OLYMPUS C-370 ZOOM DESCRIPTION OF MECHANISM
H. DESCRIPTION OF MECHANISM X-450/C-370/D-535
H. DESCRIPTION OF MECHANISM
[1] CIRCUIT OPERATION DESCRIPTION…………………….. H-2
1. SUBSTRATE COMPOSITION…………………………….H-2
2. POWER SUPPLY COMPOSITION……………………….H-3
[2] DESCRIPTION OF EACH SUBSTRATE.…………………... H-4
1. FLASH BOARD……………………………………………. H-4
2. POWER BLOCK…………………………………………... H-7
3. CCD BOARD………………………………………………. H-7
4. MCU BLOCK………………………………………………. H-11
H-1
H. DESCRIPTION OF MECHANISM X-450/C-370/D-535
[1] Circuit Operation Description
1. Substrate Composition
Parts number Name Description
9J737-001 MCU BOARD U2: DSP ZORAN COACH 6 (SYSTEM CONTROL,
IMAGE PROCESS, AMBIENT I/F & RTC)
U4: MOTOR DRIVE M50234FP (LENS DRIVE)
U5: INTERNAL 16MB FLASH MEMORY K9F2808
(DSP CORE & BUILD-IN IMAGE DATA)
U6: 6 CHANNEL POWER MANAGEMENT MAX156
7ETL
U7: 128Mb SDRAM IC42S16800-7T
J2: TO FLASH BOARD CONNECTOR
J3: TO LENS FPC CONNECTOR
J4: DC 3.4V JACK
J5: USB JACK
JP1: TO CCD BOARD CONNECTOR
JP2: TO TOP FPC CONNECTOR
J401: TO LCD PANEL CONNECTOR
JC1: TV JACK
JC2: XD CONNECTOR
9J737-501 CCD BOARD U1: 3.34M PIXEL CCD SENSOR MN39480PJG
U3: 25MSPS CORRELATED DOUBLE SAMPLER
AD9943
U5: VERTICAL DRIVE AN20101A
U6: TIMING GENERATOR MN52B6CH
9J737-401 FLASH BOARD U400: FLASH CAPACITOR CHARGER IC AT1452
U401: LCD DRIVE LC15004
J1: TO REAR FPC CONNECTOR
Q401: 400V 150A IGBT GT8G131
T401: TRANSFORMER TC83127T2
T400: TRIGGER COIL TS-50ML-1
9J737-302 CCD TO MCU FPC CONNECT CCD/B WITH MCU/B
9J737-303 TOP FPC POWER ON KEY/SHUTTER KEY
9J737-304 REAR FPC MODE DIAL/5-WAY KEY
ZOOM IN/ZOOM OUT/PLAYBACK/PRE
VIEW KEY
FLASH/MENU/ERASE KEY
H-2
H. DESCRIPTION OF MECHANISM X-450/C-370/D-535
2. Power Supply Composition
Power Supply Unit:
Power Supply Voltage Control Signal Use
VP BATTERY N/A PRIMARY POWER SUPPLY
VOLTAGE PANASONIC LR6*2
AC E-8AC (3.4V 2.5A)
+3.3VD +3.3V SDOK COACH 6 DSP I/O, SDRAM, NAND FLASH
, XD, FLASH BLOCK, CCD BLOCK
+3VAL +3V LCD_PW_EN LCD DRIVE
+3VTG +3V CCD_PW CCD, TG, VD, CDS
+3VCDS +3V CCD_PW CDS
+3.3VM +3.3V SPM MOTOR DRIVE
+3.3VZ +3.3V ZOOM_PI_EN LENS ZOOM FUNCTION
+3.3VF +3.3V FOCUS_PI_EN LENS FOCUS FUNCTION
+1.8VD +1.8V SPM COACH 6 CORE
+12VCCD +12V CCD_PW CCD VH
-8VCCD -8V CCD_PW CCD VL
+8.5VD +8.5V BACKLIGHT LCD BACKLIGHT
+8.5VL +8.5V LCD_PW_EN LCD PANEL
+5VD +5V LCD_PW_EN LCD DRIVE, IGBT
Control Signal Polarity:
Control Signal Power Status
SPM HIGH POWER ON
SDOK LOW POWER ON
LCD_PW_EN HIGH POWER ON
CCD_PW HIGH POWER ON
ZOOM_PI_EN HIGH POWER ON
FOCUS_PI_EN HIGH POWER ON
BACKLIGHT HIGH POWER ON
H-3
H. DESCRIPTION OF MECHANISM X-450/C-370/D-535
Power Supply Status For Primary Action Mode:
Control Signal Power
Supply
Camera
Off
Camera On
Preview Playback USB
Mode Mode
TFT On Video TFT On Video
Mode
VP ON ON ON ON ON ON
SPM +3.3V OFF ON ON ON ON ON
+3.3VM OFF ON ON ON ON ON
+1.8VD OFF ON ON ON ON ON
+15VD OFF ON ON ON ON ON
-10VD OFF ON ON ON ON ON
+8.5VD OFF ON ON ON ON ON
SDOK +3.3VD OFF ON ON ON ON ON
CCD_PW +3VTG OFF ON ON OFF OFF OFF
+3VCDS OFF ON ON OFF OFF OFF
+12VCCD OFF ON ON OFF OFF OFF
-8VCCD OFF ON ON OFF OFF OFF
LCD_PW_EN +3VAL OFF ON OFF ON OFF OFF
+8.5VL OFF ON OFF ON OFF OFF
+5VD OFF ON OFF ON OFF OFF
ZOOM_PI_EN +3.3VZ OFF ON ON OFF OFF OFF
FOCUS_PI_EN +3.3VF OFF ON ON OFF OFF OFF
BACKLIGHT +8.5VD OFF ON OFF ON OFF OFF
[2] Description of Each Substrate
1. Flash Board
IC U400 AT1452 Charge:
After switching on the flash mode, DSP will detect if the voltage “Strobe_V” is the standard
default value. If it is not, charge is HI level and start to charge. When charge achieves the
standard default value, the charge is LOW level and stop charging. Strobe_V will increase
with the increasing charge voltage during the charge process. Charge will stop till achieving
the F/W setting value. At this time, Strobe signal is available to activate. When Strobe
signal turn into HI level from LOW level, Q401 is conducting and flash is triggering. Please
refer to the figures 4.1.1 and 4.1.2 for above mention.
H-4
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