KENWOOD LSN302
Instrukcja Serwisowa

RXD-302/302E/352/352E/372S
ADJUSTMENT
CASSETTE DECK SECTION
NO. ITEM INPUT SETTINGS OUTPUT CASSETTE TAPE S E T T I N G S DECK SETTINGS ALIGNMENT POINT ALIGN FOR FIG.

Unless otherwise specified : each ; switch should be set as follows : BEAT SW : OFF I. Cassette mechanism section (REC/PB head adjustment)

0dBs = 0.775V

{

[1]

Demagnetization and cleaning

�

�

Power OFF, demagnetization, cleaning play

REC/PB head, erase head. capstan, pinch roller

Demagnetize the REC/PB head by head eraser. Clean the REC/PB head, erase head capstan and pinch roller with a cotton swab immersed in alcohol. In a setting wher the output is maximized, adjust the azimuth adjustment screw so that the Lissajous figure appearing on the oscilloscope screen comes near to a line slanted45° Note : The head should be installed in such a manner that it approaches the tape face.

[2]

REC/PB head azimuth

MTT-114, TCC-153 SCC-1727 10 kHz, -10dB

(A)

PLAY

Azimuth adjustment screw

II. PC board adjustment MTT-111 TCC-100 SCC-1727 3 kHz, -4 dB TCC-120 315 Hz 0dB Put standard test tape (TCC-120) into B deck. (A) Put standard blank tape into A deck. Adjust so that Frequency is 3 kHz at the center of the tape. Approx. -5dBm reference level

< 1 > Tape speed

(A)

PLAY

SFR201

< 2 > Playback level

(A)

PLAY

Recording level <3>

Dubbing and playback.

Approx. -5dBm reference level

INSTRUMENTS CONNECTION Oscilloscope AC voltmeter
Frequency counter

Lch: PIN13(LA08) Rch: PIN8(LA06) PIN13 �

(A)
PIN8

IC401

MAIN UNIT
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