Ic Block Diagram （Ic ブロック図 - Yamaha p5000s Service Manual

I IC BLOCK DIAGRAM（ICブロック図）
• NJM2068MD-T1 (XJ553A00)
Dual Operational Amplifier
P5000S IN: IC301, IC302, IC303, IC304,
IC305, IC306, IC307
PAH: IC201
P7000S IN: IC301, IC302, IC303, IC304,
IC305, IC306, IC307
PAH: IC201
Output A 1 +V 8
Inverting
2 7
Input A
- +
Non-Inverting
3 6
+ -
Input A
-DC Voltage Supply 4 -V 5
IR2110 (X2382A00)
DRIVER
P5000S PS: IC402
P7000S PS: IC402
LO 1 14
COM 2 13 VSS
VCC 3 12 LIN
4 11 SD
VS 5 HIN
10
VB 6 9 VDD
HO 7 8
SG3525AN (X2383A00)
Regulating Pulse Width Modulator
P5000S PS: IC401
P7000S PS: IC401
INV. INPUTN 1 16 V
REF
N.I. INPUT 2 15 +V
IN
SYNC 3 14 OUTPUT B
OSC. OUTPUT 4 13 V
C
C 5 GROUND
12
T
R 6 11 OUTPUT A
T
DISCHARGE 7 10 SHUTDOWN
SOFT-START 8 9 COMPENSATION
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
V DD 9
Q
R
S
HIN
10
SD 11
LIN 12
S
Q
R
V
SS 13
REFERENCE
16
V
REF
REGULATOR
FLIP/
OSC. OUTPUT 4
FLOP
SYNC
3
R 6
T
DISCHARGE 7
C
5
T
COMPENSATION 9 PWM
1
INV. INPUTN
E/A
N.I. INPUT 2
UV
DETECT
HV
LEVEL
PULSE
SHIFT
FILTER
V /V
DD CC
LEVEL
SHIFT
PULSE PULSE
GEN GEN
V DD /V CC
LEVEL
SHIFT
15
+V
IN
13 V
C
A 11
OUTPUT A
B
14 OUTPUT B
12 GROUND
50µA
8
SOFT-START
5K
5K
SHUTDOWN
10
P5000S /P7000S
6
V B
R Q
R
7
HO
S
5
V S
3
V CC
UV
DETECT
1 LO
DELAY
2 COM
21