String Sensitivity Trimmers Test Set Up Patch
ALL SLIDERS AND SWITCHES NOT ILLUSTRATED SHOULD BE ALL THE WAY DOWN. - ' I ---' ' r ffiV 1 III Il 1 , ' gt . . .V. -. . ' . gipplp - ATE OUT ATE M Tfi OH T AJO CATES S' fJAL FLOiU A TC 80ARD . ' ., - . SEMH SH TCH COMMECT OA S E BOTTOM LEFT OF DPAW AJ . AVATAR MODEL 2223 INTERCONNECTION DIAGRAM E38 GATE Di D, De JlA-12 JlA-ll JIA'I JlA-1 1. uuless otheevoist speof fc '. all reststoe. val oes gt m ohv s all capaotoc values ape vm p piccfafcads' 12 ' o covjve gt 4t oki osed fdp suppl-r volta e...
3 Software Update
In order to update the VM200 software, the ROM CARD PCB P N 8274219000 must be required. Mount the updated software 2 pcs. EPROMs into the EPROM sockets U1 and U2 on the PCB. When updating the software, make sure that the switch SW1 on the ROM CARD PCB is set to EPROM side. 1 Loosen 4 x screws BBT3 x 8 BZn and remove 2 pcs. ROM Cover P N 8221142000 on the VM200 bottom panel. 2 Plug the ROM CARD PCB into the J18 connector on the MAIN PCB Assy. When plugging the ROM CARD PCB, check if the EPROMs...
DC Restorer Circuit
C1488, C1487, CR1487, CR1488, and R1486 form a DC restorer circuit. All DC levels in this circuit are referenced to the negative potential of the CRT cathode. The voltage difference across R1486 approximately equals the voltage swing present at the junction of CR1482 and CR1483. The control grid end of R1486 is more negative than the end connected to CR1488. The amplitude of the voltage swings present at the junction of CR 1482 and CR1483 is determined by the voltage levels established by the...
22 Core Parameters And The Effect Of An Air Gap
Figure 2.2.1a shows a typical BIH hysteresis loop for a transformer-grade ferrite core, with and without an air gap. It should be noted that although the permeability slope of the BIH loop changes with the length of the air gap, the saturation flux density at the combined core and gap remains the same. Further, the magnetic field intensity H is much larger, and the residual flux density Br much lower, in the gapped case. These changes are vety useful for flyback transformers, which use only the...
67 TYPE K SHEATHED THERMOCOUPLE Y8102 68 Introduction
6-9. Your Y8102 can be used for almost any application, but is best suited for use as a liquid immersion type probe. In most liquids, the grounded measuring junction of your Y8102 provides fast response time. The special isothermal termination unit that plugs into your DM M eliminates temperature gradient problems by keeping the two DMM junctions at the same temperature. See Section 2 of this manual for applications.
Check Controller Voltages
To check voltages, you need to power up the projector with the top case removed. See page 80 for instructions on how to do this. Check Controller ECA Voltages and Signals 1. Prepare to power up the projector with the top case removed. page 80 2. Remove the chassis. page 12 3. Position the ballast power supply ECA near enough to the projector to connect the controller power supply cable from the controller ECA. You can do this if you turn the ballast power supply ECA over and connect it to the...
Remove and Replace the Keypad
The keypad fastens to the inside of the top case. The keypad consists of the keypad ECA 510-1774-xx , the key set 505-1515-xx , and the LED cover 340-1123-xx. The keypad ECA permanently connects to the front IR receiver ECA. A ribbon cable extends between them. The LED cover nests in the recess between the keypad ECA and the top case. It focuses light from the power LED on the keypad ECA through a hole in the top case. 1. Remove the following items Lamp module page 42 Focus ring page 30 Zoom...
Check IO ECA Voltages and Signals
1. Prepare for projector power up with the top case removed. page 80 2. Remove the chassis. page 12 3. Position the ballast power supply ECA in or near enough to the projector to connect the controller power supply cable from the controller ECA. Be sure that there is enough space above the I O ECA to allow use of measurement probes. 4. Connect the lamp to the lamp cable connector at the side of the lamphouse. Make sure the connector fully engages the connector on the lamp module. 5. Position...
Basic Operation 1
The S3 comes with three preprogrammed demonstration songs. Song 00 Sonic Boom composed by John Lehmkuhl Song 01 Norb Demo composed by Norbert Goldberg Song 02 Akira composed by Akira Ishiguro Use the following procedure to play them back 1. Switch the screen to the SONG PLAY REC mode's SONG SELECT SP1 page. a. Press the SONG key until the LED inside it turns green. b. If necessary, press the EXIT key until the abbreviation SP1 appears in the upper left corner of the display. 2. If necessary,...
409 412
Chapter 11. Turnon, Turnoff Switching Losses and Snubbers 413 11.2 Transistor Turnoff Losses without a Snubber 414 11.3 RCD Turnoff Snubber Operation 416 11.4 Selection of Capacitor Size in RCD Snubber 418 11.5 Design Example RCD Snubber 419 11.5.1 RCD snubber returned to positive supply rail 420 11.6 Nondissipative Snubbers 421 11.7 Snubber Reduciton of Leakage Inductance Spike to Avoid 11.8 Transformer-Aided Snubber 425 References 426 Chapter 12. Feedback-Loop Stabilization 427 12.2 Mechanism...
Assembly Board B
RED NUMBERS INDICATE BOARD - TO - BOARD CONNECTIONS. SEE PAGE 28 FOR FURTHER EXPLANATION. . UA L amp 5S OTHEWSe srecirieb-ALL S STO.C AJ O HS lu. lt I IPACI gt -QPS stet v uf CP ptCOFAeAbi S. H' H ST eer es cz l1 j3d , r i, 2 21 3. co v i gt y r o v L sab fou slipplv voltage RED NUMBERS INDICATE BOARD - TO - BOARD CONNECTIONS. SEE PAGE 28 FOR FURTHER EXPLANATION. MOTES'. I. UklLESS DTHEtWSE 5PEC FIEty. V-- PICOFARADS ALL DlODES ARE IM4I4S Z. HIGHEST REF DEV.C73, CTJ2S, J lt iE.,Vll, Q4-, 1222...
Figure 60 Dual Output Voltage Doubler
Figure 61. Switched Capacitor Converter 5V to 12V Figure 61. Switched Capacitor Converter 5V to 12V Figure 62. Switched Capacitor Charge Pump-Based Voltage Multiplier 5V to 12V Figure 62. Switched Capacitor Charge Pump-Based Voltage Multiplier 5V to 12V Figure 64. Regulating 200mA Converter 12V to -5V Figure 64. Regulating 200mA Converter 12V to -5V Figure 65. Digitally Programmable Negative Supply Figure 65. Digitally Programmable Negative Supply Figure 66. Positive Doubler with Regulation 5V...
1 T 1 Wbrn2
A second consideration for the selection of peak flux density is the possibility of core saturation under transient loading conditions at maximum input voltage. FIG. 2.12.3 Hysteresis and eddy-current loss in a pair of FX 3730 cores as a function of total flux at 100 C, with frequency as a parameter. Courtesy of Mallard Lid. FIG. 2.12.3 Hysteresis and eddy-current loss in a pair of FX 3730 cores as a function of total flux at 100 C, with frequency as a parameter. Courtesy of Mallard Lid.
Main airgap flux and leakage flux
Broadly speaking the motor designer shapes the stator and rotor teeth to encourage as much as possible of the flux produced by the stator to pass Figure 5.7 Resultant air-gap flux density wave produced by a complete 3-phase, 4-pole winding at three successive instants in time Figure 5.7 Resultant air-gap flux density wave produced by a complete 3-phase, 4-pole winding at three successive instants in time right down the rotor teeth, so that before completing its path back to the stator it is...
Switch Film Sheet
Changed to 22663115. Sound Names on TONE SELECTOR buttons are deleted. X-f f ' 7 V F lt 0 F - y -fc V F ft fetf t Music Rest is furnished on later products. Effective Serial Number is not fixed on the day of the issue.
Dsch3 1
File this supplement with the service manual. US Model Canadian Model AEP Model UK Model E Model Australian Model Hong Kong Model Chinese Model Korea Model Argentine Model Brazilian Model Japanese Model Tourist Model Change of Board's Suffix No. Note Please refer to Ver. 1.2 of SERVICE MANUAL 9-852-211-31 for the revision of accessories. Suffix No. of JK-348 flexible board has been changed from TT into T2 About suffix No. TT and T2 , there are no change of schematic diagram and printed wiring...
1027 SoftStart Techniques
Some applications need the input current to be controlled, to prevent high current spikes when power is first applied. This could be to reduce damage to switch contacts by the risk of sparking. Clearly the inrush techniques just described could be used, but sometimes it is necessary to control the output power instead. For example, a circuit for driving one or two power LEDs from the AC mains could use a double-buck topology. But typical applications for this circuit are inside lamp housings,...
Noise blanker NB circuit
The input of the NB circuit is extracted from the outputs of second-stage RX mix FETs Q13 and Q14 2SK520 K44 and is applied to the NB hybrid IC1 KCX01 . The input signal is amplified and detected by IC1 then output as a noise blanking signal. The operation of IF amplifier Q15 3SK13KM is stopped by NB switching transistor Q16. Noise components are then eliminated. NB1 is used for short-duration pulses such as ignition noise. NB7 is used for longer-duration, long duration pulse noise such as the...
n Polarized GlassOutPrePolarized Glass removal
1 Remove 4 screws A M2.5x4 and take the LCD Prism ass'y off upward from the optical unit. 2 Remove each screw B and take the glass off upward. Do not replace the LCD panel separately otherwise it can not obtain proper picture.
Jp4 Adjustment
The last page of this ADJUSTMENT has a foldout which shows location of test points. Numbers in circle on the figures in this adjustment refer to trimmer potentiometers used for adjusting, whose designations are independent of those on circuit diagrams and PCB layouts. In some PCBs, exact trimmer location may differ from representaion shown below. Some PCBs have fewer preset potentiometers. CAUTION - Pour Trimmers, CONTROL BOARD G - Always set these trimmers at midpoint before starting...
Basic Controls Settings
Trimmer 31 P- INV of Module Board 052-314E later version,S N xx4100- All midpoint. These settings allow each adjustment step to be made with minimum reset. CONTROL BOARD-G 052-236 all pots at midpoint CONTROL BOARD-G 052-236 all pots at midpoint 1. DC VOLTAGE 15 Volt power supply board
Parts Lists
The following tables list the replaceable parts for the 268XA devices. PCAs may be subject to damage by static discharge. Table 7-1. 2680A Final Assembly Parts List Table 7-1. 2680A Final Assembly Parts List HOLDER,HLDR,FUSE,1 4 X 1-1 4,LOPROFILE,PNLMT 2680A-4004 PCA, SYSTEM POWER AND CONTROLLER 5500A-4417,WIRE, BINDING POST TO FASTON LC1 LINE CORD,NORTH AM,10A,5-15 IEC,18 3,SVT,7.5 FT MNO2,3.0V,0.560AH,CR2450,COIN,PC PINS,24X5MM,BULK CABLE ASSEMBLY,FLAT,20 COND,MICRO MODUL RECEPT,FERRITE,12...
Type St
Note 1 Don't use the 12 pin flexible board of CPC-9 jig. It causes damage to the unit. Note 2 The old CPC-9 jig Parts code J-6082-393-B cannot be used, because it cannot operate the adjustment remote commander. Description on Self-diagnosis Display The camera has a self-diagnosis display. This function displays the camera condition with five-digits a combination of a letter and figures on the LCD screen. If this occurs check the following code chart. The five-digits display informs you of the...
Graphical interpretation via phasor diagram
We will look at the current phasor diagram as the slip is varied, for two motors, both having the same leakage reactance, XT. One motor will be representative of the 'low-resistance' end of the scale R2 0.1 XT while the other will represent the 'high-resistance' end R2 XT . As before, the voltage and frequency are constant throughout. The reason for choosing total leakage reactance as the common factor linking the two motors is simply that the current loci see below are then very similar, and...
Ma9006
The storage circuit, located on the storage unit, supplies voltage levels and timing pulses to control the storage part of the C.R.T. in the SAVE, READ, ERASE and WRITE modes and in the positions PERSISTENCE and MAX. WRITE. The storage circuit will be discussed with the aid of the simplified diagram of this circuit as shown in Fig. 3.12. The schematic of this circuit is on the diagram Fig. 3.51. at the rear of the manual. The WRITE mode is operative after depressing push-button SK25. Assume...
75 Conclusions
The boost-buck is an ideal topology where the LED load voltage can be higher or lower than the supply voltage. It should also be used when the supply voltage is no more than 20 difference worst case from the LED load voltage. So if the LED voltage maximum is 20 V and the supply voltage minimum is 23 V, the difference is 3 V, and 3 20 0.15 or 15 , so a Cuk or SEPIC should be used. If the supply voltage is more than 20 higher, use a buck topology. If the supply voltage is more than 20 lower, use...
613 Example Of Rectifier Capacitor Input Filter Dc Output Voltage Calculation
Consider the previous example for a 250-W unit. The input power is 357 ind a voltage doubler circuit is to be used at 110 V input. The total series re - ce S . UtpUt V0ltaBe 0f a ful -wave bridge-rectified capacitor input filter as a function of greater 6 S0UrCC res,stance as a P meter. Valid for capacitor values of 1.5 VV or FIG. 1.6.8 Mean DC output voltage of a voltage doubler capacitor input filter as a function of load power, with effective source resistance as a parameter. Valid for...
84 Final Assembly Parts
See Table 8-1 and Figure 8-1 for the Final Assembly parts. Top case assembly Fluke 192B, 196B, 196C, 199B, 199C without Keypad set includes large amp small keypad Display unit B W Fluke 192B, 196B, 199B The Display unit does not include the flat cable Flat cable for display unit both versions Unit is provided with sticker 190B C see note 1 below On delivery the Fluke 199C testsoftware is loaded Load appropriate software and type number, then See Section 10.4 for more information. Bottom case...
127 Snubber Components Halfbridge
Components C3, C4, and Rl are often referred to as snubber components they assist the turn-off action of the high-voltage transistors Q1 and Q2 so as to reduce secondary breakdown stress. As the transistors turn off, the transformer inductance maintains a current flow, and the snubber components provide an alternative path for this current preventing excessive voltage stress during the turn-off action. The conventional diode, capacitor, snubber circuit should not be used in the half-bridge...
LinkELECTRICAL PARTS LIST [ accessories
-XX, -X mean standardized parts, so they may have some differences from the original one. Items marked are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. The mechanical parts with no reference number in the exploded views are not supplied. Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. All resistors are in ohms. METAL...
Proximity Effect Further Increases Winding Losses
Proximity effect - losses due to eddy current generated by the magnetic field experienced by a particular conductor section but generated by the current flowing in the rest of the winding. Design methods for minimizing proximity effect losses discussed later. Pw Pdc Pec Pec eddy current loss. Pw Rdc Rec Irms Rac Irms Rac FR Rdc 1 Rec Rdc Rdc Minimum winding loss at optimum conductor size. High frequencies require small conductor sizes minimize loss. Pdc kept small by putting may small-size...
Schematic Diagram
Notes 1 AM capacitance values are indicated in uF lt p - 10pF . 2 All resistance values are indicated in ohms k 10 ohm, M lO'ohml 3 Large letter R represents a resistor's reference number e.g R19 Registor number 19 4 Refer to pages 14 15 for T waveforms and page 17 for their vestpomts, 15 Wire color code R - red, W - white. BL - blue
Power Supply
Your QY10 Music Sequencer will run either from batteries or an AC adapter both sold separately. Follow the instructions below according to the power source you intend to use. Six 1.5V AA size SUM-3 or R6P or equivalent alkaline batteries sold separately must first be installed in the battery compartment. 1. Open the battery compartment cover located on the instrument's bottom panel by sliding it in the direction of the arrow. 2. Insert the six batteries, being careful to follow the polarity...
20 Handlebracket Handleshaft Handlespeakerspeaker Holder Filter Sfilter R
1 Remove the two screws T , and take out the two 3 Remove the one screw 2 , and take out the BRACKET HANDLE . SPEAKER HOLDER and the SPEAKER. 2 Remove the two SHAFT HANDLE , and then take out the HANDLE.
51 Introduction
5-2. This section contains an illustrated parts breakdown of the instrument. A similar parts listing for each of the Options will be found in Section 6. Components are listed alphanumerically by assembly. Both electrical and mechanical components are listed by reference designation. Each listed part is shown in an accompanying illustration. 5-3. Parts lists include the following information 4. Federal Supply Code for Manufacturers. See Table 5-6 for Code-to-Name list. 5. Manufacturer's Part...
1433 The Weighted Resistor DA Converter
This type of converter is very similar to the Resistor Ladder D A converter. In this case, however, each resistor in the string is given a value proportional to the binary value of the bit it represents. Currents are then summed from each active bit to achieve the output Figure 14-2 . Figure 14 2. Binary Weighted D A Converter Figure 14 2. Binary Weighted D A Converter The number of resistors and switches reduced to one per bit, but the range of the resistors is extremely wide for...
76 Lead Compensation
Figure 7-13. Lead-Compensation Circuit transfer function The equation for the inverting op amp closed-loop gain is repeated below. Figure 7-14. Lead-Compensation Bode Plot When a approaches infinity, Equation 7-13 reduces to Equation 7-14. Substituting RF C for ZF and RG for ZG in Equation 7-14 yields Equation 7-15, which is the ideal closed-loop gain equation for the lead compensation circuit. The forward gain for the inverting amplifier is given by Equation 7-16. Compare Equation 7-13 with...
57 Snubber Components
Because power FET devices are not subject to the same secondary breakdown mechanisms that occur with bipolar devices, from a reliability standpoint, it is often considered that snubber components are not essential. However, in most FET applications, a small RC snubber network will still be fitted across the FETs to reduce RF radiation and meet the dv df limitations of the FET. With very high dvldt, some power FETs display a failure mode resulting from conduction of the internal parasitic...
1 Outline software descriptions
This is the PC control software for servicing adjustments to be conducted during the replacement of the MAIN PWB, LCEP PWB, VIDEO-DEC PWB, or the LCD panel for the LCD projector, the VT440 VT540 Series. This software is used for the adjustment of Sub-Brightness Sub-Contrast, Flicker, and Ghost, and also the modification of Lamp Usage Time, Filter Usage Time, Panel Usage Time, Projector Usage Time, and Language Selection. In addition, it enables reading and writing of various data, such as the...
Module Replacement 1
Only supplied components IC9602-03, Q9604-11, Q9614, D9601, D9604-09, D9611-12, D9616-29, _R9601, R9630-34, R9636-40, R9653, C9603, C9610, C9617-19, T9604, SW9601, S9602, TXJ L2VKB9
135 AntiAliasing Filters
Spurious effects in the receiver channel Figure 13-1 appear as high frequency noise in the baseband signal present at the ADC. The spurious signals gt 2 must be blocked from getting to the ADC sampling at Nyquist rate, s where they will cause aliasing errors in the ADC output. A suitable anti-aliasing low-pass analog filter placed immediately before the ADC can block all frequency components capable of causing aliasing from reaching the ADC. The anti-aliasing filter cutoff frequency fc is set...
Assemblydissassembly
NOTE These two screws MUST be replaced n the correct places. SECTION 2 CIRCUIT DESCRIPTIONS Board A-1 Each key on the keyboard has its own capacitor-resistor-diode network. The capacitors are normally charged to 15 volts until a key is depressed at which time the capacitor discharges through the diode creating a trigger pulse on the trigger bus rod. Q1 through Q4 are a monostable multivibrator which delays the trigger pulses 15 milliseconds to allow the gate and CV to stabilize. P1, the pitch...
721 Replacement of PBS Array Analysis Block
1. Remove the analysis case upper according to the steps 1 through 3 in the section 7.18. Replacement of Incidence Polarizer R and B . 3. Install new PBS array. Note Be careful not to mistake the direction inside and outside, upper and lower . Be careful not to touch the surface of PBS array.
Pin Function of Percussion Generator
The terminal holds LOW level at power switch on for initializing the internal circuit The LSI reads the percussion data from the CPU when the terminal is LOW level. Chip select signal input. Fixed at LOW level. Ground 0V source for internal digital circuit 5V source for internal digital circuit CPU outputs four each of pitch and envelope signals. Normally all the signals are for melody sounds however, when the demonstration music is played, each pitch and envelope signals become obbligato,...
The INTCON register
This register controls the processing of interrupts. The bits of interest are lt 7 gt GIE 1 interrupts enabled, 0 interrupts disabled. This bit is used to switch all interrupts on or off with a single command. lt 6 gt PEIE 1 enable peripheral interrupts, 0 disable these interrupts. lt 5 gt TOIE 1 enable timer TR0 overflow interrupts, 0 disable. lt 4 gt INT 1 enable INT interrupt, 0 disable. The INT interrupt is an external interrupt occurring when RA2 changes. The direction of change that...
The Controls Connectors
Slide to the ON position to turn the power on. Always turn the POWER switch OFF when the QY10 is not in use to prevent unnecessary wear on the batteries. The DC output cable from an optional Yamaha PA-IB or PA-3 AC Adapter can be connected here to power the QY10 when the batteries are depleted, or simply to reduce wear on the batteries when an AC outlet is handy. When the AC Adapter is used the batteries are automatically disconnected. In addition to allowing input from an external MIDI...
XAxis Amplifier
In all positions of the TIME DIV switches except X-Y, the input signal to the base of Q1224 will be the sawtooth waveforms from the sweep generators. In the X-Y mode however, the sweeps are disabled and the signal applied to Q1224 comes from the Channel 1 Preamp via the X-Axis Amplifier stage. This stage includes Q1214, Q1218, and their associated circuitry. Fig. 3-7. Detailed block diagram of the Horizontal Amplifier. Fig. 3-7. Detailed block diagram of the Horizontal Amplifier. Q1214 is...
Connection Pin Assignments
COMPUTER-RGB COMPONENT INPUT1, 2 and COMPUTER-RGB COMPONENT OUTPUT Terminals Video input green sync on green Video input blue Not connected Not connected Earth red Earth green sync on green Earth blue Not connected GND Not connected Bi-directional data Horizontal sync signal TTL level Vertical sync signal TTL level Data clock PB CB Not connected Not connected Earth PR Earth Y Earth PB Not connected Not connected Not connected Not connected Not connected Not connected Not connected...