Yamaha k 2000

Page 1

STEREO CASSETTE DECK

- K-2000 l

I FRONT PANEL

@YAMAIIA mmm scum 5m asserts my more a m-

53M ,

I CONTENTS

TD SERVICE PERSONNEL ................. 1
SPECIFICATIONS ....................... I
REAR PANEL .......................... 2
INTERNAL VIEW ....................... 3
DISASSEMBLY PROCEDURES ........... 3 ~ 7
ADJUSTMENT ...................... 8 ~ 12
TIMING CHART .................... 13 ~ 15
BLOCK DIAGRAM ..................... 16
SCHEMATIC DIAGRAM .................. 17
WIRING ................. . ........... 18
PRINTED CIRCUIT BOARD ............ 18 ~ 25
PARTS LIST ....................... 26 ~ 40

-

YAMAHA

004502 NIPPON GAKKI CO. LTD HAMAMATSU. JAPAN

Pnnted in Japan 83.2,2.6k 376 @

SINCE 1387

Page 2

K- 2000

I TO SERVICE PERSONNEL

(Prepared' In accordance with UL Standard 1270)
Before service of this appliance by you, please carefully read this service manual.

Please make Leakage- current or Resistance measurements by suitable meter to determine that exposed
parts are acceptably insulated from the supply circuit before returning the appliance to the customer.

LEAKAGE CURRENT MEASUREMENT CIRCUITS

APPLIANCE METER

OPEN

I GR ' ' ' '.
(GROUNDING)

INSULATING
TABLE

GROUND SUPPLY CON DUCTOR

B

Appliance intended for connection to a 120 volt power supply.

A PROBE WITH SHIELDED LEAD.
B

SEPARATED AND USED AS CLIP WHEN MEASURING CURRENTS FROM

ONE PART OF APPLIANCE TO ANOTHER.

Confirm that the leakage current is not more than 0.5mA A0.

I SPECIFICATIONS

4-track 2 channel
Stereo Cassette Deck

Track Configuration

Output Level/Impedance

LINE: 500mV/30kn
PHONES: 170mV/8SZ

Transport Controls 5-key feather touch full logic

Signal-to-Noise Ratio

control THROUGH more than 59dB
IMECHANICAL SECTION DOLBY more than 68dB
Tape Speed 4.8 cm/sec dbx more than 108 dB
Wow & Flutter less than 0.08% W. Peak Harmonic Distortion

less than 032% w FIMS Metal tape (315Hz) less than 08%
Rapid Transport Within 75 seconds I GENERAL

(F. FWD/R EW) (for C-GO cassette) Power Supplies

Motor 1 Pulse Servo Brushless DD Us 81 Canadian Models 120V 60Hz

motor lCapstan) ' European Model 220V 50Hz

1 Flat Torque DC motor [Reel] British & Australian Models 240V 50Hz
Mechanism 2-motor, 2-solenoid mechanism General Model i101120/220/240V 50/60Hz
I HEAD SECTION Power Consumption 40W

Recording/Playback Head Combination, Low-Impedance
Sendust 3 Laminate Core
Erase Head (Main, Sub) Double Gap Sendust Clevite
- AMPLIFIER secnon »
REC/PB Frequency Response
Normal tape i-20dBl
chrome tape (-20dB)
Metal tape (-20:13)
(OdBl

20Hz to 18kHz i3dB
20Hz to 20kHz 13113
20Hz to 20kHzi3dB
30Hz to 15kHz fldB

LINE: 50mV/30kn
LINE: 6V

Input Sansmvlty/ I mpedanoo
Maximum allowable input

Dimensions 435 x 122.5 x 346
(W x H x D) (i7-1/8x4-7/8x13-5/8")
Weight 9 kg (19.8 lbs)

Specifications subject to change without notice.

(U) ..... U.S.A. model
Canadian model
Australian model
European model
British model

. General model