Samsung SC-D351, Руководство по обслуживанию

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Circuit Operating Description
13-12 Samsung Electronics
13-4-9 CAMERA LENS ASS’Y H/W Demand matter
CAMEAR LENS ASS’Y is a function which makes an image for the light (Data) emitted with a photographic
subject to a focal side (CCD). It carries out.
LENS It consists of 4part(s), such as Zoom, Relay, and Focus.
Although Front and Relay LENS are being fixed, Zoom and Focus Part must carry out the use drive of
Zooming and the Auto Focusing harm Stepping Motor. It is automatic and light is made to adjust. Auto Iris is
used for a sake.
It is generated for the regularity of Ccd, and a photographic subject’s regularity.noise ingredient
It loses.In order to intercept White Balance and infrared rays, you have to adopt Optical Low Pass Filter.
13-4-8 DC/DC Block H/W Demand matter
DC/DC BLOCK receives BATTERY 7.4V or ADAPTER 8.4V, and is the use country according to BLOCK.The
function supplied stably is carried out.
BLOCK another use power supply CAM5V, CAM15V, CAM-7.5V, and DIG3V, DIG1.8V, SS3.0V, SS5.0V, and
SS1.8V LCD BL5V it carries V.LIGHT 5.0V
In response to DRUM ERROR and a CAPSTAN ERROR signal, you have to supply DRUM VS and CAPSTAN
VS to a SERVO circuit from MICOM BLOCK.
BATT.&
ADAPTER
TMP1962
(IC501)
MICOM
BD983 3KV
(IC701)
PWM-IC
LPF
DRUM VS
LPF CAPSTAN VS
LPF SS 3.0V
LPF SS 5.0V
LPF SS 1.8V
LPF LCD BL5V
LPF
CCD/LCD
-7.5V,-15V,+1 5V
LPF V.LOGHT5.0V
LPF
LPF
VTR DD ON
CAM DD ON
D.ERR
C.ERR
Fig. 13-9 DC/DC Block Diagram