Sanyo DC-DA90 Service Manual
Text of the manual
Micro Component System
DC-DA90 (SP)
PRODUCT CODE No.
129 620 02
REFERENCE No. SM5810260
SP: This service manual consists of "DC-DA90U/SP" (Main unit : 129 619 02) and
"SX-DA90/SP" (Speaker system : 165 045 00).
Contents
Specifications ................................................................... 1
System connections .........
- 1 -
SPECIFICATIONS
Tuner
Reception frequency .............. FM : 87.5 - 108.0 MHz
AM : 522 - 1611kHz
CD player
Channels................................ 2-channel stereo
Sampling frequency ............... 44.1 kHz
Pick-up ................................... Optical 3-beam
semiconductor laser
Laser output ........................... 0.6mW(Continuous wav
- 2 -
LASER BEAM SAFETY PRECAUTION
•
Pick-up that emits a laser beam is used in this CD player section.
CAUTION :
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE
OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN
MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
THIS PRODUCT SHOULD NOT BE ADJUSTED OR REPAIRED BY
ANYONE EXCEPT PROPERLY QUALIFI
- 3 -
TAPE ADJUSTMENTS
R / P HEAD
RED
WHITE
YELLOW
EARTH
a.
Replacing the head
1.
After replacement, demagnetize the heads by using
a degausser.
2.
Be sure to clean the heads before attempting to make
any adjustments.
3.
Be sure both channels (1 and 2) are the same level.
(Using a dual-channels oscilloscope).
4.
All wiring should be returned to the origi
- 4 -
TUNER ADJUSTMENTS
D
E
F
E
MW ANT
MW OSC
E
E
E
E
E
E
E
+9V
BAND2
BAND1
LID_SW
IF
SD
FRONTGND
AM OSC
VT
+B 9V
AMPGND
TU_L
TU_R
ST
MONO
MUTE
BAND1
BAND2
VT
1AD4B10D0972D
T002 94V-0
L2103
L2205
XF212
IC201
XF211
CT211
Q2001
L2010
D2005
D2004
D2102
SH201
J2802
D2002
D2003
C2009
J2114
L2003
J2113
J2815
J2809
C2104
J2813
C2111
C2119
C2121
C2701
C2801
C2107
