Panasonic DMR-E85HP User manual

© 2004 Matsushita Electric Industrial CO., Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
DMR-E85HP
DMR-E85HPC
Colour
(S).......................Silver Type
DVD Video Recorder
ORDER NO.DSD0403003C1
B24

1 Safety precautions 4
1.1. General guidelines 4
1.2. Caution for fuse replacement 4
2 Prevention of Electrostatic Discharge (ESD) to Electrostatic
Sensitive (ES) Devices 5
3 Precaution of Laser Diode 6
4 How to replace the Lithium Battery 7
5 Handling the Lead-free Solder 7
5.1. About lead free solder (PbF) 7
6 Each Buttons 8
7 New Features 9
7.1. Function of Power Circuit (IC1150) 9
8 Taking out the Disc from RAM-Drive Unit when the Disc
cannot be ejected by OPEN/CLOSE button 12
8.1. Forcible Disc Eject 12
8.2. When the Forcible Disc Eject can not be done. 12
9 Service Explorer 13
10 Self-Diagnosis and Special Mode Setting 16
CONTENTS Page Page
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DMR-E85HP / DMR-E85HPC

10.1. Self-Diagnosis Functions 16
10.2. Special Modes Setting 18
10.3. Service Modes 20
11 Assembling and Disassembling 25
11.1. Disassembly Flow Chart 25
11.2. P.C.B. Positions 25
11.3. Top Case 26
11.4. Digital P.C.B. 26
11.5. Front Panel 27
11.6. Front (R) P.C.B. 27
11.7. HDD 27
11.8. HDD Bracket 28
11.9. DVD-RAM Drive 28
11.10. Rear Panel 29
11.11. Main P.C.B. 29
11.12. Power P.C.B. 30
11.13. IR P.C.B. 30
12 Service Fixture and Tools 31
13 Service Positions 32
13.1. Checking and Repairing of Power P.C.B. 32
13.2. Checking and Repairing of Main P.C.B. 33
13.3. Checking and Repairing of Digital P.C.B. 34
13.4. Checking and Repairing of DVD-RAM Drive 35
13.5. Checking and Repairing of HDD 36
13.6. Checking of IR P.C.B. 37
14 Adjustment Procedures 38
14.1. After replacing the RAM Drive with new one 38
14.2. When the unit does not operate normally after replacing
the Timer Microprocessor with new one 38
15 Standard Inspection Specifications after Making Repairs 38
16 Voltage and Waveform Chart 39
16.1. Power P.C.B. 39
16.2. Main P.C.B. 39
16.3. IR P.C.B. 41
16.4. Front (R) P.C.B. 41
16.5. P9001 Connector 42
16.6. Waveform Chart 43
17 Abbreviations 44
18 Block Diagram 47
18.1. Power Supply Block Diagram 47
18.2. Analog Video Block Diagram 49
18.3. Analog Audio Block Diagram 50
18.4. Timer Block Diagram 51
18.5. Digital Block Diagram 52
18.6. Digital Block IC Pin Terminal Chart (TC1-22) 53
19 Schematic Diagram 55
19.1. Interconnection Schematic Diagram 55
19.2. Main Power Schematic Diagram 56
19.3. Sub Power Section (Main P.C.B. (1/5)) Schematic
Diagram (P) 57
19.4. Main Net Section (Main P.C.B. (2/5)) Schematic Diagram
(M) 58
19.5. Video I/O Section (Main P.C.B. (3/5)) Schematic Diagram
(V) 59
19.6. Audio Main Section (Main P.C.B. (4/5)) Schematic
Diagram (A) 61
19.7. Timer Section (Main P.C.B. (5/5)) Schematic Diagram (T)
62
19.8. Glue Net Section (Digital P.C.B. (1/5)) Schematic Diagram
(GN) 64
19.9. AV Encoder Section (Digital P.C.B. (2/5)) Schematic
Diagram (EN) 66
19.10. Real Time Stream Control (RTSC) Section (Digital P.C.B.
(3/5)) Schematic Diagram (TR) 69
19.11. AV Decoder/Main CPU Section (Digital P.C.B. (4/5))
Schematic Diagram (MC) 71
19.12. Audio I/O Section (Digital P.C.B. (5/5)) Schematic Diagram
(AI) 73
19.13. IR Schematic Diagram 74
19.14. Front (R) Schematic Diagram 75
20 Print Circuit Board 77
20.1. Power P.C.B. 77
20.2. Main P.C.B. 78
20.3. Digital P.C.B. 83
20.4. IR P.C.B. 86
20.5. Front (R) P.C.B. 87
21 Exploded Views 89
21.1. Casing Parts & Mechanism Section 1 89
21.2. Casing Parts & Mechanism Section 2 90
21.3. Packing & Accessories Section 91
22 Replacement Parts List 92
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DMR-E85HP / DMR-E85HPC

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
1M9and 5.2M9.
When the exposed metal does not have a return path to
the chassis, the reading must be .
Figure 1
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 1.5k9, 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.
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.
1.2. Caution for fuse replacement
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DMR-E85HP / DMR-E85HPC

2 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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DMR-E85HP / DMR-E85HPC

3 Precaution of Laser Diode
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DMR-E85HP / DMR-E85HPC

4 How to replace the Lithium Battery
REPLACEMENT PROCEDURE
1.Remove the Top case and DVD-RAM drive unit with Main P.C.B. by referring the Disassembling Procedure.
2.Unsolder the Lithium Batteries: B7501 and then replace it into new one.
( As shown in 20.2.1. The Main P.C.B. )
NOTE:
The lithium battery is a critical component. ( Type No.: CR2354-1GUF Manufactured by Panasonic. )
It must never be subjected to excessive heat or discharge.
It must therefore only be fitted in equipment designed specifically for its use.
Replacement batteries must be of the same type and manufacture.
They must be fitted in the same manner and location as the original battery, with the correct polarity contacts observed.
Do not attempt to re-charge the old battery or re-use it for any other purpose.
It should be disposed of in waste products destined for burial rather than incineration.
5 Handling the Lead-free Solder
5.1. 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 the 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.
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DMR-E85HP / DMR-E85HPC

6 Each Buttons
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DMR-E85HP / DMR-E85HPC

2. Equivalence Circuit to IC1150
3. Startup Circuit
When power is turned on, input voltage of the Switching
Transformer is supplied to IC1150 as the startup power.
After IC1150 has started, the startup current is cut off.
The current of Startup Circuit is supplied as constant
current source in IC1150 and as charge current for the
capacitor connected between Vcc terminal and GND out
side of IC1150 until Vcc reaches 14.4V.
When Vcc reaches 14.4V, the Startup Circuit is cut off, then
oscillation starts.
After then, power of IC1150 is supplied from control coil.
In case, the power failure or short out of the load, when Vcc
becomes 9.0V; the oscillation stops, furthermore Vcc
becomes 7.1V the Startup Circuit starts up and Vcc starts to
rise.
Pin No. Symbol Description
1Z/C Trigger input terminal.
Zero detection voltage: 0.25V
It becomes less than 3V, the mode turns to
standby.
2F/B Bias current feedback input terminal.
lSwitching ON time (min.) ~ (max.)
1.5V ~ 4.5V / 0µsec. ~ 25µsec.
lIn standby mode
Oscillation stops: less than 0.8V
Oscillation starts: over 1.8V
3 GND GND terminal
4Vcc Power terminal of IC.
Oscillation starting voltage: Vcc = and over 14.5V
Oscillation stop voltage: Vcc = and less than 9.6V
Over voltage latching voltage: Vcc = 20V
5Drain Drain terminal for Main switching material.
7 New Features
7.1. Function of Power Circuit (IC1150)
1. General
We adopted IC module as the Switching Power Circuit for lower power consumption.
IC1150 is constructed with Switching materials and Control IC, and is partial resonance module.
We realized Switching Power with high efficiency, low noise and low power consumption.
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DMR-E85HP / DMR-E85HPC

Startup Circuit Timing Chart
Function of Z/C Terminal
When voltage of Z/C reaches 0.25V, Gate signal is output and Drain current starts to flow.
Function of F/B terminal
F/B signal decides Switching ON width in low voltage controlling.
The Switching ON width responds to change of F/B Voltage.
Standby Function
When Z/C Voltage becomes less than 3V, the unit changes to Standby mode.
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DMR-E85HP / DMR-E85HPC

IC1150 Block Diagram
Signal name
Pin No. Name Symbol
1Zero Current Det. Z/C
2Feed back F/B
3 GND GND
4Vcc Vcc
5Drain Drain
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DMR-E85HP / DMR-E85HPC

8 Taking out the Disc from RAM-Drive Unit when the Disc
cannot be ejected by OPEN/CLOSE button
8.1. Forcible Disc Eject
8.1.1. 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.
8.1.2. 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.
8.2. When the Forcible Disc Eject can not be done.
1.Turn off the power and pull out AC cord.
2.Remove the Top Case.
3.Remove the Front Panel.
4.Remove 4 screws and Upper Base Unit from DVD-RAM Drive.
5.Take out the disc and put the Opener Roller on fully position for direction of Arrow.
6.Put the Upper Base Unit so that the Opener Roller is inserted into the groove.
7.Check center of Opener Roller is seen through the Opener position Checking Hole, and tighten 4 screws.
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DMR-E85HP / DMR-E85HPC

9 Service Explorer
Confirm “RAM-Drive Last Error” in Service Mode
Execute Service Mode
1.Press [STOP], [TIME SLIP] and [OPEN/CLOSE] simultaneously for 5 seconds when P-off.
FL Display:
*After finishing display “(7). Factor of Drive Error occurring”, press [0] [2] ~[9] [9] keys of the Remote Controller so that
99 memories can be displayed as maximum.
2.Press [4] [2] keys of remote controller.
Example of FL Display:
(1) Error Number is displayed for 5 seconds.
(2) Time when the error has occurred is displayed for 5 seconds.
(3) Last Drive Error (1/2) is displayed for 5 seconds.
(4) Last Drive Error (2/2) is displayed for 5 seconds.
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DMR-E85HP / DMR-E85HPC

(5) Error occurring Disc type is displayed for 5 seconds.
(6) Disc Maker´s ID is displayed for 5 seconds.
Example of Disc Maker´s ID:
DVD-R Disc
No. FL Display (Disc Maker´s ID) Disc Maker Country
1 MEI Panasonic Japan
2PVC Pioneer Japan
3MCC Mitsubishi Chemical Corporation Japan
4TDK TDK Japan
5MXL Maxell Japan
6MCI MITUI CHEMICALS Japan
7JVC Victor JVC Japan
8 TAIYOYUDEN Taiyo yuden Japan
TYG
9GSC Giga Storage Taiwan
10 PRODISC Prodisc Taiwan
11 PRINCO PRINCO Taiwan
12 RITEK RITEK Taiwan
13 OPTDISC OPTDISC Taiwan
14 LEAD DATA LEAD DATA Taiwan
15 CMC CMC Taiwan
16 AUVISTAR AUVISTAR Taiwan
17 ACER Acer Taiwan
18 VIVASTAR VIVASTAR Switzerland
19 LGE LG Electronics Korea
DVD-RAM Disc
No. FL Display (Disc Maker´s ID) Disc Maker Country
1 MEI Panasonic
2MATSUSHITA Panasonic Japan
3MXL Maxell Japan
4PRODISC Prodisc Taiwan
5OPTDISC OPTDISC Taiwan
6CMC CMC Taiwan
*Since an display is arbitrarily set up by the disk producer side, the above-mentioned display may be changed.
Please make it reference as an example of a display.
(7) Factor of Drive Error occurring is left displayed
Error Occurring Disc Type
FL Display Disc Type
00 DVD-ROM/Video
01 Audio-CD
02 2.6GB DVD-RAM
03 4.7GB DVD-RAM
04 DVD-R
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DMR-E85HP / DMR-E85HPC

Error Occurring Disc State
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DMR-E85HP / DMR-E85HPC

10 Self-Diagnosis and Special Mode Setting
10.1. Self-Diagnosis Functions
Self-Diagnosis Function provides information for errors to service personnel by “Self-Diagnosis Display” when any error has
occurred.
U14, H** and F** are stored in memory and held.
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 FL display
U12 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.
U14 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
“U14” is displayed for 30 minutes.
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.
H01 Inoperative fan motor Display appears when inoperative fan motor
is detected after powered on.
The power is turned off when detecting.
No display
Displayed is left.
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
Displayed is left.
F01 Drive hardware error Display appears when drive unit error is
detected. The event is saved in memory. No display
Displayed is left.
F12 Initialization error when main
microprocessor is started up
for program recording
Display appears when initialization error is
detected after starting up main
microprocessor for program recording. The
event is saved in memory.
The power is turned off when detecting.
No display
Displayed is left.
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.
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. / RAM drive.
No display
Full
Program 32 programs are already set. 32 programs are already set. No display
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DMR-E85HP / DMR-E85HPC

Error
Code Diagnosis contents Description Monitor Display FL display
HDD
SLEEP In order to extend HDD life, the HDD is in SLEEP (not
activated) mode.
If there is no disc in the unit, the HDD will go
into SLEEP mode after there has been no
operation for 30 minutes or longer.
*While in SLEEP mode play or recording may
not begin right away because the HDD takes
time to be re-activated.
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DMR-E85HP / DMR-E85HPC

10.2. Special Modes Setting
Item FL display Key operation
Mode name Description Front Key
TEST Mode *All the main unit´s parameters (include tuner)
are initialized. Press [SKIP (REV)], [TIME SLIP] and [OPEN/CLOSE] keys
simultaneously for five seconds
when power is off.
Service Mode Setting every kind of modes for servicing.
*Details are described in “10.3. Service
Mode”.
When the power is off, press
[STOP], [TIME SLIP] and
[OPEN/CLOSE] keys
simultaneously for 5 seconds.
Rating password The audiovisual level setting password is
initialized to “Level 8”. Open the tray, and press [SKIP (REV)] and [SKIP (FWD)]
simultaneously for five seconds.
Forced disc eject Removing a disc that cannot be ejected.
The tray will open and unit will shift to P-off
mode.
*When Timer REC is ON or EXT-LINK is ON,
execute " Forced disc eject " after releasing
Timer REC or EXT-LINK.
*This command is not effective during "Child
lock" is ON.
The display before execution
leaves. When the power is off, press [STOP] and [CH UP] keys
simultaneously for five seconds.
Forced power-off When the power button is not effective while
power is ON, turn off the power
forcibly.*When Timer REC is ON or EXT-
LINK is ON, execute “Forced Power-off” after
releasing Timer REC or EXT-LINK.
Action:
The tray will open, and the power will turn off.
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. When the power is ON, press [CH DOWN], TIME SLIP] and [OPEN /
CLOSE] simultaneously for over five
seconds and less than 10 seconds.
*The [REC MODE] should be set to
EP or LP.
*When 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.
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 five seconds.
*When unlock the tray.
“UNLOCK” is displayed for 3
seconds.
When the power is on, press
[STOP] and [POWER] keys
simultaneously for five 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 is 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 five 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 [TIME SLIP]
simultaneously for five seconds.
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DMR-E85HP / DMR-E85HPC

Aging Contents (Example):
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DMR-E85HP / DMR-E85HPC

10.3. Service Modes
Service mode setting: While the power is off, press TIME SLIP, STOP 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 U14/H/F held by Timer is
displayed on FL.
*Details are described in “10.1. Self-
Diagnosis Functions”.
Press [0] [1] in service mode
ROM Version Display Region code, MAIN firm version, TIMER firm
version and DRIVE firmware versions are
displayed on FL for five seconds per each
version in order, but ROM version will be left
displayed.
‘’–’’ are version displays.
Press [0] [2] in service mode
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DMR-E85HP / DMR-E85HPC