19.1. IC801 (MN101EF16ZXW) Servo Processor, Digital Signal
Processor/Digital filter and D/A Converter
20 Exploded Views
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59
60
20.1. Cabinet Parts Location
20.2. Packaging
21 Replacement Parts List
SC-EN35P / SC-EN35 PC
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1 Safety Precautions
1.1. General Guidelines
1. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
2. After servicing, ensure that all the protective devices such as insulation barriers and insulation papers shields are properly
installed.
3. After servicing, check for leakage current checks to prevent from being exposed to shock hazards.
(This “Safety Precaution” is applied only in U.S.A.)
1. Before servicing, unplug the power cord to prevent an electric shock.
2. When replacing parts, use only manufacturer’s recommended components for safety.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent the
customer from being exposed to a shock hazard.
1.1.1. Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. Using an ohmmeter measure the resistance value, between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1MΩ and 5.2MΩ.
When the exposed metal does not have a return path to the chassis, the reading must be
.
1.1.2. Leakage Current Hot Check (See Figure 1)
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5kΩ, 10 watts resistor, in parallel with a 0.15µF capacitor, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each expose d metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent) may
be used to make the hot checks, leakage current must not exceed 1/2 milliamp. Should the measurement is out of the limits
specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is returned to
the customer.
Fig. 1
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1.2. Caution for fuse replacement
1.3. Before repair and adjustment
Disconnect AC power, discharge Power Capacitors C611 and C616 through a 10Ω, 1W resistor to ground.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
Current consum ption at AC 120V, 60 Hz in NO SIGNAL mode (volume min at CD mode) should be ~ 135mA .
1.4. Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
·No sound is heard when the power is turned on.
·Sound stops during a performance.
The function of this circuitry is to prevent circuitry damage if, for example, the positive and negative speaker connection wires are
“shorted”, or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outline s below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note :
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
1.5. Safety Parts Information
Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by
should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the original design
without permission of manufacturer.
Reference No.Part No.Part Name & DescriptionRemarks
in the Schematic Diagrams & Replac ement Parts List. It is essential that these critical parts
Table 1
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2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equiped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applyin g power to the unit under test.
2. After removing an electrical assembly equiped with ES devices, place the assembly on a conductive surface such as aluminium
foil, to prevent electrostatic charge build up or exposu re of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an anti-static solder remover device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge to damage ES devices.
5. Do not use freon-propelle d chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminium foil or
comparable conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
Caution
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize body motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing
together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) sufficient to
damage an ES device).
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3 Precaution of laser diode
CAUTION:
This unit utilizes a class 1 laser diode in the optical pickup unit .
Invisible laser radiation is emitted from the optical pickup lens.
Wavelength: 780nm
When the unit is turned on:
1. Do not look directly into the optical pickup lens.
2. Do not use optical instruments to look at the optical pickup lens.
3. Do not adjust the preset variable resistor on the optical pickup lens.
4. Do not disassemble the optical optical pickup unit.
5. If the optical pickup is replaced, use the manufacturer’s specified replacement pickup only.
6. Use of control or adjustments or performance of procedures other than those specified herein may result in hazardous radiation
exposure.
CAUTION!
THIS PRODUCT UTILIZES A LASER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
n Use of caution label (Except for U.S.A.)
4 Handling Precautions For Traverse Unit
The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by the static electricity of
clothes or our human body.
So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).
·Way of handling the traverse deck (optical pickup)
1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board). (Fig. 1)
3. Take care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish
the job in as short time as possible.
4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted.
Grounding for electrostatic breakdown prevention
1. Human body grounding. (Fig. 2)
Use the anti-static wrist strap to discharge the static electricity from your body.
2. Work table grounding. (Fig. 2)
Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, and ground the
sheet.
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Caution :
The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the
traverse deck (optical pickup).
Caution when replacing the Traverse Deck
The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to
remove the solder from the short point before making connections.
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5 About Lead Free Solder (PbF)
5.1. Service caution based on legal restrictions
5.1.1. General description about Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this
equipment in considering the globally environmental conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that
of the normal solder.
Definition of PCB Lead Free Solder being used
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)
Service caution for repair work using Lead Free Solder (PbF)
· The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)
·To put lead free solder, it should be well molten and mixed with the original lead free solder.
·Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.
·Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt
the lead free solder.
· Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30
degrees C (662±86°F).
Recommended Lead Free Solder (Service Parts Route.)
· The following 3 types of lead free solder are available through the service parts route.
RFKZ03D01K-----------(0.3mm 100g Reel)
RFKZ06D01K-----------(0.6mm 100g Reel)
RFKZ10D01K-----------(1.0mm 100g Reel)
Note
* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
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6 Accessories
Remote Control
AC Cord
FM/AM Antenna
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7 Operation Procedures
7.1. Remote Control Key Buttons Operations
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7.2. Main Unit Key Buttons Operations
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7.3. Connection
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7.4. Using the XM® Satellite Radio
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8 Self diagnosis and special mode setting
This unit is equipped with feature s of self-diagnostic & special mode setting for checking the functions & reliability.
8.1. Service Mode Summary Table
The service mode can be activated by pressing various button combination on the main unit and remote control unit. Below is the
summary for the various modes for checking:-
Player buttonsRemote control unit buttonsApplicationNote
[][4], [7]To enter into doctor mode for various item
checking.
ModeRemote control unit buttonsApplicationNote
Doctor Mode[DIMMER]FL ALL Segment inspection(Refer to the section 8.2 for more
[7], [8], [9]Forced VOL setting(Refer to the section 8.2 for more
[], [1], [1]CD Loading Test(Refer to the section 8.2 for more
[], [1], [2]CD Traverse Test(Refer to the section 8.2 for more
[], [1], [3]CD Combination Test(Refer to the section 8.2 for more
[], [1], [4]CD Auto Adjustment Display(Refer to the section 8.2 for more
[SLEEP]Cold Start setting(Refer to the section 8.2 for more
(Refer to the section 8.2 for more
information.)
information.)
information.)
information.)
information.)
information.)
information.)
information.)
8.2. Service Mode Table 1
Below is the various special modes for checking:-
ItemFL DisplayKey Operation
Mode NameDescriptionFront Key
Self-Diagnostic
Mode
To enter into self diagnostic checking
for main unit.
1. Select [CD] for CD mode (Ensure
no CD inserted.)
2. Press and hold [
seconds follow by [FF]
To exit, press [
main unit or remote control.
] button for 2
] button on
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ItemFL DisplayKey Operation
Mode NameDescriptionFront Key
Doctor ModeTo enter into Doctor Mode for
checking of various items and
displaying EEPROM and firmware
version.
Note: The micro-processor version as
shown is an example. It will be revise
when there is an updates.
DIsplay 1
In any mode:
1. Press [
follow by [4] and [7] on remote
control.
To exit, press [
main unit or remote control.
FL Display sequence
Display 1 → 2
Checksum (Condition 1)
When EEPROM IC detected and has ROM
correction.
Checksum (Condition 2)
When EEPROM IC is detected and there is
no ROM correction.
SC-EN35P / SC-EN35 PC
] button on main unit
] button on
FL Display TestTo check the FL segments display (All
segments will light up)
Checksum (Condition 3)
When EEPROM IC is detected and has ROM
correction but not working properly.
Display 2
The Check Sum of EEPROM and firmware
version will be display for 1 sec.
* ROM correction
** Firmware version No:
In doctor mode:
1. Press [DIMMER] button on remote
control.
To exit, press [
] button on
main unit or remote control.
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Mode NameDescriptionFront Key
Volume Setting
Mode
ItemFL DisplayKey Operation
To check for the volume setting of the
main unit. The volume will be
automatically set to its respective
level (in dB). During the mode,
trebble/bass/EQ will be set to “0” dB
& OFF.
In doctor mode:
1. Press [7] button on remote control.
2. Press [8] button on remote control.
CD Loading Test
Mode
CD Traverse Unit
Test Mode
CD Combination
Test Mode
To determine the reliability of CD
Loading unit.
To check for the Open/Close
operation for the CD loading unit. It
fails when there is abnormality in
opening or closing.
To check for the traverse unit
operation. In this mode, the first & last
track is access & read. (TOC). It fails
when TOC is not completed by IOS or
the traverse is out of focus.
A combination of CD loading &
traverse unit test.
The counter will increment by 1 until reach
9999999
↓
The counter will increment by 1 until reach
9999999
↓
The counter will increment by 1 until reach
9999999
↓
3. Press [7] button on remote control.
To exit, press [
main unit or remote control.
In doctor mode:
1. Press [
remote control.
To cancel, press [0] button remote
control.
To exit, press [
main unit or remote control.
In doctor mode:
1. Press [
remote control.
To cancel, press [0] button remote
control.
To exit, press [
main unit or remote control.
In doctor mode:
1. Press [
remote control.
To cancel, press [0] button remote
control.
To exit, press [
main unit or remote control.
], [1] & [1] button on
], [1] & [2] button on
], [1] & [3] button on
] button on
] button on
] button on
] button on
CD Auto
Adjustment
Display
Cold StartTo activate cold start upon next AC
To display result of self adjustment for
CD.
For more information, please refer to
Section 8.2.1.
The [NO DISC] display will appear after 3s,
power up.
8.2.1. CD Self-Adjustment (AJST) Result Display
Purpose: To display result of self-adjustment for CD.
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In doctor mode:
1. Press [
remote control.
To cancel, press [0] button remote
control.
To exit, press [
main unit or remote control.
In doctor mode:
1. Press [SLEEP] button on remote
control.
To exit, press [
↓
main unit or remote control.
], [1] & [4] button on
] button on
] button on
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Below is the procedures for this mode.
Step 1: Enter into Doctor mode (For more information refer to section 8.2 on key operation to enter into this mode).
Step 2: When [
], [1] & [4] are pressed at the doctor mode, the following shall be display ed for 3s. The result shall correspond
to the condition met as shown in the table below:
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8.3. Error Code Table 1
8.3.1. Mechanism Error Code Table
Self-Diagnosis Function provides information on any problems occuring for the unit and its respective components by displaying
error codes. These error code such as U**, H** and F** are stored in memory and held unless it is cleared.
The error code is automatically display after entering into self-diagnostic mode.
Error CodeDiagnosis Contents Description of errorAutomatic FL DisplayRemarks
F15CD REST SW
abnormal
F26Communication
between CD servo
LSI and micro-p
abnormal.
F76Abnormality in the
output voltage of
stabilized power
supply.
CDtraverseposition
initial setting operation
failsafecounter
(1000ms)waitingfor
REST SW to turn on.
Error no. shall be clear
by force or during cold
start.
CDfunctionDTMS
command, after system
setting, if SENSE = “L”
cannotbedetected.
Memory shall contain
F26code. After power
on, CD function shall
continue, error display
shall be “NO DISC”.
Error no. shall be clear
by force or cold start.
Innormaloperation
when“DCDET”is
detected “L” (IOIO) for
two consecutive times,
this error code will be
displayed for 2s & after
PCONT will be turned to
“L” (Low).
For CD unit.(For traverse).
Press [
For CD unit.(For traverse).
Press [
Press [] on main unit for next error.
] on main unit for next error.
] on main unit for next error.
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8.3.2. XM Satellite Radio Code Table
Error CodeDiagnosis Contents Description of errorAutomatic FL DisplayRemarks
XM RADIOXM Radio SelectionIt takes a short time for
ANTENNAXM connectivityThe XM antenna is not
UPDATINGXM Encryption Code 1) The XM antenna is
NO SIGNALXM Signal receptivity The XM antenna is too
OFF AIRXM Channel
Broadcasting
the XM radio to power up
afterselectingthe
source on the main unit.
During this time, the FL
displayshowsthe
message. Wait for a few
seconds for the process
to complete, if not, check
on the XM antenna if it is
connected or damaged.
properly connected or
the antenna cable is
damaged.
being updated with the
latest encryption code.
(Wait for few seconds for
theupdatingtobe
completed.)
2) The selected XM
channelhasbeen
blocked, or is no longer
availablewiththe
subscription package.
TheselectedXM
channel is not currently
broadcasting
information.
(Flashing)
For more information, refer to operating
instruction manual for connection of
antenna.
(Flashing)
(Flashing)
For more information, refer to operating
instruction manual for optimizing the
signal reception.
(Flashing)
For more information, refer to operating
instruction manual for selection of the
channels.
(Flashing)
XM ---XM Channel
Broadcasting
XM ERRORXM Module
Abnormality
TheselectedXM
channel is not available.
Selection of a diffrent
channels.
The XM radio module is
performing abnormally.
Turn the main unit off
and power on. The XM
antennamaybe
defective.
(Flashing)
(Flashing)
Special Note: XM Satellite Radio ID is necessary for the activation of the XM Satellite Radio.
For more information, refer to operating
instruction manual for selection of the
channels.
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9 Assembling and Disassembling
9.1. Caution
“ATTENTION SERVICER”
Some chassis components may have sharp edges. Be careful when disassembling and servicing.
1. This section describes procedures for checking the operation of the major printed circuit boards and replacing the main
components.
2. For reassembly after operation checks or replacement, reverse the respective procedures.
Special reassembly procedures are described only when required.
3. Select items from the following index when checks or replacement are required.
4. Refer to the Parts No. on the page of “Parts Location and Replacement Parts List” (Section 21), if necessary.
Warning :-
This product uses a laser diode. Refer to caution statement Precaution of Laser Diode.
Below is the list of disassembly sections
·Disasse mbly of Rear Cabinet
·Disasse mbly of XM Module P.C.B.
·Disasse mbly of Panel P.C.B. & LCD P.C.B.
·Disasse mbly of Main P.C.B., Sensor P.C.B. & Tuner P.C.B.
·Disasse mbly of Switch P.C.B. & Traverse Unit
·Disasse mbly of Power Switch P.C.B. & Tact Switch P.C.B.
·Replacement of Traverse Cover
·Disasse mbly of CD Servo P.C.B.
·Disasse mbly of Motor Unit & Motor P.C.B.
·Disasse mbly of CD Block & CD Lid
·Disasse mbly of Speak ers
Below shown is part no. of different screws types used:
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9.2. Disassembly flow chart
The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the
servicing.
To assemble the unit, reverse the steps shown in the chart as below.
9.2.1. For Main unit
9.2.2. For Speaker unit
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9.3. Main Components & P.C.B. Locations
9.3.1. Main Parts Locations
SC-EN35P / SC-EN35 PC
9.3.2. Speaker Unit Parts Location (For SB-EN35A only)
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9.4. Disassembly of Rear Cabinet
Step 1 Remove 10 screws.
Step 2 Lift up the rear cabinet.
Step 3 Detach cable (FP601) on Main P.C.B. and remove the
rear cabinet as arrow shown.
9.5. Disassembly of XM Module P.C.B.
·Follow the (Step 1) - (Step 2) of Item 9.4 - Disassembly of Rear Cabinet
Step 1 Remove 2 screws.
9.6. Disassembly of Panel P.C.B. & LED P.C.B.
·Follow the (Step 1) - (Step 2) of Item 9.4 - Disassembly of Rear Cabinet
Step 1 Remove 2 screws on the LCD Holder unit.
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Step 2 Detach cable (P801).
9.7. Disassembly of Main P.C.B., Sensor P.C.B. & Tuner P.C.B.
·Follow the (Step 1) - (Step 2) of Item 9.4 - Disassembly of Rear Cabinet
Step 3 Lift up the Main P.C.B. Sensor P.C.B. and Tuner P.C.B.
SC-EN35P / SC-EN35 PC
9.8. Disassembly of Switch P.C.B. & Traverse Unit
·Follow the (Step 1) - (Step 3) of Item 9.4 - Disassembly of Rear Cabinet
·Follow the (Step 1) - (Step 3) of Item 9.7 - Disassembly of Main P.C.B., Sensor P.C.B. & Tuner P.C.B.
Step 1 Remove 4 screws.
Step 2 Remove 2 screws on Switch P.C.B..
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9.9. Disassembly of Power Switch P.C.B. & Tact Switch P.C.B.
·Follow the (Step 1) - (Step 3) of Item 9.4 - Disassembly of Rear Cabinet
·Follow the (Step 1) - (Step 2) of Item 9.6 - Disassembly of Panel P.C.B. & LED P.C.B.
Step 1 Detach cable (P802) on Main P.C.B..
Step 2 Remove 3 screws.
Step 3 Release 1 claw to remove front ornament.
Step 4 Release 6 catches to remove Power P.C.B. & Tact
Switch P.C.B..
·Assemble of Front Ornament into slot.
Ensure front ornament fully insert to front cabinet.
9.10. Replacement of Traverse Cover
·Follow the (Step 1) - (Step 3) of Item 9.4 - Disassembly of Rear Cabinet
·Follow the (Step 1) - (Step 2) of Item 9.7 - Disassembly of Main P.C.B. , Sensor P.C.B. & Tuner P.C.B.
·Follow the (Step 1) of Item 9.8 - Disassembly of Switch P.C.B. & Traverse Unit
Step 1 Release 3 catches and remove the Traverse Cover.
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Step 2 Pull out FFC.
SC-EN35P / SC-EN35 PC
Step 3 Widening the catch, push the fixed pin in. (a) → (b)
Step 4 Lift up the traverse unit to remove it.
Caution:
Keep the floating springs (x 4) in safe place & avoid losing
them.
9.11. Disassembly of CD Servo P.C.B.
·Follow the (Step 1) - (Step 3) of Item 9.4 - Disassembly of Rear Cabinet
·Follow the (Step 1) - (Step 2) of Item 9.7 - Disassembly of Main P.C.B. , Sensor P.C.B. & Tuner P.C.B.
·Follow the (Step 1) of Item 9.8 - Disassembly of Switch P.C.B. & Traverse Unit
·Follow the (Step 1) - (Step 4) of Item 9.10 - Replacement of Traverse Cover
Step 1 Desolder the terminal.
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Step 2 Remove 3 screws.
Step 3 Flip the CD Servo P.C.B. over to one side.
Step 4 Detach FFC out from the connector.
Step 5 Attach a short pin to the unit.
Caution:
Insert a short pin into FFC of the optical pickup. [See “Handling
Precautions for traverse unit”].
9.12. Disassembly of Motor Unit & Motor P.C.B.
·Follow the (Step 1) - (Step 3) of Item 9.4 - Disassembly of Rear Cabinet
·Follow the (Step 1) - (Step 2) of Item 9.7 - Disassembly of Main P.C.B. , Sensor P.C.B. & Tuner P.C.B.
Step 1 Remove 3 screws.
Step 4 Remove the belt.
Step 5 Remove pulley gear, 2nd gear and drive gear.
·Disassembly of motor assembly (gears & belt)
Step 2 Remove motor assembly.
Step 3 Remove 2 screws.
Step 6 Remove 2 screws at motor unit.
Step 7 Remove 1 screw and unsolder 3 points at gear base.
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9.13. Disassembly of CD Block & CD Lid
·Follow the (Step 1) - (Step 3) of Item 9.4 - Disassembly of Rear Cabinet
·Follow the (Step 1) - (Step 2) of Item 9.7 - Disassembly of Main P.C.B. , Sensor P.C.B. & Tuner P.C.B.
·Follow the (Step 1) of Item 9.8 - Disassembly of Switch P.C.B. & Traverse Unit
·Follow the (Step 1) of Item 9.11 - Disassembly of Motor Unit & Motor P.C.B.
Step 1 Remove 6 screws to remove CD Block Unit.
Step 3 Remove 4 screws, remove sw lever (left) and roller
guide (R).
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Step 2 Remove 2 screws.
Step 4 Remove cd lid.
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9.14. Disassembly of Speakers
9.14.1. Disassembly of the speaker (SB-EN35) - (R)
Step 1 Remove 6 screws.
Step 2 Remove the back cabinet ass’y..
Step 4 Remove 4 screws.
· Disasse mbly of net frame ass’y
Step 5 Remove 4 screws.
Step 3 Unsolder the lead wires, silver (-) and gold (+).
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9.14.2. Disassembly of the rear cabinet (SB-EN35A) - (L)
SC-EN35P / SC-EN35 PC
Step 1 Remove 6 screws.
Step 2 Remove the back cabinet ass’y..
Step 3 Unsolder the lead wires.
Step 4 Remove 4 screws.
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· Disasse mbly of net frame ass’y
Step 5 Remove 4 screws.
· Remova l of Transformer P.C.B.
Step 1 Remove 1 screw on back cabine t assy.
Step 2 Remove 3 screws to remove the port unit.
Step 3 Remove 4 screws on Transformer P.C.B. unit.
Step 4 Unsolder wire and remove Transformer P.C.B..
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SC-EN35P / SC-EN35 PC
10 Service Fixture and Tools
Service Tools
Extension FFC
(A) CD Servo P.C.B. - Main P.C.B.REEX0485 (14 Pins)
11 Service Positions
General proceduree:
Connect the DC in cord cable from (SB-EN35A) to main set, connect AC power supply cord to speaker to on the set. Load in cd
and switch off the set. Proceed to checking.
Note: For description of the disassembly procedures, see the Section 9.
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SC-EN35P / SC-EN35 PC
11.1. Check and Repair of CD Servo P.C.B.
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SC-EN35P / SC-EN35 PC
11.2. Check and repair of Main P.C.B., Sensor P.C.B., Tuner P.C.B., Motor
P.C.B., Panel P.C.B., LED P.C.B., Power Switch P.C.B., Tact Switch
P.C.B., XM Module P.C.B. & Switch P.C.B.
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SC-EN35P / SC-EN35 PC
12 Voltage and Waveform Chart
Note:
Circuit voltage and waveform described herein shall be regarded as reference information when probing defect point, because it
may differ from an actual measuring value due to difference of Measuring instrument and its measuring condition and product itself.
12.1. Main P.C.B.
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12.2. CD Servo P.C.B.
SC-EN35P / SC-EN35 PC
12.3. Motor P.C.B.
12.4. Panel P.C.B.
12.5. Tuner P.C.B.
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SC-EN35P / SC-EN35 PC
12.6. Waveform Chart
36
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13 Wiring Connection Diagram
SC-EN35P / SC-EN35 PC
HEADPHONE
SPEAKER
TRANSFORMER
JW806
1
2
PbF
JK601
JK602
JK604
PbF
E
PANEL P.C.B
SOLDER SIDE
1 2
P802
D
P351
5
. . .
1
1 . . . . . 91 . 3
P801
MAIN P.C.B
SOLDER SIDE
P352
JW1
17
16
. . . . .
2
1
. . . . . . . . .
11
. . . . . . .
1
FP601
P601
6 . . . . 1
PbF
TRANSFORMER P.C.B
L
SOLDER SIDE
JW802
1 . . . . . . 9
FP701
1 . . . . . . . . . 21
2. . . . . . . . . 22
PbF
JW1
1
. . . . . . . . .
11
TUNER CIRCUIT P.C.B
C
SOLDER SIDE
PbF
XM
JK1
XM MODULE P.C.B
B
SOLDER SIDE
(SIDE B)
1
.
AM/FM
P1
3
ANTENNA
17
16
. . . . .
. . . . . . .
2
1
FP1
JK901
AC IN
120V 60HZ
LED P.C.B
F
SOLDER SIDE
PbF
PbF
JW8001
2 1
TACT SWITCH P.C.B
H
SOLDER SIDE
6 . . . . 1
JW601
PbF
SENSOR P.C.B
K
SOLDER SIDE
POWER SWITCH
G
P.C.B
SOLDER SIDE
PbF
JW804
JW803
121
2
MUSIC PORT
JK603
JW805
I
1
2
SWITCH CIRCUIT
P.C.B
SOLDER SIDE
JW352
3 . 1
MOTOR CIRCUIT
J
P.C.B
SOLDER SIDE
1
. . .
5
PbF
JW351
PbF
CAUTION
RISK OF ELECTRIC SHOCK
AC VOLTAGE LINE.
PLEASE DO NOT TOUCH
THIS P.C.B
Componentsidentifiedby
characteristics important for safety.
Furthermore, special parts which have purposes of fireretardant (resistors), high-quality sound (capacitors), lownoise (resistors), etc. are used.
When replacing any of components, be sure to use only
manufacturer´s specified parts shown in the parts list.
· Capacitor values are in microfarad(µF) unless specified
otherwise, F=Farad, pF=Pico-Farad
Resistance values are in ohm(Ω), unless specified
otherwise, 1K=1,000Ω , 1M=1,000KΩ
)
markhavespecial
)
)
)
)
)
)
)
SC-EN35P / SC- EN35PC
· Voltage and Signal lines:
: +B Signal line
: -B Signal line
: CD-DA signal line
: CD signal line
: Main signal line
: XM/FM/AM signal line
: AM signal line
: FM signal line
: AUX signal line
43
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SC-EN35P / SC- EN35PC
44
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16 Schematic Diagram
(All schematic diagrams may be modified at any time with the development of the new technology)
Furthermore, special parts which have purposes of fire-retardent (resistors), high-quality sound (capacitors), low noise
(resistors), etc are used.
When replacing any of these components, be sure to use only manufacturer’s specified parts shown in the parts list.
· The parenthesized indications in the Remarks columns specify the areas or colour. (Refer to the cover page for area or colour)
Parts without these indications can be used for all areas.
·Warning: This product uses a laser diode. Refer to caution statements on “Precaution of Laser Diode”.
·Capacitor values are in microfarads (µF) unless specified otherw ise, P= Pico-farads (pF), F= Farads.
·Resistance values are in ohms, unless specified otherwise, 1K=1,000 (OHM).
·The marking (RTL) indicates that the Retention Time is limited for this items. After the discontinuation of this assembly in
production, the item will continue to be available for a specific period of time. The retention period of a availability is dependent
on the type of assembly, and in accordance with the laws governing part and product retention. After the end of this period, the
assembly will no longer be available.
·[M] Indicates in the Remarks columns indicates parts supplied by PAVCSG.
·Reference for O/I book languages are as follows:
Ar:ArabicDu:DutchIt:ItalianSpSpanish
Cf:Canadian FrenchEn:EnglishKo:KoreanSw:Swedish
Cz:CzechFr:FrenchPo:PolishCo:Traditional Chinese
Da:DanishGe:GermanRu:RussianCn:Simplified Chinese
Pe:PersianUr:Ukraine
mark have special characteristics important for safety.
Ref. No.Part No.Part Name & DescriptionRemarks
CABINET AND CHASSIS
1RDG0612PULLEY GEAR[M]
2RDGV00012ND GEAR[M]
3RDGV0002DRIVE GEAR[M]
4RDGV0003LID GEAR[M]
5RFKPAEN25PSMOTOR ASS’Y[M]
6REEV015022P CD SERVO FFC[M]
8RFKLAEN35P-K CD LID ASS’Y A/B[M]
8-1RDPV0001LID ROLLER[M]
8-2RMG0699-KJLID CUSHION[M]
8-3RHD14136SCREW[M]
9RFKGAEN35P-K FRONT PANEL ASS’Y[M]