Advanced UP/DOWN counter K8035 ILLUSTRATED ASSEMBLY MANUAL H8035IP-1 Total solder points: 271 Difficulty level: beginner 1 2 3 4 5 adv
10 When all connections are made, the four LED displays will light up and the Kit number will appear “8 0 3 5” after which following messages appear :
11 Counting pulses can be applied to the unit in two different ways : 1. + 3V to 12V pulses with respect to ground. 2. Use the + 5V connection for
12 1. COUNTER SETTINGS FUNCTION DIP SWITCH OFF ON Decade counter 1 Modulo 60 : hh:mm (23.59) 2 1 Modulo 60 : mm:ss. (59.59) 1 & 2 2. DE
13 PCB 20. PCB
14 21. Schematic diagram. Schematic diagram DY1a14b13c11d5e4f2g1DP10A3A12DY4SA39-11EWAR1...R8: 150 +5VDY4DY3DY2DY1ABCDEFT1BC557T2BC557T3BC557BC557R
15 GNDX1 4.194304 MHzC118pC218pC3100nGNDD11N4007C8470µGNDGNDC4100nC5100nGND GNDGNDC910µGNDVDD12348765SW5SW DIP-4D4 D5 D6D3R1310KVDD4x 1N4148T6BC547R18
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2 Features: Count up or down. Count input trough on-board push buttons or by external pulses. Display modes : Normal or time (hh:mm and mm:ss).
3 Assembly hints 1. Assembly (Skipping this can lead to troubles ! ) Ok, so we have your attention. These hints will help you to make this project s
4 Assembly hints 1.3 Soldering Hints : 1- Mount the component against the PCB surface and carefully solder the leads 2- Make sure the solder j
5 R9 : 10K (1-0-3-B) R10 : 10K (1-0-3-B) R11 : 10K (1-0-3-B) R12 : 10K (1-0-3-B) R13 : 10K (1-0-3-B) R14 : 2K2
6 Construction IC1 : 28P DY1 : 14P DY2 : 14P DY3 : 14P DY4 : 14P 7. IC sockets. Watch the posi-tion of the notch! C1
7 Construction C8 : 470µF C9 : 10µF 15. Electrolytic capacitor. Watch the polarity ! C... 10p 12. Connector X1: 4,1943… MHz. 14
8 Connection 18. Connection 1 2 3 4 5 6 78 9 10 1 GND 6 GND 2 + VA 7 + 5V 3 + VB 8 Count Down input (B) 4 GND 9 Count Up input (A) 5 E. OUT 10 GND 1
9 Fig. 1.0 Hook-up when using an adapter Hook-up when using a transformer K803552134679810+-ADAPTORE. OUTRELAYCount UpCount Down+ 5VFig. 2.0 10987654
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