X-W320
6
ADJUSTMENT
SYSTEM CONNECTIONS
(a) AZIMUTH ADJUSTMENT
SCREW
TAPE SPEED(HIGH)
TEST POINT
REC
IN
PLAY
OUT
LINE
R
L
SYSTEM
CONTROL
AC 110 -
120V
AC 220 -
240V
Oscilloscope
AC voltmeter
Frequency counter
AC voltmeter
AG
{
(A)
(B)
1
2
REC/PB UNIT
TP201(L)
TP202(R)
GND
R404
To be added
a 1k
Ω
.
R524
Q404
VR502
VR501
(A DECK)
(B DECK)
1K
Ω
1K
Ω
No.
ITEM
INPUT
SETTINGS
OUTPUT
SETTINGS
CASSETTE TAPE
DECK SETTINGS
ALIGNMENT
POINTS
ALIGN FOR
[1]
Demagnetization
and cleaning
–
–
Power OFF, demagnetization,
cleaning play
REC/PB
head, erase
head. cap-
stan, 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.
[2]
REC/PB head
azimuth
MTT-114,
TCC-153
SCC-1727
(B)
PLAY
Azimuth
adjustment
screw.
Maximize the output and
adjust so that the Lis-
sajous figure nears a line
slanted 45°.
<1>
Tape
speed
(A DECK)
HIGH
MTT-111
TCC-100
SCC-1727
3kHz, -4dB
TP201
or
TP202
(B)
1. Playback a TEST TAPE
2. Connect collector (Q404)/
R404 to GND via1k
Ω
.
HIGH VR401
Adjust so that the frequen-
cy is 6kHz(HIGH), 3kHz
(NOR) at the tape center.
NOR.
3. Disconnect a 1k
Ω
.
NOR. VR402
Tape
speed
(B DECK)
HIGH
1. Playback a TEST TAPE.
2. Connect collector (Q508)
/R524 to GND via 1k
Ω
.
HIGH VR501
NOR.
3. Disconnect a 1k
Ω
.
NOR. VR502
<2>
Playback level
(A DECK)
TCC-130
PLAY
VR403(L)
VR404(R)
775mV
Playback level
(B DECK)
VR503(L)
VR504(R)
<3>
MPX filter
19kHz, -20dB
REC LEVEL 0dB
DOLBY B MODE
L 203(L)
L 204(R)
775mV ±2dB
<5>
Bias current
1kHz,15mV
10kHz,15mV
• Adjust the REC LEVEL vol-
ume so that the recording
monitor output becomes
15mV at 1kHz.
• Record 1kHz and 10kHz alter-
nately.
• Rewind and playback record-
ed signal.
VR101(L)
VR102(R)
15mV ±1dB
<4>
Recording level
1kHz, 200mV
• Adjust the REC LEVEL vol-
ume so that the recording
monitor output becomes
200mv at 1kHz.
• Record 1kHz.
•
Rewind and playback record-
ed signal.
VR201(L)
VR202(R)
Adjust the variable resis-
tors so that a playback
level of 200mV ±0.5dB is
obtained.
FIG.
(a)
TP201(L)
TP202(R)
(B)
II. Printed circuit board adjustment. Note : First perform the high-speed adjustment.
Unless otherwise specified : each ; switch should be set as follows :
TAPE : NORMAL, DOLBY : OFF, INPUT : LINE
0dBs=0.775V
I.Cassette mechanism section (REC/PB head adjustment)
X-W320(K)
COVER(
97.11.29
4:37
AM
y [ W
11
