Heathkit HWA 5400 1 Schematic

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Heathkit HWA 5400 1 Schematic

Extracted text from Heathkit HWA 5400 1 Schematic (Ocr-read)


Page 1

Page 17

Ill-O.

LOTHIS SYMBOL INDICATES A POSITIVE nc vomcz
MEASURED mm A HIGH IMPEDENCE voummn mom
THE POINT INDICATED to CHASSIS caouun WITH THE
TRANSCEIVER POWER TURNED 0N.

5.I:] THIS SYMBOL INDICATES AN Ac VOLTAGE.

6. V THIS SYMBOL INDICATES A CIRCUIT BOARD GROUND.
7. £- THIS SYMBOL INDICATES A CHASSIS GROUND.

NOTES:
1. COMPONENT NUMBERS ARE IN THE FOLLOWING GROUPS. 3. D nus SYMBOL mmcnzs A man) couuacnon TO A
1-99 CHASSIS momma PTARETi. I n o no Rm '0"-
IoI-m mus momma OH H c c R60 3 A . ,
201-299 mus NIoUNTEn ON THE DISPLAY CIRCUIT BOARD. - O Tcwjpfmfifl mum 55 WW
301-399 mus momma oN THE Rscuunoa cmcun BOARD. '
2. All RESISTORS ARE llz-IIAn, 51 TOLERANCE UNLESS 10' * 21,512?" "EATK m" REPLCEMNT "5
omsnwls: NOTED. assmons VALUES ARE IN oIINIS '
""1 11. REFER TO "CIRCUIT BOARD X-RAY VIEWS AND 10m,
A COMPONENTS wens MOUN
3. CAPACITORS LESS THAN 1 ARE IN ur IMICROFARADSI. AIL Lgfi'figgfigsfis #3315: mm LOCATION or
OTHER CAPACITORS ARE IN PF (PICOFARADS) UNLESS PARTS.

OTHERWISE NOTED.