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Wrap
Text File
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1986-06-22
|
4KB
|
65 lines
4-20pf Var
+-----)|---------+
| |
GND || |
+---||||------+---+----+ 5ea 1N4148
| || 32768Hz | |
| /20M | 5V---|<|-----|<|---+
+---)|---GND \ | 2 +---------+ 24 |
| 10pf / +---+ +----+--|<|----+----|<|---+
| | 3 | | V | G | |
+-------/\/\/-----+--------+ MC14 | B +---)|--N | /
390k 17 | 6818 | B | 1uf D | \ 560
DS---------+ | | +--+ /
14 | [C8] | +--|<|--+ | |
AS---------+ | | | | [10]
18 +-----+ 2 11 | | +-/\/\/-+ | 12v
D7---------+ +---------------+ | 100k | |
17 |74LS | 3 10 | | 18 | |
D6---------+ 245 +---------------+ +------+-----+ |
16 | | 4 9 | | 22 | G |
D5---------+ +---------------+ +------+--)|---N |
15 |[B8] | 5 8 | | 1uf D |
D4---------+ +---------------+ | |
14 | | 6 7 | | 20 |
D3---------+ +---------------+ +----- GND | +
13 | | 7 6 | | ---------
D2---------+ +---------------+ | ------- 4 CELL
12 | | 8 5 | | --------- NICAD
D1---------+ +---------------+ | -------
11 | | 9 4 | | --------- 5 VOLTS
D0---------+ +---------------+ | -------
| | | | |
19 | | 1 15 | | 13 |
SEL*------O| +-------+-------+ |O-----------+ GND
+-----+ | +---------+ |
BRW ---------------------+ |
+-------)-------+
74LS04 [A6] O | |
3 |\ 4 SEL 1 12 +-----+ 9 | |
SEL*----| >O-------+ GND-----+ +----+ |
|/ 2 +--- | | |
LDS----------------+ \ 6 11 |\ 10 AS 11| | 8 |
4 | |O------| >O--------|> |O---+ |
A1-----------------+ / |/ +-----+ | |
1 |\ 2 5 +--- O | |
BRW-----| >O-------+ | | |
|/ VBB | |
74LS20 [A7] | |
2/2 74HC | [A8] |
13 74 | |
5V---------+ O 4 |
12 +--- 2 +-----+ 5 |
SEL----------------+ \ 8 9 |\ 8 GND-----+ +----+
10 | |O--+---| >O----DS | | NOTE:
LDS----------------+ / | |/ 3 | | 6 chips at
5 |\ 6 9 +--- +-----------------------|> |O- A8 and C8
A1------| >O-------+ +-----+ powered
|/ O 1 from VBB
| not from
+---[53] 5v sup
RES*