Yamaha RP-U200 Service Manual page 37

A B
SCHEMATIC DIAGRAM (OPERATION)
1
2
3
TO DSP
P-E40/J38
N-1
4
TO OPE (2)
SAME PAGE
J-2
5
6
7
8
UDZ3.6B 2SC2412K (Q, R, S) LC75710NE
48 33
49 32
C
E
B
64 17
1 16
C D E
-5.7
-5.7
-6.3
-17.9
-17.5
-17.5
IC301 : LC75710NE
FL Display Driver
DI
CL
AM32
G6 49 32
CE
G5 50 31 AM31
G4 51 30 AM30
G3 52 29 AM29
53 28 AM28 VDD
G2
AM27
G1 54 27
VSS
VFL 55 26 AM26
TEST 56 25 AM25
VFL
VSS 57 24 AM24
RES
58 23 AM23
OSCO
AM22
OSCI 59 22
TEST
VDD 60 21 AM21
RES 61 20 AM20
CE 62 19 AM19
CL 63 18 AM18
AM17
DI 64 17
OSC I
OSC
OSC O
F G
-1.0
~
-16.8
-20.4
-20.4
~
~
-20.4
-16.8
-16.8
FL DRIVER
-2.1
-6.7
-6.1
-6.2
-6.2
-3.6
CG
ROM
SHIFT
DC RAM AM1
REGISTER
CG AM2
ROM
ADDRESS ADDRESS
AD
AM35
REGISTER COUNTER RAM
AA1
BLINKCYCLE BLINK AA2
REGISTER GENERATOR
AA3
AA4/G16
DISPLAY DISPLAY
REGISTER CONTROL AA5/G15
AA6/G14
AA7/G13
DUTYCYCLE DUTY
REGISTER GENERATOR AA8/G12
G11
GRID GRID G10
REGISTER CONTROL
INSTRUCTION
CONTROL
DECODER
G2
TIMING
DIVIDER DECODER G1
GENERATOR
H I J
TO MAIN (1)
P-E41/J39
C-4
TO OPE (1)
SAME PAGE
B-5
* All voltage are measured with a 10MΩ/V DC electric volt meter.
* Components having special characteristics are marked Z and
must be replaced with parts having specifications equal to those
originally installed.
* Schematic diagram is subject to change without notice.
K
RP-U200
TO MAIN (1)
P-E41/J39
J-2
E-42/J-40