Panasonic DMR-EZ49VEG User manual

© Panasonic Corporation 2010.
Unauthorized copying and distribution is a violation
of law.
ORDER NO.DSD1002003CE
DVD Recorder
Model No. DMR-EZ49VEG
DMR-EZ49VEC
DMR-EZ49VEB
Vol. 1
Colour
(K).......................Black Type
(S).......................Silver Type (Only EZ49VEG)

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TABLE OF CONTENTS PAGE PAGE
1 Safety Precaution-------------------------------------------------3
1.1. General guidelines-----------------------------------------3
2Warning--------------------------------------------------------------4
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatic Sensitive (ES) Devices---------------4
2.2. Precaution of Laser Diode -------------------------------5
2.3. Service caution based on legal restrictions----------6
3 Service Navigation------------------------------------------------7
3.1. Service Information----------------------------------------7
3.2. Caution for DivX (except DMR-EZ49VEB) ----------7
3.3. Micro Fuse conducting check---------------------------8
3.4. Operation check when a USB device is
connected----------------------------------------------------9
4 Specifications----------------------------------------------------10
5 Location of Controls and Components------------------12
5.1. Each Buttons----------------------------------------------12
6 Operation Instructions ----------------------------------------14
6.1. (DVD) Taking out the Disc from DVD-Drive
Unit when the Disc cannot be ejected by
OPEN/CLOSE button -----------------------------------14
6.2. (VHS) Removing Cassette Tape manually --------16
7 Service Mode-----------------------------------------------------18
7.1. (DVD) Self-Diagnosis and Special Mode
Setting-------------------------------------------------------18
7.2. (VHS) Self-Diagnosis and Special Mode
Setting-------------------------------------------------------29
8 Service Fixture & Tools ---------------------------------------33
9 Assembling and Disassembling Instructions ---------34
9.1. Disassembly Flow Chart--------------------------------34
9.2. P.C.B. Positions-------------------------------------------35
9.3. Caution with inserting cassette tape when
disassembling the unit ----------------------------------36
9.4. Top Case ---------------------------------------------------37
9.5. Front Panel ------------------------------------------------37
9.6. Front Jack P.C.B., FL Drive P.C.B.-------------------38
9.7. VHS Mechanism Unit -----------------------------------40
9.8. RAM/Digital P.C.B. Module ----------------------------41
9.9. SD/ USB P.C.B.-------------------------------------------42
9.10. Rear Panel, Fan Motor ---------------------------------42
9.11. HDMI P.C.B.-----------------------------------------------43
9.12. Digital IF P.C.B.-------------------------------------------43
9.13. Backend P.C.B.-------------------------------------------44
9.14. Main P.C.B. ------------------------------------------------44
10 Measurements and Adjustments --------------------------45
10.1. Service Positions-----------------------------------------45
10.2. Caution for Replacing Parts ---------------------------48
10.3. (DVD) Standard Inspection Specifications
after Making Repairs ------------------------------------51

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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, 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.
1.1.1. 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 metal-
lic cabinet part on the equipment such as screwheads,
connectors, control shafts, etc. When the exposed metal-
lic 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 .
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 capacitors, 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 sensi-
tivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the volt-
age 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 milliampere. In case a mea-
surement is outside of the limits specified, there is a pos-
sibility of a shock hazard, and the equipment should be
repaired and rechecked before it is returned to the cus-
tomer.
Figure 1

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2Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive
(ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-
trostatic Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistor-sand semi-
conductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electrostatic 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 alumi-
num foil, to prevent electrostatic charge buildup 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 removal device. Some solder removal devices not classified as "anti-static (ESD protected)" can
generate electrical charge sufficient 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, aluminum foil or compara-
ble 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 bodily 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 sufficient
to damage an ES device).

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2.2. Precaution of Laser Diode

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2.3. Service caution based on legal restrictions
2.3.1. 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
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.
RFKZ03D01KS-----------(0.3mm 100g Reel)
RFKZ06D01KS-----------(0.6mm 100g Reel)
RFKZ10D01KS-----------(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%
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)

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3 Service Navigation
3.1. Service Information
3.2. Caution for DivX (except DMR-EZ49VEB)

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3.3. Micro Fuse conducting check
This unit uses the Micro Fuse.
Check the Micro Fuse conducting using the Tester at the check points below.

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3.4. Operation check when a USB device is connected
You can check the operation status (normal or abnormal) of the USB connection part of this unit easily as shown below.
Connect each device to the USB terminal on the front panel and check the operation status on the TV monitor.
Normal operation:
Automatically displayed when the USB connection is made to a digital camera, etc.
(Example below: When JPEG materials have been recorded)
(*Displayed items differ depending on the recorded contents.)
Abnormal operation (Example 1):
Warning is displayed automatically if overcurrent is detected when a USB device is connected.
(*When a USB device or this unit’s USB terminal shorts out or the power supply type of USB device is connected)
Abnormal operation (Example 2):
When the terminal of USB device is damaged or open, there is no display on the TV monitor.

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4 Specifications

11

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5 Location of Controls and Components
5.1. Each Buttons
Followings are the Location of Controls and Components for DMR-EZ49VEB as a sample.
For other models, refer to each Operating Instructions.

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6 Operating Instructions
6.1. (DVD) Taking out the Disc from DVD-Drive Unit when the Disc cannot be
ejected by OPEN/CLOSE button
6.1.1. (DVD) Forcible Disc Eject
6.1.1.1. (DVD) When the power can be turned off.
1. Turn off the power and press [STOP], [CH UP] keys on the front panel simultaneously for 15 seconds.
6.1.1.2. (DVD) When the power can not be turned off.
1. Press [POWER] key on the front panel for over 4 seconds to turn off the power forcibly, and press [STOP] [CH UP] keys on
the front panel simultaneously for 15 seconds.
6.1.2. (DVD) When the Forcible Disc Eject can not be done.

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1. Turn off the power and pull out AC cord.
2. Remove the Top Case.
3. Push in SLIDE CAM by Paper Clip or minus screw driver (small) to eject tray slightly.
4. Push out Tray by Paper Clip or minus screw driver (small).

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6.2. (VHS) Removing Cassette Tape
manually
When the cassette tape could not be uninstalled from an elec-
trical malfunction, there are 2 ways to remove a cassette tape.
6.2.1. (VHS) Removal by compulsory
unloading.
If Service Mode can be activated when the power can not be
turned on, this operation is able.
1. Press [STOP] and [EJECT] button simultaneously for
more than 3 seconds to turn the unit in VHS service
mode.
2. Press [STOP] and [EJECT] button simultaneously 7 times
to turn the unit in VHS Service Mode “7”.
3. Press [STOP] button in order to unload the mechanism.
(Pay attention to tape slack)
Service Mode Display:
7 ** ** (STOP) →7 0L ** (EJECT)
6.2.2. (VHS) Removal by manual opera-
tion by rotating the Loading Motor
with the batteries.
1. Disconnect the AC plug, and remove the Top Panel and
the Front Panel by referring to the Disassembly Proce-
dures.
2. Connect three batteries (1.5V spec.) to the Loading Motor
in series for supplying 4.5V to rotate the Loading Motor as
shown below.
3. Stop unloading just before unloading will be completed as
shown below, and then the tape becomes slack as shown
below.
4. Rotate the S-Reel by a small minus screwdriver to
remove the slack tape as shown below.
5. Then unload again to remove the cassette tape as shown
below.

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6.2.3. (VHS) Take out Cassette Tape man-
ually after removing the mecha-
nism
1. Disconnect the AC plug, and remove the Top Panel, Front
Panel and the Mechanism by referring to "9 Assembling
and Disassembling"
2. Remove the Screw and remove the Loading Motor as
shown below.
3. Rotate the Main Cam Gear counter-clockwise until just
before the unloading will be completed as shown below.
4. Rotate the Capstan Motor clockwise to remove the slack
tape as shown below.
5. Rotate the Main Cam Gear counter-clockwise again to
remove the cassette-tape as shown below.
6. Attach Loading Motor and tighten the screw.
7. Set the Position Switch to EJECT POSITION certainly
and attach the mechanism to chassis as shown below.

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7 Service Mode
7.1. (DVD) Self-Diagnosis and Special Mode Setting
7.1.1. (DVD) Self-Diagnosis Functions
Self-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display” when any error has
occurred.
U**, H** and F** are stored in memory and held.
You can check latest error code by transmitting [0] [1] of Remote Controller in Service Mode.
Automatic Display on FL will be cancelled when the power is turned off or AC input is turned off during self-diagnosis display is ON.
Error Code Diagnosis contents Description Monitor Display Automatic FL display
U30 Remote control code error Display appears when main unit and
remote controller codes are not matched. No display
“*” is remote controller code of the
main unit.
Display for 5 seconds.
U50
(For EG
only)
Antenna Short U50 is displayed when a short circuit was
detected at Antenna Input while "Active
Antenna" of "Connection" of "FUNCTION
MENU" is ON, And then "Active Antenna"
is compulsorily switched to "Off".
"A short circuit was
detected at the
antenna input.
Please check your
antenna."
U59 Abnormal inner temperature
detected Display appears when internal temperature of deck reaches limit temperature.
The power is turned off forcibly.
For 30 minutes after this, all key entries are
disabled. (Fan motor operates at the high-
est speed for the first 5 minutes. For the
remaining 25 minutes, fan motor is also
stopped.) The event is saved in memory as
well.
No display
U59 is displayed for 30 minutes.
U61 The unit is carrying out its
recovery process. No display
U71 HDMI incompatible error
(HDCP incompatible) Display this error when the equipment (compatible with DVI such as TV, amplifier
etc.) connected to the unit by HDMI is
incompatible with HDCP.
*HDCP=High-bandwidth Digital Content
Protection
No display
U72 HDMI connection error
(communication error) This error is displayed when there are any communication problems with the unit and
the equipments (TV, amplifier etc.) con-
nected to the unit by HDMI. (or when there
is a problem with the HDMI cable)
No display
U72 display disappears when error
has been solved by Power OFF/ON
of connecting equipment or by
inserting/removing of HDMI cable.
U73 HDMI connection error
(authentication error) When authentication error occurs while the equipments (TV, amplifier etc.) are con-
nected by HDMI. (or when there is a prob-
lem with the HDMI cable)
No display
U73 display disappears when error
has been solved by Power OFF/ON
of connecting equipment or by
inserting/removing of HDMI cable.
U76 HDMI connection error HDMI cannot be output because you are
connected to a model that does not support
copyright protection.
No display

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U80 ST Microprocessor
Communication Error on
Timer Bus
Display appears when ST Microprocessor
Communication Error on Timer Bus occurs. No display
U80 is displayed till [POWER] key is
pressed.
U81 ST Microprocessor
Communication Error on
UART
Display appears when ST Microprocessor
Communication Error on DART occurs. No display
U81 is displayed till [POWER] key is
pressed.
U88 The unit is carrying out its
recovery process. No display
U99 Hang-up Displayed when communication error has
occurred between Main microprocessor
and Timer microprocessor.
No display
Displayed is left until the [POWER]
key is pressed.
H19 02 Inoperative fan motor When inoperative fan motor is detected
after powered on, the power is turned off
automatically.
The event is saved in memory.
No display No display
F00 No error information Initial setting for error code in memory
(Error code Initialization is possible with
error code initialization and main unit initial-
ization.)
No display No display
F34 Initialization error when main
microprocessor is started up
for program recording
When initialization error is detected after
starting up main microprocessor for pro-
gram recording, the power is turned off
automatically.
The event is saved in memory.
No display No display
F58 Drive hardware error When drive unit error is detected, the event
is saved in memory. No display No display
F60 DVD module has not been
started. Defect of Digital P.C.B., defect of regulator circuit for Digital P.C.B. and so on.
Mode: No change
No display
F74 HDMI Device Key Communi-
cation error HDMI connection could not be authenti- cated due to a transfer malfunction.
Factor of HDMI Device key-road failure
• When HDMI LSI is damaged.
• When the bus line of I2C doesn't oper-
ate normally.
• When device key information recorded
is damaged.
No display
F75 HDMI Device Key Information
error HDMI connection could not be authenti- cated due to an internal data malfunction.
Factor of HDMI Device key-road failure
• When HDMI LSI is damaged.
• When the bus line of I2C doesn't oper-
ate normally.
• When device key information recorded
is damaged.
No display
UNSUP-
PORT Unsupported disc error *An unsupported format disc was played, although the drive starts normally.
*The data format is not supported, although
the media type is supported.
*Exceptionally in case of the disc is dirty.
“This disc is
incompatible.” Display for 5 seconds.
The character indication flows side-
ways.
Error Code Diagnosis contents Description Monitor Display Automatic FL display

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NO READ Disc read error *A disc is flawed or dirty.
*A poor quality failed to start.
*The track information could not be read.
“Cannot read.
Please check the
disc.”
HARD
ERR Drive error The drive detected a hard error. “DVD drive error.” Display for 5 seconds.
The character indication flows side-
ways.
SELF
CHECK Restoration operation Since the power cord fell out during a power failure or operation, it is under resto-
ration operation.
*It will OK, if a display disappears automati-
cally. If a display does not disappear, there
is the possibility that defective Digital P.C.B.
/ DVD drive.
No display
The character indication flows side-
ways.
PLEASE
WAIT Unit is in termination process Unit is in termination process now. “BYE” is displayed and power will be turned
off.
In case “Quick Start” of setup menu is ON,
it is displayed in restoration operation for
AC off.
No display
The character indication flows side-
ways.
UNFOR-
MAT Unformatted disc error You have inserted an unformatted DVD- RAM or DVD-RW that is unformatted or
recorded on other equipment.
The character indication flows side-
ways.
IR ERR IR communication error [IR ERR] is displayed when communication
between Timer microprocessor and IR
microprocessor fails.
No display
No REC Recording is impossible [No REC] is displayed when recording is
impossible due to the defect, dirt or wound
of media.
No display
Error Code Diagnosis contents Description Monitor Display Automatic FL display