Akai GXR 88 Service Manual

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Akai GXR 88 Service Manual

Extracted text from Akai GXR 88 Service Manual (Ocr-read)


Page 5

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VI.

VH.

VIII.

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SECTION 1

SERVICE MANUAL

TAB LE CNTENTS

SPECIFICATIONS ........................................ 4
DISMANTLING 0F UNIT .................................. 5
CONTROLS ............................................ 6
PRINCIPAL PARTS LOCATION .............................. 7
MECHANICAL ADJUSTMENT ............................... 9
5-1 PINCH ROLLER PRESSURE MEASUREMENT ............. 9
5-2 WINDING TORQUE MEASUREMENT IN EACH MODE IIIIIIII 9
5-3 HOW TO INSTALL VOLUME (VR901) AND CAM WHEEL ,,,,, 10
54 POTENTIO METER PRESET VOLTAGE ADJUSTMENT ........ 11
5~5 TAPE SPEED ADJUSTMENT ............................ 13
HEAD ADJUSTMENT ..................................... 14
6-1 TAPE GUIDE HEIGHT ADJUSTMENT ..................... 14
6-2 REC/PB HEAD AZIMUTH ADJUSTMENT .................. 15
6-3 HEAD HEIGHT ADJUSTMENT ......................... 15
6-4 HEAD BLOCK PROJECTION ADJUSTMENT ................ 15
ELECTRICAL ADJUSTMENT ................................ 16
7-1 PRE-AMPLIFIER PC BOARD ADJUSTMENT ................ 16
7-2 TUNING ADJUSTMENT POINT ......................... 18
7-3 QUICK REVERSE SENSITIVITY ADJUSTMENT .............. 20
DC RESISTANCE OF HEADS ............................... 21
P.C BOARD TITLES AND IDENTIFICATION NUMBERS ........... 22

For basic adjustments, measuxing methods, and operating principles, IefeI (0 GENERAL TECHNICAL
MANUAL.

SERVICE MANUAL GX-R88