Panasonic DMR-EZ17P User manual

© 2007 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
Vol. 1
Colour
(S).......................Silver Type
(K).......................Black Type
DVD Recorder
ORDER NO.CHM0702001CE
B24

1 Safety Precaution 3
1.1. General guidelines 3
1.2. Caution for fuse replacement 3
2 Warning 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
4 Specifications 8
5 Location of Controls and Components 9
6 Operation Instructions 11
6.1. Taking out the Disc from DVD-Drive Unit when the Disc
cannot be ejected by OPEN/CLOSE button 11
7 Service Mode 13
7.1. Self-Diagnosis and Special Mode Setting 13
8 Service Fixture & Tools 22
9 Assembling and Disassembling 23
9.1. Disassembly Flow Chart 23
9.2. P.C.B. Positions 23
9.3. Top cover 24
9.4. Front Panel 24
9.5. DV Jack P.C.B. 25
9.6. Rear Panel 25
9.7. Digital P.C.B. 26
9.8. DVD Drive 26
9.9. Main P.C.B., Front jack P.C.B. and Front (L) P.C.B. 27
10 Measurements and Adjustments 28
10.1. Service Positions 28
10.2. Notice after replacing Digital P.C.B. 30
10.3. When the unit does not operate normally after replacing
the Timer Microprocessor or Main P.C.B. 30
10.4. Standard Inspection Specifications after Making Repairs
30
11 Block Diagram 33
11.1. Power Supply Block Diagram 33
11.2. Digital P.C.B. Regulator Block Diagram 35
11.3. Analog Video Block Diagram 36
11.4. Analog Audio Block Diagram 37
11.5. Analog Timer Block Diagram 38
12 Schematic Diagram 39
12.1. Interconnection Schematic Diagram 39
12.2. Power Supply Section (Main P.C.B. (1/4)) Schematic
Diagram (A) 40
12.3. AV IO (1/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (A) 42
12.4. AV IO (2/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (A) 43
12.5. AV IO (3/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (A) 44
12.6. AV IO (4/4) Section (Main P.C.B. (2/4)) Schematic
Diagram (A) 45
12.7. Tuner Section (Main P.C.B. (3/4)) Schematic Diagram
(TU) 47
12.8. Timer Section (Main P.C.B. (4/4)) Schematic Diagram (T)
48
12.9. Front (L) Schematic Diagram 50
12.10. DV Jack Schematic Diagram 50
12.11. Front Jack Schematic Diagram 50
13 Printed Circuit Board 51
13.1. Main P.C.B. 51
13.2. Front (L) P.C.B. 56
13.3. DV Jack P.C.B. 56
13.4. Front Jack P.C.B. 57
14 Appendix for Schematic Diagram 59
14.1. Voltage and Waveform Chart 59
14.2. Waveform Chart 61
14.3. Abbreviations 62
15 Parts and Exploded Views 64
15.1. Exploded Views 64
15.2. Replacement Parts List 66
CONTENTS
Page Page
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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
1MWand 5.2MW.
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 1.5kW, 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 hamless 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
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4 Specifications
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5 Location of Controls and Components
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6 Operation Instructions
6.1. Taking out the Disc from DVD-Drive Unit when the Disc cannot be
ejected by OPEN/CLOSE button
6.1.1. Forcible Disc Eject
6.1.1.1. 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. 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. 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. Put deck so that bottom can be seen.
4. Slide SLIDE CAM by Eject Pin (JZJ0484) or minus screw driver (small) in the direction of arrow to eject tray slightly.
5. Put deck upward, and push out Tray by Eject Pin (JZS0484) or minus screw driver (small).
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DMR-EZ17P

7 Service Mode
7.1. Self-Diagnosis and Special Mode Setting
7.1.1. 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 temperature
exceeds 70°C.
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
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
F58 Drive hardware error When drive unit error is detected, the event is
saved in memory.
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 program
recording, the power is turned off
automatically.
The event is saved in memory.
No display 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.”
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Error Code Diagnosis contents Description Monitor Display Automatic FL display
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.
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
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. Special Modes Setting
Item FL display Key operation
Mode name Description Front Key
TEST Mode *All the main unit´s parameters are initialized. Press [STOP], [CH UP] 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).
Open the tray, and press [REC] and
[PLAY] simultaneously for 5
seconds.
Service Mode Setting every kind of modes for servicing.
*Details are described in “7.1.3. Service
Mode at a glance”.
When the power is off, press [CH
UP], [OPEN/CLOSE] and [REC]
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.
*This command is not effective during "Child
lock" is ON.
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.
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Item FL display Key operation
Mode name Description Front Key
Aging Perform sequence of modes as * Aging
Description shown below continually.
Display following the then mode. Insert DVD-RAM disc.
When the power is ON, press
[STOP], [POWER] 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.
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.
*When unlock the tray.
“UNLOCK” is displayed for 3
seconds.
When the power is on, 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.
ATP Initialization ATP setting and all parameters (including
clock) are initialized, 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.
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 [PLAY]
simultaneously for 5 seconds.
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7.1.3. Service Modes at a glance
Service mode setting: While the power is off, press REC, CH UP and OPEN / CLOSE simultaneously for five seconds.
Item FL display Key operation
Mode name Description (Remote controller key)
Release Items Item of Service Mode executing is cancelled. Press [0] [0] or [Return] in service
mode.
Error Code Display Last Error Code of U/H/F held by Timer is
displayed on FL.
*Details are described in “7.1.1. Self-
Diagnosis Functions”.
If any error history does not exist,
[F00] is displayed.
Press [0] [1] in service mode
ROM Version Display 1. Region code (displayed for 5 sec.)
2. Main firm version (displayed for 5 sec.)
3. Timer firm version (displayed for 5 sec.)
4. Drive firm version (displayed for 5 sec.)
5. ROM correction version (left displayed)
Press [0] [2] in service mode
White Picture Output White picture is output as component Output
from AV Decoder.
*White picture
(Saturation rate : 100%)
*It is enable to switch Interlace/Progressive by
“I/P switch: [1] [4]”
*Initial mode is “Interlace”. Press [1] [1] in service mode.
Switch Interlace/Progressive Press [1] [4] in White Picture Output
mode.
*I/P are switched alternately.
Magenta Picture Output Magenta picture is output with Component
Output from AV Decoder.
*Magenta picture
(Saturation rate: 100%)
*It is enable to switch Interlace/Progressive by
“I/P switch: [1] [4]”
*Initial mode is “Interlace”. Press [1] [2] in service mode.
Switch Interlace/Progressive Press [1] [4] in Magenta Picture
Output mode.
*I/P are switched alternately.
I/P Switch Switch Interlace and Progressive in EE mode.
*Initial setting is “Interlace”.
*This command is effective during executing
“White Picture Output”, “Magenta Picture
Output” mode.
Initial mode is Interlace
Switch Interlace/Progressive
Press [1] [4] in I/P Switch mode.
*I/P are switched alternately.
Audio Mute (XTMUTE) Check whether mute is applied normally by
the timer microprocessor.
Press [2] [1] in service mode.
Audio Mute (XDMUTE) Check whether mute is applied normally by
the Digital P.C.B..
Press [2] [2] in service mode.
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Item FL display Key operation
Mode name Description (Remote controller key)
Audio Pattern Output The audio pattern stored in the internal
memory is output
(Lch: 1kHz/-18dB)
(Rch: 400Hz/-18dB)
*Audio sound clock switching operation of
DAC can be confirmed by sub command [2]
[4].
Initial mode (Audio 48kHz) Press [2] [3] in service mode.
Audio 44.1kHz/48kHz switching Press [2] [4] in Audio Pattern Output
mode.
*48 kHz / 44.1 kHz are switched
alternately.
Laser Used Time
Indiction
Check laser used time (hours) of drive.
l(*****) is the used time display in
hour.
lLaser used time of DVD/ CD in
Playback/Recording mode is
counted.
Press [4] [1] in service mode.
Delete the Laser Used
Time
Laser used time stored in the memory of the
unit is deleted.
Press [9] [5] in service mode.
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Item FL display Key operation
Mode name Description (Remote controller key)
RAM Drive Last Error RAM Drive error code display.
*For details about the drive error code, refer
to the Service Manual for the specific RAM
Drive.
1. Error Number is displayed for 5
seconds.
2. Time when the error has
occurred (1/2) is displayed for 5
seconds.
YY: Year
MM: Month
DD: Day
3. Time when the error has
occurred (2/2) is displayed for 5
seconds.
hh: Hour
mm: Minute
ss: Second
4. Last Drive Error code No.1 is
displayed for 5 seconds.
5. Last Drive Error code No.2 (1/2)
is displayed for 5 seconds.
(This Error Code is unnecessory
for service.)
6. Last Drive Error code No.2 (2/2)
is displayed for 5 seconds.
(This Error Code is unnecessory
for service.)
7. Error occurring Disc type is
displayed for 5 seconds.
DISC 1: DVD
DISC 2: CD
DISC 3: DVD-RAM 2.6GB
DISC 4: DVD-RAM 4.7GB
DISC 5: DVD-R
DISC : Unknown Disc
8. Unused (No display)
9. Factor of Drive Error occurring is
left displayed
Press [4] [2] in service mode.
When “INFO******” is being
displayed, past 99 error histories
can be displayed by pressing [0] [1]
- [9] [9]
Delete the Last Drive
Error
Delete the Last Drive Error information stored
on the DVD RAM-Drive.
Press [9] [6] in service mode.
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Item FL display Key operation
Mode name Description (Remote controller key)
Laser power confirmation Drive state is judged based on difference
between laser power value at shipping and
present laser power value.
If DVD-RAM disc in not inserted,
[NO DISC] is displayed.
If power value study was failed,
[NG] is displayed.
1. into RAM
Drive in service mode. (Other
media are assumed to be non-
correspondence.)
2. Press [4] [4].
Turn on all FL/LEDs All segments of FL and all LEDs are turned
on.
All segments are turned on. Press [5] [1] in service mode.
S1 signal output Forcibly superimpose the S1 signal (approx.
4.5V DC) on the EE chroma signal, and check
the output on the S terminal.
Press [5] [2] in service mode.
S2 signal output Forcibly superimpose the S2 signal (approx.
2V DC) on the EE chroma signal, and check
the output on the S terminal.
Press [5] [3] in service mode.
Front connection
inspection
Press all front keys and check the connection
between Main P.C.B. and Front key Switches.
(1) Each time a key is pressed,
segment turned on increases one
by one.
(2) Total number of keys that have
been pressed.
Press [5] [4] in service mode.
*When finish this mode, Press
[Power] for 10 seconds.
Production Date Display Display the date when the unit was produced.
YY: Year
MM: Month
DD: Day
Press [6] [1] in service mode.
Display the accumlated
working time
Display the accumulated unit´s working time.
(Indicating unit: Second)
Press [6] [4] in service mode.
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