Panasonic DMR-ES10P, DMR-ES10PC Service Manual

DVD Video Recorder

DMR-ES10P DMR-ES10PC

Vol. 1

Colour

(K).......................Black Type

(S).......................Silver Type

ORDER NO.DSD0502037C1

B24

DMR-ES10P / DMR-ES10PC

CONTENTS

Page Page

1 Safety precautions 4

1.1. General guidelines

1.2. Caution for fuse replacement

2 Prevention of Electrostatic Discharge (ESD) to Electrostatic

Sensitive (ES) Devices

3 Precaution of Laser Diode

4 Handling the Lead-free Solder

4.1. About lead free solder (PbF)

5 Each Button

6 New Feature

6.1. Quick start function(REC)

7 Taking out the Disc from RAM-Drive Unit when the Disc

cannot be ejected by OPEN/CLOSE button

7.1. Forcible Disc Eject

7.2. When the Forcible Disc Eject can not be done.

8 Service Explorer

9 Self-Diagnosis and Special Mode Setting

9.1. Self-Diagnosis Functions

9.2. Special Modes Setting

9.3. Service Modes

10 Assembling and Disassembling

10.1. Disassembly Flow Chart

10.2. P.C.B. Positions

10.3. Top Cover

10.4. Front Panel

10.5. Digital P.C.B.

10.6. DVD-RAM Drive

10.7. Power P.C.B.

10.8. Rear Panel

10.9. Front (L) P.C.B.

10.10. Main P.C.B.

11 Service Fixture and Tools

12 Service Positions

12.1. Checking and Repairing of Power P.C.B.

12.2. Checking and Repairing of Digital P.C.B.

12.3. Checking and Repairing of Main P.C.B.

12.4. Checking and Repairing of DVD-RAM Drive

13 Caution after replacing parts

13.1. After replacing the RAM Drive with new one

13.2. When the unit does not operate normally after replacing

the Timer Microprocessor or Main P.C.B.

14 Standard Inspection Specifications after Making Repairs

15 Voltage and Waveform Chart

15.1. Power P.C.B.

15.2. Main P.C.B.

15.3. Tuner P.C.B.

15.4. P9001 Connector

15.5. Waveform Chart

16 Abbreviati ons

17 Block Diagram

17.1. Power Supply Block Diagram

17.2. Analog Video Block Diagram

17.3. Analog Audio Block Diagram

17.4. Analog Timer Block Diagram

18 Schematic Diagram

18.1. Interconnection Schematic Diagram

18.2. Main Power Supply Schematic Diagram

18.3. Sub Power Section (Main P.C.B. (1/5)) Schematic

Diagram (P)

18.4. Main Net Section (Main P.C.B. (2/5)) Schematic Diagram

(M)

18.5. Video I/O Section (Main P.C.B. (3/5)) Schematic Diagram

(V)

18.6. Audio Main Section (Main P.C.B. (4/5)) Schematic

Diagram (A)

18.7. Timer Section (Main P.C.B. (5/5)) Schematic Diagram (T)

18.8. Tuner Pack Schematic Diagram

19 Print Circuit Board

19.1. Power P.C.B.

19.2. Main P.C.B.

19.3. Tuner P.C.B., Front (L) P.C.B.

20 Exploded Views

20.1. Casing Parts & Mechanism Section

20.2. Packing & Accessories Section

21 Replacement Parts List

DMR-ES10P / DMR-ES10PC

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 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

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.

1.2. Caution for fuse replacement

DMR-ES10P / DMR-ES10PC

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 handlin g 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 handlin g 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).

DMR-ES10P / DMR-ES10PC

3 Precaution of Laser Diode

4 Handling the Lead-free Solder

4.1. 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

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).

· W hen 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.

solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher.

5 Each Button

DMR-ES10P / DMR-ES10PC

6 New Feature

6.1. Quick start function(REC)

1. General

A few seconds after tuning on the unit,you can start recording to DVD-RAM,HDD.

You can switch the operation of this function (ON/OFF) on the menu screen. .

2. Quick start(REC) principle

In the power-off at Quick start, only power supplies for video IC,tuner and storage media are cut off.

When the REC button is pushed a few second after the power button is pushed, Audio and Video data are stored in

DDR SDRAM before a storage media(DVD-RAM or HDD) preparation.

*Preparation time → DVD-RAM: Fabout 8seconds

After a storage media(DVD-RAM or HDD) preparation,Audio and Video data are transfer from DDR SDRAM to the

storage media.

DMR-ES10P / DMR-ES10PC

7 Taking out the Disc from RAM-Drive Unit when the Disc

cannot be ejected by OPEN/CLOSE button

7.1. Forcible Disc Eject

7.1.1. 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.

7.1.2. 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 simultaneousl y for 5 seconds.

7.2. 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 Opener Roller is seen through the Opener position Checking Hole, and tighten 4 screws.

DMR-ES10P / DMR-ES10PC

8 Service Explorer

Confirm “RAM-Drive Last Error” in Service Mode

Execute Service Mode

1. Press [REC], [CH UP] and [OPEN/CLOSE] simultaneously for 5 second s when P-off.

FL Display:

*After finishing display “(7). Factor of Drive Error occurring”, press [0] [2] ~[1] [9] keys of the Remote Controller so that 19 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.

(5) Error occurring Disc type is display ed 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 2 PVC Pioneer Japan 3 MCC Mitsubishi Chemical Corporation Japan 4 TDK TDK Japan 5 MXL Maxell Japan 6 MCI MITUI CHEMICALS Japan 7 JVC Victor JVC Japan 8 TAIYOYUDEN Taiyo yuden Japan

TYG 9 GSC 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

DMR-ES10P / DMR-ES10PC

DVD-RAM Disc

No. FL Display (Disc Maker´s ID) Disc Maker Country 1 MEI Panasonic 2 MATSUSHITA Panasonic Japan 3 MXL Maxell Japan 4 PRODISC Prodisc Taiwan 5 OPTDISC OPTDISC Taiwan 6 CMC 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 display ed

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

DMR-ES10P / DMR-ES10PC

Error Occurring Disc State

DMR-ES10P / DMR-ES10PC

9 Self-Diagnosis and Special Mode Setting

9.1. 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

U59 Abnormal inner temperature

U99 Hang-up Displayed when communication error has

F00 No error information Initial setting for error code in memory

F58 Drive hardware error When drive unit error is detected, the event is

F34 Initialization error when main

UNSUPPORTUnsupported disc error *An unsupported format disc was played,

NO READ Disc read error *A disc is flawed or dirty.

HARD ERR

detected

microprocessor is started up for program recording

Drive error The drive detected a hard error. “DVD drive error.” Display for 5 seconds.

controller codes are not matched.

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.

occurred between Main microprocessor and Timer microprocessor.

(Error code Initialization is possible with error code initialization and main unit initialization.)

saved in memory. 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.

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.

*A poor quality failed to start. *The track information could not be read.

No display

“*” is remote controller code of the main unit. Display for 5 seconds.

No display

“U59 is displayed for 30 minutes.

No display

Displayed is left until the [POWER] key is pressed.

No display No display

“This disc is incompatible.”

Display for 5 seconds.

“Cannot read. Please check the disc.”

SELF CHECK

Full Program

UNFORMATUnformatted disc error You have inserted an unformatted DVD-RAM

PLEASE WAIT

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.

16 programs are already set. 16 programs are already set. No display

or DVD-RW that is unformatted or recorded on other equipment.

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

DMR-ES10P / DMR-ES10PC

9.2. 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.

Rating password The audiovisual level setting password is

initialized to “Level 8”.

Service Mode Setting every kind of modes for servicing.

*Details are described in “9.3. Service Mode”.

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. While Demonstration Lock is being set, this Forced disc eject function is not accepted.

The display before execution leaves.

Press [STOP], [CH UP] and [OPEN/CLOSE] keys simultaneously for five seconds when power is off.

Open the tray, and press [REC] and [PLAY] simultaneously for 5 seconds.

When the power is off, press [CH UP], [OPEN/CLOSE] and [REC] keys simultaneously for 5 seconds.

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 Timer REC is ON or EXT-LINK is ON, execute “Forced Power-off” after releasing Timer REC or EXT- LINK.

Aging Perform sequence of modes as * Aging

Description shown below continually.

Aging Contents (Example):

Display in P-off mode. Press [Power] key over than 10

seconds.

Display following the then mode. 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 reexecute operation shown above. (*All the main unit’s parameters include tuner 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 reexecute this command. *When releasing Aging mode, press [POWER] key.

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

*When lock the tray.

When the power is on, press [STOP] and [POWER] keys simultaneously for 5 seconds.

initialization” of service mode.

“LOCK” is displayed for 3 seconds. *When unlock the tray.

When the power is on, press [STOP] and [POWER] keys simultaneously for 5 seconds.

“UNLOCK” is displayed for 3 seconds.

*When press OPEN/CLO SE key while the tray being locked.

Press [OPEN/CLOSE] key while the tray being locked.

Display “LOCK” for 3 seconds.

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 5 seconds.

DMR-ES10P / DMR-ES10PC

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.

DMR-ES10P / DMR-ES10PC

9.3. Service Modes

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 “9.1. Self-

Diagnosis Functions”.

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.

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]”

Press [0] [1] in service mode

Press [0] [2] in service mode

‘’＊’’ are version displays. *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

RTSC Return in XP (A & V)

I/P Switch Switch Interlace and Progressive in EE mode.

Output from AV Decoder. *Magenta picture (Saturation rate: 100%) *It is enable to switch Interlace/Progressive by “I/P switch: [1] [4]”

L1 input signal is encoded (XP), decoded (XP) and output decoded signal to external without DISC recording and DISC playback.

*Initial setting is “Interlace”. *This command is effective during executing “White Picture Output”, “Magenta Picture Output” and “RTSC Return in XP (A & V)” modes.

*Initial mode is “Interlace”. Press [1] [2] in service mode.

Switch Interlace/Progressive Press [1] [4] in Magenta Picture

Initial mode: EE2/ Interlace/ XP/ Audio 48kHz

Switch Interlace/Progressive Press [1] [4] in RTSC Return XP

Audio 44.1 kHz/ 48 kHz Switch Press [2] [4] in RTSC Return XP

Initial mode is Interlace

Switch Interlace/Progressive

Output mode. *I/P are switched alternately.

Press [1] [3] in service mode.

mode. *I/P are switched alternately.

mode. *48 kHz / 44.1 kHz are switched alternately.

Press [1] [4] in I/P Switch mode. *I/P are switched alternately.

Item FL display Key operation

Mode name Description (Remote controller key)

Audio Mute (XTMUTE) Check whether mute is applied normally by

Press [2] [1] in service mode.

the timer microprocessor.

DMR-ES10P / DMR-ES10PC

Audio Mute (XDMUTE) Check whether mute is applied normally by

the Digital P.C.B..

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].

Laser Used Time

Check laser used time (hours) of drive.

Indiction

Delete the Laser Used Time

Laser used time stored in the memory of the unit is deleted.

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. *Details are described in “8. Service Explorer”.

Press [2] [2] in service mode.

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.

Press [4] [1] in service mode.

l(*****) is the used time display in hour. lLaser used time of DVD/ CD in Playback/Recording mode is counted.

Press [9] [5] in service mode.

1. Error Number is displayed for 5 seconds.

Press [4] [2] in service mode. When “INFO******” is being displayed, past 19 error histories can be displayed by pressing [0] [1]

- [1] [9]

2. Time when the error has occurred is displayed for 5 seconds.

Y: Year MM: Month DD: Day hh: Hour mm: Minute ss: Second

3. Last Drive Error (1/2) is displayed for 5 seconds.

4. Last Drive Error (2/2) is displayed for 5 seconds.

5. Error occurring Disc type is displayed for 5 seconds.

6. Disc Maker ID is displayed for 5 seconds.

7. Factor of Drive Error occurring is left displayed

In case that the maker cannot be identified, display is black out.

Delete the Last Drive Error

Delete the Last Drive Error information stored on the DVD RAM-Drive.

Press [9] [6] in service mode.

DMR-ES10P / DMR-ES10PC

Item FL display Key operation

Mode name Description (Remote controller key)

Turn on all FL/LEDs All segments of FL and all LEDs are turned

on.

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.

S2 signal output Forcibly superimpose the S2 signal (approx.

2V DC) on the EE chroma signal, and check the output on the S terminal.

Front connection inspection

Press all front keys and check the connection between Main P.C.B. and Front key Switches.

Production Date Display Display the date when the unit was produced.

Display the accumlated

Display the accumulated unit´s working time.

working time

All segments are turned on. Press [5] [1] in service mode.

Press [5] [2] in service mode.

Press [5] [3] in service mode.

Press [5] [4] in service mode.

(1) Each time a key is pressed, segment turned on increases one by one. (2) Total umber of keys that have been pressed.

Press [6] [1] in service mode.

YYYY: Year MM: Month DD: Day

Press [6] [4] in service mode.

(Indicating unit: Second)

Display the Error History Display the Error History stored on the unit. Display reason of error for 5

seconds.

Display the time when the error has occurred for 5 seconds..

YY: Year MM: Month DD: Day HH: Hour MM: Minute Accumulated working time till occuring of the error is left displayed.

(Indicating unit: Second)

Delete the Error History Delete Error History information stored on the

unit.

Tray OPEN/CLO SE Test The RAM drive tray is opened and closed

repeatedly.

“*” is number of open/close cycle times.

Error code initialization Initialization of the last error code held by

timer (Write in F00)

Press [6] [5] in service mode. Then press [0] [1] ~ [1] [9], the past 19 error histories are displayed.

Press [9] [7] in service mode.

Press [9] [1] in service mode *When releasing this mode, press the [POWER] button of Remote Controller more than 10 seconds.

Press [9] [8] in service mode.

Initialize Service Last Drive Error, Error history and Error

Press [9] [9] in service mode. Codes stored on the unit are initialized to factory setting.

Finishing service mode Release Service Mode. Display in STOP (E-E) mode. Press power button on the front

panel or Remote controller in

service mode.

DMR-ES10P / DMR-ES10PC

10 Assembling and Disassembling

10.1. Disassembly Flow Chart

The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the servicing.

To assemble the unit, reverse the steps shown in the chart below.

10.2. P.C.B. Positions

DMR-ES10P / DMR-ES10PC

10.3. Top Cover

10.5. Digital P.C.B.

1. Remove the 2 screws (A) and 3 screws (B).

2. Slide Top Cover rearward and open the both ends at rear side of the Top Cover a little and lift the Top Cover in the direction of the arrows.

1. Remove FFC and a Screw (A).

2. Lift up Digital P.C.B. slightly so to disconnect Conne ctor to remove Digital P.C.B.

CAUTION 1:

When replacing Digital P.C.B., pay attention as below.

10.4. Front Panel

1. Unlock 3 tabs (A) and 2 tabs (B) in this order to remove Front Panel.

(The tab (A) and (B) should be unlocked at the same time, respectively.)

CAUTION 2:

Be careful to do not touch surface of CSP ICs.

If you have touched surface of CSP IC, clean up with alcohol and so on to prevent oxidation.

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