Heathkit GC 1197 Manual

Page 1

HEATHKIT®

for the

DIGITAL FLOOR CLOCK
DIGITAL SHELF CLOCK
Model GC-1195/GC-1197

595-1886-02

HEATH COMPANY - BENTON HARBOR, MICHIGAN

Page 2

Price $2.00

Heathkit® Manual

for the

DIGITAL FLOOR CLOCK
DIGITAL SHELF CLOCK
Model GC-1195/GC-1197

595-1886-02

DIGITAL FLOOR CLOCK
MODEL GC-1195

(floor model pictured]

DIGITAL SHELF CLOCK
MODEL GC-1197

Copyright © 1976

Heath Company

H E AT H c O M PA N Y All Rights Reserved
BENTON HARBOR, MICHIGAN 490 2 2

Printed in the United States 0! America

Page 6

-______ 9° 5

ASSEMBLY NOTES

TOOLS

You will need these tools to assemble your kit.

tONG-NOSE

STRIPPERS
/ l/3"&l/4"BLADF

PLIERS
mus 05316:??? SCREWDRIVERS HlAlHKll
SOL DER I NC
IRON
OTHER HELPFUL , ¢

TOOLS __)

DESOLDERING
BULB

nut STARIER SOLDER: -
(MAY at SUPPLIED BRAID DRWERS
wum KITI

*TO REMOVE SOLDER FROM CIRCUH CONMCIIONS.

PENCIL
SOLDERING IRON

(25 l0 40 WAHS'

Ln----------

ASSEMBLY
4. A separate "Illustration Booklet contains il-
1. Follow the instructions carefully. and read the lustrations (Pictorials. Details. etc.) that are too
entire step before you perform the operation. large for the Assembly Manual. When the Man-
ual says to refer to a certain Pictorial or Detail
2. Position all parts as shown in the Pictorials. and that illustration is not on the same page. or
on the page across from it. refer to the Illustra-
3. The illustrations in the Manual are called Picto- tion Booklet."
rials and Details. Pictorials show the overall op-
eration for a group of assembly steps: Details Keep the Illustration Booklet"with the Assem-
generally illustrate a single step. When you are bly Manual. The illustrations in it are arranged
directed to refer to a certain Pictorial "for the in Pictorial number sequence.

following steps." continue using that Pictorial
until you are referred to another Pictorial for 5. Solder a part or a group of parts only when you
another group of steps. are instructed to do so.

Page 9

Page 8
l-HE: A'I'HK.I'1"

A GOOD SOLDER CONNECTION

'-_-_---_-_-_---1

I
/

SOLDtR FLOWS OUTWARD , I
AND GRADUAILY BLENDS 4 /
WIIHiHEFOILANDIHE ,,./ SOLDERING

LEAD. ////' [RON
/,;/K POSIIIONED
1 CORRECILY

FOIL

I When both the lead and the circuit board foil are heated at the I
| same time. the solder will flow onto the lead and the foil I
I evenly. The solder will make a good electrical connection I

between the lead and the foil. I

L.._......._....._..............................._....

POOR SOLDER CONNECTIONS

F-_-__-_-_-_----_--_--_--_---

SOLDER DOES NOT HOW

/
omo LEAD. A DARK ROSIN BURN) / ,
I BEAD SURROUNDS AND IN- swam / -/
SULATES THE LEAD FROM ~ ,)_ SOLDERING
THE CONNECIION. ,, , IRON

/ QMPOSITIONED

INCORRECTLY

\\
\\

FOIL

will not flow onto the lead as shown above To cor-

rect. reheat the connection and. if necessary. apply a

small amount of additional solder to obtain a good
l-connection.

I
I
: When the lead is not heated sufficiently. the solder
l

4
SOLDER APPEARS 10 now I )l. SOLDERING
IRON
INWARD AND SIT ON TOP / 0/
OF FOIL //, POSITIONED
(91/ INCORRECTLY
, BURNED
FOIL ,, , ROSIN

NW

\ \.'~ ~\'._\
-; xxngxkxxg yfi x W. \xx\

When the foil is not heated sufficiently the solder will
blob on the circuit board as shown above. To correct.
reheat the connection and. if necessary. apply a small
amount of additional solder to obtain a good connec-
tion.

SOLDER CONNECTIONS TO WATCH OUT FOR

The following photographs show examples of the types of bad
solder connections that are the most common cause of trou-
ble. If you locate any of these bad solder connections in your

kit. correct them as instructed.

Here, hot solder has been dropped onto the foil
and the solder connected or bridged [or crossed)
three foils. To correct. hold the circuit board
above the soldering iron and reheat the solder.
As the solder melts. it will flow down the iron.

NOTE: Solder that bridges two connections on
the SAME FOIL is alright and should not be
corrected.

Here. solder has flowed along a lead and bridged
to another foil. To correct. hold the circuit board
above the soldering iron and reheat the solder.
As the solder melts, it will flow down the iron.
Then cut off the excess lead lengths. PROTECT
YOUR EYES.

J

Page 10

__.~_. --.

~-

NOTE: When a bare wire is called for. use

Page 9
_|HEATHKIT"

NOTE: When you install a diode. always
match the banded end at the diode with the
band mark on the circuit board.

(X) 0102: 3A1 diode (#5742).

(X) 0101: SM diode (#5742).

(X) 0103: 1N4002 diode (#57435).

the black solid wire. Cut it to the specified a a
length and remove the insulation. (x) 0104; "002 diode (#5755;
=- "_ + h +
96' 1 00 0 (WWWWWW- 6% ( l Solder the leads to the toll and cut off
= f the excess lead lengths.
1"} R101: 12021 (brown-redlrod). g % NOTE: tn the following step. install each
- ' 5 socket strip as lollows:
( )1"t>ere wire atJ. é %
é
_ _ .A. is , g 1. Be sure the socket is seated firmly
23):: nggggzqmgsigé? 3: lF % 0 g 0 against the circuit board: then turn the
/ ? Ck) circuit board over and solder one pin
N0 I THE LINE FREQUENCY iN YOUR AREA Q g g
/r is 50 Hz 0 g (b at each end at the socket strip.
H - v <3 , 00
/ l ) bare wire at J. g ( ) R104: 3300 n (ortmge-orange-red). K) . \_ g sure it is still seated firmly against the
+ g circutt board. Then solder the remain-
t 't 5 in Ins
( mice: 68 k0 (mummy-orange). g 9 P -
I _
/ 9 '\ '
(XWMWW- w 0 mmxwmmxs:
(X %- *W the Jns to the toil '
) R103: 950 n. 1%. 4 '
, +W q} t
(Ximos: 100 kn (brown-black-yellow). i Q 90 03. 53 *9 (b'°°g'°V°'°"9°l-
(X) 1.. bare wire at J uu (X) 8107: 15 kt) (brown-green-orange).
.. . @W ( i Solder the leads to the toil and cut otl
(X) 1 here 1' at J' X the excess teed lengths.
Solder the leads to the toil and cut all
the excess lead length! \
PICTORIAL 1-2
0 y. x y, 1 (menu) T 5|! 4| 1 5L 1 T J
us an we we A . _ . . . _ A L L L A A L 1 . . A 4 l
l 7 l 1 L r r l i7 Fv l l v J] -IL I V 1 [ ' L r I L' 1 T ' it T
O I t (can) a e 4 s e 7 a e to n 13 to as to t1