Heath Zenith SP-2718 Operation Manual Download | Manualshive

Page: 1 / 22

background image

1
2
3
...
»

Summary of Contents for SP-2718

Page 1: ...HEATH 7 11 6 TRI POWER SUPPLY Model SP 2718 595 1841 02 I 1 J1 __1 r u L _ _ r L o J HEATH COMPANY Copyright 1976 BENTON HARBOR MICHIGAN 49022 Heath Company All Rights Re served ...

Page 2: ...d X Ray View 20 Tracking Mode Applications Schematic Diagram Fold in Page 9 IN CASE OF DIFFICULTY 10 General 10 WARRANTY Inside front cover Primary Circuit 14 5 Volt Supply 14 20 Volt A and B Supplies 15 Metering Circuit 15 CALIBRATION 16 APPENDIX 18 Independent Mode Applications 7 Parts List 18 SERVICE INFORMATION Inside rear cover Troubleshooting Chart 12 ...

Page 3: ...no load to full load on 20 volt supplies Less than 3 150 mV variation from no load to full load on 5 volt supply 20 volt Supplies Less than 0 2 40 mV for a line voltage change of 10 volts 5 volt Supply Less than 0 2 10 mV for a line voltage change of 10 volts Less than 5 mV rms Limiting for each supply fixed slightly above rated current to provide short circuit protection 2 to 18 volts Less than 1...

Page 4: ...d 0 2A 100 135 VAC or 200 270 VAC 50 60 Hz 100 watts at full load None Continuously variable oto 20 volts 4 1 2 high x 10 3 4 wide x 9 deep 11 43 cm x 27 3 cm x 22 86 cm 10 Ibs 3 73 kg The Heath Company reserves the right to discontinue products and to change specifications at any time without incurring any obligation to incorporate new features in products previously sold ...

Page 5: ... to a load from the output of the B supply and 5V VOLTS the voltage available at the output of the 5 volt supp ly The l Jpper meter scale in black corresponds to the following METER switch functions also printed in black A VOLTS the voltage at the output of the A supply B VOLTS the voltage at the output of the B supply and 5V AMPS cur rent flowing to a load from the output of the 5 volt supply SUP...

Page 6: ...ided at the output jacks on the front panel These are the Independent and the Track ing modes Each will be discussed under separate headings INDEPENDENT MODE Each of the three power supplies in the Tri Power supply may be operated independently from one another either floating or referenced to another AC or DC source or referenced to the Tri Power Supply ground connection at J1 In addition any of ...

Page 7: ...p to 200 volts or to the Power Supply front panel GND jack at J1 INDEPENDENT MODE APPLICATIONS INDEPENDENT FLOATING SUPPLIES Refer to Figure 2 as you read the following information Figure 2 illustrates each of the three Power Supply outputs connected to separate loads Each of the supplies may be floated at a level up to 200 volts from ground or from each other In this example the MODE switch is at...

Page 8: ...of a circuit in which the 5 volt terminal is referenced to ground and both the 0 to 20 volt A and B supplies are referenced to 5 volts Thus each of the positive going 20 volt supplies can be varied from 5 to 15 volts 20 volts overall r r Io LOA D O SODmA Figure 4 Figure 4 is an example of a circuit in which the three outputs of the circuit are connected in series with a ground reference at the hig...

Page 9: ...is tors Each supply is short circuit and overload protected either 20 volt supply may current limit slightly before the other TRACKING FLOATING CIRCUITS NOTE Each of the three power supplies is connected to a separate load as shown in Figure 7 Each supply is floating and independent of reference levels In this configuration the MODE switch must be in TRACKING to produce the following outputs 5 vol...

Page 10: ... and high voltage DC is present at several points in the Power Supply Be careful to avoid personal shock when you work on the Power Supply Refer to Figure 8 Be cautious when you test the transistors and integrated circuit Although they have almost unlimited life when used properly they are more susceptible to damage from excessive voltage and current than other circuit components Do not short any ...

Page 11: ...sly described The replacement transistor must be installed with its leads in the proper holes Then quickly solder the leads to avoid heat damage Cut off the excess lead lengths CAUTION On several areas of the circuit boards the foil patterns are quite narrow When you unsolder a part for check ing or replacement avoid excessive heat while removing the part A suction type desoldering tool will make ...

Page 12: ...reater than 5 25 volts DC Ii 1 Integrated circuit IC1 Unable to get 1 5 amperes of current from supply 1 Integrated circuit IC1 defective 2 Resistor R4 Excessive ripple at output jacks 1 Integrated circuit IC1 2 Diodes 01 or 02 3 Capacitor C2 5 volt supply not floating Resistance from either output jack to chassis is less than 1 Mil I 1 Integrated circuit IC1 case contacting chassis 2 Capacitor C5...

Page 13: ...tor 0204 faulty Page 13 1 CONDITION POSSIBLE CAUSE Output current does not limit 1 Solder bridge A or solder bridge B open 2 Transistor 0104 or tran sistor 0204 faulty 3 Resistors R108 R109 or resistors R208 R209 defective Excessive ripple in I 1 Diodes 0101 0102 or diodes output voltages 0201 0202 open or faulty 2 Capacitors C101 C103 C104 C105 C108 or capacitors C201 C203 C204 C205 C208 open or ...

Page 14: ... operation to 240 VAC operation without rewir ing the primary circuit of power transformer T1 To change from 120 VAC operation to 240 VAC operation for example you need only to push the slide of switch SW2 to indicate the voltage that agrees with the local AC service Three transformer secondary windings provide separate volt age sources for the three voltage regulators of the 5 volt supply and the...

Page 15: ...ompare a portion of the reference voltage as set by control R7 with a portion of the output voltage sampled between resistors R123 and R124 An example of the action of this regulator circuit might be as follows If the output voltage rises due to a reduction in the load the base voltage of transistor 0108 will increase The collector voltage of 01 OB will drop causing an increase in the base current...

Page 16: ...S SUPPLY A control Fully clockwise SUPPLY B and A TRACKING B controls Fully clockwise MODE switch TRACKING CAUTION WHEN THE LINE CORD IS CONNECTED TO AN I AC OUTLET HAZARDOUS VOLTAGES ARE PRESENT IN SIDE THE CHASSIS REFER TO THE CHASSIS DRAWING ON PAGE 11 TO LOCATE THE AREAS WHERE THESE VOLTAGES ARE PRESENT DO NOT PUT ANY PART OF YOUR BODY OR ANY TYPE OF TOOL IN THESE AREAS WHILE THE LINE CORD IS ...

Page 17: ...FF and remove the line cord from the AC outlet Turn the METER switch to A VOLTS On the circuit board adjust control R116 until the painter Position the cabinet top onto the Power Supply assem is directly over 20 on the upper meter scale bly and secure each side with three of the 6 x 1 4 screws previously removed Set the MODE switch to INDEPENDENT The painter should now indicate between 19 and 21 o...

Page 18: ...R9 12 156 Dual 10 kn control Rl0 NOT USED Rll 2 323 19 95 kIl 1 2 watt 1 R12 2 181 5490 n 5 49K 1 2 watt 1 R13 2 323 19 95 kIl 1 2 watt 1 Capacitors Cl 21 72 005 JLF 1 4 kV disc C2 25 822 12 000 JLF electrolytic C3 21 173 0022 JLF disc C4 21 99 0 2JLF disc C5 21 16 01 JLF disc C6 21 16 01 JLF disc C7 21 16 01 JLF disc CIRCUIT Compo Number PART No DESCRIPTION DJodes 01 02 57 42 57 42 3A1 silicon re...

Page 19: ...n 1 2 watt 5 Transistors R213 1 56 1 12oon 1 watt 10 R214 1 20 10 k l 1 2 watt 10 0101 R215 1 48 390 n 1 2 watt 10 0102 R216 10 918 500 n control 0103 R217 1 157 R218 1 24 470 n 1 2 watt 5 33 kn 1 2 watt 5 0104 0105 R219 1 89 2400 n 1 2 watt 5 0106 R220 NOT USED 0107 R221 1 24 R222 1 128 R223 2 265 33 kn 1 2 watt 5 62 k l 1 2 watt 5 12 2 k l 1 2 watt 1 0108 0201 0202 R224 2 247 5000 n 5K 1 2 watt ...

Page 20: ...placement part A Find the circuit component number R111 C101 etc on the X Ray View B Locate this same number in the Circuit Component Number column of the Parts List C Adjacent to the circuit component number you will find the PART NUMBER and DESCRIPTION which must be supplied when you order a replacement part ...

Page 21: ... o o i a u 1 I n I 7 i I I L t 1 1 I l J ...

Page 22: ...N L2 _ _ ____ J _76 _r i g JI METER V SL iWW fir w l Io atoI O Jt l 9 I POVIf A swrrCH SW1 rc A II po orr 4QY IIIs t7 fr UI lE SNITCH SW2 UNOERSIOE Of C SS 8 s a c r nrrllCl I Ooe WXlMOloDl llnllr Cf lJT O I Oo tau f 01 1 II1 _ OlJT1I IT A S JI_I l lItCl r JttaJlh ru tO l kI I _ Id 1 J S4oOfl y0ll lnIt or cgrroiI 4 1TIW porMN or 4IgfitV T trl nIlCI Cf f J o 1r bIC f t r3 1_ Figure 1 ...

Reviews:

No comments

Related manuals for SP-2718

Brand: Omega Pages: 8

Brand: ODA Pages: 113

Brand: Laser Pages: 2

Brand: TDK-Lambda Pages: 18

Brand: TDK-Lambda Pages: 19

Brand: TDK-Lambda Pages: 7

Brand: TDK-Lambda Pages: 16

Brand: TDK-Lambda Pages: 27

Brand: TDK-Lambda Pages: 28

Brand: TDK-Lambda Pages: 42

Brand: Paslode Pages: 20

Brand: Wacker Neuson Pages: 30

Brand: MaxPro PROFESSIONAL Pages: 50

Brand: Parkside Pages: 202

Brand: Ryobi Pages: 124

Brand: BSM Pages: 96

Brand: Goobay Pages: 4

Brand: FASANO TOOLS Pages: 8

Brands by name

0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Popular brands

Load more brands