Nad T 514 C Service Manual

Page 2

SECTION 1 . .
SECTION 2 . . .
SECTION 3 . . .
SECTION 4 . . .
SECTION 5 . . .

CONTENTS

. .SUMMARY

.CABINET & MAIN CHASSIS
.ELECTRICAL

.MECHANISM
.REPLACEMENT PARTS LIST

Page 3

SECTION 1

SUMMARY

CONTENTS
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS ........................... 1-3
SERVICING PRECAUTIONS .................................................................................................. 1-4

- General Servicing Precautions
- Insulation Checking Prodedure
- Electrostatically Sensitive Devices
SPECIFICATIONS ...................................................................................................................... 1-5

1-2

Page 8

EXPLODED VIEWS

1. Cabinet and Main Frame Section

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Page 15

the SLED move
to inner side when it is at
cutter position?

NO

YES

Motor Driver STBY
Pin is High?

Is FMSO DC Level highe
than 1.4V?

SL+ and SL7 output
properly?

V

NO

Do not put in disc and tray
close.

Check the cable connection with
MECHA.

Optical Lens has
movements for searching
Focus?

Proper FOSO outputs
to motor driver?

Proper F+ & Fr outputs?

V

NO

Check cable connect on with
pickrup head.

Check the connection line of
STBY signal.

Check the related circuit at
FMSO.

Check the amp circuit on motor
driver.

Check FOSO connection on
MT1389 and motor dirver.

Check the amp circuit on motor
dirver.

Page 17

NO Proper signals on NO

A,B,C,D of MT1389

Check connections between
MT1389 and pickup head.

Check FEO signal
on MT1389

Check the F080 connection on
MT1389 and motor driver.

YES

7
Check FOSO signal on MT1389

NO Normal TEO Signal on NO

MT1389? '
YES YES
Properly TRSO signat NO >
on MT13897
VES
N
T+ & Tr output 0 >

properly?

YES

V

Check cable connection on
pickup head.

Disc is play 7 Check RFO & FlFLVL signal waveform.

YES

Check the related
circuit on MT1389

Check the TRSO
connection on MT1389
and motor dirver.

Check the tracking controi
amp circuit on motor
driver.