Kenwood RXD-V828 User Manual

11
ADJUSTMENT
RXD-V525/V626/V727/V828
No
< 1 >
< 2 >
< 1 >
< 1 >
< 2 >
ITEM
Demagnetization
and cleaning
Azimuth of the
REC/PLAY head
TAPE
SPEED(NORMAL)
PLAYBACK
LEVEL
BIAS CURRENT
INPUT
SETTING
–
TCC−153
MTT−114
10kHz, − 10dB
TCC−110
MTT−111
SCC−1727
3kHz
(A)
Adjust the AG
for the output of
the DECK to
become
1kHz(-30dBs)/
10kHz(-30dBs).
MTT-256U,
TCC-160
315Hz, 0dB
Adjust the playback
output to -6.0dBs
OUTPUT
SETTING
–
(B)
(B)
(B)
(B)
DECK
SETTING
Demagnetization:
POWER OFF
Cleaning: PLAY
PLAY
PLAY
PLAY
Adjust the REC VR
level so that the line
out is -2.6dBs at
1kHz, and record
and playback
1kHz/10kHz
alternately.
ALIGNMENT
POINT
Recording
head, erase
head,capstan
pinch roller
FWD RVS
A/B DECK
VR 5
A DECK
VR 1 (L)
VR 2 (R)
B DECK
VR 7 (L)
VR 8 (R)
VR 3 (L)
VR 4 (R)
ALIGN FOR
Demagnetize the
REC / PLAY head
with the head
eraser.Clean the
REC / PLAY head,
erase head,capstan
and pinch roller
using a cotton swab
slightly damped with
alcohol.
Adjust the output to
maximum and adjust
the azimuth
adjustment screw for
the Lissajours
waveform pattern of
the oscilloscope to
become close to a
45° straight line.
Adjust the tape
speed so that 3kHz
is obtained at the
center of the tape.
Record 1kHz and
10kHz alternately,
and adjust the bias
current adjustment
potentiometer for the
playback levels to
become the same.
FIG.
Unless otherwise specified, set the respective switches as follows: 0dBs=0.775V
TAPE : NORMAL DOLBY : OFF PLAY OUT : Lch (X28,CN64pin), Rch (X28,CN66pin)
ø. Cassette mechanism unit (Adjustment of the REC / PLAY head)
¿. PC BOARD ADJUSTMENT
¡. PC BOARD ADJUSTMENT
Cassette Deck adjustment
{
(A) (B)
X28, CN1
L OUT
R OUT
R OUT
R IN
L IN
GND
1
2
3
4
5
6
8
7
9
10
11
AC voltmeter AG
Oscilloscope
AC voltmeter
Frequency counter
Solder with
some lead
wires.
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Kenwood RXD-V828 Specifications

General

Brand	Kenwood
Model	RXD-V828
Category	Stereo System
Language	English