Fostex MR-16HD, Руководство по обслуживанию, Страница: 52 / 68

52
& Service Manual
• BUFFER, MAIN PCB (4/7)
0.1UF
C69
/CS[3]
DGND
74VHC245
U9
20 10
BDA[0-15]
D+3.3
STBY_BLIGHT
DGND
74VHC245
U8
20 10
D+3.3
DGND
DGND
DGND
/RST_LCD
0.1UF
C67
/BRD
74VHC245 U8
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
OE
D+3.3
/BRST_LCD
/BWR
DA[0-31]
74VHC541
U10
1
OE1
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
11
Y8
12
Y7
13
Y6
14
Y5
15
Y4
16
Y3
17
Y2
18
Y1
19
OE2
DGND
DGND
LCD_D[0-7] LEDA[0-7] LEDK[0-3]
U28
NON
1
CLR
2
1Q
3
1D
4
2D
5
2Q
6
3D
7
3Q
9
CLK
10
4Q
11
4D
12
5Q
13
5D
14
6D
15
6Q
U29
NON
1
CLR
2
1Q
3
1D
4
2D
5
2Q
6
3D
7
3Q
9
CLK
10
4Q
11
4D
12
5Q
13
5D
14
6D
15
6Q
/CS[7]
D+3.3
NON
U29
16
8
NON
C76
NON
C75
NON
U28
16
8
BINPUT_SEL[1]
INPUT_SEL[1] INPUT_SEL[0]
BINPUT_SEL[0]
/CS[3]
74VHC08 U7
10 9
8
74VHC08 U7
13 12
11
/CS[7] /CS[2]
BSTBY_BLIGHT
/CS[3]
/BCS[3]
F
A
DER_SEL0
F
A
DER_SEL1
BF
ADER_SEL0
BF
ADER_SEL1
0.1UF
C65
74VHC541
U10
20 10
0.1UF
C71
74VHC08
U7
14
7
74VHC541
U15
20 10
0.1UF
C72
0.1UF
C74
74VHC245
U16
20 10
/RD /WR
D+3.3
74VHC245 U16
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
OE
74VHC245 U9
1
DIR
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
11
B8
12
B7
13
B6
14
B5
15
B4
16
B3
17
B2
18
B1
19
OE
74VHC541
U15
1
OE1
2
A1
3
A2
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
11
Y8
12
Y7
13
Y6
14
Y5
15
Y4
16
Y3
17
Y2
18
Y1
19
OE2
/RESET
/BRESET
74VHC08 U7
2 1
3
74VHC08 U7
5 4
6
AD[3] AD[6]
BDA[7]
LCD_D[1]
AD[2] AD[0]
LCD_D[3] LCD_D[2] LCD_D[7]
BDA[2] BDA[6] BDA[5]
AD[4]
BDA[4]
AD[7] AD[1] AD[5]
LCD_D[0] LCD_D[4]
BDA[3]
BAD[0-6]
LCD_D[5] LCD_D[6]
LEDA[7] LEDA[6] LEDA[5] LEDA[4] LEDA[3] LEDA[2] LEDA[1] LEDA[0] LEDK[0] LEDK[1] LEDK[2] LEDK[3]
BDA[1] BDA[0]
BAD[2] BAD[3] BAD[0] BAD[4] BAD[6] BAD[1] BAD[5]
DA[0] DA[1] DA[2] DA[3] DA[4] DA[5] DA[6] DA[7] DA[8] DA[9] DA[10] DA[1
1]
DA[12] DA[13] DA[14] DA[15]
BDA[0] BDA[1] BDA[2] BDA[3]
BDA[15] BDA[14] BDA[13] BDA[12] BDA[1
1
]
BDA[10]
BDA[9] BDA[8] BDA[4] BDA[5] BDA[6] BDA[7]
BAD[0] BAD[3] BAD[2] BAD[1] BDA[4] BDA[2] BDA[5] BDA[3] BDA[1] BDA[7] BDA[6] BDA[0]
AD[0-7]
/BRD
/BRD
BUFFERED DA
T
A
001-B3 CPU1 001-B3 CPU1
008-C3
BUFFERED ADDRESS
006-F4 CONNECT
001-B3,006-C3 CPU
005-B3 FLASH MEMOR
Y
005-B2 FLASH MEMOR
Y
006-F3 CONNECT>> 006-F3 CONNECT>>
004-A4 BUFFER
004-A6 BUFFER
001-B3 CPU
001-B3 CPU1
001-A2 CPU1
006-F5 CONNECT 006-E4 CONNECT
002-B3 CPU2
(/CS LED) (/CS LCD)
(/CS LCD) (/CS LED)
006-F4 CONNECT
002-G5 CPU2>> 002-G5 CPU2>>
006-F4 CONNECT 006-F4 CONNECT 006-F4 CONNECT
001-B3 CPU1 001-B3 CPU1 001-B3 CPU1
(/CS USB)
001-B3 CPU1 001-B3 CPU1
USB
006-E4 CONNECT
006-B6 CONNECT