Memory Circuit Diagram - LG DP391B Service Manual

2. MEMORY CIRCUIT DIAGRAM

SDRAM3.3V
R301 R301
10K 10K
R302 R302
0(NC) 0(NC)
RAMCKE RAMCKE
C301 C301
NC NC
SDRAM3.3V
U302 U302
HY57V641620ETP-7-C HY57V641620ETP-7-C
FCVCC33
RN305 RN305
10Kx4 10Kx4
MEMWR# R313 R313 300 300
MEMRD# R314 R314 300 300
CD R311 R311 33 33
R316 R316 33 33
GPIO43 R312 R312 33(NC) 33(NC)
FCVCC33
Card Detect
RN301 RN301
10Kx4 10Kx4
SD_CMD
WP
Serial Flash Block
FCVCC33
FCVCC33 U305 U305
AT26DF161A AT26DF161A
SF_CS 1 8
CE# Vcc
SFDI 2 7 R304 R304 4.7K 4.7K
SO HOLD#
4.7K 4.7K R305 R305
3 6 SFCLK
WP# SCK
4 5
GND SI
LGE Internal Use Only
<NAND FLASH>
P.ON(3.25V/3mA)
SDRAM3.3V
DVD_PLAY(3.25V/3mA)
L302 L302 FB0805 FB0805
1 2
3.3V
R306 R306
NC NC
C320 C320 C307 C307 C308 C308 C309 C309 C318 C318 C319 C319
C317 C317 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF
10uF/16V 10uF/16V
C302 C302
NC NC
SD_D0 R319 R319 NC NC SD_DAT0
CARD_DAT0 R320 R320 0 0
SM_WE#
Q301 Q301
SM_OE#
2N7002 2N7002
CD_INS
SD_D0 CARD_DAT0
3 2
N-CHANNEL N-CHANNEL
M5V
MS_INS MS_INS
R318 R318 4.7K 4.7K
CARD_CS2
R317 R317 75 75 NAND_BSY#
FCVCC33
RN302 RN302
10Kx4 10Kx4
RN306 RN306
75Rx4 75Rx4
SD_D0 SD_D1 8 1
SD_D2 SD_D3
7 2
SD_D1 SD_D2
6 3
SD_D3 SD_DAT0 5 4
C313 C313
33pF(NC) 33pF(NC)
FCVCC33
R307 R307
4.7K 4.7K
SFDO
Place de-coupling capacitors close to power pins.
FCVCC33
SDRAM3.3V
C312 C312 C316 C316 C303 C303 C304 C304 C305 C305 C310 C310
1000pF 1000pF 10uF/16V 10uF/16V 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 0.1uF 1000pF 1000pF
RN304 RN304
330Rx4 330Rx4
MEMDAT7 5 4 44
I/O7
MEMDAT6 6 3 43
I/O6
MEMDAT5
7 2 42
I/O5
MEMDAT4 8 1 41
I/O4
MEMDAT3 8 1 32
I/O3
MEMDAT2 7 2 31
I/O2
MEMDAT1 6 3 30
I/O1
MEMDAT0 5 4 29
I/O0
RN303 RN303
330Rx4 330Rx4
/M_RESET
19
WP
18
WE
17
ALE
SM_WE#
8 1 16
CLE
MEMADD0 7 2
MEMADD1 6 3
SM_OE# 5 4
36
VSS
13
RN308 RN308
VSS
330Rx4 330Rx4
FCVCC33
37
VCC
12
VCC
SD_CMD R321 R321 NC NC NAND_CE# 9
CE
8
RE
NAND_BSY# 7
R/B
R322 R322 0 0
U303 U303
HY27UF2G2A HY27UF2G2A
FCVCC33
J301 J301
R303 R303 R009-03X-XX R009-03X-XX
10K 10K SDDAT0 2
SD_DAT0
SDDAT1 1
SD_DAT1
SDDAT2 19
SD_DAT2
SDDAT3 17
SD_DAT3
SD_SCLK R315 R315 33 33
6
SD_CLK
SD_CMD
14
SD_CMD
WP 20
SD_WP_SW
CD_INS
21
SD_CD_SW
22
SD_WP/CD COM
23
SD_WP/CD COM
9
FCVCC33
SD_VCC
3
SD_GND
11
SD_GND
16
FCVCC33 MS_VCC
18
MS_GND
4
MS_GND
CARD_DAT0 8
MS_DATA0
7
FCVCC33 MS_DATA1
SDDAT1 10
MS_DATA2
SDDAT3
13
MS_DATA3
SDDAT2
SDDAT0 15
MS_SCLK
MS_INS 12
MS_INS
C314 C314 C306 C306 C315 C315 SD_CMD
5
MS_BS
33pF(NC) 33pF(NC) 33pF(NC) 33pF(NC) 33pF(NC) 33pF(NC)
3-55 3-56
OFF-PAGE CONNECTION
M5V
M5V 2,4,5
3.3V
3.3V 2,4,7
GND
GND 2,4,5,6,7
POWER I/F
L301 L301 FB0805 FB0805
1 2
3.3V
<SDRAM>
C311 C311 RAMADD0
P.ON(3.25V/10mA) RAMADD0 2
1000pF 1000pF RAMADD1
DVD_PLAY(3.25V/10mA) RAMADD1 2
RAMADD2
RAMADD2 2
RAMADD3
RAMADD3 2
RAMADD4
RAMADD4 2
RAMADD5
RAMADD5 2
RAMADD6
RAMADD6 2
RAMADD7
RAMADD7 2
RAMADD8
RAMADD8 2
RAMADD9
RAMADD9 2
RAMADD10
RAMADD10 2
RAMADD11
RAMADD11 2
RAMDAT0
RAMDAT0 2
RAMDAT1
RAMDAT1 2
RAMDAT2
RAMDAT2 2
RAMDAT3
RAMDAT3 2
RAMDAT4
RAMDAT4 2
RAMDAT5
RAMDAT5 2
RAMDAT6
RAMDAT6 2
RAMDAT7
RAMDAT7 2
RAMDAT8
RAMDAT8 2
RAMDAT9
RAMDAT9 2
RAMDAT10
RAMDAT10 2
48 RAMDAT11
NC RAMDAT11 2
47 RAMDAT12
NC RAMDAT12 2
46 RAMDAT13
NC RAMDAT13 2
RAMDAT14
45
NC RAMDAT14 2
40 RAMDAT15
NC
RAMDAT15 2
39
NC
38 RAMCS0-
RAMCS0- 2
NC
35 PCLK
PCLK 2
NC
34 RAMCAS
NC RAMCAS 2
33 RAMRAS-
NC RAMRAS- 2
28 RAMWE-
RAMWE- 2
NC
RAMCS1
27
NC RAMCS1 2
RAMBA
26
NC RAMBA 2
25 RAMDQM
NC RAMDQM 2
23 RAMCKE
NC RAMCKE 2
24
NC
22 DRAM I/F
NC
21
NC
20
NC
15
NC
14
NC
11
NC
10 SFDO
NC SFDO 2
SFCLK
6
SFCLK 2
NC
5 SF_CS
NC SF_CS 2
4 SFDI
SFDI 2
NC
3
NC
2
NC
1 Serial FLASH I/F
NC
MEMDAT0
MEMDAT0 2
MEMDAT1
MEMDAT1 2
MEMDAT2
MEMDAT2 2
MEMDAT3
MEMDAT3 2
MEMDAT4
MEMDAT4 2
MEMDAT5
MEMDAT5 2
MEMDAT6
MEMDAT6 2
MEMDAT7
MEMDAT7 2
MEMWR#
MEMWR# 2
MEMRD#
MEMRD# 2
MEMADD0
MEMADD0 2
MEMADD1
MEMADD1 2
NAND FLASH I/F
SD_SCLK
SD_SCLK 2
SD_CMD
SD_CMD 2
SD_D0
SD_D0 2
SD_D1
SD_D1 2
SD_D2
SD_D2 2
SD_D3
SD_D3 2
SD SD GPIO43
GPIO43 2
CD
CD 2
WP
WP 2
MS MS /M_RESET
/M_RESET 2,6,7
CARD_CS2
CARD_CS2 2
3IN1 CARD I/F
Copyright © 2008 LG Electronics. Inc. All right reserved.
03.MEMORY 03.MEMORY 03.MEMORY
Friday, February 15, 2008 Friday, February 15, 2008 Friday, February 15, 2008
Only for training and service purposes