Adjustment - Kenwood KXF-W4030-S Service Manual

CT-405/KXF-W4030
No. ITEM
CASSETTE DECK SECTION
I. REC/PLAY HEAD
DEMAGNET-
[ 1 ]
IZATION
[ 2 ] CLEANING
[ 3 ] AZIMUTH
II. PC BOARD
NOR.
SPEED
A DECK
HI.
SPEED
[ 1 ]
NOR.
SPEED
B DECK
HI.
SPEED
III. PC BOARD * TP2 (Q12, BASE)
PLAYBACK
< 1 >
LEVEL
BIAS
< 2 >
CURRENT
RECORD
< 3 >
LEVEL
REC PLAY
LINE IN LINE OUT
6

ADJUSTMENT

INPUT OUTPUT
SETTINGS SETTINGS
TAPE: NORMAL, DOLBY: OFF, INPUT: LINE IN
– –
– –
(A)
MTT·114, TCC-153 (B)
0 kHz, -10 dB
(A)
(B)
MTT-111, TCC-110
3 kHz
(B)
MTT-150
DOLBY
400 Hz (200 nWb)
0 dB LEVEL
(B)
(A)
400 Hz, -20 dBs
20 dBs
12.5 kHz, -20 dBs
(B)
(A)
400 Hz, 123mV
0 dBs
SYSTEM
CONTROL
CASSETTE DECK ALIGNMENT
SETTINGS
POWER OFF
REC/PLAY
Remove the cassette
door.
REC/PLAY
head, erase
PLAY
head, capstan
pinch roller
Azimuth
PLAY adjustment
PLAY SFR 06
HI DUBBING SFR 08
SFR 05
PLAY
Play first and short
SFR 07
* TP2 to GND.
SFR101 (L)
PLAY
SFR102 (R)
Adjust REC level VR so
that the REC monitor
output becomes -20 dBs SFR11 (L)
at 400 Hz, then record and SFR12 (R)
reproduce signal of 400 Hz
and 12.5 kHz in alternation.
Record and reproduce a
SFR09 (L)
400 Hz, signal under the
SFR10 (R)
conditions set in < 3 >.
ALIGN FOR
POINT
0 dBs = 0.775 V
Demagnetize the REC/
PLAY head with a head
head
demagnetizer.
Clean the REC/PLAY head,
erase head, capstan and
pinch roller using a cotton
swab slightly damped with
alcohol.
Maximum output.
screw
Adjust the tape speed so
that a 3 kHz signal is
produced at the center of
the tape.
5.4 kHz
Adjust the tape speed so
that a 3 kHz signal is
produced at the center of
the tape.
5.4 kHz
A
Output level : 0 dBs
Record 400 Hz and 12.5 kHz
in alternation and adjust the
variable resistors which
control the bias current so
that the same playback
level is obtained.
Adjust for 0 dBs at line out.
FIG.
(a)