Block Diagrams - Sharp LC-39LE650E Service Manual

39"/ 50" POWER UNIT BLOCK DIAGRAM (RDENCA459WJQZ)
1 2
CIRCUIT BLOCK DIAGRAM
A. EMI FILTER AND RAW B+ CIRCUIT
A
AC
EMI MAIN
FUSE
FILTER RECTIFIER
INPUT
B
PFC
CONFIDENTIAL
OVP
F. STAND BY POWER STAGE
POWER
CLAMP
TRANSFORMER
NETWORK
C
PWM/SWITCH
DRIVER
CIRCUIT
D
1 2
3 4
B. MAIN POWER STAGE
POWER
TRANSFORMER
PFC
CONTTROL
CIRCUIT
FSP RDD3
PWM
DRIVER
CIRCUIT
J.FEED-BACK CIRCUIT
AUX. POWER
OPTO-ISOLATOR
3 4
5
C. SECONDARY OUTPUT
RECTIFER & CIRCUIT
E.FEED-BACK CIRCUIT
OPTO-ISOLATOR
OPTO-ISOLATOR
G. SECONDARY OUTPUT
RECTIFER CIRCUIT
H.FEED-BACK CIRCUIT
OPTO-ISOLATOR
5
63
6 7
FILTER
D.OUTPUT CONTROL
CONSTANT VOLTAGE
CIRCUIT
OVP DETECT
POWER
ON/OFF
D203
&
FILTER
I.OUTPUT CONTROL
CONSTANT VOLTAGE
CIRCUIT
R
全漢企業股份有限公司
FSP Technology Inc.
FSP GROUP
FSP139-4F01
TITLE:
PartNumber
P/N:
APPROVED: CHECKED:
LJ Chlu
Date: 2012/10/9 PCB File: BD-FSP139-4F01-BLOCK
File:
D:\LAYOUT\Summer 09\FSP139-4F01-R3(SHARP 39-50)\BD-FSP139-
表單編號 :7000P-0106
線路圖
6 7
LC-39/50LE650
LC-39/50LE651
LC-39/50LE652
8
12V
BUCK
D to D
18V
A
18V
24V
B
5Vs
5.75V
C
D
size: A3 rev: 0
DESIGNER:
Vivian
Sheet 1 of 1
4F01-BLOCK.SchDoc
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