Panasonic DMR-BST750EG, DMR-BST755EG, DMR-BST850EG, DMR-BST855EG, DMR-BST950EG Service Manual

ORDER NO.PCZ1507103CE

Blu-ray Disc Recorder

Model No. DMR-BST750EG

DMR-BST755EG DMR-BST850EG DMR-BST855EG DMR-BST950EG

Colours

(S) .............. Silver Type (Only BST755EG, BST855EG)

(K) .............. Black Type (Only BST750EG, BST850EG,

BST950EG)

234

TABLE OF CONTENTS

PAG E PAG E

1 Safety Precautions -----------------------------------------------5

1.1. General guidelines -----------------------------------------5

2Warning--------------------------------------------------------------6

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices---------------6

2.2. Precaution of Laser Diode -------------------------------7

2.3. Service caution based on legal restrictions----------8

3 Service Navigation------------------------------------------------9

3.1. External HDD (USB-HDD) -------------------------------9

3.2. How to format for HDD when replacement of HDD or Main P.C.B. ------------------------------------- 12

3.3. Combination of Multiple Pressing on the Remote Control------------------------------------------- 12

3.4. Entering Special Modes with Combination of Multiple Pressing on the Remote Control ---------- 13

3.5. Description of the Self Diagnosis < Operation Method, Details > ---------------------------------------- 15

3.6. Service Information -------------------------------------- 22

3.7. Micro Fuse conducting check ------------------------- 23

3.8. (HDD/BD Drive) Service Navigation----------------- 24

3.9. Operation check when a USB device is connected --------------------------------------------------26

3.10. Wi-Fi Module (Internal) Malfunction Check (Simplified Method) ------------------------------------- 27

3.11. Check with Tuner Service Mode --------------------- 29

4 Specifications ---------------------------------------------------- 33 5 Location of Controls and Components------------------ 35 6 Installation Instructions---------------------------------------37

6.1. Taking out the Disc from BD Drive Unit when the Disc cannot be ejected by OPEN/CLOSE button--------------------------------------------------------37

7 Service Mode -----------------------------------------------------38

7.1. Self-Diagnosis and Special Mode Setting---------- 38

8 Service Fixture & Tools --------------------------------------- 65 9 Disassembly and Assembly Instructions --------------- 66

9.1. Unit----------------------------------------------------------- 66

9.2. BD Drive ----------------------------------------------------73

10 Measurements and Adjustments -------------------------- 79

10.1. Service Positions -----------------------------------------79

10.2. Caution for Replacing Parts ---------------------------82

10.3. Standard Inspection Specifications after Making Repairs -------------------------------------------82

11 Bloc k Dia gra m --------------------------------------------------- 83

11.1. Overall Block Diagram ----------------------------------83

11.2. Power Supply Block Diagram -------------------------84

11.3. Analog Audio/Video Block Diagram ----------------- 85

11.4. Timer Block Diagram------------------------------------ 86

11.5. Digital P.C.B. Regulator Block Diagram ------------87

11.6. Digital Block Diagram (1/2) ---------------------------- 88

11.7. Digital Block Diagram (2/2) ---------------------------- 89

11.8. CI Block Diagram-----------------------------------------90

12 Wiring Connection Diagram --------------------------------- 91

12.1. Interconnection Schematic Diagram ---------------- 91

13 Schematic Diagram--------------------------------------------- 93 14 Printed Circuit Board ------------------------------------------ 93 15 Exploded View and Replacement Parts List -----------93

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 1M and 5.2M. 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 1.5k, 10 watts resistor, in parallel with a

0.15F 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

2Warning

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatic Sensitive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called 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).

2.2. Precaution of Laser Diode

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. SVKZ000001 ----------- (0.3mm 100g Reel) SVKZ000002 ----------- (0.6mm 100g Reel) SVKZ000003 ----------- (1.0mm 100g Reel)

Note

* Ingredient: tin (Sn), 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%. (Flux cored)

3 Service Navigation

3.1. External HDD (USB-HDD)

Please use a confirmed USB-HDD.

For the latest information on confirmed USB-HDDs, please check the following website. http://panasonic.jp/support/global/cs/

• Certain non-confirmed USB-HDDs cannot be used with this unit.

• If a problem occurs with the USB-HDD, please contact the manufacturer of the device.

3.1.1. Connecting the USB-HDD

Connect this unit with optional USB-HDD.

• Only one USB-HDD (For recorded titles) can be connected at the same time.

• Do not connect additional HDDs using a USB hub.

• For details about connection method, refer to the instructions supplied with the USB-HDD.

3.1.2. Disconnecting the USB-HDD

Please use the following procedure to disconnect. Disconnecting without following this procedure may result in the loss of recorded content from the USB-HDD or the internal HDD.

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "HDD/ Disc/ USB-HDD" in "Basic Settings", then press [OK].

5. Select "Settings for USB-HDD" in "HDD/ Disc/ USB-HDD", then press [OK].

6. Select "USB-HDD Disconnection", then press [OK].

7. Select "Yes", then press [OK].

8. Disconnect the USB-HDD from this unit.

3.1.3. Registering the USB-HDD

3.1.3.1. Registering the USB-HDD

• If you use a USB-HDD with this unit, the USB-HDD must first be registered on this unit.

- Registering of a USB-HDD will format the USB-HDD and all the content already recorded will be deleted.

- Up to eight USB-HDDs can be registered on this unit.

- Registered USB-HDDs cannot be used with devices other than this unit.

• If the registering screen appears when connecting the USB-HDD, go to step 7.

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "HDD/ Disc/ USB-HDD" in "Basic Settings", then press [OK].

5. Select "Settings for USB-HDD" in "HDD/ Disc/ USB-HDD", then press [OK].

6. Select "USB-HDD Registration", then press [OK].

7. Select "Yes", then press [OK].

• If you have already registered eight USB-HDDs, it will be necessary to delete one or more of them before registering a new USB-HDD.

The message screen appears:

1. Select "Yes", then press [OK].

2. Select the USB-HDD to cancell, then press [OK]. The confirmation screen appears.

3. Select "Yes", then press [OK].

8. When the registering is complete, message screen appears. Press [OK].

9. The confirmation screen appears. Press [OK].

3.1.3.2. Settings for USB-HDD

Delete all titles

Delete all titles on the USB-HDD.

- Delete does not work if one or more titles are protected.

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "HDD/ Disc/ USB-HDD" in "Basic Settings", then press [OK].

5. Select "Settings for USB-HDD" in "HDD/ Disc/ USB-HDD", then press [OK].

6. Select "USB-HDD Management", then press and hold [OK] for 3 seconds.

7. Select "Delete all titles", then press [OK].

8. Select "Yes" and press [OK].

9. Select "Start" and press [OK].

10. The confirmation screen appears. Press [OK].

Format USB-HDD

Formatting deletes all contents, and they cannot be restored. Check carefully before proceeding.

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "HDD/ Disc/ USB-HDD" in "Basic Settings", then press [OK].

5. Select "Settings for USB-HDD" in "HDD/ Disc/ USB-HDD", then press [OK].

6. Select "USB-HDD Management", then press and hold [OK] for 3 seconds.

7. Select "Format USB-HDD", then press [OK].

8. Select "Yes" and press [OK].

9. Select "Start" and press [OK]. Then formatting starts.

10. Press [OK] after formatting completed.

3.1.3.3. To cancell all USB-HDD registrations

• If you register a USB-HDD, all the content already recorded on the USB-HDD will be deleted.

• It is not possible to play back the content on the USB-HDD whose registration has been cancelled.

• You can check the registration number of the USB-HDD on the DIRECT NAVIGATOR.

Cancellation of all USB-HDD Registrations

This function cancells the registrations of all the USB-HDDs registered on this unit. Only do this if you are going to dispose of this unit.

- Before operation, perform "3.1.2. Disconnecting the USB-HDD" and remove the USB-HDD.

- It is not possible to play back the content from a USB-HDD whose registration has been cancelled.

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "HDD/ Disc/ USB-HDD" in "Basic Settings", then press [OK].

5. Select "Settings for USB-HDD" in "HDD/ Disc/ USB-HDD", then press [OK].

6. Select "Cancellation of all USB-HDD Registrations", then press and hold [OK] for 3 seconds.

7. Select "Yes", then press [OK].

8. The confirmation screen appears. Select "Yes", and press [OK].

9. When the cancellation is complete, message screen appears. Press [OK].

3.1.3.4. Registration procedure of USB-HDD for inspection

This function registers a USB-HDD for inspection aside from 8 USB-HDDs that can be registered in Normal mode. If the USB-HDD for inspection is registered in User mode, it cannot be erased. Make sure to use Special mode to register the USBHDD for inspection.

Registration procedure

1. Perform "3.4.3. Nondisclosure mode 2" to enter the Service mode.

2. Press the [7][4] buttons of remote control in the Service mode to enter the Special mode.

3. If the new USB-HDD is connected, it is automatically formatted/registered. (There is no TV monitor display for registration.) The USB-HDD registered in the Special mode can be operated using the same functions (format, record/play/edit, dubbing) as those for USB-HDDs registered in the Normal mode. The Special mode can be cancelled at power "OFF" only. (Cancelling the Special mode will erase the registration in the Special mode.)

3.1.4. Operation check when USB HDD is connected

Check the operation status (normal or abnormal) of the USB connection part as follows.

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "HDD/ Disc/ USB-HDD" in "Basic Settings", then press [OK].

5. Select "Settings for USB-HDD" in "HDD/ Disc/ USB-HDD", then press [OK].

6. Select "USB-HDD Registration", then press [OK].

Normal operation:

The registered USB-HDD is automatically displayed when connected. (*Displayed items differ depending on the connected USB-HDD.)

Abnormal operation (1):

When the USB-HDD cannot be detected, "Cannot detect USB HDD." etc. will be automatically displayed. (*When the cable (USB cable) between the main unit and the USB-HDD is poorly connected (cable disconnection), etc.)

Abnormal operation (2):

When a wrong USB-HDD incompatible with this unit is connected, "Connected USB device cannot be used with this unit.", etc. will be automatically displayed. (*Incompatible USB-HDD: When devices with capacity of less than 160GB or more than 3TB or other USB devices are connected)

Abnormal operation (3):

When more than 1 USB-HDD are connected at the same time, "Registration of USB HDD must be done with only one USB storage device connected.", etc. will be automatically displayed.

Abnormal operation (4):

When a USB-HDD compatible only with USB 1.1 or below is connected, "Connected USB device cannot be used with this unit.", etc. will be automatically displayed.

3.2. How to format for HDD when replacement of HDD or Main P.C.B.

3.2.1. How to escape " HDD Error " indication on GUI display.

1. When exchange HDD or Main P.C.B., the " HDD Error " screen is displayed, but, according to a following procedure, please format HDD.

2. Press power button to turn off the power first, then turn on the power with the [ GUIDE ] button on remote-control. (Shown in Reference screen 1)

(Reference screen 1)

3. Press [ RETURN ] button to move to the normal display.

3.2.2. Procedure of the " HDD format ".

1. Press [FUNCTION MENU].

2. Select "Setup" in "Others", then press [OK].

3. Select " HDD/Disc/USB-HDD " and press [OK].

4. Select " HDD Management " and press [OK] for 3 seconds.

5. Select " Format HDD " and press [OK].

6. Select " Yes " and press [OK].

7. Select " Start " and press [OK]. Then formatting starts.

8. Press [OK] after formatting completed.

9. Press [RETURN] to exit setting mode.

3.3. Combination of Multiple Pressing on the Remote Control

Press multi-buttons (in combination) on the remote control simultaneously for operations, such as initialization or service mode, etc. There are no multiple pressing functions on the previous remote controls, thus, please be sure to use the supplied remote control.

3.4. Entering Special Modes with Combination of Multiple Pressing on the Remote Control

Enter the following special modes by multiple pressing functions on the supplied remote control. After entering each mode, switch to the desired menus for operation.

3.4.1. Disclosure mode (Combination of multiple pressing: [OK] [Blue] [Yellow])

Press and hold [OK] [Blue] [Yellow] on the remote control simultaneously for 5 sec., then "00 RET" is displayed on FL display window.

3.4.2. Nondisclosure mode 1 (Combination of multiple pressing: [6] [7] [Yellow])

Press and hold [6] [7] [Yellow] on the remote control simultaneously for 5 sec., then "50 RET" is displayed on FL display window.

3.4.3. Nondisclosure mode 2 (Combination of multiple pressing: [5] [9] [Red])

Press and hold [5] [9] [Red] on the remote control simultaneously for about 5 sec., then "70 RET" is displayed on FL display window.

3.5. Description of the Self Diagnosis < Operation Method, Details >

3.5.1. How to check the diagnosis code

This device can display the device information with a 16 digit number (Diagnosis code) on the monitor in order to promptly check the device status.

3.5.1.1. Procedure of the diagnosis code check

1. Turn power on. (E-E mode without recording or running as a server)

2. Press and hold [5], [9] and [Red] buttons on the remote control simultaneously for 5 seconds or more until front display indicates "70 RET" as shown below.

3. Press [POWER] button on the main unit or [ ] on the remote control several times until front display indicates "96 DIC". Front display indicates as follows by pressing [POWER] or [ ] button.

* If front display indicates "-- -- --" or enter to the other mode, reset by pressing [POWER] button and repeat from first step.

4. Press [OPEN/CLOSE] button on the main unit or [OK] button on the remote control to run self diagnosis.

5. Press [OK] and then following "Diagnosis Code" will be displayed.

Item Details

Model Name Display the model name

Software version Display the software version

Wireless LAN module Display the wireless LAN module version

Wireless LAN adapter Display the wireless LAN adaptor module version

(No display) Wireless LAN unsupported model Device ID Display the device ID

Diagnosis code Display the diagnosis code

(Built-in wireless LAN model)

(Wireless LAN adaptor applicable model)

Release from self Diagnosis mode:

1. Press the [POWER] button on the main Unit.

3.5.1.2. Description of the self diagnosis code

self diagnosis code details:

Diagnosis details Diagnosis details

Drive HDMI terminal 2

HDD Reserved ("0" displays always)

Reserved ("0" displays always) Reserved ("0" displays always)

USB-HDD diagnosis Reserved ("0" displays always)

Digital P.C.B. (CPU/Flash/DDR/HDMI etc.) Failure history of Drive/HDD/FAN

TUNER system Reserved ("0" displays always)

Reserved ("0" displays always) Reserved ("0" displays always)

Main P.C.B. (EEPROM/Ether) Reserved ("0" displays always)

* If the power does not turn on or CPU does not work properly, self diagnosis will not run.

In that case, check the power supply or P.C.B. connection.

Specifications of Diagnostic Code

1. BD Drive

< Diagnosis Result >

0 No trouble found on the drive.

Please check other diagnosis items.

1 Unable to communicate with the drive. Check any problems with connection of Drive FPC,

power supply cable for drive or power supply circuit.

If no trouble found, there is a high possibility of drive unit failure itself. 2 Drive unit failure itself. 3 Error caused by disk or disc control.

If this error appears only in specific disk, check whether the same error appears with other discs

playback.

Check the cable connection to drive.

If the turntable is dirty, clean it up to avoid slip of disc.

If the disk cannot be read/written properly after cleaning, drive unit replacement may be

necessary. 8 Unable to execute the diagnosis function properly.

There is a possibility of malfunction on the digital P.C.B. 9 Error diagnosed as unsupported drive. Drive unit replacement is necessary.

Other Try to run self diagnosis again.

Example: BD Drive is not recognizable.

2. HDD

< Diagnosis Result >

0 No trouble found on HDD.

Please check other diagnosis items.

1 Unable to communicate with HDD. Check any problems with connection of all cables for HDD or

power supply circuit.

If no trouble found, there is a high possibility of drive unit failure itself. 2 HDD failure itself. Replace it. 8 Unable to execute the diagnosis function properly.

There is a possibility of malfunction on the digital P.C.B.

Other Try to run self diagnosis again.

Example: HDD is not recognizable.

3. USB HDD Diagnosis

< Diagnosis Result >

0 No trouble found on USB HDD.

Please check other diagnosis items.

1 No USB HDD is connected or some other device is connected.

Check connection of USB cable or power supply circuit.

If no trouble found, there is a high possibility of USB HDD failure itself. 2 USB HDD failure itself. Replace it. 6 Several USB HDD are connected. 7 Unsupported USB HDD is connected. 8 Unable to execute the diagnosis function properly.

There is a possibility of malfunction on the digital P.C.B.

Other Try to run self diagnosis again.

Example: USB HDD is not recognizable.

4. Digital P.C.B./Tuner/Main P.C.B. System Diagnosis (1) IC communication on the digital P.C.B. (CPU and Flash/DDR/HDMI, etc.)

< Diagnosis Result >

0 No trouble found on the digital P.C.B. 1 Communication error between CPU and FLASH/DDR.

There is a high possibility of parts failure on the digital P.C.B.

2 Communication error between CPU and HDMI-LSI,

There is a high possibility of parts failure on the digital P.C.B.

3 Communication error between CPU and FLASH/DDR, and between CPU and HDMI-LSI.

Take measures of above "1" or "2".

4 HDMI-CEC circuit is not worked properly.

There is a high possibility of parts failure on the digital P.C.B.

5 Communication error between CPU and FLASH/DDR, and HDMI-CEC circuit is not worked

properly. Take measures of above "1" and "4".

6 Communication error between CPU and HDMI-LSI, and HDMI-CEC circuit is not worked

properly. Take measures of above "2" and "4".

7 Communication error between CPU and FLASH/DDR, between CPU and HDMI-LSI and HDMI-

CEC circuit is not worked properly. Take measures of above "3" and "4".

Other Try to run self diagnosis again.

(2) IC Communication of TUNER System

< Diagnosis Result >

0 No communication error between digital tuner and IC. 1 Communication error between digital tuner (OFDM/digital modulation IC) and IC.

There is a high possibility of digital tuner (OFDM/digital modulation IC) defect, or communication failure between ICs.

2 Communication error between the digital tuner (LNB/digital modulation IC) and IC.

There is a high possibility of digital tuner (LNB/Digital Modulation IC) defect, or communication failure between ICs.

3 Communication error between digital tuner (OFDM/digital modulation IC) and IC,

Digital Tuner (LNB/Digital Tuner Modulation IC) and IC. There is a high possibility of Digital Tuner (OFDM/Digital Modulation IC) defect, Digital Tuner (LNB/Digital Modulation IC) defect, or a communication failure between ICs.

Other Try to run self diagnosis again.

(3) Main P.C.B. IC communication (e.g. EEPROM)

Digital P.C.B. IC communication (e.g. Ether)

< Diagnosis Result >

0 No trouble found. 2 Communication error between the EEPROM of Main P.C.B. and IC.

Check the connection between digital P.C.B. and Main P.C.B. If no trouble found, malfunction on the Main P.C.B. is suspected.

4 Communication error between CPU and ETHER-LSI.

There is a high possibility of parts failure on the digital P.C.B.

6 Communication error between CPU and EEPROM of Main P.C.B., and CPU and ETHER-LSI.

Take measures of above "2" and "4".

Other Try to run self diagnosis again.

Example: Communication error between Ether-LSI and CPU

5. HDMI (SUB) Diagnosis (DMR-BST950EG)

< Diagnosis Result >

0 No trouble found on the digital P.C.B. 2 Communication error between CPU and HDMI-LSI,

There is a high possibility of parts failure on the digital P.C.B.

Other Try to run self diagnosis again.

6. Failure History and motor

< Diagnosis Result >

0 No error history 1 If there is error in drive diagnosis, there is a possibility that the drive itself fails.

2 If there is error in HDD diagnosis, there is a possibility that HDD itself fails.

3 There are errors in drive diagnosis and HDD diagnosis.

4 Fan motor may fail.

5 There is error in drive diagnosis and the fan motor may fail.

6 There is error in HDD diagnosis and the fan motor may fail.

7 There are errors in HDD, drive diagnosis and the fan motor may fail.

Other Try to run self diagnosis again.

* Refer to the drive diagnosis results. If there is no error in drive diagnosis, there is a possibility that the cause of malfunction is on the digital P.C.B.

* Refer to HDD diagnosis results. If there is no error in HDD diagnosis, there is a possibility that the cause of malfunction is on the digital P.C.B.

Take measures of above "1" and "2".

Check fan motor cable or related circuit.

Take measures of above "1" and "4".

Take measures of above "2" and "4".

Take measures of above "3" and "4".

Example: Fan motor may fail

3.6. Service Information

This service manual contains technical information which will allow service personnel's to understand and service this model. Please place orders using the parts list and not the drawing reference numbers.

3.7. Micro Fuse conducting check

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

3.8. (HDD/BD Drive) Service Navigation

3.8.1. HDD/BD Drive Malfunction check (Simplified Method)

Perform simple quality judgement process of HDD/BD Drive according to the following operations.

1. Execute Service Mode

1) Turn the power off.

2) Press the [5] [9] and [RED] button simultaneously for 5 seconds, then "70 RET" is displayed on FL.

3) Press the [ ] button to select until "80 SRV" is displayed on FL.

4) Press the [OK] button.

5) It is displayed on FL as "Welcome-->SERV".: It is shown to have entered the service mode.

2. Press [3] [8] of remote control keys in service mode.

3. Judge the quality on FL display.

3.8.2. BD Drive Operation check flow

Perform quality judgement process of BD Drive according to the following operation.

*1: The drive supports the following error sense keys:

Contents Sense

key NO SENSE 00 Successful completion. RECOVERED ERROR 01 Successful completion through recovery. NOT READY 02 The drive is unable to access the disc. MEDIUM ERROR 03 An error caused by medium error has occurred. HARDWARE ERROR 04 An error caused by the drive hardware has occurred. ILLEGAL REQUEST 05 The CDB or parameter is illegal. UNIT ATTENTION 06 The drive is alerting the host to some event. DATA PROTECTED 07 The disc is read-protected or write-protected. ABORTED COMMAND 0B The drive has aborted an I/O process or command execution due to a reason not relevant to any other

sense key, for example, a protocol violation on the interface.

Description

3.9. Operation check when a USB device is connected

You can check the operation status (normal or abnormal) of the USB connection part of this unit easily as shown below.

Connect each device to the USB terminal on the front panel and check the operation status on the TV monitor.

Normal operation:

Automatically displayed when the USB connection is made to a digital camera, etc. (Example below: When motion video materials have been recorded) (*Displayed items differ depending on the recorded contents.)

Abnormal operation (Example 1):

Warning is displayed automatically if overcurrent is detected when a USB device is connected. (*When a USB device or this unit's USB terminal shorts out or the power supply type of USB device is connected)

Abnormal operation (Example 2):

When the terminal of USB device is damaged or open, there is no display on the TV monitor.

3.10. Wi-Fi Module (Internal) Malfunction Check (Simplified Method)

3.10.1. Procedure of the Wi-Fi Module (Internal) Malfunction Check

3.10.1.1. Method of Wireless LAN Setting

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "Network" in "Basic Settings", then press [OK].

5. Select "Network Settings" in "Network", then press [OK].

6. Select "Wireless" in "LAN Connection Mode".

7. Press [OK]. The following "Wireless Setting screen (example)" is displayed.

3.10.1.2. Method of displaying Wireless LAN Module Version

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "Others" in "Basic Settings", then press [OK].

5. Select "System Information" in "Others".

6. Press [OK]. The following "System Information screen (example)" is displayed.

3.10.1.3. Confirm method of Wireless LAN Module invalidity/effective

1. Press [FUNCTION MENU].

2. Select "Setup" in "FUNCTION MENU", then press [OK].

3. Select "Basic Settings" in "Setup (Adjustment for Recorder functions.)", then press [OK].

4. Select "Display" in "Basic Settings", then press [OK].

5. Press [STATUS], more than 5 seconds. The following "Display screen (example)" is displayed.

In case of Wireless LAN Module effective.

In case of Wireless LAN Module invalid.

6. In case of Wireless LAN Module effective, Wireless LAN Module or Wireless LAN Module connection cable may be the source of problem.

7. Please finally check the operation of the fact.

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