Roland SOLJET Pro III XC-540 Service Notes page 41

HEAD BOARD_Circuit Diagram 4/6
FF0_DAC_B[0..9]
FF0_DAC_B[0..9]
FF0_DAC_LAT3
/FF0_DAC_RESET
/F0_POWER_SAVE
FF0_DAC_A[0..9]
FF0_DAC_A[0..9]
VCC3
IC26
SSI3_B 1
SSI3_B 1A
SSI3_A 7
SSI3_A 2A
SSCK3 9
SSCK3 3A
15
4A
4
G
12
G
NON
FF1_DAC_B[0..9]
FF1_DAC_B[0..9]
FF1_DAC_LAT0
/FF1_DAC_RESET
/F1_POWER_SAVE
FF1_DAC_A[0..9]
FF1_DAC_A[0..9]
IC16
LLAT5 2 18
LLAT5 D1 Q1
CCH5 3 17
CCH5 D2 Q2
NNCHG5 4 16
NNCHG5 D3 Q3
5 15
D4 Q4
LLAT6 6 14
LLAT6 D5 Q5
CCH6 7 13
CCH6 D6 Q6
NNCHG6 8 12
NNCHG6 D7 Q7
9 11
D8 Q8
1
E1
19
E2
TC74VHCT541AFT
VCC
PC4
CE0.1u
IC13
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
TP55
DP
19
DP
8 21 PC16
DAOUT DP
NON
7
GND3
10
GND45
14
VOUTGND
NON
IC14
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
TP56
DP
19
DP
8 21 PC17
DAOUT DP
NON
7
GND3
10
GND45
14
VOUTGND
NON
TP133 TP128
R316 NON
2
1Y
3
1Z
TP134 TP127
R315 NON
6
2Y
5
TP130 TP126
2Z R314 NON
10
3Y
11
TP129 TP125
3Z
R313 NON
14
TP118 TP123
4Y R304 NON
13
4Z
TP117 TP124
R305 NON
TP119 TP121
R302 NON
VCC3
TP120 TP122
R303 NON
PC24
NON
IC18
FF1_DAC_B0 4 22
D0 VCC45
FF1_DAC_B1 3
D1
FF1_DAC_B2 2
D2
FF1_DAC_B3 1 20
D3 NPNB
FF1_DAC_B4 30 18
D4 FB
FF1_DAC_B5 29 16
D5 PNPB
FF1_DAC_B6 28
D6
FF1_DAC_B7 27 24
D7 VCC3
FF1_DAC_B8 26
D8
FF1_DAC_B9 25
D9
9
DP
5 11 VCC3
LAT DP
6 12
RST DP
13
DP
23 15
PSAVE DP
17
TP77
DP
19
DP
PC19
8 21
DAOUT DP
7 CE0.1u
GND3
10
GND45
14
VOUTGND
E09A54RA
IC19
FF1_DAC_A0 4 22
D0 VCC45
FF1_DAC_A1 3
D1
FF1_DAC_A2 2
D2
FF1_DAC_A3 1 20
D3 NPNB
FF1_DAC_A4 30 18
D4 FB
FF1_DAC_A5 29 16
D5 PNPB
FF1_DAC_A6 28
D6
FF1_DAC_A7 27 24
D7 VCC3
FF1_DAC_A8 26
D8
FF1_DAC_A9 25
D9
9
DP
5 11 VCC3
LAT DP
6 12
RST DP
13
DP
23 15
PSAVE DP
17
TP78
DP
19
DP
PC20
8 21
DAOUT DP
CE0.1u
7
GND3
10
GND45
14
VOUTGND
E09A54RA
R113 100 R252 0
R111 100 R264 0
100 0
R108 R253
R106 100 R265 0
R104 100 R262 0
R90 100 R266 0
C59 C56 C55 C54 C51 C50
CE100p
CE100p CE100p CE100p
CE100p CE100p
TR49 + C70
NON C156 NON
NON
R295 R125
TR53
NON
NON NON
R296
NON
R297 R130
NON NON
R292 R126
TR54
NON
NON NON
C157
NON
TR50
NON
TR51
NON C71
NON
R293 R127
TR55
NON
NON NON
R298
NON
R299 R131
NON NON
R294 R128
TR56
NON
NON NON
C158
NON
TR52
NON
SI3_YB
C81
NON
SI3_ZB
SI3_YA
C80
NON
SI3_ZA
SCK3_YB
C76
NON
SCK3_ZB
SCK3_YA
C75
NON
SCK3_ZA
TR32 + C44
2SC2873 C129 22u/50V
CE0.1u
R243 R74
TR28
2SC4131
1 510
R237
43
COM4_B
R236 R72
43 4.7 /0.25W
R242 R73
TR27
2SA1746
10 510
C128
CE0.022u
TR31
2SA1213
TR30
2SC2873 C43
CE0.1u
R241 R71
TR26
2SC4131
1 510
R235
43
COM4_A
R234 R69
43 4.7 /0.25W
R240 R70
TR25
2SA1746
10 510
C127
CE0.022u
TR29
2SA1213
LAT5
CH5
NCHG5
LAT6
CH6
NCHG6
VCC3
IC15
SSI4_B 1 2
SSI4_B 1A 1Y
3
1Z
SSI4_A 7 6
SSI4_A 2A 2Y
5
2Z
SSCK4 9 10
SSCK4 3A 3Y
11
3Z
15 14
4A 4Y
13
4Z
4
G
12
G
HD151031FPEL
VCC3
PC15
CE0.1u
2-19
VHV3
VHV3
VCC
VHV3
VHV3
GND
GND
COM3_A
GND
COM3_A
GND
COM3_A
GND
COM3_B COM3_B
GND
COM3_B
GND
COM3_B
GND
VCC
GND
GND
GND
GND
LAT3
LAT3
GND
CH3
CH3
GND
NCHG3
NCHG3
GND
GND
SCK3_YA
SCK3_YA
SCK3_ZA
SCK3_ZA
SI3_YA
SI3_YA
SI3_ZA
SI3_ZA
SCK3_YB
SCK3_YB
SCK3_ZB
SCK3_ZB
SI3_YB
SI3_YB
SI3_ZB
SI3_ZB
COM3_A
VHV1
VHV1
VCC
VHV1
VHV1
GND
COM4_A
GND
COM4_A
GND
COM4_A
GND
COM4_B
GND
COM4_B
GND
COM4_B
GND
GND
VCC
GND
GND
GND
GND
GND
LAT4
LAT4
GND
CH4
CH4
GND
NCHG4
NCHG4
GND
SCK4_ZA
SCK4_ZA
SCK4_YA
SCK4_YA
SI4_ZA
SI4_ZA
SI4_YA
SI4_YA
SCK4_ZB
SCK4_ZB
SCK4_YB
SCK4_YB
SI4_ZB
SI4_ZB
SI4_YB
SI4_YB
TP72 TP67
R246 10
C46
TP71 TP68
R247 10
CE220p
TP69 TP65
10
R244
C45
TP70 TP66
R245 10
CE220p
TP57 TP64
R232 10
C42
TP58 TP63
R231 10
CE220p
TP60 TP62
R230 10
C41
TP59 TP61
R229 10
CE220p
C69
NON
CN8
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
HEAD3
21
20 2
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
NON
C39
CE0.1u
CN5
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
HEAD4
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
36FMN-BTK
SI4_YB
SI4_ZB
SI4_YA
SI4_ZA
SCK4_YB
SCK4_ZB
SCK4_YA
SCK4_ZA