Component Location Diagram; Schematic Diagram; Section Vii Circuit Diagrams - HP 6236A Operating And Service Manual

SECTION VII
CIRCUIT DIAGRAMS
7-1 COMPONENT LOCATION DIAGRAM
7-3 SCHEMATIC DIAGRAM
7-2 The component location diagram for power supply
Models 6236A and 6237 A is given below. The illustration
shows the physical locations and reference designations of
parts mounted on the printed circuit card. (Notall parts
are used in both models.)
7-4 Figure 7-1 is a combined schematic diagram of the
6236A and '6237A. The test points (circled numbers) shown
on the schematic correspond to those on the component
location diagram and in the troubleshooting procedure in
Section V. The tinted areas on the schematic indicate
components and jumpers used in one model only.
Models 6236A and 6237A, Componen;t Locations
II. PIN LOCATIONS FOR TRANSISTORS ARE SHONN BELOW:
(TOP VIEWS)
12. PIN LOCATIONS FOR INTEGRATED CIRCUITS AND THE RESISTOR NETWORK ARE
SHOWN BELOW:
SCHEMATIC NOTES
I. ALL COMPONENTS ARE LOCATED ON P.C. BOARD, UNLESS OTHERWISE INDICATED.
2.
t
DENOTES CHASSIS MOl.tITED COMPONENTS.
3. - - - - - DENOTES CONSTANT VOLTAGE FEEDBACK PATH.
4. - - - DENOTES CURRENT LIMIT FEEDBACK PATH.
5. ALL RESISTORS IN OHMS, I/BW 1%, UNLESS OTHERWISE INDICATED.
6. THE SQUARE PLATED PADS ON THE P.C. BOARD INDICATE ONE OF THE FOLLOWING;
A.PIN
1
OF AN I.C. OR TRANSFORMER.
B. POSITIVE END OF A POLARIZED CAPACITOR.
C. CATHOOE OF A DIODE OR EMITTER OF A TRANSISTOR.
7.
IN RESISTOR NETWORK Zi: Z1-J AND ZI-K ARE MATCHED TO WITHIN 1%, AND
Z1-L AND Z1-M ARE MATCHED TO WITHIN 0.5% AND TRACK WITHIN ±50 PPM/oC.
8. FOR l00V OR 120V OPERATION USE A 2A FUSE, HP PART NO. 21' 0-0002; FOR
220V OR 240V OPERATION USE A 1A FUSE, HP PART NO. 211 0 - 0001.
9. THE LOCATION AND PART NO. OF R46 IS THE SAME FOR MODELS 6236A AND
6237A BUT ITS ORIENTATION ON THE BOARD DIFFERS.
'0. THE TINT AREAS ON THE SCHEMATIC INDICATE COMPONENTS AND JUMPERS
THAT ARE USED IN ONE MODEL ONLY.
7-1
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(TOP VIEWS)
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PL-5
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TO-5