Hameg HM305-2 电路图.pdf

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1、RadioFans.CN 收音机爱 好者资料库 1 nderungen vorbehalten / Subject to change without notice St. 010998 goRR Service Manual Circuit Diagrams Adjustment procedure Interface commands HM305-2 Circuit diagrams Board allocation (Bottom view) . 2 (Top view) . 3 AT-Board Diagram . 4 Top side. 5 Bottom side . 6 Main-

2、Board Main-Board Diagram. 7-11 Top side. 12 Bottom side . 13 FC-Board Diagram . 14-15 Top side. 16 Bottom side . 17 YF-Board Diagram . 18 Top and Bottom side . 19 Digital-Board Diagram . 20-24 Top side. 25 Bottom side . 26 CRT-Board Diagram .27 Top an Bottom side . 28 PS-Board Diagram . 29 Top side.

3、 30 Bottom side . 31 PI-Board Diagram 1st WORD:Positive peak value 2nd WORD:Negative peak value 3rd WORD:Peak to peak value 4th WORD:DC trigger working point (reference value) Weighting : - WORD 1-3:ca. 20mV/LSB - WORD 4:ca. 5mV/LSB and 250mV/DIV (2.00: 1st WORD: Positive peak value 2nd WORD: Negati

4、ve peak value 3rd WORD: Mean arithmetic value 4th WORD: Reserved Weighting: 1000 Bit/DIV TRGLEV?TRGLEV:(w)Delivers TRIGGER-LEVEL A/B setting (10 bits) w = 3FF hex.:max. positive (right limit) w = 000 hex.:max. negative (left limit) TRGLEV=(w)(R CR LF)Sets TRIGGER-LEVEL A/B setting (10 bits) nderunge

5、n vorbehalten / Subject to change without notice73 VERMODE?VERMODE:(b)Delivers VERTICAL MODE (vertical setting ) see table of instrument fields DDF VERMODE=(b)(R CR LF)Sets VERTICAL MODE (vertical setting) see table of instrument fields DDF VERS?VERS:(ARRAY)Delivers SOFTWAREVERSIONs 5 bytes of comma

6、nds + 15 bytes of parameters WFMPRE? (3WFMPRE:(array)WAVE FORM PREAMBLE Delivers Data for the stored traces array: 1st WORD:Memory address at the time of trigger 2nd WORD:X resolution = 200 bit/DIV 3rd WORD:Y resolution = 25 bit/DIV 4th WORD:Y1 position standardized on the value of WORD 3 (integer v

7、alue) 5th WORD:Y2 position standardized on the value of WORD 3 (integer value) WRREF: (3 (6 (7 (w w array) 1st WORD Offset hex. (2 Kbytes) 2nd WORD length hex. (2 Kbytes) (R CR LF)WRITE REFERENZ 1/2 writes signal data into the reference store (1 or 2), from offset address (first WORD) with given len

8、gth (second WORD) Offset + length max. 2 Kbytes See RDWFM XPOS?XPOS:(w)Delivers X-POSITION setting (10 bits) w = 3FF hex.: ”right limit” w = 000 hex.: ”left limit ” (1.1: 16 Bit INTEGER value in twos complement referred to graticule center (1000 bits/DIV) (10 XPOS=(w)(R CR LF)Sets X-POSITION setting

9、 (10 bits) (1.1: (16 Bit INTEGER) YPOS?YPOS:(w)Y 1/2 POSITION Delivers CH (1 or 2) position setting (10 bits) w = 3FF hex.: Y position maximum upwards w = 000 hex.: Y position maximum downwards (1.1: 16 Bit INTEGER value in twos complement referred to graticule center (1000 bits/DIV) (10 YPOS=(w)(R

10、CR LF)Y 1/2 POSITION Sets CH (1 or 2) position setting (10 bits) (1.1: (16 Bit INTEGER) 74nderungen vorbehalten / Subject to change without notice All commands will be internally checked for any conflicts and protocoled in RETURNCODE. The following RETURNCODES (ASCII characters) have been implemente

11、d: 0 = no error 1 = syntax error 2 = data error 3 = buffer overflow 4 = bad data set 5 = adjustment error 6 = timing error (internal data transmission FC /STORE) nderungen vorbehalten / Subject to change without notice75 Instrument data field (DDF) D7D6D5D4D3D2D1D0 CH1GNDACINV1ONVOLT/DIV - Counter 0

12、-13 0000(1mV/DIV).1101(20V/DIV) CH2GNDACINV2ONVOLT/DIV - Counter 0-13 VERMODEAlt.- TRG Probe CH1: (2.00 0 = 1:1 1 = 10:1 0CHOPADDProbe CH2: (2.00 0 = 1:1 1 = 10:1 TR-SOURCE 00 = CH1 01 = CH2 1x = EXT TBA00ANA SING MODETIME/DIV Counter Analog:00hex. - 15hex.SEA:11hex 50ns/DIV - 0,5s/DIVSEA:20ms Store

13、:(30403(8hex. - 1Chex 1s500ns(8/DIV - 100s/DIV Store XY:(30605(8hex. - 1Chex 40MS100MS(8/s - 2S/s Store ROLL:(312hex. - 1Chex 50mS/s - 100S/s TBBB +/- (1=neg. Trigger- edge) B-TR0MODETIME/DIV Counter Analog:00hex. - TBA(max.11hex.) 50ns - TBA(max.20ms/DIV) Store:(30403(8hex. - TBA(max.11hex.) 1s500n

14、s(8/DIV TBA(max.20ms/DIV) HORMODECT (Compo- nents- tester) XYx10 STORE(3 0TB-MODE HM1004-2/1505-2 HM305-2 HM1507/1507-2HM404/407 000:TBATBA 001:TBA + TBB reserv. 010:TBA alt.TBB SEARCH 011:TBBDELAY TRG TRIG+/- (1=neg Trigger- edge) 0P-PNORM0Kopplung 0-7 HM1004-2/1505-2 HM305-2 HM1507/1507-2HM404/407

15、 000:ACAC 001:DCDC 010:HFHF 011:NRLF 100:LFTVLine 101:TVLineTVField 110:TVFieldLINE 111:LINE reserv. STRMODE(3REF2REF1PRE TRIGGER 000 = -75% 001 = -50% 010 = -25% 011 = 0% 100 = 25% 101 = 50% 110 = 75% 111 = 100% STOREMODE 000 = REF 001 = SGL 010 = ROL (TB=100s.50ms) 011 = ENV 100 = AVR CH2 VAR8-BIT

16、 CH1 VAR8-BIT TRSEP (98-BIT HOLD OFF8-BIT INTENS A8-BIT INT B (98-BIT 76nderungen vorbehalten / Subject to change without notice Instrument data field 1 (DDF1) D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0 TR A LEV000000XXXXXXXXXX TB A VAR000000XXXXXXXXXX X POSX (1.1 X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 XXXX

17、XXXXXX Y2 POSX (1.1 X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 XXXXXXXXXX Y1 POSX (1.1 X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 XXXXXXXXXX TR B LEV000000XXXXXXXXXX TB B VAR000000XXXXXXXXXX DEL POS000000XXXXXXXXXX Read out data field (RODDF) D15D14D13D12D11D10D9D8D7D6D5D4D3D2D1D0 CURSOR MODE 00= CH1 1= CH2 00=X 1=

18、Y 1= Trk 0dt 1=f 01= Crs On INT-ROUT CURSOR X active X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 XXXXXXXXXX CURSOR X passive X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 XXXXXXXXXX CURSOR Y active X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 XXXXXXXXXX CURSOR Y passive X (1.1 X (1.1 X (1.1 X (1.1 X (1.1 X (

19、1.1 XXXXXXXXXX (1.05 From FC-Version 1.05 (1.1 From FC-Version 1.10 (1.17 From FC-Version 1.17 (1.19 From FC-Version 1.19 (2.00 From FC-Version 2.00 (2 Analog SINGLE MODE:RES = 1 -Prepares for a trigger event STORE MODE:RES = 1 -Starts the digital acquisition anew. (Exception SINGLE Mode: Trigger ev

20、ent necessary) (3 Only in Analog / Digital Scope (4 The data will be loaded in an EEPROM. This consists of only a limited number ( 1 000 000) of program cycles. Therefore this command should not be used too often unnecessarily. (5 This function will be reset after a counter has run down (ca. 5s). Ea

21、ch further output before the end of the interval sets the counter anew and thus prolongs the time until reset. (6 The maximum interval permitted between the transmission of each trace byte is 2s, otherwise the scope will exit the remote state. (7 Valid for FC-Versions lower 1.05: For (w w) stands (w

22、,w); comma as ASCII character. For (w w array) stands (w,w:array); comma and colon as ASCII character. (8 Only HM1507 and HM1507-2 (9 Only for instruments with 2 timebases. (10 16 Bit INTEGER value in twos complement based on the graticule center (1000 bit/DIV). Ex. 1:Set Y position to graticule cen

23、terOutput: 0 dec. = 0 hex. Ex. 2:Set Y position to +1 division Output: 1000 dec. = 3E8 hex. Ex. 3:Set Y position to -1 divisionOutput: 64536 dec. = FC18 hex. nderungen vorbehalten / Subject to change without notice77 Examples Some examples, with detailed explanations regarding the command, are given

24、 below. Most of the commands are terminated with CR (ENTER)= 0Dhex and LF = 0Ahex. Also, the scope terminates each acknowledgment string with these characters. The command parameters (given in brackets) may be ASCII characters (a), or binary values (b). BELL=(a) Explanation:This command outputs the

25、tone 2. String to scope:BELL=2 CR Character sequence in hex representation: 42 45 4C 4C 3D 32 0D Answer from scope:0 CR LF Answer from scope in hex representation: 30 0D 0A CH1=(b) Explanation:This command switches the channel on, with 5mV and AC. See also byte 1 of DDF. String to scope:CH1= (52hex)

26、 CR Character sequence in hex representation:43 48 31 3D 52 0D Answer from scope:0 CR LF Answer from scope in hex representation:30 0D 0A ERRBP? Explanation:This command interrogates the status of the control tone for error. 1 means Error beep is switched on, 0 corresponds to off. String to scope:ER

27、RBP? CR Character sequence in hex representation:45 52 52 42 50 3F 0D Answer from scope:ERRBP:1 Answer from scope in hex representation:45 52 52 42 50 3A 31 78nderungen vorbehalten / Subject to change without notice RDWFM1:(ww) Explanation :Read signal trace from channel 1. Parameter 1:Start address

28、 in acquisition store = 0 dec. = (00 00)hex. Parameter 2:Number of bytes to be read = 2048 = (08 00) hex. When transmitting word data, note that the low byte must be output first. It is possible to read only a part of the acquired signal by transmitting other values for the start address and the num

29、ber of bytes to read. String to scope:RDWFM1:(00hex)(00hex)(00hex)(08hex) CR Character sequence in hex representation:52 44 57 46 4D 31 3A 00 00 00 08 0D Answer from scope in hex representation:52 44 57 46 4D 31 3A 08 00 00 08 XX XX . . XX ;(2048 Byte XX) WFMPRE? String to scope:WFMPRE? Answer from

30、scope in hex representation:57 46 4D 50 52 45 3A XX XX C8 00 19 00 YY YY ZZ ZZ Explanation:Byte 1 to 7:WFMPRE: Byte 8 5mV deflection sensitivity; DC input coupling; probe 1:1; 1kHz calibration; probe in the calibration socket; trigger source - channel 1; AC Trigger coupling; Timebase A set to 200s;

31、analog mode. A positive square wave signal with an amplitude of 4 div. can be seen on the oscilloscope display. nderungen vorbehalten / Subject to change without notice79 String to scope:TRGVAL? Answer from scope in hex representation:54 52 47 56 41 4C 3A D0 07 30 F8 D0 07 XX XX Explanation:Byte 1 t

32、o 7:String TRGVAL: Byte 8 and 9:Positive peak value (signal) Byte 10 & 11:Negative peak value (signal) Byte 12 & 13:Arithmetic mean value (signal) Byte 14 & 15:Reserved (value undefined) Positive and negative peak values are integer values referred to the mean value with the weighting of 1000/div. T

33、hen follows:07D0 hex. = +2000 decimal F803 hex. = - 2000 decimal Mean value:Um = 2000/1000 * 5mV = 10mV positive peak value: Upp+ = 2000/1000 * 5mV + Um = 20mV negative peak value:Upp- = -2000/1000 * 5mV + Um = 0mV Since the trigger amplifier is not calibrated there can be a deviation from the value

34、s. 80nderungen vorbehalten / Subject to change without notice Remote control with the Term9X program of NORTON COMMANDER 1. Settings 1.1 term90.exe Under Settings Interface: Port:Your free serial port, e.g. COM2. Baud rate: recommended 19200. Data bits: 8 BITS Parity: None Stop bits: 2 BITS Data exc

35、hange: Xon/Xoff to off. RTS/CTS/ to on. Under Settings Terminal mark the ANSI . Under Settings mark the option Echo. 1.2 term95.exe Under Settings Driver mark the option Standard. Under Settings Line.: Port: Your free serial port, e.g. COM2. Baud rate: Recommended 19200. Data bits: 8 BITS Parity: No

36、ne Stop bits: 2 BITS Data exchange: Xon/Xoff to off. RTS/CTS/ to on. Under Settings Terminal Emulation mark the option ANSI. Under Settings Terminal settings mark the option Echo. 2. Remote control The transmission can be started after all settings have been correctly set,. Remote On:Enter one after

37、 the other a SPACE and ENTER. The instrument goes into remote mode, which is evident from the Remote LED. Now you can enter any desired command such as, for example, vers?. Example: Switch on channel 2 of the instrument and at the same time set it to 5mV. Enter ch2=, press the key Alt Gr and simultaneously enter from the number keyboard one after the other the numbers 0,1 and 8. After releasing the Alt Gr key, the instrument will be set. The RETURNCODE will be displayed behind the transmitted command. The value 0 (Alt Gr 000) will not be transmitted