSPECTION Remotely inspect equipment before purchasing with our interactive website at www instraview com LOOKING FOR MORE INFORMATION Visit us on the web at www artisantg com for more information on ...

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