Roberts ecologic 2 - Rear Panel Controls

+5V
R
R
L
R
FM
+3.3V
+5V
VCC
L
Q
MUTE
+5V
L
MUTE
+5V
L
Memory
DAB
+3.3V
+1.2V
+9V VCC
+9V
LCM LAMP Control
R
Battery +9V
CHARGER LOOP
SW2 - SW12 Key Map
ANT
LCD DATA
+3.3V
+3.3V
+9V
1N5817
D304
SW300
Q305
Charging
Voltage detect
EQ Pre-AMP
1N4002
D300
Q300,Q301 Q306,Q307
IC300 MC33340 IC301 LD1117AL
Q10,Q7,Q8
+3.3V
Detect Voltage
LCM LAMP
LCD1
+3.3V
AUDIO R OUT
Temperature detect
POWER SWITCH LOOP
IC1 TC4013BFN
IC3 LM4809 IC4 AD5165A
Regulator +9V
RDS
Q4,Q5,Q13
IC8 S-8550AA Q11,Q12 +1.2V
CON1 FS2025 DAB MODULE
AUDIO L OUT
Q1,D4 LED500 LED501
Q9,SW1
MUTE LOOP MUTE LOOP
8 ohm SPEAKER
Q2,Q3,Q14 Q15,Q6
Q2,Q3,Q14 Q15,Q17
HEADPHONE JACK
LCM
IC6 S-8520A33MC Q26,D7 +3.3V
CLASS-D AMP
HEADPHONE AMP
+12V ADAPTER
TMR300
LED1
JK301
IC2 NJM2100M
IC5 S-8520A50MC Q25,D6 +5V
BLOCK DIAGRAM
4