Panasonic SC-TM900DVD User manual

Modelo: SC-TM900DVD
Service Manual
SA-TM900DVD SA-TM900DVD
SA-TM900
SB-TM900
SB-TM900DVD
SC-TM900DVD
SB-PC92
SB-PS92
SB-PS92
SB-PC92
SB-PS92
SB-TM900 SB-TM900
Gracias por la adquisición de este Sistema Estéreo.
Antesdeoperarlo,leacuidadosamenteesteinstructivo
y consérvelo a la mano para consultas posteriores.
Información para la región DVD
Este DVD esta diseñado y manufacturado para
responder a una región de reproducción de DVD.
Si la región del disco DVD no corresponde a la
región del sistema reproductor de discos DVD,
este no podrá reproducirlo.
El número de región para este Sistema Estéreo
reproductor de DVD es región número: 4.

POTENCIA DE SALIDA (AMPLIFICADOR)
SC-TM900DVD Frontal (Alto) 95 W RCM por canal (4Ω) 1kHz, 10% DAT
(Bajo) 95 W RCM por canal (4Ω) 100Hz, 10% DAT
Surround 65 W RCM por canal (4Ω)1kHz, 10% DAT
Surround 75 W RCM por canal (4Ω) 1kHz, 10% DAT
Central 80 W RCM por canal (4Ω) 1kHz, 10% DAT
Central 100 W RCM por canal (4Ω)1kHz, 10% DAT
Subwoofer 50 W RCM por canal (8Ω) 100Hz, 10% DAT
Frontal (Alto) 95 W RCM por canal (4Ω) 1kHz, 10% DAT
(Bajo) 95 W RCM por canal (4Ω) 100Hz, 10% DAT
SC-TM1000DVD
UNIDAD PRINCIPAL
POTENCIA DE SALIDA: 6000 W (P.M.P.O.)
390 W
127 V ca ±10% 60 Hz
250 mV
520 - 1710 kHz (paso de 10 kHz)
87.9 - 107.9 MHz (paso de 0,2 MHz)
87.5 - 108.0 MHz (paso de 0,1 MHz)
8000 W (P.M.P.O.)
450 W
CONSUMO DE POTENCIA:
ALIMENTACION:
SENSIBILIDAD AUX:
RANGO DE SINTONIA AM:
RANGO DE SINTONIA FM:
DIMENSIONES (b x h x l)
PESO:
SA-TM900DVD SA-TM1000DVD
ESPECIFICACIONES POR CADA BAFLE
FRONTAL SURROUND SUBWOOFER
Bocina Super Woofer
Bocina Woofer
Bocina Tweeter
Super Tweeter
Alto 4 Ω, Bajo 4 Ω4 Ω4 Ω8 Ω
CENTRAL
SB-TM900/1000DVD SB-PS92 SB-WTM1000 SB-PC92
20 cm
12 cm
6 cm
- - - - -
8 cm
6 cm
- - - - -
16 cm x 2
- - - - -
- - - - -
8 cm x 2
- - - - -
Piezo type
IMPEDANCIA DE ENTRADA
Dimensiones (b x h x l) 250 mm x 429 mm x 318.5 mm 140 mm x 330 mm x 155.8 mm 200 mm x 429 mm x 428 mm 409 mm x 104 mm x 155.5 mm
6.9 kg aprox. 1.3 kg aprox. 6.8 kg aprox. 1.5 kg aprox.
9.2 kg aprox.
250 mm x 330 mm x 348 mm
Peso
SC-TM1000DVD
Especificaciones técnicas
(El peso y las dimensiones son de un solo bafle)

1 Before Use (Caution) 3
2 Before Repair and Adjustment 3
3 Protection Circuitry 3
4 Safety Precautions 4
5 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 5
6 Handling the Lead-free Solder 5
7 Precaution of Laser Diode 6
8 Cautions to be taken when handling Optical Pickup 7
9 Accessories 8
10 Operation Procedures 9
11 Disc information 11
12 About HighMAT 13
13 Optical Pickup Self-Diagnosis and Replacement Procedure 17
14 Self-Diagnosis Function 18
15 Cautions To Be Taken During Servicing 23
16 Disassembly and Assembly of Main Component 25
17 Checking for major P.C.Bs 59
18 Measurements and Adjustments 63
19 Block Diagram 66
20 Voltage Measurement 77
21 Schematic Diagram 78
22 Printed Circuit Board 105
23 Wiring Connection Diagram 117
24 Illustration of ICs, Transistors and Diodes 119
25 Terminal Function of IC 121
26 Parts Location and Replacement Parts List 123
CONTENTS
Page Page
1 Before Use (Caution)
Be sure to disconnect the mains cord before adjusting the voltage selector.
Use a minus(-) screwdriver to set the voltage selector (on the rear panel) to the voltage setting for the area in which the unit will
be used. (If the power supply in your area is 117V or 120V, set to the “127V” position.)
Note that this unit will be seriously damaged if this setting is not made correctly. (There is no voltage selector for some countries,
the correct voltage is already set.)
2 Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C5815, C5818, C9513, C9533, C9534, C9816 and C9817 through a
10Ω, 5W 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 consumption at AC 100/110V at 50/60 Hz & AC 240V at 50Hz in NO SIGNAL (vol. min, at CD mode) should be ~500mA
.
3 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 outlines 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.
3

4 Safety Precautions
4.1. 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, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3.After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
4.1.1. Leakage Current Cold Check
1.Unplug the AC cord and connect a jumper between the two prongs on the plug.
2.Measure the resistance value, with an ohmmeter, 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 1MΩand 5.2MΩ.
When the exposed metal does not have a return path to the chassis, the reading must be .
Figure 1
4.1.2. 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 exposed 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. In case a 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.
4

5 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-equipped 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 applying power to the unit under test.
2.After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as
aluminium foil, to prevent electrostatic charge build up or exposure 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-propelled 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).
6 Handling the Lead-free Solder
6.1. About lead free solder (PbF)
Distinction of PbF P.C.B.:
P.C.B.s (manufactured) using lead free solder will have a PbF stamp on the P.C.B.
Caution:
• ••
•
Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please
use a high temperature soldering iron. In case of soldering iron with temperature control, please set it to 700 ± 20°F (370 ±
10°C).
• ••
•
Pb free solder will tend to splash when heated too high (about 1100°F/600°C).
• ••
•
When soldering or unsoldering, please completely remove all of the solder on the pins or solder area, and be sure to heat the
soldering points with the Pb free solder until it melts enough.
5

7 Precaution of Laser Diode
Caution :
This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens.
Wavelength : 785 nm(CD)/662 nm(DVD)
Maximum output radiation power from pick up : 100 µW/VDE
Laser radiation from pick up unit is safety level, but be sure the followings:
1.Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.
2.Do not adjust the variable resistor on the pick up unit. It was already adjusted.
3.Do not look at the focus lens using optical instruments.
4.Recommend not to look at pick up lens for a long time.
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.
nUse of Caution Labels
6

8 Cautions to be taken when handling Optical Pickup
The laser diode used inside optical pickup could be destroyed due to static electricity as a potential difference is caused by
electrostatic load discharged from clothes or human body. Handling the parts carefully to avoid electrostatic destruction during
repair.
8.1. Handling Optical Pickup
1.Do not impact on optical pickup as the unit structurally uses an extremely precise technology.
2.Short-circuit the flexible cable of optical pickup remove from the circuit board using a short-circuit pin or clip in order to prevent
laser diode from electrostatic destruction (Refer to Fig. 8.1 and Fig. 8.2)
3.Do not handle flexible cables forcibly as this may cause snapping. Handle the parts carefully (Refer to Fig. 8.1)
4.A new optical pickup is equipped with an anti-static flexible cable. After replacing and connecting to the flexible board, cut the
anti-static flexible cable. (Refer to Fig. 8.1)
Fig. 8.1
8.2. Replacing Precautions for Optical Pickup Unit
DVD/CD Optical Pickup
The optical pickup by which part supply was carried out attaches the short clip to the flexible board for laser diode electrostatic
discharge damage prevention. Please remove the short clip and be sure to check that the short land is open, before connecting.
(Please remove solder, when the short land short-circuits.)
8.3. Grounding for Preventing Electrostatic Destruction
1.Human body grounding
Use the anti-static wrist strap to discharge the static electricity accumulated in your body. (Refer to Fig. 8.2)
2.Work place grounding
Place a conductive material (conductive sheet) or iron board where optical pickup is placed. (Refer to Fig. 8.2)
Note :
Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes.
Fig. 8.2
7

9 Accessories
Remotecontrol N2QAJB000143
ACcord SJA168-1A
FMantenna RSA0006-J
AMantenna N1DAAAA00001
Videocable K2KA2BA00001

10 Operation Procedures
9

10

11 Disc information
11

12

12 About HighMAT
12.1. What’s HighMAT?
Consumers worldwide are using PCs to create their own collections of music, photos and even video by burning them onto CDs.
But how these collections can be experienced across different devices can be confusing to navigate, time consuming to access for
a DVD player, and be incomplete in terms of music information available to the customer.
HighMAT offers a solution to this growing consumer problem. HighMAT dramatically improves the digital media experience on
consumer electronic devices by delivering a simple, standardized approach that allows consumers who have created personal
collections of digital music, photography and video on their PC to:
>> Create a HighMAT CD or DVD which can be easily played back on consumer electronics devices such as CD and DVD players,
and car stereos.
>> Move digital media files (using recordable media such as CD-R and CD-RW) between the PC and various playback devices
such as CD and DVD players.
A new standard for creating personal media on consumer electronic devices, HighMAT enable easier and more seamless
interoperability between Windows PCs and devices designed for your living room, or the car.
12.2. Why take advantage of HighMAT?
A Problem Defined:Today, when consumers create their own digital audio, video or photo collections on CD-R or other physical
formats, there are numerous, inconsistent ways that devices read the data. For the consumer, the playback experience can be
confusing:
13

A Solution Created: HighMAT delivers a better digital media access experience by creating a standard approach for PCs to
structure digital media on various physical formats and for playback devices to read the data.
12.3. Benefits of HighMAT?
Conventional HighMAT
Even though DVD player is CD-R/RW compatible, the inconsistent ways
that various DVD players can read the music or photos files often leads
to a confusing and inconsistant playback experince.
HighMAT compatible products play content back with consistent
interface. This includes products which are JPEG compatible products
without HighMAT support.
14

15

HighMAT is now available for CD Burning and in Leading DVD PlayersHighMAT is a new technology that is now available in leading
software and consumer electronic devices to dramatically improve the digital media experience when you create homemade
CDsHighMAT delivers a simple, standardized way for PC software and consumer electronics devices to talk to each other and work
better together.
When you create your homemade CDs with software that supports HighMAT CD burning, and then play them back on a DVD
player that supports HighMAT, you get better, easier navigation. You get folders you can access with a single click of your DVD
player´s remote control. You can view important information about your music like full song names, artist titles, album names and
genre. And you can get faster startup on your home entertainment device.
To enjoy the benefits of HighMAT, all you need is software that supports HighMAT for CD burning of music or photos, as well as
a home entertainment device like a DVD player that supports HighMAT for playback. Always look for the HighMAT logo on your
software or home entertainment device to ensure it supports the HighMAT experience.
16

13 Optical Pickup Self-Diagnosis and Replacement
Procedure
13.1. Optical Pickup Breakdown diagnosis
This unit is equipped with the optical pickup self-diagnosis function and the tilt adjustment check function. Follow the procedure
described below during repair in order to perform self-diagnosis and tilt adjustment effectively. Especially when “NO DISC” is
displayed, be sure to apply the self-diagnosis function before replacing with an optical pickup. Replacement of optical pickup
generally requires when the present value of laser drive exceeds 45 (DVD) or 45 (CD).
Note:
Start diagnosis within three minutes after turning on the power (as diagnosis fails when the unit becomes warm).
17

14 Self-Diagnosis Function
This unit is equipped with the self-diagnosis function, which displays an error when it occurs, for use during servicing.
14.1. Entering into Self-Diagnostic Mode
14.2. Automatic Displayed Error Codes
14.2.1. Automatic Display Function
For a power unit error, the code is automatically displayed.
F61: Automatically displayed on the LCD of the player.
14.2.2. Re-Display
• ••
•
For F61 Display
− −−
−
When the code, F61 is displayed, the power is automatically turned off.
− −−
−
The code, F61 is displayed for three seconds, and then the current time appears.
− −−
−
To retrieve the code, turn on the power button so that the code F61 appears, however, is switched to time display after three
seconds, and the power is automatically turned off.
• ••
•
For F76 Display
− −−
−
The abnormalities is an output or the abnormalities in a power supply of POWER AMP IC.
14.2.3. Description of Error Code
14.2.3.1. F61
• ••
•
State, Condition
When the power is turned on, the unit is automatically turned off. The power does not turn on.
• ••
•
Cause, Troubleshooting
Power circuit system failure and/or direct current flown to speaker terminal
Identify the cause and replace with new parts.
14.3. Memorized Error Codes
14.3.1. Activating Self-Diagnosis Function and Displaying Method
1.Turn on the power.
2.Select DVD/CD function. With no DVD/CD inserted in the player, press and hold down the button for at least two seconds,
and press the “0” button on the remote control for at least two seconds in order to display “DVD_F---”.
3.Press the button. If a memorized error is detected, the result of self diagnosis is displayed. (Ex.: T H15)
18

If several errors are detected, press the button to display each.
14.3.2. Re-Display
• ••
•
Press the power button to turn off the power, and then turn on the power.
• ••
•
The details of self diagnosis are stored in the unit memory.
To retrieve them, follow the procedure described the above, “Activating Self-Diagnosis Function and Displaying Method”.
14.4. Service Mode Table 1
Following modes are available with combinations of the pressed buttons on the player and on the remote controller unit.
Player Remote Controller Unit Usage
button 0Error code display (Refer to the Item 14.5. DVD/CD Self-Diagnosis Error Code Description)
5Tilt adjustment (Jitter)
6Region number and broadcasting system check
8Bulit-in program version check (Micro-P)
DISPLAY DVD laser drive current check
3CD laser drive current check
PAUSE Writing of laser drive current value after replacement of optical pickup
(Do use this function only when optical pickup is replaced.)
Initialization of the player (factory setting is restored.)
Used after replacement of micro-computer and its peripherals and printed circuit board.
14.5. DVD/CD Self-Diagnosis Error Code Description
Error Code State, Conditon Cause, Troubleshooting
H15 The disc tray cannot be opened: it closes spontaneously. Disc tray open/close detection switch (S1001) failure.
(Check and replace)
H16 The disc tray cannot be closed: it opens spontaneously.
Error Code Meaning Details
U. H. Error
U11 Focus servo failure
H01 Tray loading failure
H02 Spindle servo failure (Spindle servo, DSC, SP motor, CLV servo failure)
H03 Traverse motor failure
H04 Tracking servo error
H05 Seek timeout failure
DSC system
F500 DSC failure DSC stops due to servo failure.
(Startup, focus failure, etc.)
F501 DSC not Ready failure Communication failure between DSC and system computer
(No communication because DSC does not move)
F502 DSC Time out failure See F500.
F503 DSC communication failure Communication failure (Result failure occurs after communication
command is transmitted.)
F505 DSC Attention Error See F500.
F506 Invalid media Disc is placed upside down; TOC is unreadable or invalid disc is
inserted.
Disc Code
F103 Ilegal highlight position Disc standard is possibly illegal when highlight is displayed.
IIC Error
F4FF Forced initialization failure (Time out)
F880 Unsuitable task number When a message arrives from not existing task
F890 A message is sent during AV task transmission During transmission of a message to AV task
F891 Unable to transmit a message to AV task When transmission of a message to AV task starts
F893 DVD Module problem Check for firmware version
F894 EEPROM failure
F895 Firmware compatibility problem Check for firm version for Main & DVD Module P.C.B.
F897 Initialization is not done properly Follow proper steps for initialization & reset
F8A0 Unsuitable message command When transmission of a message to AV task starts
14.6. Mode Table 2
Following modes are available with combinations of the pressed buttons on the player and on the remote controller unit.
19

Item Operational Condition
and Key Function Details Display TO Exit Mode
Jitter display While the player is
stopped and no disc is
inserted, press and hold
down the button
on the player and the
number button, “5” on
the remote controller
unit.
Press “Dimmer/FL
Display” button for next
page
Jitter display
Measures and displays jitter.
Measurement is repeated every
second. Read error counter starts at 0
at the mode setting, and increased by
one as data read fails at target block. A
small defect is allowed to correct by
retry. Any possibility is counted as one
increment. Repetitive errors after retry
increase by two levels or more.
J*1 xx*2 yyy*3 zz*4
*1 : Jitter display mode
*2 : Jitter measurement value
*3 : Read error counter
*4 : Focus driving value
Values are shown to one decimal
place in the decimal digit. Focus
driving value is displayed in the
hexadecimal digit.
Press the STOP or
OPEN button on
the player.
Error code display While the player is
stopped and no disc is
inserted, press and hold
down the button
on the player and the
number button, “0” on
the remote controller
unit.
Error code display
Displays the latest error code stored in
EEPROM.
DVD_F---
*nn: Error history
*--: Error number
Press the OPEN
button.
Measurement of laser
current electricity
initialization value
While the player is
stopped and no disc is
inserted, press and hold
down the button
on the player and the
button on the
remote controller unit.
Press “Dimmer/FL
Display” button for next
page
Measurement of laser current
electricity initialization value
Memorizes each initialization value of
DVD and CD in EEPROM.
LDO*1 xxx*2 yyyy*3
*1 : Laser current electricity
measurement mode
*2 : DVD current electricity value
*3 : CD current electricity value
Values are shown in the decimal
digit. The above example indicates
that the current electricity
initialization value is 13mA at DVD
laser and 32mA at CD laser when
laser is turned on.
Automatically exits
the mode after five
seconds.
Measurement of DVD
laser current electricity While the player is stopped and no disc is
inserted, press and hold
down the button
on the player and the
FUNCTION button on
the remote controller
unit.
Press “Dimmer/FL
Display” button for next
page
Measurement of DVD laser current
electricity
Measures DVD laser current electricity
and displays the result together with
the initialization value stored in
EEPROM. After measurement, DVD
laser is lit till the power is turned off (or
goes off when the primary power is
turned off).
LDD*1 xxx*2 yyyy*3
*1 : DVD laser current electricity
measurement mode
*2 : Current electricity initialization
value stored in EEPROM
*3 : Present value of current
electricity
Values are shown in the decimal
digit. The above example indicates
that the current electricity
initialization value is 12mA and its
present value is 14mA.
Automatically exits
the mode after five
seconds.
ADSC internal RAM
display While the player is stopped and no disc is
inserted, press and hold
down the button
on the player and the
number button “1” or “2”
on the remote controller
unit.
ADSC internal RAM display
Reads and displays the RAM value
inside ADSC. The address is renewed
when the CLEAR key is pressed so
that the values at eleven points appear.
FB0_0000
Values are shown in the
hexadecimal digit. The above
example indicates that ADSC
value at the address, FB0h is
0000h.
Press the STOP or
OPEN button on
the player.
20