Roland SOLJET Pro III XC-540 Service Notes page 40

HEAD BOARD_Circuit Diagram 3/6
CN9
1
2
3
4 TH1
53398-0490
103HT
VCC +41V
+ +
C96
C93
C89
CE0.1u
470u/63V
220u/10V
2
FF0_DAC_B[0..9]
FF0_DAC_B[0..9]
FF0_DAC_LAT2
/FF0_DAC_RESET
/F0_POWER_SAVE
FF0_DAC_A[0..9]
FF0_DAC_A[0..9]
IC9
LLAT2 2
LLAT2 D1
CCH2 3
CCH2 D2
NNCHG2 4
NNCHG2 D3
5
D4
LLAT4 6
LLAT4 D5
CCH4 7
CCH4 D6
NNCHG4 8
NNCHG4 D7
9
D8
1
E1
19
E2
TC74VHCT541AFT
VCC3
IC10
SSI2_B 1
SSI2_B 1A
SSI2_A 7
SSI2_A 2A
SSCK2 9
SSCK2 3A
15
4A
4
G
12
G
HD151031FPEL
CN11
1
2
TO Cooling FAN
5267-02A
SSI1_B
CN12
SSI1_A
1
2
NON
SSCK1
PSFAN_ON
C95 CN13
CE0.1u
1
2
3
4
5
6
7
8
9
B9P-VH
IC11
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
LAT DP
6 12
RST DP
13
DP
23 15
PSAVE DP
17
TP37
DP
19
DP
8 21
DAOUT DP
7
GND3
10
GND45
14
VOUTGND
E09A54RA
IC12
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
LAT DP
6 12
RST DP
13
DP
23 15
PSAVE DP
17
TP38
DP
19
DP
8 21
DAOUT DP
7
GND3
10
GND45
14
VOUTGND
E09A54RA
R67 100
18
Q1
17
Q2
R65 100
16
Q3
15
Q4 100
R63
14
Q5
13
Q6 R61 100
12
Q7
11
Q8
R59 100
R54 100
C38 C35 C33 C32 C29
VCC
CE100p CE100p CE100p
PC3 CE100p CE100p
CE0.1u
TP53
R228 10
2
1Y
3
1Z
TP54 TP49
R227 10
6
2Y
5
TP52
2Z R226 10
10
3Y
11
TP51 TP47
3Z
R225 10
14
TP40
4Y
R211 10
13
4Z
TP39 TP46
R212 10
TP41
R209 10
VCC3
TP42 TP44
R210 10
PC12
CE0.1u
VCC3
IC6
SSI1_B 1 2
1A 1Y
3
1Z
SSI1_A 7 6
2A 2Y
5
2Z
SSCK1 9 10
3A 3Y
11
3Z
15 14
4A 4Y
13
4Z
4
G
12
G
HD151031FPEL
VCC3
PC9
CE0.1u
+41V
R154
1K/0.5W
TR66
2SJ535
R152
2.2K/0.5W
TR65
2
HD_POWER
DTC114EK
TR17
2SC2873 C124
CE0.1u
R213 R49
TR21
2SC4131
1 510
R216
43
VCC3
R217 R56
43 4.7 /0.25W
PC13
R204 R50
CE0.1u TR22
2SA1746
10 510
C125
CE0.022u
TR18
2SA1213
TR19
2SC2873 C28
CE0.1u
R205 R51
TR23
2SC4131
1 510
R218
43
VCC3
R219 R57
43 4.7 /0.25W
PC14
R206 R52
CE0.1u TR24
2SA1746
10 510
C126
CE0.022u
TR20
2SA1213
R207 0
LAT2
R220 0
CH2
0
R208
NCHG2
R221 0
LAT4
R214 0
CH4
R222 0
NCHG4
C27
CE100p
TP50
SI2_YB
C37
CE220p
SI2_ZB
TP48
SI2_YA
C36
CE220p
SI2_ZA
TP45
SCK2_YB
C31
CE220p
SCK2_ZB
TP43
SCK2_YA
C30
CE220p
SCK2_ZA
2-18
TP35 TP31
R198 10
TP36 TP32
R199 10
TP33 TP29
10
R196
TP34 TP30
R197 10
TP19 TP26
R184 10
TP20 TP25
R183 10
TP22 TP24
R182 10
TP21 TP23
R181 10
VHV0
F1
01543.15DR
VHV1
F2
01543.15DR
VHV2
F3
01543.15DR
VHV3
F4
01543.15DR(NON)
VHV1
+ C26
NON
COM2_B
LAT2
CH2
NCHG2
SCK2_YA
SCK2_ZA
SI2_YA
SI2_ZA
SCK2_YB
SCK2_ZB
SI2_YB
SI2_ZB
COM2_A
VCC
R185
1.0K
IC5A
R41 R191
2 1
ENC_PHA
100 33
74LVC14
C19
CE1000p
VCC
VCC3
PC2
CE0.1u R186
1.0K
IC5B
R40 R192
4 3
ENC_PHB
100 33
74LVC14
C18
CE1000p
IC5C
6 5
74LVC14
IC5D
8 9
74LVC14
IC5E
10 11
74LVC14
IC5F
12 13
74LVC14
SI1_YB
C21
CE220p
SI1_ZB
SI1_YA
C20
CE220p
SI1_ZA
SCK1_YB
C17
CE220p
SCK1_ZB
SCK1_YA
C16
CE220p
SCK1_ZA
VHV1
C25
CE0.1u
CN3
VHV1
36
VHV1
35
GND
34
GND
33
COM2_A
32
GND
31
COM2_A
30
GND
29
COM2_A
28
GND
27
COM2_B
26
GND
25
COM2_B
24
GND
23
COM2_B
22
GND
HEAD2
21
GND
20
ENC_PH_A
19
GND
18
ENC_PH_B
17
GND
16
LAT2
15
GND
14
CH2
13
GND
12
NCHG2
11
GND
10
GND
9
SCK2_YA
8
SCK2_ZA
7
SI2_YA
6
SI2_ZA
5
SCK2_YB
4
SCK2_ZB
3
SI2_YB
2
SI2_ZB
1
36FMN-BTK