Circuit Diagram (Main Board Power) - Roland BOSS BR-1600CD Service Notes

Jan.2004

CIRCUIT DIAGRAM (MAIN BOARD POWER)

fig.mpowa
CPU power
supply(3.3V)
3.3V_CPU
IC78
UPC29M33T TP880
1 3
IN OUT
C526 C527
0.1
47/16
D
3.3V_CPU
D19
NIU(1SS387) R528
1 2 10K
5 1
CD OUT
2
VDD
4 3
NC VSS
C590 C591
0.1 IC83 0.1
S-80930CNMC
D D
JK17
2 FL1
D16
1 1 2 1 4
3
RB051L-40 2 3
HEC0470-01-640 C539
0.1 SH-202
3Amax
40
TP878
C524
470/16
D
CN18
B7B-PH-K-S
C692
470p
D18 NIU(1SS387)
2 1
L60 IC79
ELL6SH2R7M(2.7uH)
PQ1CY1032Z
1 2
IN OUT
TP898
5 4
VC VAD
2.4Amax
3.5A max
C528 R428
100/16 10k
TP884
1
1
C531
0.1
Q33
DTC114EUA
D
+9V_OS
IC80
TA7809F
1 3
IN OUT
C535 C536
C538 C534 0.1 0.1 C537
470/16 470/16
470/16
A
POWER ON/OFF
Q31A HD power
TPC8303
8
1 7 hard disk power
& LCD back
TP879
R426
light
C525
supply(12V)
0.1 100k
Q32
1
DTC114EUA
D
digital power
supply(5V)
3.3V_CPU
+ 5
D
CDR+V HDR+V
Q30
DTA114EUA
1
C693 C694
470p 220p
R425
10k
D
D
TP881
+
D 3. 3
L61 digital power
TSL1315S-221
supply(3.3V)
1.7Amax
R427 C529 C530
D14 3k(matal) 100/16 0.1
RB051L-40
TP899
1
R429
1.8k(metal)
3.3V_CPU
Q34
DTA114EUA
1
TP900 TP901
1 R430 1
analog power
1k
supply(+9V)
R431
10k
Q31B
D
TP904 TPC8303
1
3
R433
R527 10k 100k
C597
3.3/16
1
D
R437 1k
1
H:ON/L:OFF C543
R436 0.1
1k
D D
CPU power supply(3.3V):regulator
digital power supply(3.3V):DC-DC convertor
digital power supply(5V):DC-DC convertor
analog power supply(-9V):DC-DC convertor
analog power supply(+9V):regulator
hard disk power & LCD back light
supply(12V):AC adaptor direct
Q36
2SJ527
2 3
R438
3.3k
TP888
TP902 TP903
+9V 1 1 R439
0
5 IC81
6 8 1
CD CS
L64 R432
SBCP-87331 7
IPK
0.5(MCR25)
2
TP905
ES
or 1
1 TP892 1
6
VCC
5
VIN-
Q39 C540 C541
2SC4738GR 0.1 220/16 4 3
GND CT
NJM2374AM
A A
Q35
DTC114EUA
A
BR-1600CD
analog power
supply(-9V)
TP887
D15 L62
RB051L-40 SBCP-87331
2 1
-9V
L63 C532 C533
ELC10D-331 220/16 220/16
A A A
R434
A
TP906
1
TP907
1 8.2k(RR)
R435
51k(RR)
C542
270p
A
41