DOWNLOAD Sony DSC-F55 / DSC-F55E (serv.man2) Service Manual ↓ Size: 522.65 KB | Pages: 32 in PDF or view online for FREE

Model
DSC-F55 DSC-F55E (serv.man2)
Pages
32
Size
522.65 KB
Type
PDF
Document
Service Manual
Brand
Device
Digital Camera / OM
File
dsc-f55-dsc-f55e-sm2.pdf
Date

Sony DSC-F55 / DSC-F55E (serv.man2) Service Manual ▷ View online

21
Hybrid LCD
Fig. 4-3-2
LCD
Back light
Back light
Reflection plate
Projection System
Reflection System
Hybrid System
Images are displayed by the 
illumination of back light.
External incident light is 
used to display images.
Either external light or internal 
light is used to display images.
22
CAMERA DSP Block Diagram
Fig. 4-3-3
CCD
SG
OPD
CCDIF
CAM
HOSTIF
SDRAM IF
IMAGE
MEMORY
(SDRAM)
D/A
VIDEO
ENCODER/
OSD
RESOLUSION
CONVERTER
MEMORY
CONTROLLER
JPEGIF
JPEG
LMODE
CAMERA DSP
TG
CDS
A/D
HI
CPU
(CAMERA
MEDIA)
DRAM
ROM
MS I/F
(FDC)
IBUS
HOST BUS
Serial
VIDEO OUT
Y/Cb/Cr
(Y/C)
CPU BUS
23
4-4. DSC-F55/F55E Block Diagram
Fig. 4-4
[15v/7.5v]
[3v]
[3v]
øH, øV
CCD
ICX224AQ
EAGLE
Y/T
CCD1000
[3v/15v/–7.5v]
[3v/5v]
[3v/5v/6.5v]
[5v/13.5v/6.5v/– 15v]
[UNREG 2.5 to 4.2v]
[3v/2.5v]
[3v/5v]
[3v/5v]
D/A
MB88346
TG
CXD2470R
[3v]
[3v]
[3v]
[3v]
[3v]
[3v]
[5v]
[3v]
[3v]
[3v]
[5v]
[3v]
[3v]
SERIAL
I/O 2CH
[3v/5v]
[3v]
[3v]
SHUTTER/MOTOR
Driver
UPD16833AGS
BEAR
PreDriver
CXD2430N
IRIS
Driver
NJM2904V
HALL
AMP
BA10324
RESET
REG
SW
[Backup 3.1v]
TWI STER
HI
TIMMER
CLOCK
S-3513B
EEPROM
AK6480
8k bit
SYS RST
VD
HI RST
[UNREG 2.5 to 4.2v]
M SHT
FL RST
FLASHROM
MB29LV800BA
8Mbit
SDRAM
MB81F161622
B-80FN-B
16Mbit
PD RST
MC
CAM
SH-DSP
SH7612
EEPROM
AK6480BM-E2
8k bit
PEARL
MB91002
CS1
Y, C
Y, U, V
HD, VD
HD
RGB
IR3Y37A4
SDRAM
MB811641642A
64M bit
10bit
LCD
TG
LZ9GH184
LCD PANEL
SHARP 2"
VIDEO AMP
75
 Drv
NJM2538V
D/A
MB40D001
RS232C
MAX3221
BACK LIGHT
Memory
Stick
MELODY
MSM9831
MSC
MB86182
ANSI
CXD3147
AD/DA
AK4518
LINE/SP
AMP
AN2904FHQ
MIC
AMP
NJM2118V
STROBE
HOST IF
AUDIO IF
AD
STRB CNTL
SHUTTER
CNTL
VD
CCDFD
CS3
CS0
serial CH1
serial CH0
16.38 MHz
12.9 MHz
20 MHz
32 kHz
24.54 MHz
CCDHD,CCDFD
TG RST
12.27 M 
49 M
         
CS,RD,WE,etc.
CS4
MS RST
25.8 MHz
20 MHz
MEN CNTL
VIDEO ENC
OSD
DA
HOST IF
RES CNTL
L-MODE
JPEG
SG
CAM DSP
OPD
24
4-5. Playback Zoom and Trimming
SCRAM (IC252)
The picture data from MS is written into the SDRAM in the form of Y, CR,
CB digital data having 2,000,000 pixels after expanded by the CAMERA
DSP (IC251).  This size of picture data is too large to be displayed on LCD.
Therefore, the picture data is processed of its signal by the CAMERA DSP
so that it is reduced to the VGA size, then it is again written into the SDRAM.
The Y, CR, CB digital data is sent to the CAMERA DSP again, D/A con-
verted and displayed on LCD.
Playback Zoom
When a specific area is sampled from the digital data that is stored in the
SDRAM, by operating the +/– button and the control button, the digital
data of the selected area is processed of its signal by the CAMERA DSP so
that size of the selected area is adjusted for the VGA size, and is written
again into the SDRAM.  The Y, CR, CB digital data of the selected area is
D/A converted by the SDRAM and is sent to the LCD for display.
Trimming is the function of writing the above described data into MS after
is it is compressed by the CAMERA DSP and writing into the SDRAM
(IC455.)
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