Main Pcb Circuit Diagram - Brother HL-5240 Service Manual

Appendix 1. Main PCB Circuit Diagram, HL-5240/5250DN/5270DN/5280DW (3/7)
1
2
ROM, Reset IC, Board id
A
FLASH
ROM1
(64/32Mbit)
@U14
1-3A 26 37
ROM1_CS_N CE VCC
1-3A/3A/4-1A
TP312 11
IO_WR_N WE
1-3A/3A/4-1A 28 27
IO_RD_N OE VSS27
15 46
RY/BY
VSS46
47
TP404
+3.3V BYTE
1-1A/5A/6E
12
RESET_N RESET
@R267 1k
13
TP405
NC
ADR[1] 25
A0
ADR[2]
24 14
A1 WR/ACC
ADR[3] 23
A2
ADR[4] 22
A3
ADR[5]
21 29
A4 DQ0
ADR[6] 20 31
A5 DQ1
ADR[7]
19 33
B A6 DQ2
ADR[8] 18 35
A7 DQ3
ADR[9] 8 38
A8 DQ4
ADR[10]
7 40
A9 DQ5
ADR[11] 6 42
A10 DQ6
ADR[12] 5 44
A11 DQ7
ADR[13] 4 30
A12 DQ8
ADR[14] 3 32
A13 DQ9
ADR[15]
2 34
A14 DQ10
ADR[16] 1 36
A15 DQ11
ADR[17] 48 39
A16 DQ12
ADR[18]
17 41
A17 DQ13
ADR[19] 16 43
A18 DQ14
ADR[20]
9 45
A19
DQ15/A-1
ADR[21] 10
A20
MBM29PL32BM90TN-K-E1
C
FLASH PIN
TOSHIBA
FUJITSU OKI
FUJITSU
DL P2ROM
LV type
type Mirror 32M 16M
64M
PIN 64M 64M
9 A21 A19 A19 A19 A19
13 ACC A21 NC NC A21
14 WP WP/ACC NC NC
WP/ACC
15 A19 RY/BY RY/BY RY/BY NC
47 Vccq Byte Byte Byte Byte
*NC pin Vss Vcc
ADR[24-1]
D
1-3B/4-1D
DATA[15-0]
1-1B/4-1E
+3.3V
10k
ADR[1] R93
10k R48
ADR[2]
10k R282 10k R88
ADR[3] ADR[3]
10k R300 10k R46
ADR[4] ADR[4]
10k R301 10k R87
ADR[5] ADR[5]
10k R299 10k R44
ADR[6] ADR[6]
10k R298 10k R86
ADR[7] ADR[7]
10k 10k
R297 R43
ADR[8] ADR[8]
10k 10k
R295 R39
ADR[9] ADR[9]
10k R294 10k R76
ADR[10] ADR[10]
10k 10k
R293 ADR[11] ADR[11] R38
E
10k 10k
R292 ADR[12] ADR[12] R75
10k R291 10k R37
ADR[13] ADR[13]
10k R290 10k R74
ADR[14] ADR[14]
10k R36
ADR[15]
10k R289 10k R35
ADR[16] ADR[16]
10k R276 10k R277
ADR[17] ADR[17]
10k R85
ADR[18]
10k
ADR[19] R42
10k 10k
R80 ADR[20] ADR[20] R79
10k R296 10k R40
ADR[21] ADR[21]
10k @R83 10k @R81
ADR[22] ADR[22]
10k @R306 10k @R305
ADR[23] ADR[23]
10k
F ADR[24] R304
TP413
SGND
1 2
3 4
+3.3V ROM0_CS_N
1-3A
TP321
IO_WR_N
@C253
1-3A/2A/4-1A
C104 TP380
IO_RD_N
1-3A/2A/4-1A
TP379
SGND
MASK ROM
(128/64Mbit)
+3.3V
@U16
+3.3V
24 37
CE VCC37 +3.3V
38
VCC38
27
DATA[0]
OE
25
DATA[1]
VSS25
@C254
1 26
DATA[2]
+3.3V BYTE VSS26 C104
DATA[3]
47
DATA[4]
VSS47
ADR[1] 23 48
DATA[5]
A0 VSS48 SGND
ADR[2] 22
DATA[6]
A1
21
ADR[3]
DATA[7]
A2
ADR[4] 20
DATA[8] A3
19
ADR[5]
DATA[9]
A4
ADR[6] 18
DATA[10]
A5
ADR[7] 17
DATA[11]
A6
16 28
ADR[8] DATA[0]
DATA[12]
A7 D0
ADR[9] 10 30 DATA[1]
DATA[13]
A8 D1
9 32
ADR[10] DATA[2]
DATA[14]
A9 D2
8 34
ADR[11] DATA[3]
DATA[15]
A10 D3
ADR[12] 7 39 DATA[4]
A11 D4
6 41
ADR[13] DATA[5]
A12 D5
ADR[14] 5 43 DATA[6]
A13 D6
ADR[15] 4 45 DATA[7]
A14 D7
3 29
ADR[16] DATA[8]
A15 D8
ADR[17] 2 31 DATA[9]
A16 D9
15 33
ADR[18] DATA[10]
A17 D10
ADR[19] 14 35 DATA[11]
A18 D11
OKI
ADR[20] 11 40 DATA[12]
P2ROM
A19 D12
13 42
32M ADR[21] DATA[13]
A20 D13
ADR[22] 12 44 DATA[14]
A19 A21 D14
36 46
ADR[23] DATA[15]
NC
A22 D15/A-1
NC
MR27V12850J-034TN
NC
Byte
3 4
5 6
MIRROR FLASH
ROM0
(128/64Mbit)
@U15
32 43
CE VCC +3.3V
13
WE
@C251
34 52
C104
OE VSS52
17 33
RY/BY VSS33 SGND
TP424 53
+3.3V BYTE
1-1A/2A/6E
14 29
RESET_N RESET VI/0(VCCQ) +3.3V
@R56 1k
TP455
31 27
ADR[1]
A0 NC27
ADR[2] 26 28
TP426
A1 NC28
ADR[3] 25 30
TP427
A2 NC30 SGND
24
ADR[4]
TP430
A3
ADR[5] 23 16
TP428
A4 WP/ACC +3.3V
22
ADR[6] TP431
A5
ADR[7] 21
TP429
A6
ADR[8] 20
TP425
A7
10
ADR[9]
TP408
A8
ADR[10] 9
TP402
A9
8 35
ADR[11] TP401 DATA[0]
A10 DQ0
7 37
ADR[12]
TP400 TP348 DATA[1]
A11 DQ1
ADR[13] 6 39
TP375 TP350 DATA[2]
A12 DQ2
5 41
ADR[14] DATA[3]
TP398 TP349
A13 DQ3
ADR[15] 4 44
TP418 TP307 DATA[4]
A14 DQ4
ADR[16] 3 46
TP417 TP305 DATA[5]
A15 DQ5
54 48
ADR[17]
TP416 TP344 DATA[6]
A16 DQ6
ADR[18] 19 50
TP414 TP345 DATA[7]
A17 DQ7
18 36
ADR[19] DATA[8]
TP423 TP346
A18 DQ8
ADR[20] 11 38
TP422 TP310 DATA[9]
A19 DQ9
ADR[21] 12 40
TP419 TP309 DATA[10]
A20 DQ10
15 42
ADR[22]
TP421 TP308 DATA[11]
A21 DQ11
ADR[23] 2 45
TP420 TP306 DATA[12]
A22 DQ12
1 47
TP415 TP304 DATA[13]
A23 DQ13
56 49
TP303 DATA[14]
A24 DQ14
55 51
TP302 DATA[15]
SGND A25 DQ15/A-1
TP342
MBM29PL64LM-10PCM
RESET IC
U4
2 4
+3.3V VDD OUT RESET_N
TP356 1-1A/2A/5A
3
TP301
CD
C55
C103
1
SGND VSS
C54
C103
S-80928CLNB
5 6
A-3
HL-5240/5250DN/5270DN/5280DW SERVICE MANUAL
7 8
A
B
C
D
E
F
CODE
NAME B512210CIR (3/7)
7 8
Confidential