Sony KLV-21SG2 Service Manual page 44

1 3
2
A
B
R4200
0
JL4200 :CHIP
CLK54M
CLK_SEL
TO(1/3)
CLK48M
JL4201
R4201
C
0
:CHIP
JL4202
D
SDRAM-4
E
TO(2/3)
+3.3V
RB4200
47*4
:CHIP
P20
R21
R20
T21
F
RB4201
47*4
:CHIP
U22
R19
V22
T20
RB4202
G
47*4
:CHIP
F20
H21
J20
J21
K19
H20
RB4203
G22
47*4
:CHIP
L20
H
R22
P21
N19
P22
RB4204
47*4
:CHIP
I
SDRAM-7
TO(2/3) SDRAM-1
SDRAM-2
J
K
4 5 6
3.3V
L4200
22 H
+3.3V
IC4201
1
MS_SEL
CY27027ZCT
R4205
47
C4200
:CHIP
0.1
GND AUDCLK CLK12M
16V
1.6 R4204
R4206
F:CHIP
VDD MSSEL 0 47
JL4204
0 :CHIP :CHIP
XIN ASICCLK CLK66M_RE
1.5 1.5
CPUCLK CLK66M_RO
VIDCLK
1.5 1.5 R4207
JL4205
AUSEL VDD
47
C4210
0 :CHIP
0.1
USBCLK GND
16V
1.5
R4203
F:CHIP
GND SSSEL
0
0
:CHIP
CLK20M
VDD MSCLK
C4201
1.5
R4208
JL4206
0.1
47
16V
:CHIP
F:CHIP
R4202
0
:CHIP
VDD CONT
OUT
C4202
0.1
X4200
16V
54MHz
F:CHIP
3.3V
FB4200
TO(2/3)
IC4200
MT48LC8M16A2TG-75-Y95W
SDRAM
RB4205
47*4
:CHIP
VSS
VCC
8
7 Y21
DQ15
DQ0
6 AA22
5
VSSQ
VCCQ
4
3 V20
DQ14
DQ1
2
1 U19
DQ13
DQ2
VCCQ
VSSQ
RB4206
47*4
DQ12
DQ3
:CHIP
8
7 W21
DQ11
DQ4
5 6
T19
VCCQ VSSQ
4 W22
3
DQ5 DQ10
1 2 U21
DQ9
DQ6
VCCQ
VSSQ
R4209 0 :CHIP
DQ7 DQ8
VCC VSS
RB4207
47*4
LDQM NC
:CHIP
7 8 E21
/WE UDQM
6 G19
5
/CAS CLK
4
3 K20
/RAS CKE
JL4203
1 2 L22
/CS NC
BA0 A11
8
7 L21
BA1 A9
5 6 M22
A10 A8
RB4208
M20
3 4 47*4
A0 A7
:CHIP
1 2 M19
A1 A6
7 8 N21
A2 A5
5 6
N20
A3 A4
4
3
VCC VSS
1 2
RB4209
47*4
:CHIP
C4204 C4206 C4208 C4211
0.1 0.1 0.1 0.1
16V 16V 16V 16V
F:CHIP F:CHIP F:CHIP F:CHIP
C4203 C4207 C4209
C4205
22 0.1 0.1 0.1
10V 16V 16V 16V
F:CHIP F:CHIP F:CHIP F:CHIP
7 8 9
R4213
R4221
0 0
R4222
R4214
0
0
TO(1/3)
R4215 R4223
XX XX
R4224
R4216
TO(2/3)
XX
XX
R4217 R4225
0 0
TO(1/3)
R4218 R4226
0 0
R4219
R4227
0 0
R4228
R4220
0 0
3.3V
FB4201
SDRAM-5
+3.3V
IC4202
MT48LC8M16A2TG-75-Y95W
SDRAM
RB4210
47*4
:CHIP
VSS
VCC
W20
DQ15
DQ0
AA21
VSSQ
VCCQ
Y20
DQ14
DQ1
AA20
DQ13
DQ2
VCCQ
VSSQ
RB4211
47*4
DQ12
DQ3
:CHIP
Y19
DQ11
DQ4
AB20
VCCQ VSSQ
AA19
DQ5 DQ10
Y18
DQ9
DQ6
VCCQ
VSSQ
DQ7 DQ8
RB4212
47*4
VCC VSS
:CHIP
D22
LDQM NC
H21
/WE UDQM
J20
/CAS CLK
J21
/RAS CKE
K19 JL4207
/CS NC
H20
BA0 A11
RB4213
G22
47*4
BA1 A9
:CHIP
L20
A10 A8
R22
A0 A7
P21
A1 A6
N19
A2 A5
P22
A3 A4
VCC VSS
RB4214
47*4
:CHIP
C4213 C4215 C4217
0.1 0.1
16V 16V
F:CHIP F:CHIP F:CHIP
C4212 C4214 C4216
22 0.1 0.1
10V 16V 16V
F:CHIP F:CHIP F:CHIP
10
11 12
TO(1/3,2/3)
FA
RB4215
47*4
:CHIP
-90PFTN-11904
8 7 AA16
6
5 AB17
B6
4 3 Y16
C7
2 1 AA17
A6
B7
RB4216
47*4
A7
:CHIP
7
8 Y17
C8
6 5
AA18
B8
4 3 AB19
D9
2 1 W17
A4
R4211
D6
XX
R4210 0 :CHIP
J4
TO(2/3)
RB4217
TO(1/3,2/3) Y10
47*4
:CHIP
JL4208
8 7 F19
R4212
XX
6
5 G19
JL4209
3
4 K20
B5
2 1 L22
C6
C9
8 7 L21
B9
6 5 M22
A10
RB4218
4 3 M20
47*4
D10
:CHIP
2 1 M19
C10
8 7 N21
B10
6
5 N20
A11
4 3
2 1
RB4219
47*4
:CHIP
SDRAM-6
TO(2/3)
SDRAM-3
C4219
0.1 0.1
16V 16V
F:CHIP
C4218
0.1
16V
F:CHIP
15
13 14
• MS(3/3) BOARD WAVEFORM
1
0.5 Vp-p (54MHz)
3.3V
FB4202
+3.3V
C4220
IC4203 22
10V
MBM29LV160BE
F:CHIP C4221
0.1
FLASH ROM 16V
F:CHIP
FD
D7
A15 A16 TO(1/3,2/3)
C4222
A14 BYTE
0.1
16V
A13 VSS2
F:CHIP
L4
A12 DQ15/A_1
N4
A11 DQ7
L3
A10 DQ14
N1
A9 DQ6
L2
A8 DQ13
P1
A19 DQ5
L1
N.C.1 DQ12
P3
WE DQ4
RESET VCC
M2
N.C.2 DQ11
P4
N.C.3 DQ3
M3
RY#/BY# DQ10
R2
A18 DQ2
N2
A17 DQ9
R3
A7 DQ1
N3
A6 DQ8
T1
DQ0
A5
DIR
A4 OE
A3 VSS1
A2 CE J2
C11
TO(2/3)
A1 A0
BUS CTL
TO(1/3,2/3)
MS(3/3)
(RAM,ROM)
B-SS11933<UC.>-MS.-P3
KLV-21SG2 (UC) 3-32