Roland SOLJET Pro III XC-540 Service Notes page 39

HEAD BOARD_Circuit Diagram 2/6
FF0_DAC_B[0..9]
FF0_DAC_B[0..9]
FF0_DAC_LAT0
/FF0_DAC_RESET
/F0_POWER_SAVE
FF0_DAC_A[0..9]
FF0_DAC_A[0..9]
LLAT0
LLAT0
CCH0
CCH0
NNCHG0
NNCHG0
LLAT1
LLAT1
CCH1
CCH1
NNCHG1
NNCHG1
FF0_DAC_LAT1
/FF0_DAC_RESET
/F0_POWER_SAVE
D1
1SS355
VCC IC30 VCC3
2 4
VCC VOUT
1 5
CTL NC
+
C97
3
GND R151
CE0.33u
10K
BA33DD0WHFP
C94 C92
CE0.1u(NON) 220u/6.3V
EEEFK0J221P
IC3
FF0_DAC_B0 4 22
D0 VCC45
FF0_DAC_B1 3
D1
FF0_DAC_B2 2
D2
FF0_DAC_B3 1 20
D3 NPNB
FF0_DAC_B4 30 18
D4 FB
FF0_DAC_B5 29 16
D5 PNPB
FF0_DAC_B6 28
D6
FF0_DAC_B7 27 24
D7 VCC3
FF0_DAC_B8 26
D8
FF0_DAC_B9 25
D9
9
DP
5 11 VCC3
LAT DP
6 12
RST DP
13
DP
23 15
PSAVE DP
17
TP15
DP
19
DP
PC7
8 21
DAOUT DP
7 CE0.1u
GND3
10
GND45
14
VOUTGND
E09A54RA
IC4
FF0_DAC_A0 4 22
D0 VCC45
FF0_DAC_A1 3
D1
FF0_DAC_A2 2
D2
FF0_DAC_A3 1 20
D3 NPNB
FF0_DAC_A4
30 18
D4 FB
FF0_DAC_A5 29 16
D5 PNPB
FF0_DAC_A6 28
D6
FF0_DAC_A7 27 24
D7 VCC3
FF0_DAC_A8 26
D8
FF0_DAC_A9 25
D9
9
DP
5 11 VCC3
LAT DP
6 12
RST DP
13
DP
23 15
PSAVE DP
17
TP16
DP
19
DP
8 21 PC8
DAOUT DP
CE0.1u
7
GND3
10
GND45
14
VOUTGND
E09A54RA
SSI0_B
SSI0_B
SSI0_A
SSI0_A
SSCK0
SSCK0
IC1
R38 100
2 18
D1 Q1
3 17
D2 Q2
R36 100
4 16
D3 Q3
5 15
D4 Q4 R22 100
6 14
D5 Q5
7 13
D6 Q6
R20 100
8 12
D7 Q7
9 11
D8 Q8 R8 100
1
E1
R2 100
19
E2
TC74VHCT541AFT C13 C10 C9
VCC
CE100p CE100p
PC1 CE100p
CE0.1u
FF0_DAC_B[0..9]
FF0_DAC_B[0..9]
IC7
FF0_DAC_B0 4
D0
FF0_DAC_B1 3
D1
FF0_DAC_B2 2
D2
FF0_DAC_B3 1
D3
FF0_DAC_B4 30
D4
FF0_DAC_B5 29
D5
FF0_DAC_B6 28
D6
FF0_DAC_B7 27
D7
FF0_DAC_B8 26
D8
FF0_DAC_B9 25
D9
5
LAT
6
RST
23
PSAVE
TP27
8
DAOUT
VOUTGND
E09A54RA
FF0_DAC_A[0..9]
FF0_DAC_A[0..9]
IC8
FF0_DAC_A0 4
D0
FF0_DAC_A1 3
D1
FF0_DAC_A2 2
D2
FF0_DAC_A3 1
D3
30
FF0_DAC_A4
D4
FF0_DAC_A5 29
D5
FF0_DAC_A6 28
D6
FF0_DAC_A7 27
D7
FF0_DAC_A8 26
D8
FF0_DAC_A9 25
D9
5
LAT
6
RST
23
PSAVE
TP28
8
DAOUT
VOUTGND
E09A54RA
TR1 + C3
2SC2873 C106
CE0.1u
R167 R3
TR5
2SC4131
1 510
R168
43
R169 R17
43 4.7 /0.25W
R162 R4
TR6
2SA1746
10 510
C107
CE0.022u
TR2
2SA1213
TR3
2SC2873 C7
CE0.1u
R163 R5
TR7
2SC4131
1 510
R170
43
R171 R18
43 4.7 /0.25W
R164 R6
TR8
2SA1746
10 510
C108
CE0.022u
TR4
2SA1213
VCC3
IC2
TP17
1 2
1A 1Y
3
1Z
TP18
7 6
2A 2Y
5
TP14
2Z
9 10
3A 3Y
11
TP13
3Z
15 14
TP2
4A 4Y
13
4Z
4
G
12
TP1
G
HD151031FPEL
TP3
VCC3
PC6
TP4
CE0.1u
R156 0
LAT0
R172 0
CH0
R157 0
NCHG0
R173 0
LAT1
R165 0
CH1
R174 0
NCHG1
C8 C4 C2
CE100p
CE100p
CE100p
22
VCC45
20
NPNB
18
FB
16
PNPB R203 R48
24
1 510
VCC3
9
DP
11 VCC3
DP
12
DP
13
DP
15
DP
17
DP
19
DP
21 PC10
DP R202 R47
7 CE0.1u
GND3
10
10 510
GND45
14
22
VCC45
20
NPNB
18
FB
16
PNPB
R201 R45
24
VCC3 1 510
9
DP
11 VCC3
DP
12
DP
13
DP
15
DP
17
DP
19
DP
21 PC11
DP R44
R200
CE0.1u
7
GND3
10
GND45 10 510
14
2-17
VHV0
VCC
22u/50V
COM0_B
HEAD_TH
P_SIDE
LAT0
CH0
NCHG0
SCK0_YA
SCK0_ZA
SI0_YA
SI0_ZA
SCK0_YB
SCK0_ZB
SI0_YB
SI0_ZB
COM0_A
TP12
R180 10
C12
TP11
R179 10
CE220p
TP10
10
R178
C11
TP9
R177 10
CE220p
TP7
R160 10
C6
TP8
R161 10
CE220p
TP5
R158 10
C5
TP6
R159 10
CE220p
VHV0
TR16 + C23
2SC2873 C123 NON
CE0.1u
TR12
2SC4131
R190
43
COM1_B
R189 R46
43 4.7 /0.25W
TR11
2SA1746
/P_SIDE_SENS
C122
CE0.022u
HEAD_U/D_H
TR15
2SA1213
HEAD_U/D_L
LAT1
CH1
NCHG1
SCK1_ZA
SCK1_YA
SI1_ZA
TR14
SI1_YA
2SC2873 C22
SCK1_ZB
CE0.1u
SCK1_YB
SI1_ZB
TR10
SI1_YB
2SC4131
R188
43
COM1_A
R195 R43
43 4.7 /0.25W
TR9
2SA1746
C121
CE0.022u
TR13
2SA1213
VHV0
C1
CE0.1u
CN1
VHV0
36
VHV0
35
GND
34
GND
33
COM0_A
32
GND
31
COM0_A
30
GND
29
COM0_A
28
GND
27
COM0_B
26
GND
25
COM0_B
HEAD0
24
GND
23
COM0_B
22
GND GND
21
VCC
20
HEAD_TH
19
GND
18
P_SIDE
17
GND
16
LAT0
15
GND
14
CH0
13
GND
12
NCHG0
11
GND
10
GND
9
SCK0_YA
2
8
SCK0_ZA
7
SI0_YA
6
SI0_ZA
5
SCK0_YB
4
SCK0_ZB
3
SI0_YB
2
SI0_ZB
1
36FMN-BTK
SI0_YB
SI0_ZB
SI0_YA
SI0_ZA
SCK0_YB
SCK0_ZB
SCK0_YA
SCK0_ZA
VHV0
C14
CE0.1u
VCC
CN2
VHV0
36
VHV0
35
GND
34
COM1_A
33
GND
32
COM1_A
31
GND
30
COM1_A
29
GND
28
COM1_B
27
GND
26
COM1_B
25
GND
24
COM1_B
23
GND
22
VCC
21
/P_SIDE_SENS
HEAD1
20
GND
19
HEAD_U/D_H
18
GND
17
HEAD_U/D_L
16
GND
15
LAT1
14
GND
13
CH1
12
GND
11
NCHG1
10
GND
9
SCK1_ZA
8
SCK1_YA
7
SI1_ZA
6
SI1_YA
5
SCK1_ZB
4
SCK1_YB
3
SI1_ZB
2
SI1_YB
1
36FMN-BTK