Heathkit GC 1000 H Schematic 2

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HEATHKIT®
MOST ACCURATE CLOCK
MODEL GC-1000-H

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NOTES:
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1. COMPONENT NUMBERS ARE IN THE FOLLOWING GROUPS.

1- 99 PARTS ON THE CABINET.
101-199 PARTS ON THE DISPLAY CIRCUIT BOARD.
201-295 PARTS ON THE MAIN DECODER CIRCUIT BOARD.
3017399 PARTS ON THE RECEIVER CIRCUIT BOARDI
401-499 PARTS ON THE TONE DECODER CIRCUIT BOARD.
501-502 PARTS ON THE TEST CIRCUIT BOARD.
MAIN
CIRCUIT

2. ALL RESISTORS ARE 1/4-WATT. 5%. UNLESS STATED OTHERWISE.
BOARD

RESISTORS VALUES ARE IN OHMS (K=IODO.M:I.OD0.000).
TONE

DECODER
CIRCUIT
BOARD

11. CAPACITORS ARE IN ,uF (MICROFARADS) UNLESS STATED
OTHERWISE.

4. 0 THIS SYMBOL INDICATES A DC VOLTAGE MEASURED
WITH A HIGH IMPEDANCE INPUT VDLTMETER FROM
THE POINT UNDICATED TO CIRCUIT BOARD GROUND.

S. E] THIS SYMBOL INDICATES A CIRCUIT BOARD WIRE
CONNECTION POINT.

6- v THIS SYMBOL INDICATES A CIRCUIT BOARD GROUND.

7. REFER TO THE "X-RAY VIEWS FOR THE PHYSICAL LOCATION

or PARTS,
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I I SAFETY. REPLACE THEM ONLV wrru PARTS or THE SAME
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Page 2

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' RECEIVER CIRCUIT BOARD

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