Sony BCU-100 User manual

COMPUTING UNIT
BCU-100
MEMORY EXTENSION ADAPTER
BKCU-EX1
MEMORY MODULE 8GB
BKCU-MY8D
VIDEO DISPLAY BOARD
BKCU-VD1
MAINTENANCE MANUAL
1st Edition (Revised 2)

BCU-100 MM
!WARNING
This manual is intended for qualified service personnel only.
To reduce the risk of electric shock, fire or injury, do not perform any servicing other than that
contained in the operating instructions unless you are qualified to do so. Refer all servicing to
qualified service personnel.
!WARNUNG
Die Anleitung ist nur für qualifiziertes Fachpersonal bestimmt.
Alle Wartungsarbeiten dürfen nur von qualifiziertem Fachpersonal ausgeführt werden. Um die
Gefahr eines elektrischen Schlages, Feuergefahr und Verletzungen zu vermeiden, sind bei
Wartungsarbeiten strikt die Angaben in der Anleitung zu befolgen. Andere als die angegeben
Wartungsarbeiten dürfen nur von Personen ausgeführt werden, die eine spezielle Befähigung
dazu besitzen.
!AVERTISSEMENT
Ce manual est destiné uniquement aux personnes compétentes en charge de l’entretien. Afin
de réduire les risques de décharge électrique, d’incendie ou de blessure n’effectuer que les
réparations indiquées dans le mode d’emploi à moins d’être qualifié pour en effectuer d’autres.
Pour toute réparation faire appel à une personne compétente uniquement.
BCU-100 Serial No. 10001 and Higher
BKCU-EX1 Serial No. 10001 and Higher
BKCU-MY8D Serial No. 10001 and Higher
BKCU-VD1 Serial No. 10001 and Higher
For safety, do not connect the connector for peripheral
device wiring that might have excessive voltage to the
following port(s).
: NETWORK-1 to 2 connector
Follow the instructions for the above port(s).

BCU-100 MM
1 (P)
Vorsicht!
Explosionsgefahr bei unsachgemäßem Austausch
der Batterie.
Ersatz nur durch denselben oder einen vom
Hersteller empfohlenen ähnlichen Typ. Entsorgung
gebrauchter Batterien nach Angaben des
Herstellers.
ATTENTION
Il y a danger d’explosion s’il y a remplacement
incorrect de la batterie.
Remplacer uniquement avec une batterie du même
type ou d’un type équivalent recommandé par le
constructeur.
Mettre au rebut les batteries usagées conformément
aux instructions du fabricant.
ADVARSEL!
Lithiumbatteri-Eksplosionsfare ved fejlagtig
håndtering.
Udskiftning må kun ske med batteri
af samme fabrikat og type.
Levér det brugte batteri tilbage til leverandøren.
ADVARSEL
Lithiumbatteri - Eksplosjonsfare.
Ved utskifting benyttes kun batteri som
anbefalt av apparatfabrikanten.
Brukt batteri returneres
apparatleverandøren.
VARNING
Explosionsfara vid felaktigt batteribyte.
Använd samma batterityp eller en likvärdig typ
som rekommenderas av apparattillverkaren.
Kassera använt batteri enligt gällande
föreskrifter.
VAROITUS
Paristo voi räjähtää jos se on virheellisesti
asennettu.
Vaihda paristo ainoastaan laitevalmistajan
suosittelemaan tyyppiin.
Hävitä käytetty paristo valmistajan ohjeiden
mukaisesti.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type
recommended by the manufacturer.
Dispose of used batteries according to the
manufacturer’s instructions.
WARNING
When installing the unit, incorporate a readily
accessible disconnect device in the fixed wiring, or
connect the power cord to a socket-outlet which must be
provided near the unit and easily accessible, so that the
user can turn off the power in case a fault should occur.
WARNUNG
Beim Einbau des Geräts ist daher im Festkabel ein
leicht zugänglicher Unterbrecher einzufügen, oder das
Netzkabel mu
ß mit einer in der Nähe des Geräts
befindlichen, leicht zugänglichen Wandsteckdose
verbunden werden, damit sich bei einer
Funktionsstörung die Stromversorgung zum Gerät
jederzeit unterbrechen lä
ß t.

1 (E)
BCU-100 MM
Table of Contents
Manual Structure
Purpose of this manual ........................................................... 3 (E)
Related manuals ..................................................................... 3 (E)
Trademarks ............................................................................. 3 (E)
1. Service Overview
1-1. Main Parts Location ................................................. 1-1 (E)
1-2. Removal of Cabinet ................................................. 1-1 (E)
1-3. Replacing the Main Parts ......................................... 1-2 (E)
1-3-1. Replacing the Power Supply Unit .................. 1-2 (E)
1-3-2. Replacing the Fan ........................................... 1-3 (E)
1-3-3. Replacing the Fan for the Power Supply
Unit ................................................................. 1-5 (E)
1-3-4. Replacing the Lithium Battery ....................... 1-5 (E)
1-3-5. Replacing the HDD ........................................ 1-6 (E)
1-4. Notes on Replacing the IC/Board ............................ 1-7 (E)
1-5. Updating the Firmware ............................................ 1-8 (E)
1-6. Circuit-Protection Part ........................................... 1-11 (E)
1-7. Unleaded Solder ..................................................... 1-11 (E)
1-8. Circuit Description ................................................. 1-12 (E)
1-8-1. BCU-100 ...................................................... 1-12 (E)
1-8-2. BKCU-EX1 .................................................. 1-16 (E)
1-8-3. BKCU-VD1 .................................................. 1-17 (E)
1-9. Troubleshooting ..................................................... 1-18 (E)
1-9-1. Summary ...................................................... 1-18 (E)
1-9-2. Self-diagnostic Function .............................. 1-19 (E)
1-9-3. Troubleshooting Flow .................................. 1-20 (E)
1-9-4. Diag Mode (Offline Defect Diagnosis
Function) ...................................................... 1-22 (E)
1-9-5. Checking the Operation State with LED
Indication ...................................................... 1-39 (E)
1-9-6. Error Code List ............................................. 1-43 (E)
1-9-7. System .......................................................... 1-45 (E)
2. Spare Parts
2-1. Notes on Repair Parts ..................................................... 2-1
2-2. Exploded Views .............................................................. 2-2
2-3. Electrical Parts List ......................................................... 2-6
2-3-1. BCU-100 ............................................................... 2-6
2-3-2. BKCU-EX1 ......................................................... 2-45
2-3-3. BKCU-VD1 ......................................................... 2-63
2-4. Supplied Accessories List ............................................. 2-66
3. Semiconductor Pin Assignments
4. Block Diagrams
Overall ............................................................................ 4-1
BE-28 System Clock ....................................................... 4-2
BE-28 I2C Structure ....................................................... 4-3
BE-28 Reset .................................................................... 4-4
BE-28 Power Supply ...................................................... 4-5
RE-255 ............................................................................ 4-6
MEM-122/MEM-126 (BKCU-EX1) .............................. 4-6
VIF-40 (BKCU-VD1) ..................................................... 4-7
5. Schematic Diagrams
BE-28 .............................................................................. 5-2
CN-3056 ....................................................................... 5-54
EX-1076 ........................................................................ 5-55
KY-631 ......................................................................... 5-56
LED-471 ....................................................................... 5-58
RE-255 ..........................................................................5-59
MEM-122 ..................................................................... 5-60
MEM-126 ..................................................................... 5-67
VIF-40 ........................................................................... 5-74
Frame Wiring ................................................................ 5-82
6. Board Layouts
BE-28 .............................................................................. 6-2
CN-3056 ......................................................................... 6-8
EX-1076 .......................................................................... 6-8
KY-631 ........................................................................... 6-8
LED-471 ......................................................................... 6-8
RE-255 ............................................................................ 6-9
MEM-122 ..................................................................... 6-10
MEM-126 ..................................................................... 6-12
VIF-40 ........................................................................... 6-14

3 (E)
BCU-100 MM
Purpose of this manual
This manual is the maintenance manual of Computing Unit BCU-100 and the
optional products.
This manual describes the informations (parts list, block diagrams, schematic
diagrams, board layouts, etc..) that premises the parts level service.
Related manuals
Besides this Maintenance Manual, the following manuals are prepared for the BCU-
100 and the optional products.
..
..
.Operation Manual (Supplied with BCU-100)
This manual describes the application and operation of BCU-100.
..
..
.Installation Manual (Supplied with BCU-100)
This manual describes the information on installing of BCU-100.
..
..
.Technical Manual (Available on request)
This manual describes the system software for the BCU-100.
For obtaining, contact your local Sony Sales Office/Service Center.
..
..
.“Semiconductor Pin Assignments” CD-ROM (Available on request)
This “Semiconductor Pin Assignments” CD-ROM allows you to search for
semiconductors used in Broadcast and Professional equipment.
The maintenance manual contains a complete list of semiconductors and their ID
Nos., and thus should be used together with the CD-ROM.
Part number: 9-968-546-06
Trademarks
Trademarks and registered trademarks used in this manual are follows.
.Ethernet is a registered trademark of Xerox Corporation.
.FlexIO is a registered trademark of Rambus Inc.
.RSX is a registered trademark of Sony Computer Entertainment Inc.
Manual Structure

BCU-100 MM 1-1 (E)
Section 1
Service Overview
1-1. Main Parts Location
1-2. Removal of Cabinet
Front panel
While pushing simultaneously the release button of right
and left side, remove the front panel in the direction of an
arrow as shown below.
Front panel
Release button
Ventilation
hole
Top plate
Remove the two screws (B3 x6) and remove the top plate
to the arrow.
Fan
Fans
LED-471 board
KY-631 board
RE-255 board
BE-28 board
EX-1076 board
CN-3056 board
MEM-122/MEM-126 board
(BKCU-EX1)
Power supply unit
Fans
HDD
VIF-40 board
(BKCU-VD1)
Top plate
B3 x6
B3 x6

1-2 (E) BCU-100 MM
Power supply unit More than 400 mm
1
2
Lock lever
Handle
Power cord
Extract stopper
A
Extract stopper
1-3. Replacing the Main Parts
1-3-1. Replacing the Power Supply Unit
n
Power supply unit is a periodic replacement part.
Replacing the power supply unit every four years is
recommended.
Replacing part: Power ASSY
Part number: A-1531-936-A
w
Be sure to unplug the power supply cord from the outlet
before starting the replacement work.
n
The replacement work should be performed from the rear
panel side of BCU-100.
A space of more than 400 mm (size of the power supply
unit) is required behind the rear panel.
Preparation
1. Move the extract stopper in the direction of the arrow
and unplug the power supply cord from the AC inlet.
2. Press portion A to remove the extract stopper from the
hole of the AC inlet.
Removal
1. While pressing the lock lever of the power supply unit
in the direction of arrow 1, pull out the power supply
unit by the handle in the direction of arrow 2.

BCU-100 MM 1-3 (E)
CN6111
PSW3 x6
CN6106
CN6538
1
2
3
PSW3 x6
PSW3 x6
Fan holder (1)
Wire holder
Duct
Wire holder
Wire holder
Fan 1
Fan 2
Fan 3
Figure 1
Installation
1. Insert a new power supply unit from the rear panel side
until the lock lever locks (until the locking sound is
heard).
1-3-2. Replacing the Fan
n
Fan is a periodic replacement part.
Replacing the fan every four years is recommended.
Replacing part: DC fan (40 square)
Part number: !1-787-737-11
w
Be sure to unplug the power supply cord from the outlet
before starting the replacement work.
1. For fans 11
11
1, 22
22
2, and 33
33
3
Removal
1. Remove the top panel. (Refer to Section 1-2.)
2. Remove the three screws (PSW3 x6), and remove fan
holder (1).
3. Remove the fan that you want to replace, and open the
wire holder to disconnect the harnesses of the fan from
the following connector.
Fan 1: Connector CN6111
Fan 2: Connector CN6106
Fan 3: Connector CN6538
Fan guides
Fan guide Harness position
Figure 2
Installation
1. Install a new fan by aligning it with the fan guides
(three positions) on the duct (black).
2. Install fan holder (1) with the three screws (PSW3 x
6).
3. Connect the harness of the fan.
m
.Install the fan so that the harness of the fan should
be positioned as shown in Figure 2.
.Route each harness as shown in Figure 1.
4. Install the top panel.
5. After replacing the fan, reset the Hours Meter of the
replaced fan and check the operation. (For resetting the
Hours Meter, refer to “FAN Replacement” in “1-9-4.
Diag Mode (Offline Defect Diagnosis Function)”, and
for checking the operation, refer to “Basic Check”.)

1-4 (E) BCU-100 MM
CN6105
CN6537
PSW3 x6
PSW3 x6
4
5
Fan holder (2)
Figure 1
Duct
Wire holders
Wire holder
Fan 4
Fan 5
2. For fans 44
44
4and 55
55
5
Removal
1. Remove the top panel. (Refer to Section 1-2.)
2. Remove the two screws (PSW3 x6), and remove fan
holder (2).
3. Remove the fan that you want to replace, and open the
wire holder to disconnect the harnesses of the fan from
the following connector.
Fan 4: Connector CN6105
Fan 5: Connector CN6537
Figure 2
Fan guides
Harness position
Installation
1. Install a new fan by aligning it with the fan guides
(three positions) on the duct (black).
2. Install fan holder (2) with the two screws (PSW3 x6).
3. Connect the harness of the fan.
m
.Install the fan so that the harness of the fan should
be positioned as shown in Figure 2.
.Route each harness as shown in Figure 1.
4. Install the top panel.
5. After replacing the fan, reset the Hours Meter of the
replaced fan and check the operation. (For resetting the
Hours Meter, refer to “FAN Replacement” in “1-9-4.
Diag Mode (Offline Defect Diagnosis Function)”, and
for checking the operation, refer to “Basic Check”.)

BCU-100 MM 1-5 (E)
K3 x5
K3 x5
K3 x5
PS3 x35
PS-743 board
Front lid
Chassis (upper)
assembly
CN501
Figure 1
Harness position
Installation
1. Install a new fan by reversing the removal steps 1
through 5.
m
.Route the harness as shown in Figure 1.
.Install the fan so that the harness of the fan should be
positioned as shown in Figure 1.
1-3-4. Replacing the Lithium Battery
w
.The lithium battery is the critical component to maintain
the safe operation.
Replace the component with the Sony part of which part
number appears in the manual developed by Sony.
Replacing the component with any part other than the
specified ones may cause fire or electric shock.
.Be sure to unplug the power supply cord from the outlet
before starting the replacement work.
c
When replacing the lithium battery, ensure that the battery
is installed with “+” and “_” poles connected to the
correct terminals.
Improper connection may cause explosion or leakage
resulting in physical injury or in damaging the surrounding
materials.
The lithium battery for the real time clock is used for the
BE-28 board.
When a battery voltage drop is detected, the message LED
on the front panel blinks in blue to warn the voltage drop.
n
When the battery runs out, the clock data cannot be
retained correctly.
Replacing part: Lithium battery (CR2032)
Part number: !1-528-174-11
1-3-3. Replacing the Fan for the Power
Supply Unit
Replacing part: Power Fan ASSY
Part number: !A-1528-326-A
w
Be sure to unplug the power supply cord from the outlet
before starting the replacement work.
Removal
1. Remove the power supply unit.
(Refer to Section 1-3-1.)
2. Remove the seven screws (K3 x5), and remove the
chassis (upper) assembly.
3. Remove the screw (K3 x5), and remove the front lid.
4. Remove the harness of the fan from connector CN501
on the PS-743 board.
5. Remove the screw (PS3 x35), and remove the fan.

1-6 (E) BCU-100 MM
1
2
Lock lever
HDD case assembly
Handle
HDD
HDD case assembly
B6-32 UNC
B6-32 UNC
B6-32 UNC
B6-32 UNC
1-3-5. Replacing the HDD
Replacing part: HDD ASSY
Part number: A-1544-877-A
w
Be sure to unplug the power supply cord from the outlet
before starting the replacement work.
Removal
1. Remove the front panel. (Refer to Section 1-2.)
2. While pressing the lock lever of the HDD case assem-
bly in the direction of arrow 1, pull out the HDD by
the handle in the direction of arrow 2.
3. Remove the four screws (B6-32 UNC), and remove
the HDD from the HDD case assembly.
Pull up the battery while pressing it.
BE-28 board
Installation/Removal
n
When replacing the battery, do not touch the battery
directly as this may corrode electrode.
1. Remove the top panel. (Refer to Section 1-2.)
2. Remove the lithium battery from the BE-28 board.
3. Install a new lithium battery.
4. Install the top panel.
5. After replacing the battery, set the date and time. (For
details, refer to “Battery Replacement” in “1-9-4. Diag
Mode (Offline Defect Diagnosis Function)”.)

BCU-100 MM 1-7 (E)
Installation
1. Install a new HDD by reversing the removal steps 1
through 3.
n
Insert the HDD case assembly until the lock lever
locks (until the locking sound is heard).
2. After replacing the HDD, check the HDD operation.
(For checking the operation, refer to “HDD Replace-
ment” in “1-9-4. Diag Mode (Offline Defect Diagnosis
Function)”.)
1-4. Notes on Replacing the IC/Board
1. The following ICs contain program data. When the IC
with the program data is replaced, the program data
must be installed again.
For installing the program data again, refer to “1-5.
Updating the Firmware”.
Board Name Ref. No. Data type
RE-28 IC6004 Configuration data for system
(BCU-100) control FPGA
IC6005 System control firmware
IC4602 Proof firmware
MEM-122/ IC900 Configuration data for FPGA
MEM-126
(BKCU-EX1)
VIF-40 board IC701 Configuration data for FPGA
(BKCU-VD1)
2. When replacing the BE-28 board, the following
operations are required.
(1) Save the data of the current board.
(2) Write the saved data to the replaced board, and
check the operation. (For steps (1) and (2), refer to
“BE-28 Board Replacement” in “1-9-4. Diag
Mode (Offline Defect Diagnosis Function)”.)
(3) Update the firmware of the BE-28 board.
(Refer to “1-5. Updating the Firmware”)
3. When replacing the MEM-122/MEM-126 board, the
following operations are required.
.Update the configuration data for FPGA of the
MEM-122/MEM-126 board.
(Refer to “1-5. Updating the Firmware”)
4. When replacing the VIF-40 board, the following
operations are required.
.Update the configuration data for FPGA of the VIF-
40 board.
(Refer to “1-5. Updating the Firmware”)

1-8 (E) BCU-100 MM
1-5. Updating the Firmware
This section describes how to upgrade the firmware of the BE-28 board, MEM-122/MEM-126 board and
VIF-40 board. The USB memory is required in which the following program data that are required for
upgrade are contained.
.Configuration data for system control FPGA
.System control firmware
.Proof firmware
.Configuration data for FPGA of the MEM-122/MEM-126 board
.Configuration data for FPGA of the VIF-40 board
1. Execution environment
The firmware can be upgraded in the following environment.
2. Equipment and software
PC for terminal Windows PC (Windows 2000 or later)
Terminal software TeraTermPro or equivalent
USB memory Type recommended by BCU-100. The USB memory should contain the firm-
ware upgrade data.
Connection cable When the PC side is RS-232C: An RS-232C – RS-232C cable is required.
(D-Sub 9-pin cross cable)
When the PC side is USB: A USB – RS-232C conversion cable and
an RS-232C – RS-232C cross cable are required.
3. Settings
.If the BCU-100 that is going to be upgraded is in operation, shut down the BCU-100.
n
The shut-down procedure is different depending on the OS and application in use. Contact administra-
tor for shut-down procedure who is responsible for operating the system.
.Remove the front panel of the BCU-100 unit and connect the RS-232C connector on the front and the
RS-232C connector of the PC with a serial cross cable.
.If the PC has no RS-232C connector, use the USB – RS-232C conversion cable to connect to the USB
connector.
.Start the PC and run the terminal software (TeraTermPro or equivalent).
Communication setting: 38400 bps, data 8 bit, stop 1 bit, no parity bit
.Insert the USB memory that contains the firmware upgrade data into the MAINTENANCE connector
of the front.
Front RS-232C connector
RS-232C – RS-232C cable or
USB – RS-232C conversion cable + RS-232C – RS-232C cross cable
RS-232C or USB
connector
BCU-100
Terminal PC
(Windows)
<When the front panel is removed>

BCU-100 MM 1-9 (E)
12345678
OFF
ON
( indicates the knob position.)
.Set the front DIP switch as follows.
1, 2, 4, 5, 6 and 8: OFF
3 and 7: ON
n
After firmware upgrade, take note of the settings of the original DIP switch position before making
changes because the DIP switches must be returned to the original position upon completion of firmware
upgrade.
4. Firmware upgrade procedure
(1) Press the POWER button on the front to run the BCU-100.
The Linux startup message is displayed in the TeraTermPro window.
(2) Wait until the login prompt message is displayed, then log on with user: root, password: sjx-300.
(3) Execute the following command to mount the USB memory.
mount -t vfat /dev/sda1 /mnt [ENTER]
(4) Execute the following command to move to the directory where the USB memory is mounted.
cd /mnt [ENTER]
(5) Execute the following command to upgrade the firmware.
sh bcu100-x.xx-update.sh update [ENTER]
n
Input the upgrade version name in the place of x.xx of the above command name.
(6) The module to be upgraded is displayed as an example shown below..
Current Version Update Version
[Package] : 1.00 →1.10
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
[PROOF] : 1.00 Build 836 →1.10 Build 981
[SYSCON FIRM] : 1.00.06 →1.00.08
[SYSCON FPGA] : 1.68 →1.70
[MEM FPGA] : 1.00B0065
[VIF-40 FPGA] : 1.05
Proceed to update? [y/n]
n
.Version number is displayed for each module.
.In the case of version downgrade, the asterisk (*) mark is displayed on the version name that is
displayed on the Update Version side.
.If the newest version has already been installed, the Update Version is not displayed.
.[MEM FPGA] and [VIF-40 FPGA] are not displayed if the BKCU-EX1 and BKCU-VD1 are not
installed respectively.
(7) If you really want to upgrade, enter “y”.
A series of version upgrade will be executed.
It takes 5 to 6 minutes to upgrade all modules.
(8) Wait until the message “Update Complete” is displayed.

1-10 (E) BCU-100 MM
5. Rebooting and version confirmation
(1) Execute the following command to reboot the BCU-100.
reboot [ENTER]
(2) Wait until the login prompt message is displayed, then log on with user: root, password: sjx-300.
(3) Execute the following command to mount the USB memory.
mount -t vfat /dev/sda1 /mnt [ENTER]
(4) Execute the following command to move to the directory where the USB memory is mounted.
cd /mnt [ENTER]
(5) Execute the following command to confirm that the firmware is upgraded.
sh bcu100-x.xx-update.sh list [ENTER]
n
Input the upgrade version name in the place of x.xx of the above command name.
(6) Confirm that the following message is displayed.
Current Version Update Version
[Package] : 1.10
– – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – –
[PROOF] : 1.10 Build 981
[SYSCON FIRM] : 1.00.08
[SYSCON FPGA] : 1.70
[MEM FPGA] : 1.00B0065
[VIF-40 FPGA] : 1.05
n
.Confirm that the version number that is shown as the Current Version of the [Package] is exactly the
same version number of the executed firmware upgrade data.
.Confirm that nothing is displayed in the Update Version column of each module.
.[MEM FPGA] and [VIF-40 FPGA] are not displayed if the BKCU-EX1 and BKCU-VD1 are not
installed respectively.
6. Exit procedure
(1) Execute the following command to exit the Maintenance mode.
poweroff [ENTER]
(2) Return the front DIP switches to the original position.
(3) Remove the USB memory.
(4) Disconnect the RS-232C serial cross cable
(5) Attach the front panel to the original position.
(6) Press the POWER button to run the BCU-100.

BCU-100 MM 1-11 (E)
1-7. Unleaded Solder
Boards requiring use of unleaded solder are printed with a
lead free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come
printed with the lead free mark due to their particular size.)
: LEAD FREE MARK
m
.Be sure to use the unleaded solder for the printed circuit
board printed with the lead free mark.
.The unleaded solder melts at a temperature about 40 dC
higher than the ordinary solder, therefore, it is recom-
mended to use the soldering iron having a temperature
regulator.
.The ordinary soldering iron can be used but the iron tip
has to be applied to the solder joint for a slightly longer
time. The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful.
1-6. Circuit-Protection Part
This unit is equipped with the positive characteristics
thermister (s) (power thermister) as the circuit protection
element. The positive characteristics thermister limits the
electric current flowing through the circuit as the internal
resistance increases when an excessive current flows or
when the ambient temperature increases.
If the positive characteristics thermister works, turn off the
main power of the unit and inspect the internal circuit of
this unit. After the cause of the trouble is re-moved, turn on
the main power back again. The unit works normally.
It takes about one minute to cool down the positive charac-
teristics thermister after the main power is turned off.
Board Ref. No. Address Part No.
BE-28 TH4101 B-1 (B side) !1-802-243-11
TH4201 B-3 (B side)
TH6001 A-6 (B side)
TH6002 A-6 (B side)
TH6003 A-6 (B side)
RE-255 THP1 A-2 (A side) !1-802-108-11
THP2 A-2 (A side)
VIF-40 PT101 E-1 (A side) !1-804-458-21
(BKCU-VD1)
Fuse/IC link
w
The fuse and IC link are critical parts to safe operation.
Replace this component with SONY parts whose part
numbers appear in this manual published by SONY.
If not, this may cause a fire or electric shock. Be sure to
use specified component in this manual.
This unit has the fuse and the IC link.
They will blow when abnormality occurs and an overcur-
rent flows in this equipment.
Be sure to replace with the specified parts as shown below
after removing the foreign substances that may cause the
shorts.
Board Ref. No. Address Part No./Name
BE-28 F7200 A-5 (A side) !1-576-700-21
F7700 F-2 (A side) Fuse-links 10A, 72V
F7701 F-1 (A side)
F7702 F-3 (A side)
F7703 F-3 (A side)
F7800 A-6 (A side)
F7801 A-6 (A side)
F7802 A-6 (A side)
F7804 A-5 (A side)
F7806 A-5 (A side)
F7807 A-6 (A side)
F7808 A-6 (A side)
F8001 A-5 (A side)
MEM-122 F10 A-4 (A side) !1-533-627-21
(BKCU-EX1) F400 C-3 (A side) Fuse (SMD) 5A, 125V
MEM-126 F10 A-4 (A side) !1-533-627-21
(BKCU-EX1) Fuse (SMD) 5A, 125V
VIF-40 PS1 C-2 (A side) !1-533-282-21
(BKCU-VD1) IC link 2A, 72V

1-12 (E) BCU-100 MM
1-8. Circuit Description
1-8-1. BCU-100
BCU-100 is composed of the following six types of boards
plus the hard disc drive, fan, and power supply unit.
Used boards
.BE-28 board : Main board (Major components such as
Cell/B.E., RSX, and SCC are mounted)
.KY-631 board : Board for operations and display
systems installed on the front panel. It
includes RS-232C connector and
MAINTENANCE connector as external
I/O .
.LED-471 board : Message LED board
.CN-3056 board : Connector board for releasing HDD
.EX-1076 board : PCI-Express extension board. Connects
to the memory extension adapter
(BKCU-EX1).
.RE-255 board : DC/DC board that generates +5 V and
+3.3 V from the +12 V output from the
power supply unit.
BE-28 board
1. Major chip
A core is constructed on the BE-28 board by mounting
four types of cutting-edge chips, connecting the chips to
each other with high-speed signal wires, and realizing high
performance data process abilities for BCU-100.
(1) Cell/B.E. : main processor
Main processor that realizes high-speed data process-
ing for BCU-100.
.XIO
Connecting to the XDR DRAM used as main
memory enables high-speed data transfer. The Cell/
B.E. chip has two systems of 4 byte ports and the
transfer clock for data is 400 MHz. Eight pieces of
data can be transferred with each clock (Octal Data
Rate:ODR), so each port provides speed of 12.8
GByte/sec (400 MHz x8 ODR x4 Byte).
.IOIF (FlexIO)
This is the interface for the graphic processor RSX
and peripheral controller SCC. With one byte as one
lane, it achieves transfer speeds of 5 GByte/sec at
full rate and 2.5 GByte/sec at half rate. The transfer
speeds are different to RSX and to SCC as shown
below:
.Cell/B.E. to RSX : 4 lane (20 GB/sec)
.RSX to Cell/B.E. : 3 lane (15 GB/sec)
.Cell/B.E. to SCC : 1 lane (5 GB/sec)
.SCC to Cell/B.E. : 1 lane (5 GB/sec)
.Clock
There are two types of clock signals input to the
Cell/B.E. chip. The chip internally operates at 8
times the 400 MHz clock of BE_PLL_REFCLK for
a speed of 3.2 GHz.
.Core reference clock :
BE_PLL_REFCLK (400 MHz)
.IO reference clock : BE_RC_REFCLK (500 MHz)
.Power system
.Core
V1P0_BE_VDDC : Main power supply for the core
main processor.
The main power for the Cell/B.E. is supplied from
here.
Controller : NCP5318(IC7100)
Switching device : IP2003A (IC7101, 7102, 7103)
.VCS
V1P2_BE_VCS : Sub power supply for the CELL
chip core.
Controller : SN105233DBTR (IC7400)
.Clock
V1P5_BE_TERMAL_VDDA : Power supply for
PLL and thermal sensor.
.XIO
V1P5_LREG_BE_YC_VDDA : Power supply for
interface for XDR memory.
.FlexIO
V1P5_LREG_BE_RC_VDDA : Power supply for
interface FlexIO for RSX and SCC.
(2) RSX : Graphic processor
Graphic processor that realizes high speed processing
for BCU-100 along with Cell/B.E. for the main
processor.
.Clock
.Core reference clock :
RSX_PLL_REFCLK (100 MHz)
.IO reference clock : RSX_RC_REFCLK (500 MHz)
.Power system
.Core
V1P2_RSX_VDDC : Main power supply for core
.GDDR
V1P8_RSX_FBVDD :
Power supply for graphic memory
.Clock
V1P8_RSX_PLL_VDD :
Power supply for clock system
.FlexIO
V1P5_LREG_RSX_RC_VDD :
Power supply for FlexIO