Sony KDL-50R550A Service Manual page 16

A BOARD SCHEMATIC DIAGRAM (4 OF 26)
1 2
A
CN201 CN201
JWT_A2010WR0-14P-SW-5e-3.2 JWT_A2010WR0-14P-SW-5e-3.2
HEADER CONN_14P HEADER CONN_14P
1
2
3 PSU_12V
4 PSU_BL_PWM 1
AC_DET#
5 1
B
PSU_EN#
6 1
7
8
9
10
11
12
13 PSU_BL_ERR# 1
PSU_BL_EN#
14 1
1
1
1
C
D
HIGH LOW
AC_DET# AC ON AC OFF
E
PSU_EN# Turn on Turn off
R2201 R2201 Q2201 Q2201
100_J 100_J PMBT3906.215 PMBT3906.215
PSU_EN# SB_3.3V
1 2 3 2
R2202 R2202
1K_J 1K_J
F
R2204 R2204
2.2K_J 2.2K_J
C C
Q2203 Q2203
B B 1 1 2
PMBT3904.215 PMBT3904.215
G
E E R2208 R2208
56K_F 56K_F
Monday, January 07, 2013 Monday, January 07, 2013 Monday, January 07, 2013
Date : Date : Date : 10-20-2005 10-20-2005 10-20-2005 LY.REV : LY.REV : LY.REV : 00 00 00
H
PWB : PWB : PWB : 297005040100.BRD 297005040100.BRD 297005040100.BRD File Name : File Name : File Name : 297005040100.DSN 297005040100.DSN 297005040100.DSN
DESCRIPTION : DESCRIPTION : DESCRIPTION :
SCHEMATIC OF LCD TV MONITOR SCHEMATIC OF LCD TV MONITOR SCHEMATIC OF LCD TV MONITOR
1 2
Chassis RB1FK, BL
3 4
TP203 TP203
SB_3.3V [7,8,10,19,21,22,23]
C203 C203 C202 C202
TP201 TP201
0.1U_16V_K 0.1U_16V_K 10U_10V_M 10U_10V_M
TP204 TP204
TP202 TP202
PSU_12V [5,6]
TCON_12V [24]
AUD_12V [22]
TP207 TP207
1 1 1
TP206 TP206 TP208 TP208 TP205 TP205
TP209 TP209
TP210 TP210
TP211 TP211 C204 C204 C205 C205 C206 C206 C207 C207
TP212 TP212 0.1U_25V_K 0.1U_25V_K 0.1U_25V_K 0.1U_25V_K 0.1U_25V_K 0.1U_25V_K 0.1U_25V_K 0.1U_25V_K
Q2202 Q2202
PMBT3906.215 PMBT3906.215
3
R2205 R2205
4.7K_J 4.7K_J
Q2204 Q2204
D D
PMBT3904.215 PMBT3904.215
C C
1 2 1 B B
OPWRSB [19] [19] ORESET#
R2209 R2209 E E
5.6K_F 5.6K_F S S
R2207 R2207 C2201 C2201 R2210 R2210
100K_J 100K_J 0.01U_50V_K 0.01U_50V_K 10K_J 10K_J
Drawn : Drawn : Drawn : Checked Checked Checked
10-20-2005 10-20-2005 10-20-2005
3 4
5 6
BackLight DIMMER CONTROL.
BL_PWM
DIMMER
F=180Hz.
1% MINIMUM
100% MAXIMUM
BACKLIGHT ON/OFF CONTROL.
BL_EN#
PSU BACKLIGHT
Initial:L
H ON
L OFF
AC DETEDTION OUTPUT.
AC_DET# AC Voltage
H AC Existence.
L AC Off. (<=20mS)
[6,14,15,17,18,19,20,22]
BACKLIGHT ERROR OUTPUT.
BL_ERR# BACLKLIGHT
H ERROR
L NORMAL
SB_3.3V
2
R2203 R2203
4.7K_J 4.7K_J
H201 H201 H202 H202 H203 H203
R2206 R2206
10K_J 10K_J
PWM_5V_EN# [5]
Q2205 Q2205
2N7002.215 2N7002.215
R2212 R2212
0_J 0_J
1 1 2
MRESET# [19]
G G
H210 H210 H207 H207
C2202 C2202
NC_1U_10V_K NC_1U_10V_K
Approved Approved Approved PART NO. PART NO. PART NO.
2970050401-SC 2970050401-SC 2970050401-SC
10-20-2005 10-20-2005 10-20-2005
5 6
7 8
A
R202 R202
100_J 100_J
PSU_BL_PWM
1 2
BL_PWM [19]
C201 C201 R201 R201 B
NC/0.1U_10V_K NC/0.1U_10V_K 10K_J 10K_J
NC NC
R203 R203
100_J 100_J
PSU_BL_EN# 1 2
BL_EN# [21]
C
C208 C208 R204 R204
0.1U_16V_K 0.1U_16V_K 10K_J 10K_J
R205 R205 NC NC
NC/1K_J NC/1K_J
SB_3.3V
1 2
AC_DET#
AC_DET# [19]
D
C209 C209 VR201 VR201
0.1U_16V_K 0.1U_16V_K AVR-M1005C080MTACB_VR AVR-M1005C080MTACB_VR
R207 R207
10K_J 10K_J
1 2
SYS_3.3V
R208 R208
100_J 100_J
PSU_BL_ERR#
1 2
BL_ERR# [21]
E
C210 C210
0.1U_16V_K 0.1U_16V_K
SCROW HOLD.
hole_tc394bs709x394d158d158n hole_tc394bs709x394d158d158n
hole_tc394bsh709d158do158x181n hole_tc394bsh709d158do158x181n
hole_tbc394d158 hole_tbc394d158
hole_tbc354d158 hole_tbc354d158
F
hole_tbc354d158 hole_tbc354d158
hole_tbc354d158 hole_tbc354d158
H205 H205 H206 H206 H211 H211 H212 H212
hole_tbc354d158 hole_tbc354d158
hole_tbo89x208do39x158 hole_tbo89x208do39x158 HEATSINK HOLD.
hole_tbo89x208do39x158 hole_tbo89x208do39x158
hole_tbo89x208do39x158 hole_tbo89x208do39x158
hole_tbo89x208do39x158 hole_tbo89x208do39x158
G
H208 H208 H209 H209
REV. REV. REV. SHEET SHEET SHEET
H
<RevCode> <RevCode> <RevCode>
4 4 4 25 25 25
____ OF ____ ____ OF ____ ____ OF ____
7 8
Chassis RB1FK, BL
16