Sharp LC-20SD4E Service Manual page 49

A B
8
R2439
FROM/TO ASIC
EMIA[23] EMIAM[23]
47
EMIA[23]
R2440
EMIA[22] EMIA[22] EMIAM[22]
EMIA[21]
47
EMIA[20]
NR2410
EMIA[19]
4D02WGJ0470TCE
EMIA[18]
EMIA[18] EMIAM[18]
EMIA[17]
EMIA[19] EMIAM[19]
EMIA[16]
7 EMIA[20] EMIAM[20]
EMIA[15]
EMIA[21] EMIAM[21]
EMIA[14]
EMIA[13]
NR2411
EMIA[12] 4D02WGJ0470TCE
EMIA[14] EMIAM[14]
EMIA[11]
EMIA[15] EMIAM[15]
EMIA[10]
EMIA[9] EMIA[16] EMIAM[16]
EMIA[17] EMIAM[17]
EMIA[8]
EMIA[7]
NR2412 SMIDM[0]
EMIA[6]
4D02WGJ0470TCE
EMIA[5]
EMIA[10] EMIAM[10]
EMIA[4]
EMIA[11] EMIAM[11]
EMIA[3]
EMIA[12] EMIAM[12]
EMIA[2]
EMIA[13] EMIAM[13]
EMID[15]
SMIDM[1]
EMID[14] NR2413
EMID[13] 4D02WGJ0470TCE
EMID[12] EMIA[6] EMIAM[6]
6 EMIA[7] EMIAM[7] SMIDM[2]
EMID[11]
EMIA[8] EMIAM[8]
EMID[10]
EMIA[9] EMIAM[9]
EMID[9]
EMID[8]
NR2414
EMID[7]
4D02WGJ0470TCE
EMID[6]
EMIA[2] EMIAM[2]
SMIDM[3]
EMID[5]
EMIA[3] EMIAM[3]
EMID[4]
EMIA[4] EMIAM[4]
EMID[3]
EMIA[5] EMIAM[5]
SMIDM[4]
EMID[2]
EMID[1]
NR2415
EMID[0]
4D02WGJ0470TCE
EMIBE0
EMID[12] EMIDM[12]
EMIBE1
EMID[13] EMIDM[13]
EMICLK
EMID[14] EMIDM[14]
SMIDM[5]
EMIOE
EMID[15] EMIDM[15]
EMICS5
EMICS0
NR2416
SMIDM[6]
5 EESCL 4D02WGJ0470TCE
EMID[8] EMIDM[8]
EESDA
EMID[9] EMIDM[9]
EMIRAS
EMICAS EMID[10] EMIDM[10]
EMID[11] EMIDM[11]
EMIRW
SMIA[13]
NR2417 SMIDM[7]
SMIA[12]
4D02WGJ0470TCE
SMIA[11]
EMID[4] EMIDM[4]
SMIA[10]
EMID[5] EMIDM[5]
SMIDQML
SMIA[9]
EMID[6] EMIDM[6]
SMIA[8]
NR2419
EMID[7] EMIDM[7]
SMIA[7] 4D02WGJ0103TCE
SMIA[6]
NR2418
SMIA[5]
4D02WGJ0470TCE
SMIA[4]
EMID[0] EMIDM[0]
SMIA[3] EMID[1] EMIDM[1]
SMIA[2] EMID[2] EMIDM[2]
SMIWE
SMIA[1] EMID[3] EMIDM[3]
R2442
SMICAS
SMIA[0]
4
SMID[15]
SMID[14]
R2468 R2443
EMIOE EMIOEM SMIRAS
SMID[13]
SMID[12]
47
SMID[11]
R2444
SMICS
SMID[10]
R2438
SMID[9] EMIRAS EMIRASM
SMID[8] R2441
EMICAS 47 EMICASM
SMIAM[12]
SMID[7]
SMID[6] 47
NR2402
SMID[5]
4D02WGJ0470TCE
SMIAM[13]
SMID[4] SMIA[10] SMIAM[10]
SMID[3] SMIA[11] SMIAM[11]
SMID[2]
SMIA[12] SMIAM[12]
SMIAM[10]
SMID[1] SMIA[13] SMIAM[13]
SMID[0]
SMIDQMU
NR2403
SMIAM[0]
SMICLK 4D02WGJ0470TCE
SMIA[6] SMIAM[6]
SMIDQML
3
SMIA[7] SMIAM[7]
SMIWE
SMIA[8] SMIAM[8] SMIAM[1]
SMICAS
SMIA[9] SMIAM[9]
SMIRAS
SMICS
NR2404 SMIAM[2]
4D02WGJ0470TCE
SMIA[2] SMIAM[2]
SMIA[3] SMIAM[3]
SMIAM[3]
SMIA[4] SMIAM[4]
FROM/TO P3V3EEPROM
SMIA[5] SMIAM[5]
COMMON INTERFACE
L2408
P3V3
NR2405
EMIDM[7] 4D02WGJ0470TCE
NLV25 2.2uH
EMIDM[6]
NC NC
EMIDM[5]
NC NC
SMIA[0] SMIAM[0]
EMIDM[4]
SMIA[1] SMIAM[1]
EMIDM[3]
EMIDM[2]
NR2406
EMIDM[1]
4D02WGJ0470TCE
2
EMIDM[0]
SMID[12] SMIDM[12]
EMIOEM
SMID[13] SMIDM[13]
EMIRASM
SMID[14] SMIDM[14]
EMICASM
SMID[15] SMIDM[15]
NR2407
4D02WGJ0470TCE
SMID[8] SMIDM[8]
SMID[9] SMIDM[9]
SMID[10] SMIDM[10]
SMID[11] SMIDM[11]
NR2408
4D02WGJ0470TCE
SMID[4] SMIDM[4]
SMID[5] SMIDM[5]
SMID[6] SMIDM[6]
SMID[7] SMIDM[7]
1
NR2409
4D02WGJ0470TCE
SMID[0] SMIDM[0]
SMID[1] SMIDM[1]
SMID[2] SMIDM[2]
SMID[3] SMIDM[3]
A B
H-31
C
FLASH/ SDRAM SCHEMATIC DIAGRAM
64M SDRAM
IC2406
EM638165TS-7G
3.3 0
VDD VSS
0.8 0.1
SMIDM[15]
DQ0 DQ15
3.3 0
VDDQ VSSQ
0.8 0.3
SMIDM[14]
DQ1 DQ14
0.6 0.2
SMIDM[13]
DQ2 DQ13
0 3.2
VSSQ VDDQ
0.6 0.8
SMIDM[12]
DQ3 DQ12
0.6 0.1
SMIDM[11]
DQ4 DQ11
3.3 0
VDDQ VSSQ
0.9 0.7
SMIDM[10]
DQ5 DQ10
1.6 0.9
SMIDM[9]
DQ6 DQ9
0 3.2
VSSQ VDDQ
0.3 0.7
SMIDM[8]
DQ7 DQ8
R2445
3.3 0
VDD VSS
47
0.1
0
LDQM NC NC
R2449
R2451
3.3
3.0 10K SMIDQMU
WE UDQM
R2446
R2450
47
R2452
2.5 1.6
47 10K SMICLK
CAS CLK
47 47
R2448
3.1 3.3
RAS CKE
R2447
47 10K
0.1
2.3
10K
CS NC NC
47
0.4 0.1
SMIAM[11]
BA0 A11
0.8 0.1
SMIAM[9]
BA1 A9
2.5 0.1
SMIAM[8]
A10/AP A8
0.1 0.1
SMIAM[7]
A0 A7
0.1 0.1
SMIAM[6]
A1 A6
0.4 0
SMIAM[5]
A2 A5
0.4 0.4
SMIAM[4]
A3 A4
3.3 0
VDD VSS
C
D E
(DIGITAL PCB)
128M SDRAM
IC2407
EM639165TS-7G
3.3 0
VDD VSS
1.3 0
EMIDM[0]
DQ0 DQ15
3.3 0
VDDQ VSSQ
0.7 0.5
EMIDM[1]
DQ1 DQ14
0.7 1.1
EMIDM[2]
DQ13
DQ2
0 3.3
VSSQ VDDQ
0.3 0.6
EMIDM[3]
DQ3 DQ12
0.5 0.5
EMIDM[4]
DQ4 DQ11
3.3 0
VDDQ VSSQ
0.8 0.3
EMIDM[5]
DQ5 DQ10
0.4 0.4
EMIDM[6]
DQ6 DQ9
0 3.3
VSSQ VDDQ
0.5 0.5
EMIDM[7]
DQ7 DQ8
R2454
3.3 0
EMIBE0
VDDQ VSS
NR2420
47
4D02WGJ0103TCE
0
3.3
LDQM NC NC
R2458
R2460
3.3 3.2
10K
WE
R2456 R2459
EMIRW
R2461
3.2 1.8
EMICASM 10K
47
CAS CLK
R2457
3.3 3.3
EMIRASM
RAS CKE
R2453
10K
R2455 3.2 2.4
EMICS0 10K
CS NC
47
0.4 1.3
EMIAM[17]
BA0 A11
0.1 2.6
EMIAM[18]
BA1 A9
3.0 0.8
EMIAM[12]
A10/AP A8
3.2 1.5
EMIAM[2]
A0 A7
3.0 0.5
EMIAM[3]
A1 A6
2.3 2.5
EMIAM[4]
A2 A5
0.8 0.8
EMIAM[5]
A3 A4
3.3 0
VDDQ VSS
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
D E
F G
16M FLASH
IC2408
M29W160ET70N6E
0 3.3
EMIAM[17]
A15 A16
3.3 3.3
EMIDM[15] EMIAM[16]
A14 BYTE
3.3 0
EMIAM[15]
A13
VSS
2.3 0.7
EMIDM[14] EMIAM[14]
A12 DQ15/A-1
0 0.1
EMIDM[13] EMIAM[13]
A11 DQ7
0 0.1
EMIAM[12]
A10 DQ14
3.3 0
EMIDM[12] EMIAM[11]
A9 DQ6
0 0
EMIDM[11] EMIAM[10]
A8 DQ13
0 0
EMIAM[21]
A19 DQ5
3.3 0.1
EMIDM[10] EMIAM[22]
NC DQ12
R2463
3.3 0
EMIDM[9] EMIRW
WE DQ4
47
3.3 3.3
RP VCC
0
EMIAM[23] 0
EMIDM[8]
NC DQ11
C2439
3.3 0
VPP/WP DQ3
0.1 B
0
0
NC DQ10
0.4 0.1
EMIBE1 EMIAM[20]
RY/BY DQ2
47
1.0 0.3
EMICLK EMIAM[19]
A17 DQ9
47
0 0.6
EMIAM[9]
A7 DQ1
1.6 0
EMIAM[14] EMIAM[8]
A6 DQ8
0 0
EMIAM[13] EMIAM[7]
A5 DQ0
3.3 3.3
EMIAM[11] EMIAM[6]
A4 OE
0.7 0
EMIAM[10] EMIAM[5]
A3 VSS
R2469
3.3 3.3
EMIAM[9] EMIAM[4]
A2 CE
0 0
EMIAM[8] EMIAM[3]
A1 A0
R2462
EMIAM[7]
10K
3.3 EEPROM
EMIAM[6] 3.3
IC2409 M24C64WMN6TP
3.3 0
0
SW
VDD A0
Q2404
KTA1504S_Y_RTK
0
0
WP A1
R2466
3.3 0
EESCL
SCL A2
47
R2467
3.3 0
EESDA
SDA
GND
47
NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
F G
H
8
FROM/TO POWER I/O
GND 7
L2409
P3V3
2.2uH
NLV25
EMIAM[18]
P3V3
EMIDM[15]
EMIDM[7] 6
EMIDM[14]
EMIDM[6]
EMIDM[13]
EMIDM[5]
EMIDM[12]
EMIDM[4]
5
EMIDM[11]
EMIDM[3]
EMIDM[10]
EMIDM[2]
EMIDM[9]
4
EMIDM[1]
EMIDM[8]
EMIDM[0]
EMIOEM
EMICS5
47 3
EMIAM[2]
P3V3EEPROM
2
PCBDH0
CEF196
1
H
H-32