Circuit Boards; Ic Block Diagram - Yamaha BBG5S Service Manual

BBG5S
PART NO. DESCRIPTION
REF NO.
QC354700 Circuit Board Assembly
IC1 IG028400 IC
D1 IF000040 Diode
VR3,4 QC251700 Variable Resistor
: New Parts

CIRCUIT BOARDS

Component side

IC BLOCK DIAGRAM

NJM4558D-Y (IG028400)
Dual Operational Amplifier
Output A 1 +V 8
Inverting
2 7
Input A
- +
Non-Inverting
3 6
+ -
Input A
-DC Voltage Supply 4 -V 5
4
NJM4558D-Y
1S1555
B50K ohm CC
TREBLE







+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
BASS







Component side
to Battery
to Balance
REMARKS
QTY RANK
BB G5S
OP AMP
TREBLE,BASS
RANK : Japan only
to Volume
09
03
01
04