Sony VPL-HW20 / VPL-HW20A Service Manual ▷ View online
1-17 (E)
VPL-HW20
1-4-2. Connection
n
Secure the XQA board to the main unit with the two screws.
Secure the XQA board to the main unit with the two screws.
Do not pull or stress the 50P flexible card
wire coming from the panel on the optics
unit assembly.
Doing so may displace the panel and
deteriorate image quality.
wire coming from the panel on the optics
unit assembly.
Doing so may displace the panel and
deteriorate image quality.
XQA board
GB board
CN301
CN301
XC board
x 3
D.C. fan (EX) block
Optical unit block
C board holder
A SH connector assembly (9P)
B SH connector assembly (10P)
C SH connector assembly (5P)
D SH connector assembly (15P)
E SH connector assembly (4P)
F SH connector assembly (8P)
G SH connector assembly (9P)
H SH connector assembly (3P)
I SH connector assembly (4P)
J-1 Z18 Flat connector assembly (50P) (R)
J-2 Z19 Flat connector assembly (50P) (G)
J-3 Z20 Flat connector assembly (50P) (B)
K SH connector assembly (6P)
B SH connector assembly (10P)
C SH connector assembly (5P)
D SH connector assembly (15P)
E SH connector assembly (4P)
F SH connector assembly (8P)
G SH connector assembly (9P)
H SH connector assembly (3P)
I SH connector assembly (4P)
J-1 Z18 Flat connector assembly (50P) (R)
J-2 Z19 Flat connector assembly (50P) (G)
J-3 Z20 Flat connector assembly (50P) (B)
K SH connector assembly (6P)
I
H
G
F
E
D
C
A B
J-2
J-3
J-1
XQA board
CN1605 C
CN1401 E
CN1801 A
CN1704 B
CN801
CN704
CN1602 D
CN1900 F
CN1703 G
CN1800 H
CN1705 I
CN705
CN800
CN703
CN900
CN401
CN605
CN602
Front Side
of Unit
of Unit
K
1-18 (E)
VPL-HW20
n
After the connecting with the C board, QA board, and XQA board, place the C board and QA board on the
insulator and then operate.
After the connecting with the C board, QA board, and XQA board, place the C board and QA board on the
insulator and then operate.
A SH connector assembly (9P)
B SH connector assembly (10P)
C SH connector assembly (5P)
D SH connector assembly (15P)
E SH connector assembly (4P)
F SH connector assembly (8P)
G SH connector assembly (9P)
H SH connector assembly (3P)
I SH connector assembly (4P)
J-1 Z18 Flat connector assembly (50P) (R)
J-2 Z19 Flat connector assembly (50P) (G)
J-3 Z20 Flat connector assembly (50P) (B)
K SH connector assembly (6P)
B SH connector assembly (10P)
C SH connector assembly (5P)
D SH connector assembly (15P)
E SH connector assembly (4P)
F SH connector assembly (8P)
G SH connector assembly (9P)
H SH connector assembly (3P)
I SH connector assembly (4P)
J-1 Z18 Flat connector assembly (50P) (R)
J-2 Z19 Flat connector assembly (50P) (G)
J-3 Z20 Flat connector assembly (50P) (B)
K SH connector assembly (6P)
XQA board
XC board
x 3
GB board
CN301
CN301
From CN900
on the QA board.
on the QA board.
CN1605 C
CN1401 E
CN1801 A
CN1704 B
CN801
CN600
CN101
CN100
CN500
Lamp power
connector assembly
connector assembly
Lead wire with connector (LVDS)
Fuse connector assembly
CN700
Fan connector
Two fan connectors
CN704
CN1602 D
CN1900 F
CN1703 G
CN1800 H
CN1705 I
CN705
CN800
CN703
CN800
CN703
CN900
CN401
CN605
CN602
QA board
CN801
CN704
CN705
CN800
CN703
CN900
CN401 CN605
CN602
I
F
H
G
A
B
K
J-2
J-1
J-3
C
D
E
F
HA board
CN11
CN11
QA board
C board
XQA board
E D C
B
A
I
H
H
G
Front Side
of Unit
of Unit
Front Side
of Unit
of Unit
1-19 (E)
VPL-HW20
1-5. Indicator
The error status of the this units are indicated by the type of fl ashing of indicator. The top cover has the
ON/STANDBY indicator and the LAMP/COVER indicator. Various error contents are indicated by the
type of fl ashing of indicator. For details of the types of indicator fl ashing and the error statuses, refer to
the list shown below.
ON/STANDBY indicator and the LAMP/COVER indicator. Various error contents are indicated by the
type of fl ashing of indicator. For details of the types of indicator fl ashing and the error statuses, refer to
the list shown below.
ON/STANDBY indicator (Blinks in Red)
Error Name
Flash Frequency
Cause
Temp Error
ON
OFF
OFF
2 times
The temperature inside of the unit is too
high.
high.
AC Error
ON
OFF
OFF
3 times
AC Voltage is not correct.
FAN Error
ON
OFF
OFF
4 times
Each fan does not work normally.
Power Error
ON
OFF
OFF
6 times
The power is not turned on correctly.
System Error 1
ON
OFF
OFF
10 times
The sub CPU can not obtain the data
from the EEPROM when the sub CPU
works.
from the EEPROM when the sub CPU
works.
System Error 2
ON
OFF
OFF
11 times
The SCAN CONV. can not obtain the
data from the EEPROM when the SCAN
CONV. works.
data from the EEPROM when the SCAN
CONV. works.
System Error 3
ON
OFF
OFF
12 times
The SCAN CONV. does not work
normally.
normally.
LAMP/COVER indicator (Blinks in Red)
Error Name
Flash Frequency
Cause
Cover Error
ON
OFF
OFF
2 times
The lamp cover or fi lter holder is opened.
Connector of the temperature sensor
board (TL board or V board) is discon-
nected.
board (TL board or V board) is discon-
nected.
Lamp Error
ON
OFF
OFF
3 times
The lamp has reached the end of life.
1-20 (E)
VPL-HW20
1-6. Circuit
Description
QA board
The overall input connectors, SCAN CONV. and sub CPU are mounted.
The built-in CPU of SCAN CONV. controls the whole system.
And the QA board also controls the iris and fan.
SCAN CONV. performs the signal-processing function such as HDMI receiving, Video decoding, A/D
conversion, pixel number conversion, sharpness, contrast, brightness, color, hue, user gamma, I/P conver-
sion, and NR.
The overall input connectors, SCAN CONV. and sub CPU are mounted.
The built-in CPU of SCAN CONV. controls the whole system.
And the QA board also controls the iris and fan.
SCAN CONV. performs the signal-processing function such as HDMI receiving, Video decoding, A/D
conversion, pixel number conversion, sharpness, contrast, brightness, color, hue, user gamma, I/P conver-
sion, and NR.
QB board
RS-232C connector is mounted.
RS-232C connector is mounted.
C board
The Gamma IC and panel driver circuit are mounted.
The signal processed in the QA board is converted to the proper signal for panel in this board.
The C board performs the conversion of the input signal to the voltage for driving the panel, white bal-
ance correction, UF correction, and generation the timing for driving the panel.
The Gamma IC and panel driver circuit are mounted.
The signal processed in the QA board is converted to the proper signal for panel in this board.
The C board performs the conversion of the input signal to the voltage for driving the panel, white bal-
ance correction, UF correction, and generation the timing for driving the panel.
GA board
This board functions as AC fi lter and power supply when the standby mode is set to “Low”.
This board functions as AC fi lter and power supply when the standby mode is set to “Low”.
GB board
Main power supply block
Main power supply block
V board
This board performs the measuring of outside air temperature and detecting whether the fi lter holder is
closed.
This board performs the measuring of outside air temperature and detecting whether the fi lter holder is
closed.
TL board
This board measures the lamp temperature.
This board measures the lamp temperature.
U board
This board detects whether the lamp cover for light source is closed.
This board detects whether the lamp cover for light source is closed.
BALLAST
Ballast provides the power supply for lamp.
Ballast provides the power supply for lamp.
NF board
Infrared receive block from remote control.
Infrared receive block from remote control.
HA board
The control panel is mounted.
The control panel is mounted.
HB board
The caution LED is mounted.
The caution LED is mounted.
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