Information in this document is subject to change without notice.
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All other trademarks are trademarks or registered trademarks of
their respective owners. Other tr ademarks and trade names may be
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interest in trademarks and trade names other than its own.
Caution Markings for Lithium/Ion Battery - The following or similar
texts shall be provided on battery pack of equipment or in both the
operating and the service instructions.
CAUTION: Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended by
the manufacturer. Discard used batteries according to the
manufacturer’s instructions.
CAUTION: The battery pack used in this de vice may present a f ire
or chemical burn hazard if mistreated. Do not disassemble, heat
above 100°C (212°F) or incinerate.
Dispose of used battery promptly.
Keep away from children.
CAUTION: Changing the back up battery.
• Overcharging, short circuiting, reverse charging, multilation or
incineration of the cells must be avoided to prev ent one or more of
the following occurrences; release of toxic materials, release of
hydrogen and/or oxygen gas, rise in surface temperature.
• If a cell has leaked or vented, it should be replaced immediately
while avoiding to touch it without any protection.
Service and Inspection Precautions
1. Obey precautionary markings and instructions
Labels and stamps on the cabinet, chassis, and components identify areas
requiring special precautions. Be sure to observe these precautions, as well
as all precautions listed in the operating manual and other associated
documents.
2. Use designated parts only
The set’s components possess important safety characteristics, such as
noncombustibility and the ability to tolerate large voltages. Be sure that
replacement parts possess the same safety characteristics as the originals.
Also remember that the 0 mark, which appears in circuit diagrams and
parts lists, denotes components that have particularly important safety
functions; be extra sure to use only the designated components.
3. Always follow the original design when mounting
parts and routing wires
The original layout includes various safety features, such as inclusion of
insulating materials (tubes and tape) and the mounting of parts above the
printer board. In addition, internal wiring has been routed and clamped so
as to keep it away from hot or high-voltage parts. When mounting parts or
routing wires, therefore, be sure to duplicate the original layout.
4. Inspect after completing service
After servicing, inspect to make sure that all screws, components, and wiring
have been returned to their original condition. Also check the area around
the repair location to ensure that repair work has caused no damage, and
confirm safety.
5. When replacing chip components...
Never reuse components. Also remember that the negati ve side of tantalum
capacitors is easily damaged by heat.
6. When handling flexible print boards...
•The temperature of the soldering-iron tip should be about 270C.
•Do not apply the tip more than three times to the same pattern.
•Handle patterns with care; never apply force.
Caution: Remember that hard disk drives are easily damaged by
vibration. Always handle with care.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
This computer uses either one of the two types of CPU socket.
The CPU locking position and the lock-release position are different depending on the types of the CPU socket.
1. Socket type 1, 2
1. Removing the CPU
1
1 Insert a flat-blade screwdri ver into the
notch as shown in the illustration and
rotate it so that the protrusion comes
to the lock release position.
2 Pull the CPU gently upward to lift it
out of the CPU socket.
CPU
CPU socket
2
2. Installing the CPU
1 Align the triangle reference mark of
the CPU with that of the CPU socket
and insert all the pins of the CPU to
the corresponding holes of the CPU
socket.
2 Insert a flat-blade screwdri ver into the
notch as shown in the illustration and
rotate it so that the protrusion comes
to the lock position.
Reference
marks
CPU
Lock release position
(made by HIROSE)
2
1
Lock release position
CPU socket
Lock position
(made by HIROSE)
NOTE:
Rotate a flat-blade screwdriv er to the lock position securely . If not, the operation of the CPU may become unstable.
Lock position
Confidential
1-15
PCG-FX220/FX220K/FX240/FX240K/
PCG-FX250/FX250K/FX270/FX270K (UC)
2. Socket type 3
1. Removing the CPU
1
CPU
CPU socket
1 Insert a flat-blade screwdriver into the notch as shown in the illustration and rotate it so that the
protrusion comes to the “O” (lock release) position.
2 Pull the CPU gently upward to lift it out of the CPU socket.
2. Installing the CPU
CPU
2
1
L
O
Protrusion
Lock release position [O]
2
CPU socket
Lock position [L]
L
Protrusion
Reference
marks
1 Align the triangle reference mark of the CPU with that of the CPU socket and insert all the pins of the CPU to
the corresponding holes of the CPU socket.
2 Insert a flat-blade screwdriver into the notch as shown in the illustration and rotate it so that the protrusion
comes to the “L” (lock) position.
NOTE:
• Considerable force is required to rotate a flat-blade screwdriver.
• Rotate a flat-blade screwdriver to the “L” (lock) position securely. If not, the operation of the CPU may
1-5. Replacing Various Connectors on the MBX-49 Board
Replace the connectors of “5-5. Connector Section” as follows.
1. Removing the I/O Bracket
When removing the connectors of reference numbers 164, 165 and 167 (refer to page 5-13), remove the I/O brack et first.
+B 2X4 (X2) (Silver)
MBX-49 Board
I/O Bracket
Screw (HEX) (X6) (Silver)
2. Removing the Various Connectors
The connectors of reference numbers 164, 165 and 167 (Refer to page 5-13, 5-14) are connected by soldering, remove the
soldering first then remove the connectors.
1-17
Confidential
PCG-FX220/FX220K/FX240/FX240K/
PCG-FX250/FX250K/FX270/FX270K (UC)
1-6. DIP Switch Setting of the MBX-49 Board
Set the DIP switch on the MBX-49 board (main board) to match with the LCD that is used in this computer, because
several types of LCD are used as shown in the following table and the DIP switch setting differs depending
on the LCD type.
MODEL
FX270/FX270K
FX220/FX220K
FX250/FX250K
Name of LCD
HI
HI
Part No.
1-476-300-11
1-476-186-12
DIP switch setting
N
O
1234567
The upper position where ON indication is
shown is the ON position . The lower
position is the OFF position.
No.
ON/OFF
12345678
00000111
N
O
1234567
The upper position where ON indication is
shown is the ON position . The lower
position is the OFF position.
8
0 : ON1: OFF
8
FX240/FX240K
HI
1-476-789-11
No.
ON/OFF
The upper position where ON indication is
shown is the ON position . The lower
position is the OFF position.
From board to connector (direct connection)
Harness (connector at both end)
Harness (soldered at one end)
Connectors soldered on board and appearing on the panel
FRAME HARNESS DIAGRAM
4-24-1
(END)
PCG-FX220/FX220K/FX240/FX240K/
PCG-FX250/FX250K/FX270/FX270K (UC)
Confidential
EXPLODED VIEWS AND PARTS LIST
NOTE:
• The mechanical parts with no reference number in the
exploded views are not supplied.
• Items marked “ * ” are not stoc ked since they are seldom
required for routine service. Some delay should be
anticipated when ordering these items.
• When two or more parts are shown in parallel, use the
part described first as the main part.
How to use properly the repair parts.
There are some parts that use the 2 types ; the [CH] parts or alternately the [JP] parts, in this series.
Use the [CH] repair parts for the [CH] type product, vice versa.
[ How to identify the parts ]
2DIMM Door
CHAPTER 5.
The components identified by mark 0 or
dotted line with mark 0 are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
1M2X4
Special Head (Black)
Identfication Seal
Serial No.
A-xxx-xxx-A x xxxxxxxxx
1 or 2 : Using [JP] type
6 : Using [CH] type
[ Repair part description example ]
Ref.No.Part No.Description
999A-8025-235-A(CH)...MBX-49 (CH) ASSY (S)
9994-8025-236-A(JP)...MBX-49 (JP) ASSY (S)
5-15-2
Identification seal is attached on the
expansion memory connector.
5-2. LCD Section (FX270/FX270K Model) – Made by HI –
226
224
B22
B30
234
235
203
Ref.No.Part No.Description
2011-476-316-11INVERTER UNIT
202X-4623-380-1HINGE LEFT 15
203X-4623-690-1ASSY HOU,BEZEL 15H-Z (EXP)
2064-637-902-41LATCH
2071-476-300-11ASSY LCD 15SXGA (HI) (S)
2084-637-903-01SPRING LATCH
212X-4623-689-1ASSY HOU,DISPLAY 15H-Z (EXP)
2134-642-762-41COVER HINGE (15)
2144-655-380-11(FX270)...LABEL ID (U)
2144-655-380-51(FX270K)...LABEL ID (U)
Ref.No.Part No.Description
B84-641-726-11SCREW (M2), SPECIAL HEAD
B224-641-726-81SCREW (M2), SPECIAL HEAD
B234-644-165-01SCREW (M2.6X4), 0 PLATE P1 MAIN
B304-643-550-01+P 2.6X6 LOCK PRECISION TYPE3
4011-476-316-11INVERTER UNIT
402X-4623-380-1HINGE LEFT 15
403X-4623-690-1ASSY HOU,BEZEL 15H-Z (EXP)
4064-637-902-41LATCH
4071-476-186-12ASSY LCD 15HI (S)
Ref.No.Part No.Description
B84-641-726-11SCREW (M2), SPECIAL HEAD
B224-641-726-81SCREW (M2), SPECIAL HEAD
B234-644-165-01SCREW (M2.6X4), 0 PLATE P1 MAIN
B304-643-550-01+P 2.6X6 LOCK PRECISION TYPE3
This manual and the constituent data may not be
replicated, copied nor reprinted in whole or in part
without prior written authorization of Sony Corporation.