Panasonic JB-3300 Technical Manual page 359

PART. I
1. INTRODUCTION
This service manual consists of two parts, Part | covering maintenance description, adjustment procedures, and trouble
analysis and Part Il disassembly and reassembly procedures partslist, and PCB circuits.
Part | encompasses maintenance instructions for all FDD models. Refer to the applicable items, and perform maintenance
work on the FDD.
2. MODELS AND MODEL NUMBERS
JA-550
JA-551
Q6TPI ——— JA-56X JA-560
JU-58X JU-581
L——- JU-59X JU-591
JU-465
JU-475
2.2 3.5-inch FDD
67.5TPI————_ JU.31X_ ———y——312
JU-313
JU-314
L_____ 435TP}. ——~——_—-._ JU-32x —— JU-322
JU-323
JU-324
L_ JU-36X JU-362
JU-363
JU-364
3. SPECIAL TOOLS
The following special tools are used for FDD maintenance.
TABLE3.1
| Part No. .
Tool 5 .25-inch(96TPl) ; Quantity
3.5-1nch
JA-56x/JU465 JB-58x/59x/JU-475
Exerciser K << K K 1
Alignmentdiskette 817-560 817-581 JU-O1AA 1~2
(DAD only)
Work diskette 2DD 2HD 2DD 1~2
CMOS/TTL adaptor YTFDD-CN35 1
Limmiter Adfust Tool
(5.25-inch) 1
Oscilloscope (50 MHz) 1
Probe (10:1) 3
Frequency counter 1
Note: %—<Stand tor tne same as left.
: DAD (Dynamic AlignmentDiskette)