Service Manuals, User Guides, Schematic Diagrams or docs for : Daewoo TV-DVD DSL19V1WCD daewoo_lh19sd83d_lh22sd83d_dsl19v1wcd_lcs_dvd_combo
<< Back | HomeMost service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.
Image preview - the first page of the document
>> Download daewoo_lh19sd83d_lh22sd83d_dsl19v1wcd_lcs_dvd_combo documenatation <<
Text preview - extract from the document
LH19/22S83D SERVICE MANUAL
INDEX:
PART 1Brief Introduction Of The LH19/22S83D
Schematic Diagram Block
Printed Circuit
PART 2: Exploded view
PART 3 Introduction
IC
PART 4: Detailed Circuit
PART 5: Components List
PART6: Debug Instruction
5 4 3 2 1
Part1:
D D
IR Board Key Board R L
INVERTER D
PANEL
BOARD
Loud Speaker
ebug Connector
CON6
TXD RXD GND 5V
CON4
CON22
5V IR GND V- RED GREEN GND V+ P+ P- MENU NC SOURCE POWER
LVDS Connector Key&IR Board Connector CON19
Loud Speaker Connector
C JP5 C
CON2
3.3V
EN
IR GND
JP2
NC GND SDA SCL
5V
GND
SW GND AGC GND SCL SDA GND IF GND
JP1
XP203
DVB-T Board
12V
CON37
CON39
9E19 TV Main Board
Schematic Diagram
Y GND C GND CVBS GND AL GND AR
CON15
B Y GND PB GND PR GND R L GND ON/OFF JP1 B
12V 12V EN BR GND GND
CON11
CON3
Inverter Connector
DVD Signal Connector
CON31
12V
GND
DVD Power Con nector
DVD Board DVD Keyboard
A Connecting Board A
5 4 3 2 1
Printed Circuit
TV Main Board (Top View)
Bottom view
TV Main Board
DVB Board (top view)
DVB Board(bottom view)
DVD Board (top view)
DVD Board(bottom view)
Part2: Exploded view
Part3:
IC Introduction
OCP2030 SWITCHING BUCK REGULATOR
General Description
The OCP2030 is a buck topology of switching regulator for wide operating voltage applications field. The OCP2030
includes a high current P-MOSFET, high precision reference (0.5V) for comparing output voltage with feedback
amplifier, an internal dead-time controller and oscillator for controlling the maximum duty cycle and PWM frequency,
and has power-on programmable soft start time and short circuit PMOS turn-off and auto re-start protection functions.
Features
Precision feedback reference voltage: 0.5V (2%)
Wide supply voltage operating range: 3.6 to 20V
Low current consumption: 3mA
Internal fixed oscillator frequency: Typ. 360KHz
Programmable Soft-Start function (SS)
Short Circuit Shutdown and Auto Re-start function(ARSCP)
Built-in P-MOSFET for 3A loading capability
Package: SOP8
Pin Configuration
Top View
Name No. Status Description
VCC 1 P IC Power Supply (PMOS Source)
1 8 Connecting with a Soft-start &
SS/SCP 2 I
ARSCP timing capacitor
2 7
IN- 3 I Error Amplifier Inverting Input
OCP2030 Error Amplifier Compensation
3 6 FB 4 O
Output
4 5 5
GND P IC Ground
6
7
LX O PMOS High Current Output
8
Block Diagram
1
Reference
Regulator Oscillator
Thermal
1.25V Shuntdown
3 36K Output drive
control circuits
500
0.5V
0.8V
4
Soft start&Auto Re-start
S.C.P Circuits
5 6 2 7 8
AP1084
5A Low Dropout Positive Adjustable or Fixed-Mode Regulator
Features General Description
◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo