Panasonic DMR-EZ47VP User manual

©2007 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
Model No.DMR-EZ47VP
DMR-EZ475VP
Vol. 1
Colour
(K).......................Black Type
DVD Recorder
ORDER NO.CHM0704017CE
B24

1 Safety Precaution 4
1.1. General guidelines 4
1.2. Caution for fuse replacement 4
2 Warning 5
2.1. Prevention of Electrostatic Discharge (ESD) to
Electrostatic Sensitive (ES) Devices 5
2.2. Precaution of Laser Diode 6
2.3. Service caution based on legal restrictions 7
3 Service Navigation 8
3.1. Service Information 8
3.2. Caution for DivX 8
4 Specifications 9
5 Location of Controls and Components 10
5.1. Each Buttons 10
6 Operation Instructions 12
6.1. (DVD) Taking out the Disc from RAM-Drive Unit when the
Disc cannot be ejected by OPEN/CLOSE button 12
6.2. (VHS) Removing Cassette Tape manually 14
7 Service Mode 16
7.1. (DVD) Self-Diagnosis and Special Mode Setting 16
7.2. (VHS) Self-Diagnosis and Special Mode Setting 26
8 Service Fixture & Tools 32
9 Assembling and Disassembling Instructions 33
9.1. Disassembly Flow Chart 33
9.2. P.C.B. Positions 34
9.3. Caution with inserting cassette tape when disassembling
the unit 35
9.4. Top cover 36
9.5. Front Panel 36
9.6. Front (L) P.C.B. & Front (R) P.C.B. 37
9.7. DVD drive 39
9.8. SD/DV Jack P.C.B. 39
9.9. Rear Panel, Fan Motor 40
9.10. Digital P.C.B. 40
9.11. VHS Mechanism Unit 41
9.12. Main P.C.B. 42
9.13. Digital I/F P.C.B. 42
10 Measurements and Adjustments 43
10.1. Service Positions 43
10.2. Caution for Replacing Parts 47
10.3. Standard Inspection Specifications after Making Repairs
50
11 Block Diagram 53
11.1. Power Supply Block Diagram 53
11.2. Main P.C.B. Regulator Block Diagram 54
11.3. Analog Video Block Diagram 55
11.4. Analog Audio Block Diagram 57
11.5. Analog Timer Block Diagram 58
11.6. System Control & Servo Block Diagram 59
12 Schematic Diagram 61
12.1. Interconnection Schematic Diagram 61
12.2. Power Supply Section (Power & Digital I/F P.C.B.(1/3))
Schematic Diagram (P) 63
12.3. Digital I/F (1/4) Section (Power & Digital I/F P.C.B.(2/3))
Schematic Diagram (IF) 65
12.4. Digital I/F (2/4) Section (Power & Digital I/F P.C.B.(2/3))
Schematic Diagram (IF) 66
12.5. Digital I/F (3/4) Section (Power & Digital I/F P.C.B.(2/3))
Schematic Diagram (IF) 67
12.6. Digital I/F (4/4) Section (Power & Digital I/F P.C.B.(2/3))
Schematic Diagram (IF) 68
12.7. Tuner Section (Power & Digital I/F P.C.B.(3/3)) Schematic
Diagram (IF) 69
12.8. Video Section (Main P.C.B.(1/4)) Schematic Diagram (V)
70
12.9. VHS Audio Section (Main P.C.B.(2/4)) Schematic Diagram
(A) 71
12.10. Syscon/Servo/Timer (1/4) Section (Main P.C.B.(3/4))
Schematic Diagram (S) 72
12.11. Syscon/Servo/Timer (2/4) Section (Main P.C.B.(3/4))
Schematic Diagram (S) 73
12.12. Syscon/Servo/Timer (3/4) Section (Main P.C.B.(3/4))
Schematic Diagram (S) 74
12.13. Syscon/Servo/Timer (4/4) Section (Main P.C.B.(3/4))
Schematic Diagram (S) 75
12.14. I/O Section (1/4) (Main P.C.B.(4/4)) Schematic Diagram (I)
77
12.15. I/O Section (2/4) (Main P.C.B.(4/4)) Schematic Diagram (I)
78
12.16. I/O Section (3/4) (Main P.C.B.(4/4)) Schematic Diagram (I)
79
12.17. I/O Section (4/4) (Main P.C.B.(4/4)) Schematic Diagram (I)
80
12.18. DV Jack/SD Card Schematic Diagram 82
12.19. Front (L) Schematic Diagram 83
12.20. Front (R) Schematic Diagram 83
13 Printed Circuit Board 85
13.1. Power & Digital I/F P.C.B. 85
13.2. Main P.C.B. 90
13.3. DV Jack/SD Card P.C.B. 95
13.4. Front (L) P.C.B., Front (R) P.C.B. 96
14 Appendix for Schematic Diagram 97
14.1. Voltage and Waveform Chart 97
CONTENTS
Page Page
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14.2. Abbreviations 104
15 Parts and Exploded Views 110
15.1. Exploded Views 110
15.2. Replacement Parts List 114
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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 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 .
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
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 milliampere. In case a
measurement is outside 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.
Figure 1
1 Safety Precaution
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.
1.2. Caution for fuse replacement
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2 Warning
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
Electrostatic Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistor-sand
semiconductor "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
aluminum 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 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 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
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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3 Service Navigation
3.1. Service Information
3.2. Caution for DivX
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4 Specifications
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5 Location of Controls and Components
5.1. Each Buttons
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6 Operation Instructions
6.1. (DVD) Taking out the Disc from RAM-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 5 seconds.
6.1.1.2. (DVD) When the power can not be turned off.
1. Press [POWER] key on the front panel for over 10 seconds to turn off the power forcibly, and press [STOP] [CH UP] keys on
the front panel simultaneously for 5 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 Eject Pin(JSJ0484) or minus screw driver (small) to eject tray slightly.
4. Push out Tray by Eject Pin (JZS0484) 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
electrical 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 [CH UP] button simultaneously for more
than 5 seconds.
6.2.2. (VHS) Removal by manual
operation 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 Procedures.
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.
6.2.3. (VHS) Take out Cassette
Tapemanually after removing the
mechanism
1. Disconnect the AC plug, and remove the Top Case, Front
Panel and the Mechanism by referring to "9 Assembling
and Disassembling Instructions"
2. Remove the Screw and remove the Loading Motor as
shown below.
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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.
U59 Abnormal inner temperature
detected
Display appears when the drive has abnormal
temperature.
The power is turned off forcibly.
For 30 minutes after this, all key entries are
disabled. (Fan motor operates at the highest
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
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.) connected to
the unit by HDMI. (or when there is a problem
with the HDMI cable) 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 connected
by HDMI. (or when there is a problem 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 Injustice disc error HDMI cannot output because you are
connected to a model that does not support
copyright protection.
No display
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.
F00 No error information Initial setting for error code in memory
(Error code Initialization is possible with error
code initialization and main unit initialization.)
No display No display
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Error Code Diagnosis contents Description Monitor Display Automatic FL display
F09 Serial Communication Error
between VHS Microprocessor
and Timer Microprocessor.
Please confirm Serial Communication
terminal of Microprocessor.
NOTE:
If F09 appears just after updating Firmware,
pull off and insert AC plug, then it will
disappear.
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 program
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.
Mode: No change
No display
HDMI HDMI connection check This unit is confirming that ut is connected
with equipment compatible with HDAVI
control.
No display
F74 HDIM Device Key
Communication error.
HDMI connection could not be authenticated
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 operate
normally.
·When device key information recorded is
damaged.
No display
F75 HDIM Device Key Information
error
HDMI connection could not be authenticated
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 operate
normally.
·When device key information recorded is
damaged.
No display
UNSUPPO
RT
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.
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.
No REC Recording is impossible [No REC] is displayed when recording is
impossible due to the defect, dirt or wound of
media.
No display
SELF
CHECK
Restoration operation Since the power cord fell out during a power
failure or operation, it is under restoration
operation.
*It will OK, if a display disappears
automatically. If a display does not disappear,
there is the possibility that defective Digital
P.C.B.
No display
“0” is displayed one by one.
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Error Code Diagnosis contents Description Monitor Display Automatic FL display
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
“0” is displayed one by one.
UNFORM
AT
Unformatted disc error You have inserted an unformatted DVD-RAM
or DVD-RW that is unformatted or recorded
on other equipment.
7.1.2. (DVD) Special Modes Setting
Item FL display Key operation
Mode name Description Front Key
TEST Mode *All the main unit´s parameters are initialized. Press [VHS to DVD COPYING],
[REC] and [OPEN/CLOSE] keys
simultaneously for five seconds
when power is off.
Rating password The audiovisual level setting password is
initialized to “Level 8”.
No display When the power is on (E-E mode).
While the tray is open, press [REC]
and [PLAY] simultaneously for 5
seconds.
Service Mode Setting every kind of modes for servicing.
*Details are described in “7.1.3. (DVD)
Service Modes at a glance”.
When the power is off, press [VHS
to DVD COPYING], [OPEN/CLOSE]
and [STOP] keys simultaneously for
5 seconds.
Forced disc eject Removing a disc that cannot be ejected.
The tray will open and unit will shift to P-off
mode.
*During Schedule Recording, Forced disc
eject is invalid.
While Demonstration Lock is being set, this
Forced disc eject function is not accepted.
The display before execution
leaves.
When the power is off, press
[STOP] and [CH UP] keys
simultaneously for 5 seconds.
Forced power-off When the power button is not effective while
power is ON, turn off the power forcibly.
*When Schedule Recording is ON, execute
“Forced Power-off” after releasing Schedule
Recording.
Display in P-off mode. Press [POWER] key over than 10
seconds.
Aging Perform sequence of modes as * Aging
Description shown below continually.
Display following the then mode. Set DRIVE SELECT to DVD.
When the power is ON, press [CH
DOWN], [VHS to DVD COPYING]
and [OPEN/CLOSE]
simultaneously for over 5 seconds
and less than 10 seconds.
NOTE1:
If Unit has not turned into Aging
mode by operations shown above,
execute TEST MODE once and re-
execute operation shown above.
(*All the main unit’s parameters are
initialized by TEST mode.)
NOTE2:
If the unit has hung-up because of
pressing keys for over 10 seconds,
once turn off the power, and re-
execute this command.
*When releasing Aging mode,
press [POWER] key, AC-OFF.
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Item FL display Key operation
Mode name Description Front Key
Aging Contents (Example):
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Item FL display Key operation
Mode name Description Front Key
Demonstration
lock/unlock
Ejection of the disc is prohibited.
The lock setting is effective until unlocking the
tray and not released by “Main unit
initialization” of service mode.
*When lock the tray.
“LOCK” is displayed for 3 seconds.
When the power is on, press
[STOP] and [POWER] keys
simultaneously for 5 seconds.
*The time difference of
simultaneous key pressings should
be within 0.5 sec.
Note1:
When a disc in not in tray, this
setting is not effective.
Note2:
Time difference between
pressing of [STOP] and
[POWER] should be within 0.5
seconds.
*When unlock the tray.
“UNLOCK” is displayed for 3
seconds.
When the power is on and tray
being locked, press [STOP] and
[POWER] keys simultaneously for 5
seconds.
*When press OPEN/CLOSE key
while the tray being locked.
Display “LOCK” for 3 seconds.
Press [OPEN/CLOSE] key while the
tray being locked.
Progressive initialization The progressive setting is initialized to
Interlace.
The display before execution
leaves.
When the power is on (E-E mode),
press [STOP] and [VHS to DVD
COPYING] simultaneously for 5
seconds.
ATP Initialization ATP setting and all parameters (including
clock) are intialized, and the unit turns off
automatically.
It is same with display in stop mode. When the power is on (E-E mode),
press [CH UP] and [CH DOWN]
simultaneously for 5 seconds.
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