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TTI QL II Series, Service Manual

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Page: 34 / 47

TTI QL II Series Service Manual Download Page 34

33

Component Layouts

CONTROL PCB

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Summary of Contents for QL II Series

Page 1: ...QL Series II Precision Power Supplies Service Manual Book Part Number 48511 1740 Issue 1...

Page 2: ...1 Table of Contents Specification 2 Safety 5 General 6 Circuit Descriptions 7 Calibration 10 Parts List 12 Interconnection Diagram 32 Component Layouts 33 Circuit Diagrams 39...

Page 3: ...evel for a change in load current from full load to half load or vice versa Voltage Programming Speed Maximum time required for output to settle within 1 of its total excursion for resistive load Excl...

Page 4: ...pitch Duplicate screwless terminals on rear panel Output Protection Output will withstand up to 16V forward voltage Diode clamp reverse protection for currents up to 1A Over current trip Ripple Noise...

Page 5: ...0 5mA on 500mA range Readback V I See meter specifications Auxiliary Output T models only Voltage Setting Resolution 10mV accuracy 0 5 10mV Current Setting Resolution 10mA accuracy 0 5 10mA Readback V...

Page 6: ...rohibited The protective action must not be negated by the use of an extension cord without a protective conductor When the instrument is connected to its supply terminals may be live and opening the...

Page 7: ...e access by unscrewing the front panel remove the screw s securing the front panel bracket s to the spacer in the centre of the Power pcb s and remove the screws that fix the bottom edge of the front...

Page 8: ...25V 4A Secondary high tap no load 60VAC 30 1VAC Secondary high tap full load 56VAC 28 6VAC C4 high tap no load 79 5VDC 38 4VDC C4 high tap full load 69 5VDC 35 2VDC A 30Vrms centre tapped winding and...

Page 9: ...t for voltage and current settings The DAC output is multiplexed into 7 sample and holds IC14A is for the voltage control VC when the output is off IC42B grounds its input via VR2 IC28B drives the gua...

Page 10: ...ut voltage and current The opto couplers provide isolated communication with the processor on Output 1 Interface Pcb The interface board allows the unit to communicate externally via USB RS232 LAN or...

Page 11: ...nits calibrate both output 1 and output 2 There are two internal adjustments which are factory set and will normally only require adjustment if a component has been changed in the associated area If t...

Page 12: ...M V readback 13bit 6 56V 2A 0 01V 2A 10mV 0 5mV DVM o p 0V 7 56V 2A 35V 2A 35V 0 5mV DVM o p V span 8 56V 2A 2V 0 001A 1mA 0 5mA milli ammeter o p A offset 9 56V 2A 2V 0 001A 0 001 on display milli am...

Page 13: ...AY STR F LOCK 156 PJ2 22573 0247 HEADER 2 WAY STR 1P F LOCK PJ6 Rear Mount PJ7 REAR MOUNTED PJ9 22573 0251 HEADER 6 WAY STR 1P F LOCK PJ5 PJ13 R MOUNTED 22573 0262 HEADER 2 WAY RT ANG F LOCK 1P PJ4 22...

Page 14: ...0560 RES SM0805 56R0F W1 R124 125 R128 R131 R138 139 R145 154 23105 1100 RES SM0805 100RF W1 R12 R23 24 23105 1180 RES SM0805 180RF W1 R1 2 23105 1220 RES SM0805 220RF W1 R28 23105 1270 RES SM0805 270...

Page 15: ...M NPN BC849C SOT23 Q1 2 Q10 12 Q18 Q24 25381 1000 TRAN SM NPN SMBT3904 Q17 Q21 25381 1010 TRAN SM NPN BC817 Q23 27103 1040 IC SM LM393 IC6 IC50 27164 1070 IC SM ULN2003AD SOIC16 IC38 27227 0210 IC SM...

Page 16: ...23202 3220 RES 22K0F W60 MF 50PPM R3 R96 23274 0105 RES 0R33J 3W WW R26 R27 23424 0443 CAP 10NZ 1KV CER D10 P5 C12 13 23557 0660 CAP 2200U 16V ELEC RE2 P5 C3 23557 0664 CAP 1000U 35V ELEC RE2 P5 C1 2...

Page 17: ...R67 68 102 105 23105 3205 RES SM0805 20K5F W1 R35 23105 3470 RES SM0805 47K0F W1 R76 23105 4100 RES SM0805 100KF W1 R97 98 108 23105 4220 RES SM0805 220KF W1 R77 103 104 113 131 23105 4270 RES SM0805...

Page 18: ...19 25031 0040 DIO BAX16 D13 14 25334 0011 TRAN PNP TIP30 Q18 25336 5590 TRAN PNP BC559C Q9 25341 0218 TRAN PNP 2N3906 Q25 25377 5490 TRAN NPN BC549C Q4 5 25383 0610 TRAN NPN ZTX653 Q19 20 25601 0620...

Page 19: ...B MTG PJ1 22574 0900 SKT RJ45 SI 60005 F PJ6 22575 0065 HEADER 20 WAY 2X10 STR SKELN PJ5 23557 0688 CAP 1000U 16V ELEC P5 C98 25211 9302 RECTIFIER BRIDGE W02G BR1 27160 0460 IC V REG L4941BV IC15 2716...

Page 20: ...R C38 39 23559 0010 CAP SM 100UF 6 3V AL ELEC C99 23559 2221 CAP SM 220U 10V AL ELEC C37 23559 3470 CAP SM 47U 16V AL ELEC C9 C12 13 23595 0010 CAP SM A 1U0M 16V TANT C10 11 C31 23595 0110 CAP SM B 10...

Page 21: ...1 33 LED35 37 25061 0302 LED SM GREEN 3 2 X 2 8MM LED12 34 25061 1000 DISPLAY SET QL 56 LED 9MM LEG DISP1 6 35555 3520 PCB KEYBOARD 43171 1310 CONN ASSY 20 WAY 135MM PJ12 15 PCB ASSEMBLY TERMINAL Part...

Page 22: ...03 D1 25117 0020 DIO 1N5401 D2 6 27160 0011 IC V REG 78L05 TO92 IC5 43171 2700 CONN ASSY 10W 400 ST QL T PJ2 43187 2010 WIRE SET CUT nQL AUX UL 2 PASSES OF EACH WIRE THROUGH L2 44117 0211 PCB ASS SM A...

Page 23: ...25377 1000 TRAN SM NPN BC849C SOT23 Q1 27002 0020 OPTO COUPLR SM IL206AT SOIC8 IC6 10 27106 1160 IC SM LM324M OP AMP SO14 IC4 27106 1250 IC SM MCP602 OP AMP IC3 27168 1100 IC SM MP2307 SO8 IC1 27239...

Page 24: ...B QL 31512 0880 BRACKET F PANEL TO CHASS QLS 31512 1070 BRACKET FAN SUPPORT QL S 33111 0280 BRACKET HANDLE PSU UNIVERSAL 33143 0293 FOOT TILT HOUSING GREY3 FEET FRONT 33143 0303 FOOT TILT SUPPORT GREY...

Page 25: ...PLAS PNHDPZ K B FP 4 Handle bracket 2 20210 0110 NUT M4 BARB Terminals 20210 0112 NUT M3 BARB Barrier block 2 Remote sense pcb 2 20213 0010 CAPTIVE NUT SNU 1219 17 00 TX 20213 0040 CAPTIVE NUT SPIRE...

Page 26: ...NIUM SAFETY TERM Earth 22571 1150 TERM PSU SAFETY REAR INS YEL 22571 1210 TERM PSU SFTY2 28L SPINDLE GRY 22571 1220 TERM PSU SAFETY2 TOP INS RED 22571 1230 TERM PSU SAFETY2 TOP INS BLK 22571 1240 TERM...

Page 27: ...180 PCB ASSY POWER nQL355 44117 0210 PCB ASSY AUX TERM POWER nQLT 44117 0220 PCB ASSY LAN USB 232 GPIB 47511 0010 L KEYPAD QLT LEFT 47511 0010 R KEYPAD QLT RIGHT FIXINGS AND FASTENERS QL355T TP QL564T...

Page 28: ...ANICAL ITEMS QL564T QL564TP UNPACKED PARTS LIST Part No Description Position 10232 0360 TUBING PVC CLEAR 9 5ID UL Mains wire to mains switch sleeving 70mm 20010 0262 RIVET SNAP LOCK 4 1D X 3 5T AUX PC...

Page 29: ...10U 63V ELEC P2 28522 0050 FAN 80MM 12VDC QL UL SP 31512 0820 BRACKET F PNL CHASS QLTRIPLE 31512 0830 BRACKET R PANEL TO PCB QL 31512 1080 BRACKET FAN SUPPORT QL T 33111 0280 BRACKET HANDLE PSU UNIVER...

Page 30: ...0 FOOT SELF ADHESIVE GREY FEET FRONT 20662 9101 INSTRUMENT FOOT FEET BACK 22040 0030 FERRITE SLEEVE APPX 9 16 17L QTY 1 FOR OUTPUT LEADS 2 PASSES QTY 1 FOR 22115 0880 TRANSFORMER nQL564 ULSP 22219 009...

Page 31: ...ERLAYTERM NAM LOGnQL564 33533 0430 LENS DISPLAY QL 33533 0440 WINDOW DISPLAY QL 33536 4323 COVER PAINTED QL SINGLE GREY3 33536 4350 CHASSIS PRINTED QL SINGLE 33536 4830 CHASSIS PRINTED QL P SINGLE 371...

Page 32: ...31 Block Diagram...

Page 33: ...32 Interconnection Diagram SINGLE PSU TRIPLE PSU...

Page 34: ...33 Component Layouts CONTROL PCB...

Page 35: ...34 POWER PCB...

Page 36: ...35 MAIN TERMINAL PCB AUXILIARY POWER PCB TRIPLE ONLY...

Page 37: ...36 INTERFACE PCB...

Page 38: ...37 KEYBOARD DISPLAY PCB SINGLE...

Page 39: ...38 KEYBOARD DISPLAY PCB TRIPLE...

Page 40: ...39 Circuit Diagrams AC SUPPLY CONNECTION PCB MAIN OUTPUT FRONT PANEL TERMINAL PCB...

Page 41: ...QL SERIES II POWER PCB Sheet 1 of 2...

Page 42: ...QL SERIES II POWER PCB Sheet 2 of 2...

Page 43: ...DAC ADC Sample Hold ccts error logic Control Pcb Sheet 1 of 2...

Page 44: ...Voltage Current Control OVP Sense fault trip Control Pcb Sheet 2of 2...

Page 45: ...QL SERIES II AUXILIARY PCB...

Page 46: ...QL SERIES II INTERFACE PCB Sheet 1 of 2...

Page 47: ...QL SERIES II INTERFACE PCB Sheet 2 of 2...

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