Pioneer DVR-5100H-S Service Manual page 105

Mi LC75342M (TUJB ASSY : IC2801)
¢ Electric Volume IC
® Block Diagram
@ Pin Function
i 1 |p| Serial data input for control Not connected
Chip enable pin
17
Data are written in the internal latch by a timing
vss Groundpin 8 |
of "H" > "L", and each analog switch works.
EST Pin for electronic volume test
Set to VSS electric potential.
Data transfer is enabled by "H" level.
LOUT Volume and equalizer output pin
RTRE
Input signal pin
m
b
i o Qo Zz
LBASS2 Capacitor and resistor connection pins for bus SELO Input selector output pin
Volume and equalizer input pin
np De)
7
rm
TRE Capacitor connection pin for treble bandpass 23 Capacitor connection pin for treble bandpass
filter filter
Vee ene cruel er InPUEPO RBASS1 Capacitor and resistor connection pins for bus
10 |LSELO Input selector output pin RBASS2 bandpass filter
1 |L4
Input signal pins
Poor eer 0.5XVDD voltage generation block
Not connected Clock input pin for control
1 ROUT Volume and equalizer output pin
105