Sanyo FXD-685GD User manual

Category
Car media receivers
Type
User manual

This manual is also suitable for

Service Manual
Full Panel Detachable
High Power
FM/AM Stereo
Receiver
Compact Disc Player
FXD-680GD
114782877
FXD-685GD
114782878
SEL
FM/MW/LW CD RECEIVER 45W x 4 CD-R&RW
FXD-680GD
SEL
FM/MW/LW CD RECEIVER 45W x 4 CD-R&RW
FXD-685GD
Contents
SERVICE NOTE AND PRECATIONS............................................................................................................................................................................... 2
OPERATION CHECK ....................................................................................................................................................................................................... 5
ALIGNMENT LOCATIONS................................................................................................................................................................................................ 6
ELECTRICAL ADJUSTMENTS......................................................................................................................................................................................... 7
BLOCK DIAGRAM .......................................................................................................................................................................................................... 18
IC/TRANSISTOR LEAD IDENTIFICATION..................................................................................................................................................................... 20
CD MECHANISM EXPLODED VIEW ............................................................................................................................................................................. 21
CABINET & CHASSIS EXPLODED VIEW ...................................................................................................................................................................... 22
PART LIST – CD MECHANISM...................................................................................................................................................................................... 23
PART LIST CABINET, CHASS AND ACCESSORY ....................................................................................................................................................... 25
PART LIST MAIN............................................................................................................................................................................................................ 27
PART LIST KEY.............................................................................................................................................................................................................. 30
PART LIST CD SERVO .................................................................................................................................................................................................. 31
PART LIST REMOTE...................................................................................................................................................................................................... 33
PART LIST JB/GIB.......................................................................................................................................................................................................... 34
SCHEMATIC DIAGRAM ................................................................................................................................................................................................. 35
CIRCUIT BOARD DIAGRAM .......................................................................................................................................................................................... 39
REFERENCE No. SM-06
0
00
03
FILE NO.
1
SPECIFICATIONS
FM TUNER
Frequency Range ...................................................................................... FM 87.5 - 108.0 MHz (50 KHz Step)
Sensitivity.......................................................................................................................... FM 3 µV (S/N=30 dB)
Stereo Separating (FM) ..............................................................................................................30 dB (at 1kHz)
Signal to noise ratio (FM).........................................................................................................Better than 50 dB
AM TUNER
Frequency Range .......................................................................................... MW 522 - 1620 kHz (9 KHz Step)
Sensitivity.....................................................................................................................MW 32 dBµ (S/N=20 dB)
Signal to Noise Radio ............................................................................................................... More than 45 dB
LW TUNER
Frequency Range ...................................................................................................................LW 144 - 288 kHz
Sensitivity......................................................................................................................LW 35 dBµ (S/N=20 dB)
CD PLAYER
Frequency Response................................................................................................................20Hz - 20,000Hz
Signal to Noise Radio ............................................................................................................... More than 65 dB
Channel Separation .................................................................................................................. More than 60 dB
T. H. D.......................................................................................................................................Less than 0.30%
AUDIO AMPLIFIER & GENERAL
Output Power........................................................................................................................................4 X 45 W
Speaker Output Impedance.......................................................................................................................4 ohm
Power Source ........................................................................................................... DC 12V, Negative ground.
Specifications are subject to change without notice.
2
SERVICE NOTES AND PRECAUTIONS:
Service notes:
1. Make sure that the power lead is connected properly to
Power source, otherwise damage to radio may result. If a
Battery, eliminator is used as a power source in place of a
Battery, it must be filtered and regulated. (The power sup-
ply capacity should be more than 5 amps).
2. Integrated circuits (ICs) are used in this unit. Because the
ICs are direct-coupled devices, as to all electronic equip-
ment, reading within 10% of the indicated values are acc-
eptable. Allowance must also be made for variations in
supply voltage. It is expected that any breakdown within
the IC results in drastic changes of the operating voltages
at the terminals.
3. When replacing a power output IC, remember to use the
IC specified in the parts list; Coat the IC-fin with silicon
grease.
WARNING
In using meters, signal generator and any tool in servicing
ICs, extreme care is needed.
DO NOT SHORT THE IC TERMINALS TO THE PATTERN
ON THE PC BOARD OR TO EACH OTHER. THE IC WILL
BE INSTANTANEOUSLY DESTROYED.
Adjustment procedure:
Alignment is performed at factory with laboratory equipment.
Therefore, before alignment is attempted, the unit should be
thoroughly checked for circuit troubles.
Notes:
1. Check for specified source voltage-DC, 14.4 volts.
2. Connect an AC voltmeter (AC VM) across speaker or
dummy load (4 ohms. 20W, wire wound resistor)….see
fig. 1-3. (ELECTRICAL ADJUSTMENTS).
3. Signal input must be kept as low as possible to avoid
overload and clipping (use highest sensitivity of output
indicator).
4. Repeat adjustment to ensure good results.
5. Non-metallic alignment tools, must be used (especially
at FM alignment).
6. for alignment location details, refer to CIRCUIT BOARD
PARTS LOCATIONS
Installation procedure:
1. To prevent a short circuit, remove the key from the ignition
and disconnect the battery.
2. Make the proper input and output wire connections for
each unit.
3. Connect the wiring harness wires in the following order:
ground, sealers, battery, ignition.
4. Connect the wiring harness connector to the unit.
5. Install the unit in your car.
6. Reconnect the battery.
7. Disentails by reversing the installation procedure.
CAUTION
The rear-panel which also heat sink is very hot. Don’t
burn!!
If your car’s ignition does not have an ACC position,
connect the ignition wires to a power source that can
be turned on and off with the ignition key. If you connect
the ignition wire to a power source with a connect voltage
supply, as with battery wire the battery may die.
If the console has a lid, make sure to install the unit so
that the cover will not hit the lid when closing and open-
ing.
If the fuse blows, first make sure the wires aren’t touch-
ing to case a short circuit, then replace the old fuse with
one with the same rating.
Do not let unconnected wires or terminals touch metal
on the car or anything else conducting electricity. To
prevent a short circuit, do not remove the caps on the
ends of the unconnected wires or the terminals.
Connect the speaker wires correctly to the terminals to
which they correspond. The unit may be damaged or
fair to work if you share the wires or ground them to
any metal part in the car.
After the unit is installed, check whether the brake lamps,
blinkers, wipers, etc. On the car are working properly.
Insulate unconnected wires vinyl tape or other similar
material.
3
SERVICE NOTES AND PRECAUTIONS
LASER BEAM SAFETY PRECAUTIONS
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 pres-
sure or impact.
REPAIR NOTES
1. The pickup incorporates a strong magnet, and so should
never be brought close to magnetic materials.
NG
Magnet
NG
2. The pickup should always be handled correctly and care-
fully, 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.
3. Each and every pickup is already individually adjusted to
a high degree of precision, and for that reason the adjust-
ment point and installation screws should be absolutely
never be touched.
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, and do not let contact
fingers of other exposed
skin.
NG
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.
Storage in conductive bag Drop impact
GOOD
Pressure
Pressure
4
SERVICE NOTE AND PRECATUTIONS
Static Electricity
The CD pickup might suffer destruction by static electricity during spare-parts maintenance or replacement, although it is stable
when connected to the circuit in the CD unit. The destruction might caused because the laser diode terminal will be electrically
open. To prevent the terminal from being open, do the following steps.
1. When you replace the CD pickup, or remove the CD unit from the car stereo unit for any maintenance purpose, solder the
copper foil pattern indicated in Fig. 1 below to short-circuit the connector PCB and flexible wire of the CD unit. Perform your
intended maintenance work with the flexible wire short-circuited.
2. If the original CD pickup may possibly be reused, make a short circuit in the area indicated in Fig. 2 first. Then remove the
pickup and perform the work.
3. The CD pickup OPTIMA-725C2, which is supplied as one of the spare parts, is already short-circuited with the copper foil
pattern pre-soldered indicated in Fig. 2 below. To handle this CD pickup, keep the short circuit as it is. Then attach the pickup
to the unit and connect the flexible wire to the connector.
4. After performing the work, eliminate the short circuit by removing the solder at its respective short-circuited area described in
1, 2 and 3 above.
5. Insert a CD. If the E-01 or E-02 error should appear on the display on the face plate, check the area mentioned in 4 above,
where the short circuit may not have been eliminated.
6. Note that the semi-fixed VR equipped with the CD pickupOPTIMA-725C2 must not be turned. You can’t make any
Adjustment to the semi-fixed VR, which is completely adjusted when shipped at the factory.
FIG.1
Fig. 2
5
OPERATION CHECK
GENERAL SPECIFICATIONS OF SIGNAL
Standard frequency
Signal output
Modulation
FM
MW
LW
FM
MW
LW
MW
FM Stereo
98.1 MHz (87.5, 108 MHz)
1000 kHz (522, 1620 kHz)
200 kHz (144, 288 kHz)
1 mV
5 mV
5 mV
400 Hz 30% MOD.
1 kHz 75 kHz DEV.
90% for L only or
R only pilot level 10%
AF output level FM/MW/LW
Power source voltage DC 14.0V (Backup voltage is the same as this)
AF load impedance 4 ohm pure resistance
Balance Center position of level
Tone Center position
The signal strength read in this section is voltage on the antenna.
Test Diagram
FL.
SPK.
FR.
SPE.
BACK UP (14.4V)
GROUND
POWER ANTANNA
MPX
STEREOS
MODULATOR
FM SG
AM SG
DUMMY
ANTANNA
VTVM
VTVM
DISTORTION
METER
ACC (DV14.4V)
SPK.
RR.
SPR.
RL.
MAIN UNIT
4−SPEAKER 4−SPEAKER
2−SPEAKER
FRONT
SPK.
SPK.
FRONT
2−SPEAKER
ANT
6
ALIGNMENT LOCATIONS
FM TUNER
7
ALIGNMENT PROCEDURES
FM ADJUSTMENT
Equipment Required
z AM IF/RF signal generator
z Solid-state voltmeter (SSVM)
z Regulated DC power supply
z 2-CH voltmeter
z Distortion meter
FM Alignment Using FM Signal Generator
Note: Press the radio power switch to on the radio. Signal generator output must be kept as low as possible
to avoid overload and clipping.
Step Generator
Coupling
Generator Display
Setting
Adjustment Remarks
Stereo
Separation
Signal
Generator
to antenna
receptacle
98.1 MHz
Int. 1 kHz
Dev. 75 kHz
L+R = 90 %
pilot = 10 %
98.1 MHz
VR1
Adjust AF
output power
at maximum
separating
more than 30 dB
FM SNC
Adjustment
98.1 MHz
Dev. 75 kHz
L+R=90 %
Int. 1 kHz
60dBµV output
98.1 MHz
@ 40 dBµ
98.1 MHz
VR2
Stereo Separation
25 dB (±5 dB)
STOP
SENS.
Signal Generator
to antenna
receptacle
98.1 MHz
Mod. 1kHz
Dev 75kHz
98.1 MHz
VR3
Adjust AF to
stop station.
Note: The tuner module is well-adjust and adjustment is not recommended.
8
RADIO OPERATION FOR FXD-680GD, FXD685GD
SEL
FM/MW/LW CD RECEIVER 45W x 4 CD-R&RW
2
7
6
8
54
3
1
FXD-680GD
SEL
FM/MW/LW CD RECEIVER 45W x 4 CD-R&RW
2
7
6
8
54
3
1
FXD-685GD
SWITCHING TO RADIO MODE…………………….…1
Press SOURCE button 1 to select radio mode, the radio mode appears in the display together with the memory
band and frequency.
SELECTING THE FREQUENCY BAND……………..2
At radio mode, press BAND/LOUD button 2 shortly to select the desired band.
The reception band will change in the following order:
FM1 FM2 FM3 MW LW
RADIO TUNING…………………………………………3
Press the TUN/TRK or button 3 shortly to activate automatic seek function. Press for several seconds
until “MANUAL” appears on the display, the manual tuning mode is selected. If both buttons have not pressed for
several seconds, it will revert to seek tuning mode and “AUTO” appeared on the display.
AUTOMATIC MEMORY
STORING & PROGRAM SCANNING…………………4
- Automatic memory storing
Press P.SCAN/AST button 4 for several seconds, the radio searches for 6 strongest stations and stores them
into the presets of the currently selected band.
- Program scanning
Press P.SCAN/AST button 4 shortly to scan preset station. When the field strength level is more than the
threshold level of stop level, the radio is holding at that preset number for several seconds with release mute,
then searches again.
STORING PRESET STATIONS .................................5
The preset buttons 5 can be used to store 6 stations in each band (FM 1, FM 2, FM 3 and MW, LW) for convenient
access to your favorite stations.
9
• Programming stations ..... 1. Select the desired band, then tune in the station you want to store in memory.
2. Press and hold one of the preset buttons 5 for more than 2 seconds until the
corresponding preset button number appears. Repeat steps 1. and 2. to program
additional stations.
Quick tuning .................….... Select the desired band, then press one of the six preset buttons 5.
LOCAL/DISTANT SELECTION ...........................…..6
Press LOC button 6 to set local or distant stations.
Use local position (LOCAL/LOC appears on the display) for reception of strong station, and distant position (DX
appears on the display) for reception of weaker stations. This function is effective during AUTO SEEK operation.
MONO/STEREO SELECTION .......................….…...7
Press MONO button 7 to select mono or stereo mode. You can sometimes improve reception of distant stations by
selecting mono operation.
FREQUENCY SCAN OPERATION.......................….8
Press F.SCAN button 8 to set the function to frequency scan mode, which scans stations and stop for several
seconds at each receivable signal. Press F.SCAN button again to stop scanning.
10
CD OPERATION FOR FXD-680GD, FXD-685GD
SEL
FM/MW/LW CD RECEIVER 45W x 4 CD-R&RW
34567
8
2
1
FXD-680GD
SEL
FM/MW/LW CD RECEIVER 45W x 4 CD-R&RW
34567
8
2
1
FXD-685GD
LOADING AND EJECTING THE CD………………1,8
Insert a disc into the CD slot 1 and the CD player will start.
The system remains in CD mode and “
” appears in the display.
Press the eject button 8 to eject a disc.
SWITCHING TO CD MODE.......................................2
Press the SOURCE button 2 with the power on to switch from radio mode or AUX mode to CD mode.
When the CD mode is switched on while a disc is loaded, play resumes from the point at which play was stopped.
When the entire disc has played, the unit returns to the first track and play resumes.
SKIPPING TRACKS .............................................…3
Press the TUN/TRK button to skip to the beginning of the next track.
Press the TUN/TRK
button to skip to the beginning of the previous track.
Press and hold the TUN/TRK
or TUN/TRK button 3 for several seconds to search quickly (with sound) in
the forward or reverse direction.
When the button is released, the CD resumes normal play.
Notes:
PLACING THE CD IN PAUSE MODE ......................4
While playing a CD, press the PAU button 4.
To resume playing, press the PAU button 4 again.
You can play CD-Rs or CD-RWs (rewritable CDs) on this unit in proper condition.
Some CD-Rs/CD-RWs (depending on the equipment used for its recording or the
condition of the disc) may not play on this unit.
You cannot play CD-R/CD-RW that is not finalized. (A finalize process necessary for a
11
Notes
REPEAT MODE ........................................................... 6
Press the RPT button 6 to play the current track repeatedly.
To cancel this mode, press the RPT button 6 again.
SHUFFLE MODE.......................................................... 7
This function plays the tracks on a CD in random order.
Press the SHF button 7 to begin shuffle play.
To cancel this mode, press the SHF button 7 again.
SCAN MODE (PLAYING THE BEGINNING
OF EACH TRACK) ....................................................... 5
This function plays the first several seconds of each track sequentially.
Press the SCN button 5 to begin the scan mode.
To cancel this mode, press the SCN button 5 again.
During playback of a CD, the CD running indicator spins.
The unit will turn-on automatically when a CD is inserted if the ignition switch is “ON”.
12
AUX MODE OPERATION FOR FXD-680GD
SEL
FM/MW/LW CD RECEIVER 45W x 4 CD-R&RW
1
SWITCHING TO AUX MODE.......................................1
The unit has a pair of auxiliary input terminals (see WIRING figure on page 18). This allows you to listen to an
auxiliary audio source (MP3, portable cassette player, etc).
Press the SOURCE button 1 with the power on to switch from radio mode or CD mode to AUX mode.
13
CD CHANGER OPERATION FOR FXD-685GD
SEL
FM/MW/LW CD RECEIVER 45W x 4 CD-R&RW
23456
7
8
1
SWITCHING TO CD MODE.......................................1
Press the SOURCE button 1 with the power on to select CDC mode.
When the CDC mode is switched on, playback begins with the first CD that the CD changer detects.
SKIPPING TRACKS ...............................................…2
Press the TUN/TRK to skip to the beginning of the next track.
Press the TUN/TRK
button to skip to the beginning of the previous track.
Press and hold the TUN/TRK
or TUN/TRK for several seconds to search quickly (with sound) in the
forward or reverse direction.
When the button is released, the CD resumes normal play.
PLACING THE CD IN PAUSE MODE ....................... 3
While playing a CD, press the PAU button 3.
To resume playing, press the PAU button 3 again.
SCAN MODE (PLAYING THE BEGINNING
OF TRACKS OR DISCS) ........................................... 4
This function plays the first several seconds of each track or disc sequentially.
Playing the beginning of tracks (Track Scan)
Press the SCN button 4 to play the first several seconds of each track on the current disc in order.
Playing the beginning of disc (Disc Scan)
Press and hold the SCN button 4 for several seconds to play the first several seconds of each disc in the
magazine.
To cancel the track scan or disc scan mode, press SCN button 4 again.
REPEAT MODE .......................................................... 5
• Repeat tracks
Press the RPT button 5 to play the current track repeatedly.
• Repeat discs
Press and hold the RPT button 5 for several seconds to play the current disc repeatedly.
To cancel the track repeat or disc repeat mode, press the RPT button 5 again.
14
SHUFFLE MODE......................................................... 6
This function plays the tracks on one CD or all CDs in the magazine in random order.
“Shuffle-playing” tracks
Press the SHF button 6 to play the current disc in random order.
• “Shuffle-playing” discs
Press and hold the SHF button 6 for several seconds. The system selects a disc at random and plays all tracks
on that disc. When all tracks have been played, the next disc is selected and “Shuffle-playing” is repeated.
To cancel the track shuffle or disc shuffle mode, press the SHF button 6 again.
SELECTING A DISC................................................ 7,8
Press the DISC – button 7 to select the preceding disc.
Press the DISC + button 8 to select the next disc.
Note
Use with only SANYO CD Changer.
15
REMOTE CONTROL (OPTIONAL) FOR FXD-680GD, FXD-685GD
POWER VOL
TUN/TRK
VOL
LOUD AST
PAU SCN RPT
SHF
1
5
3
6
4
9
10
15
13
2
7
8
11
14
12
1.POWER
2. AUDIO
3. VOL
4. VOL
5. SOURCE
6. TUN/TRK
7. TUN/TR
K
9. BAND/LOUD
10.PAU
11.SCN
12.RPT
13.SHF
14.SOUND
15.1~6 Preset buttons
16
HINTS FOR PROPER AND SAFE OPERATION
Condensation
Moisture can condense on the optical lens of the CD player during humid or rainy days, or after the car heater is
turned on. If this occurs the disc player may not function properly. To remedy the situation, remove the disc from
the unit and wait approximately one hour. This should allow the moisture to evaporate and restore normal
operation.
Temperature Consideration
The unit may not operate correctly in extremely hot or cold temperatures. Avoid exposing the unit to extremely
high or low temperatures.
Interruptions in the sound (skipping)
When the car is driven on very rough surfaces, the sound from the CD player may skip and be interrupted. This
will not cause any damage to the disc or the player. If this occurs, wait for the road surface to improve before
using the CD player.
• Safety
For safer driving, keep the volume at a moderate level to enable you to hear outside sounds (such as
emergency vehicle sirens).
Cleaning the unit
Clean the unit with a soft, dry cloth. Stains should be removed by wiping the surfaces with a soft cloth immersed
in lukewarm water and wrung dry. Never use strong chemicals or solvents. These will damage the finish of the
unit.
• Disc care
When not using the disc player for extended periods, remove the compact disc and return it to the plastic
storage case. Do not leave a disc partially ejected from the player. If an ejected disc remains in the loading slot
for approximately 10 seconds, the player will reload the disc to prevent damage.
• Servicing
Should a problem develop, do not open the unit or try to repair it yourself. If servicing is required, bring the unit to a
Sanyo Authorized Service Center.
17
ELECTRICAL ADJUSTMENTS
DUMMY BOX SCHEMATIC
AM DUMMY ANTENNA
FM DUMMY ANTENNA
18
BLOCK DIAGRAM FOR FXD-680GD
19
BLOCK DIAGRAM FOR FXD-685GD
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Sanyo FXD-685GD User manual

Category
Car media receivers
Type
User manual
This manual is also suitable for

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