Sanyo FXD-880-RDS Service manual
FILE NO.
SERVICE MANUAL
SPECIFICATIONS
FULL PANEL DETACHABLE
FM STEREO / MW RECEIVER
COMPACT DISC PLAYER
WITH CD CHANGER CONTROLLER
FXD-880RDS
(GENERAL)
PRODUCT CODE No.
147 892 01
FM TUNER SECTION
Frequency Range .................................87.5MHz~108.0MHz
I.F. Rejection .........................................100dB
Image Rejection.....................................55dB
Selectivity...............................................65dB
Signal to Noise Ratio.............................60dB
Stereo Separation..................................30dB
Usable Sensitivity...................................12dBf
MW TUNER SECTION
Frequency Range..................................522kHz~1,611kHz
I.F. Rejection..........................................85dB
Image Rejection.....................................60dB
Signal to Noise Ratio.............................50dB
Usable Sensitivity (S/N 20dB)................28dB
CD SECTION
Sampling frequency...............................44.1kHz
D/A converter.........................................1-Bit Twin
Laser Pickup..........................................Optical 3-beam
semiconductor laser
Specifications are subject to change without notice
Frequency Response.............................20Hz~20kHz
Dynamic Range.....................................90dB
Signal to Noise Ratio.............................85dB
Channel Separation (1kHz)....................75dB
Degital Filter...........................................8fs
Error Correction.....................................CIRC
AUDIO SECTION
RMS Power Rating (10%THD)..............28W x 4 (15.0V)
Maximum Output Power........................50W x 4 (15.5V)
Load Impedance....................................4
GENERAL
Power Source .......................................
Operating Current Maximum..................10A
Dimensions............................................178 x 50 x 160mm
Weight....................................................1.4kg
REFERENCE No. SM800075
14.4V (10.5~15.5V)
(DC Negative Ground)
REAR VIEW
CN701
CN701 шпк РЧТ ЭСТТЫЭМСОч
LASER BEAM SAFETY PRECAUTIONS
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(1)Notes for transport and storage
1)The pickup should always be kept in its conductive
bag until use.
2)The pickup should never be subjected to external
pressure or impact.
Storage in conductive bagDrop impact
(2)Repair notes
1)The pickup incorporates a strong magnet, and so
should never be brought close to magnetic
materials.
Magnet
2) The pickup should always be handled correctly and
carefully, taking care to avoid external pressure
and impact. If it is subjected to strong pressure or
impact, the result may be an operational
malfunction and/or damage to the printed circuit
board.
Pressure
Pressure
NGGOOD
NG
3)Each and every pickup is already individually
adjusted to a high degree of precision, and for that
reason the adjustment point and installation
screws should absolutely never be touched.
NG
2
LASER BEAM SAFETY PRECAUTIONS
4)Laser beam may damage the eyes!
Absolutely never permit laser beams to enter the
eyes!
Also NEVER switch ON the power to the laser
output part (lens, etc.) of the pickup if it is damaged.
Laser Beam
NEVER look directly at the
laser beam, and don't let
contact fingers of other
exposed skin.
NG
BEFORE REPAIRING THE COMPACT DISC PLAYER
5)Cleaning the lens surface
If there is dust on the lens surface, the dust should
be cleaned away by using an air brush (such as
one used for camera lens). The lens is held by a
delicate spring.
Conductive Sheet
6)Never attempt to disassemble the pickup.
(1)Preparations
1)Compact disc players incorporate a great many
ICs as well as the pickup (laser diode). These
components are sensitive to, and easily affected by
static electricity. If such static electricity is high
voltage, components can be damaged, and for that
reason components should be handled with care.
2)The pickup is composed of many optical
components and other high-precision components.
Care must be taken, therefore, to avoid repair of
storage where the temperature or humidity is high,
where strong magnetism is present, or where
there is excessive dust.
(2)Notes for repair
1)Before replacing a component part, first disconnect
the power supply lead wire from the unit.
2)All equipment, measuring instruments and tools
must be grounded.
3)The workbench should be covered with a
conductive sheet and grounded.
When taking the laser pickup out of its conductive
bag, do not place the pickup on the bag. (This is
because there is the possibility of damage by
static electricity.)
4)To prevent electric current leakage, the metal part
of the soldering iron should be grounded.
5)Workers should be grounded by an arm band
(1M ).
6)Care should be taken not to permit the laser pickup
to come in contact with clothing, in order to prevent
static electricity changes in the clothing from
escaping from the arm band.
7)The laser beam from the pickup should NEVER be
directly facing the eyes or bare skin.
Arm band
Resistor
(1M )
Conductive
Sheet
Resistor
(1M )
3
HOW TO HOLD THE PICK UP
NG
NG
SPECIAL SERVICE TOOL
! SERVICE KIT (PART No.644 016 3657)
Service kit includes;
qFFC
Please connect each connectors to the point of FFC
NG
GOOD
Main unit audio
CN331 (15P)
4
FFC
CD Mechanism
CN803 (15P)
BLOCK DIAGRAM
5
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МЫФуУЛМЫ
BLOCK DIAGRAM
(CD Section)
CD
MECHANISM
OPTICAL PICKUP
RAF0143A
ФЯНЫО ЬЧСЬЫ
РШСМС ЬЫМЫЭМСО
ЪСЭЛН ЯЭМЛЯМСО
МОЯЭХ ЯЭМЛЯМСО
НФЫЬ УСМСО
НРЧТЬФЫ УСМСО
ФСЯЬЧТЩ УСМСО
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ФСуЫТЬ НЙ
ФЧУЧМ НЙ
ERROR CODE LIST
SERVO
P.C.B.
ÎÚ ßÓÐ
õ
НЫОКС
НЧЩТЯФ
РОСЭЫННСО
IC801
TA2153FN
мЭШ ЮМФ НЫОКС ЬОЧКЫО
пЭШ УСМСО ЬОЧКЫО
лК ОЫЩ ЭЧОЭЛЧМ
IC803
TA2125AF
ЬЧЩЧМЯФ НЫОКС
РОСЭЫННСО
õ
муЮЧМ
УЧЭОСЭСТМОСФФЫО
IC802
TC94A23F
MODULE
P.C.B.
AUDIO CIRCUIT
MAIN
CONTROL
UNIT
+B DETECT
CIRCUIT
ßÝÝ
5V REGULATOR
CIRCUIT
8V REGULATOR
CIRCUIT
CD Player
If a problem should occur while operating the built-in CD player, one of the following error signs may be displayed:
Error Sign Code
Ûðï
Ûðé
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Trouble
Remedy
Ю»-- ¬¸» »¶»½¬ ¾«¬¬±²ò
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Ý´»¿² ¬¸» ¼·-½ò
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Ô»¿ª» ¬¸» ¼·-½ °´¿§»® ±ºº º±® ¿² ¸±«® ±® -±ô ¬¸»² ¬®§ ¿¹¿·²ò
CD Changer
If a problem should occur while operating the connected CD changer, one of the following error signs may be displayed.
Error Sign Code
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Ûðé
Ûíð
ТС УЯЩЯЖ
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Trouble
Remedy
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6
TROUBLESHOOTING
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7
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8
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9
TROUBLESHOOTING
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10
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TROUBLESHOOTING
Communication
error
5V at pin 8 of
CN803 when
power is turned
on and +B is
applied?
Yes
Does pin 6 of
CN803 have 8V
simultaneously?
Yes
Does pin 12 of
CN803 have 5V
simultaneously?
Yes
Does pin 14 of
CN803 have reset pulse
simultaneously?
Yes
Does X802
oscillate at 4.5MHz?
Check +B 5V of main audio
No
unit circuit.
Poor contact of CN803.
Open circuit in flat cable.
Check 8V of main audio unit
No
circuit.
Poor contact of CN803.
Open circuit in flat cable.
Poor contact of CN803.
No
Open circuit in flat cable.
Check R837, R707,
and Q704.
No
Check IC801.
Check Q730 and Q731.
Open circuit in flat cable.
No
Check X802.
Check IC802.
Yes
Does X801
oscillate at 16.93MHz
when power is turned
on and +B is
applied?
Yes
Check IC802.
11
No
Check X801.
Check IC802.
EXPLODED VIEW (CABINET)
43
1
42
30
29
32
43
CD MECHANISM
36
44
43
31
43
37
34
35
51
51
SC010
SC010
52
39
38
40
41
50
55
MAIN P.C.B.
54
53
49
49
48
46
33
3
22
21
20
LCD
23
11
19
16
12
10
2
5
AUX P.C.B.
SWITCH P.C.B.
9
17
13
6
4
18
14
15
7
8
47
24
12
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