Heathkit-IO-4205-Manual 电路图 维修手册.pdf

《Heathkit-IO-4205-Manual 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Heathkit-IO-4205-Manual 电路图 维修手册.pdf（208页珍藏版）》请在收音机爱好者资料库上搜索。

1、HEATHKIT MANUAL 5 Megahertz Dual Trace Oscilloscope Model 10-4205 595-2072 . . .:;_. 7 . : .: . . . . , ,_ ;:. .: . .: . :.:.- 0 L-;- HEATH COMPANY BENTON HARBOR, MICHIGAN RadioFans.CN 收音机爱 好者资料库 HEATH COMPANY PHONE DIRECTORY The following telephone numbers are direct lines to the departments listed

2、: Kit orders and delivery information . . (616) 982-3411 Credit . . (616) 982-3561 Replacement Parts . . . . . . . (616) 982-3571 Technical Assistance Phone Numbers 8:00A.M. to 12 P.M. and 1:00 P.M. to 4:30P.M., EST, Weekdays Only RtC, Audio, and Electronic Organs . . . (616) 982-3310 Amateur Radio

3、. . . . . . (616) 982-3296 Test Equipment, Weather Instruments and Home Clocks . . . . . . . (616) 982-3315 Television . . . . . . . (616) 982-3307 Aircraft, Marine, Security, Scanners, Automotive, Appliances and General Products . . (616) 982-3496 Computers . . . . . . . . . . (616) 982-3309 YOUR H

4、EATHKIT 90 DAY LIMITED WARRANTY If you are not satisfied with our service- warranty or otherwise-or with our products, write directly to our Director of Customer Services, Heath Company, Benton Harbor, Michigan 49022. He will make certain your problems receive immediate, personal attention. Our atto

5、rney, who happens to be quite a kitbuilder himself, insists that we describe our warranty using all the necessary legal phrases in order to comply with the new warranty regulations. Fine. Here they are: For a period of ninety (90) days after purchase, Heath Company will replace or repair free of cha

6、rge any parts that are defective either in materials or workmanship. You can obtain parts directly from Heath Company by writing us at the address below or by telephoning us at (616) 982-3571. And well pay shipping charges to get those parts to you-anywhere in the world. We warrant that during the f

7、irst ninety (90) days after purchase, our products, when correctly assembled, calibrated, adjusted and used in accordance with our printed instructions, will meet published specifications. If a defective part or error in design has caused your Heathkit product to malfunction during the warranty peri

8、od through no fault of yours, we will service it free upon proof of purchase and delivery at your expense to the Heath factory, any Heathkit Electronic Center (units of Schlumberger Products Corporation). or any of our authorized overseas distributors. You will receive free consultation on any probl

9、em you might encounter in the assembly or use of your Heathkit product. Just drop us a line or give us a call. Sorry, we cannot accept collect calls. Our warranty does not cover and we are not responsible for damage caused by the use of corrosive solder, defective tools, incorrect assembly, misuse,

10、fire, or by unauthorized modifications to or uses of our products for purposes other than as advertised. Our warranty does not include reimbursement for customer assembly or set-up time. This warranty covers only Heathkit products and is not extended to allied equipment or components used in conjunc

11、tion with our products. We are not responsible for incidental or consequential damages. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights, and you may a

12、lso have other rights which vary from state to state. HEATH COMPANY BENTON HARBOR, MI. 49022 oROOo ; : INTRODUCTION The Heathkit Model 10-4205, 5 MHz, Dual-Trace Os- cilloscope is a compact, versatile, easy-to-build, elec- tronic instrument that you can use to study the waveforms in electronic circu

13、its. You can also use it to measure frequency, and AC or DC voltages. The DC to 5 MHz bandwidth and the excellent input sensitiv- ity of the vertical amplifiers allow you to use this Oscilloscope for nearly all types of waveform applica- tions. The triggered horizontal sweep circuit and the many oth

14、er outstanding features provide accuracy and capabilities that are usually found only in higher priced oscilloscopes. Among the many other features this Oscilloscope of- fers are: A special TV position on the trigger selector. This allows low frequencies to pass while rejecting high frequencies, thu

15、s making it Page 3 easier to trigger on the vertical frequency of a TV set. A 10 to 1 attenuation circuit that can be used for signals applied to the external, horizon- tal input jack. Accurately calibrated vertical attenuators with variable controls. A calibrated time base (seven time base selectio

16、ns, variable within each selection). These features, along with the attractive styling, will make this Oscilloscope a welcome asset to the laboratory, service shop, or the ham shack. Page 4 UNPACKING Inside the shipping carton was the box stamped PKl which contained this Assembly Manual. With this b

17、ox removed from the shipping carton, you will find bags stamped PACK 2 through PACK 4. The Manual will refer to these areas as packs. You will be di- rected to open each of these packs as it is needed. All other parts in the shipping carton will be consid- ered the final pack. Caution: Do not remove

18、 any parts from their bags or the final pack until they are specifically called for in a Parts List in the Manual. Each assembly section of the Manual contains its own Parts List and Step-by-Step Assembly instruc- tions. At the beginning of each Parts List, you will be instructed to open one of the

19、packs. You will also be directed, in some Parts Lists, to remove certain parts from the final pack. Page 5 ;allllll;ll:ll=u . . ASSEMBLY NOTES TOOLS You will need these tools to assemble your kit. PLIER S DIAGONAL CUTTERS - HEATHKI T SOLDERING I RON OTHER HELPFU TOOLS / NUT STARTER 1IMAY BE SUPPLIED

20、 I WITH KI TI I I DE SOLDERING BULB* DESOLDER I NG BRAID* OR PENCIL SOLDERING I RON 125 TO 40 WATTS! I * TO REMOVE SOLDER FROM CIR CUIT CONNECTIONS. - ASSEMBLY 1. 2. Follow the instructions carefully. Read the en- tire step before you perform each operation. The illustrations in the Manual are calle

21、d Picto- rials and Details. Pictorials show the overall op- eration for a group of assembly steps; Details generally illustrate a single step. When you are directed to refer to a certain Pictorial for the following steps, continue using that Pictorial until you are referred to another Pictorial for

22、another group of steps. 3. 4. 5. Most kits use a separate Illustration Booklet that contains illustrations (Pictorials, Details, etc.) that are too large for the Assembly Manual. Keep the Illustration Booklet with the As- sembly Manual. The illustrations in it are ar- ranged in Pictorial number sequ

23、ence. Position all parts as shown in the Pictorials. Solder a part or a group of parts only when you are instructed to do so. Page 6 6. Each circuit part in an electronic kit has its own component number (R2, C4, etc.). Use these numbers when you want to identify the same part in the various section

24、s of the Manual. These numbers, which are especially useful if a part has to be replaced, appear: In the Parts List, At the beginning of each step where a component is installed, In some illustrations, In the Schematic, In the section at the rear of the Manual. 7. When you are instructed to cut some

25、thing to a particular length, use the scales (rulers) pro- vided at the bottom of the Manual pages. SAFETY WARNING: Avoid eye injury when you cut off excess lead lengths. Hold the leads so they cannot fly toward your eyes. SOLDERING Soldering is one of the most important operations you will perform

26、while assembling your kit. A good sol- der connection will form an electrical connection be- tween two parts, such as a component lead and a circuit board foil. A bad solder connection could pre- vent an otherwise well-assembled kit from operating properly. It is easy to make a good solder connectio

27、n if you follow a few simple rules: 1. 2. Use the right type of soldering iron. A 25 to 40-watt pencil soldering iron with a 1/8 or 3/16 chisel or pyramid tip works best. Keep the soldering iron tip clean. Wipe it often on a wet sponge or cloth; then apply solder to the tip to give the entire tip a

28、wet look. This process is called tinning, and it will protect the tip and enable you to make good connections. When solder tends to ball or does not stick to the tip, the tip needs to be cleaned and retin- ned. PARTS Resistors will be called out by their resistance value in 0 (ohms), kO (kilohms), o

29、r MO (megohms). Certain types of resistors will have the value printed on the body, while others will be identified by a color code. The colors of the bands and the value will be given in the steps, therefore the following color code is given Page 7 = OR 1/4-WATT =fllm-=OR 1/2-WATT for information o

30、nly. Multiplier BANDS: 1 2 3 / /Tolerance 1-WATT *Note Wide Space =-= 2-WATT Band 1 Band 2 Band 3 (if used) Multiplier Resistance 1st Digit 2nd Digit 3rd Digit Color Digit Color Digit Color Black 0 Black 0 Black Brown 1 Brown 1 Brown Red 2 Red 2 Red Orange 3 Orange 3 Orange Yellow 4 Yellow 4 Yellow

31、Green 5 Green 5 Green Blue 6 Blue 6 Blue Violet 7 Violet 7 Violet Gray 8 Gray 8 Gray White 9 White 9 White Capacitors will be called out by their capacitance value in JLF (microfarads) or pF (picofarads) and type: ceramic, Mylar*, electrolytic, etc. Some capacitors may have their value printed in th

32、e following man- ner: Digit Color Multiplier 0 Black 1 1 Brown 10 2 Red 100 3 Orange 1,000 4 Yellow 10,000 5 Green 100,000 6 Blue 1,000,000 7 Silver 0.01 8 Gold 0.1 9 EXAMPLES: 151K =:= 15 X 10 = 150 pF 759 = 75 X0.1 = 7.5 pF Tolerance Color Tolerance Silver :!:10% Gold :!: 5% Brown :!: 1% First dig

33、it of capacitors value: 1 NOTE: The letter R may be used at times to signify a decimal point: as in: 2R2 = 2.2 (pF or JLF). Second digit of capacitors value: 5 _ _, Multiplier: Multiply the first tV-GM) tcf-i I R 05 AI (p-1 5q A1 6-279 3 2.7 n (Red-Viol-Gold) R179, R181, R182 A1 6-100 20 10 n (Brn-B

34、ik-Bik) R124A, R124B, R131A, R131B, R142A, R142B, R145A, R145B, R157A, R157B, R158A, R158B, R159A, R159B, R164A, R164B, R166, R168, R174, R175 A1 6-220 4 22 n (Red-Red-Bik) R147A, R147B, R148A, R148B Some parts are marked with a 171- or 172- pack- aging number. These numbers are used for packaging p

35、urposes only and do not appear in the Manual Parts List. To order a replacement part, always include the PART NUMBER. Use the Parts Order Form furnished with the kit. If one is not available, see Replacement Parts inside the rear cover. For prices, refer to the separate Heath Parts Price List. KEY H

36、EATH QTY. DESCRIPTION CIRCUIT No. Part No. Comp. No. Resistors (Contd.) A1 6-330 33 n (Org-Org-Bik) R1A, R1B, R2A, R2B, :ftj:()SA, R4059; R106A, R106B A1 6-390 2 39 n (Org-Wht-Bik) R151A, R151B A1 6-470 2 47 n (Yei-Vioi-Bik) R134A, R134B A1 6-820 2 82 n (Gry-Red-Bik) R144A, R144B A1 6-101 6 100 n (B

37、rn-Bik-Brn) R161A, R161B, R162A, R162B, R171, R172 A1 6-201 2 200 n (Red-Bik-Brn) R117A, R117B A1 6-221 8 220 n (Red-Red-Brn) R111A, R111B, R113A, R113B, R114A, R114B, R183, R184 A1 6-271 2 270 n (Red-Vioi-Brn) R108A, R108B A1 6-331 2 330 n (Org-Org-Brn) R116A, R116B A1 6-391 6 390 n (Org-Wht-Brn) R

38、135A, R135B, R139A, R139B, R153A, R153B A1 6-471 2 470 n (Yei-Vioi-Brn) R136A, R136B A1 6-511 2 510 n (Grn-Brn-Brn) R115A, R115B A1 6-751 2 750 n (Vioi-Grn-Brn) R163A, R163B Page 9 f1%f#fB+ KEY HEATH QTY. DESCRIPTION CIRCUIT KEY HEATH QTY. DESCRIPTION CIRCUIT No. Part No. Comp. No. No. Part No. Comp

39、. No. Resistors (Contd.) Capacitors, Ceramic (Contd.) A1 6-102 20 1000 n (8rn-81k-Red) R104A, R1048; 81 21-141 1 .0033 JLF C131 R133A, R1338, 81 21-27 4 .005 JLF C107A, C1078, R141A, R1418, C135, C136 R146A, R1468, 81 21-47 3 .01 JLF C109A, C1098, R149A, R1498, C122 R156A, R1568, 81 21-31 .02 JLF C1

40、24 R165, R167, 81 21-199 2 .1 JLF C114A, C1148 R185, R186, R187, R188, Electrolytic R191, R192 A1 6-122 2 1200 n (8rn-Red-Red) R155A, R1558 82 25-115 8 10 JLF C111A, C1118, A1 6-182 2 1800 n (8rn-Gry-Red) R137A, R1378 C113A, C1138, A1 6-272 4 2700 n Red-Viol-Red) R118A, R1188, C123, C132, R122A, R12

41、28 C133, C134 A1 6-332 4 3300 n (Org-Org-Red) R119A, R1198, 83 25-117 4 100 JLF C118A, C1188, R121A, R1218 C119A, C1198 A1 6-912 2 9100 n (Wht-8rn-Red) R103A, R1038 B3 25-160 3 250 JLF C125, C126, A1 6-103 4 10 kfi (8rn-81k-Org) R109A, R1098, C127 R154A, R1548 A1 6-153 2 15 kfi (8rn-Grn-Org) R132A,

42、R1328 Trimmer A1 6-223 22 kfi (Red-Red-Org) R169 A1 6-913 2 91 kfi (Wht-8rn-Org) R102A, R1028 84 31-56 4 1.5-20 pF C101A, C1018, A1 6-104 2 100 kfi (8rn-81k-Yel) R107A, R0178 C103A, C1038 A1 6-914 2 910 kfi (Wht-8rn-Yel) R101A, R1018 84 31-54 2 4-40 pF C102A, C1028 84 31-52 4 8-60 pF C104A, C1048, C

43、115A, C1158 Other Resistors 85 31-77 2 80-400 pF C106A, C1068 6-1801- /t.j A2 4 1800 n (1.8 k) watt, R123A, R1238, IZ. 1% (8rn-Gry-81k-8rn) R127A, R1278 Other Capacitors A2 6-4320-11 4 432 n 1 /8-watt, 1% R125A, R1258, (Yei-Org-Red-81k) R126A, R1268 86 27-28 2 .1 JLF Mylar C1, C2 A3 1-19-1 220 n, 1-

44、watt, 10% R173 Red-Red-8rn) A4 5-11-2 15 kfi, 2-watt, 10% R176 (8rn-Grn-Org) DIODES AS 3-55-5 2 2000 n (2 k), 5-watt R177, R178 C1 56-56 1 N4149 geA. oe+So CAPACITORS (o 9Hl2A., 0192; OLDER IN G , IRON ,; POSITIONED CORRECTLY I I I I I When you heat the lead and the circuit board foil at the same I

45、time, the solder will flow evenly onto the lead and the foil. I 1 The solder will make a good electrical connection between I Lt !i _ - POOR SOLDER CONNECTIONS -, I SOLDER DOES NOT FLOW / / I ONTO LEAD. A DARK ROSIN , ,) ,SOLDERING I BEAD SURROUN DS AND IN-/ , SOLDER APPEARS TO FLOW /,.-._ IR ON I S

46、ULATES THE LEAD FROM ROSIN , r-l I I : I I I I I I I I I I I I PICTORIAL 1-3 3 4 I I I I I I I I I I I I I I I I I I I 8 10 , 12 CONTINUEO IDENTIFIC DRAWl I I NOTE: When a wire is called for in a step, cut the brown wire to the specified length. Then remove 1/4 of insulation from each end. 5 I 2-1/4

47、 Brn wire. D104B: 1N4149 diode (#56-56). D103B: 1N4149 diode (#56-56). R118B: 2700 !l (Red-Viol-Red). R126B: 432 .0, 1% (Yel-Org-Red- Blk). R125B: 432 .0, 1% (Yel-Org-Red- Blk). R124B: 10 !l (Brn-Blk-Blk). R127 A: 1800 .n (1.8 k). 1% (Brn- Gry-Blk-Brn). /1 R123A: 1800 !l (1.8 k), 1% (Brn- Gry-Blk-Brn). / Solder the leads to the foil and cut the excess lead lengths. R122A: 2700 !l (Red-Viol-Red). R136A: 470 .n (Yel-Viol-Brn). nP, n rnr the