INTERNATIONAL  COMPUTERS  LIMITED
MLADOST ZAGREB, CROATIA, (YUGOSLAVIA)

RUDOLF BOSNJAK DESING CE32 HDC BOARDS TESTER

EXPERT for FAULT FINDING PROCEDURE

 FAST_CE32_HDC_BOARDS_TESTER_SOLDERING.jpg (14363 bytes) FAST_CE32_HDC_BOARDS_TESTER_WITH_BOARDS.jpg (21518 bytes) FAST_CE32_HDC_BOARD_EXTNDER.jpg (20956 bytes)

CE32 HDC BOARDS TESTER FROM DIFFERENT ANGLE.

FAST_CE32_HDC_BOARDS_TESTER.jpg (94636 bytes)

COMPLETE RUDOLF BOSNJAK DESIGN IN 1986 HIS CE32 HDC BOARDS TESTER FOR 1900 HARD DISK CONTROLLER.

FAST_CE32_BOARD.jpg (24552 bytes)

In each CE32 HDC BOARD was 8 VERY FAST SWITCHING SPEED TRANSISTORS to be checked.
Sometimes when you check them with OHM meter on PCB is OK, but do not work in machine.
For that reason I design to help my self and save my fault fining time to minimum with this CE 32 BOARD TESTER,
without desoldering and removing transistors from the PCB and check them one by one.

FAST_CE32_HDC_BOARDS_TESTER_LED.jpg (10342 bytes)

When transistor is burned on any path: E-C, E-B, B-C RED LED DIODES WILL GLOW and I know which one must to be replaced.
There is A TOO MUCH THIS BOARDS CE 32 TO CHECK EVERY TIME WHEN FAULT APPEAR.

 

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