Onkyo TX-L55

TX-LR552
IC BLOCK DIAGRAMS AND TERMINAL DESCRIPTIONS(LR552 only)
BLOCK DIAGRAM
VIN1+
NFB1
MUTE1
VIN2+
NFB2
-VCC1
VIN3+
NFB3
+VCC
VOUT1
GND
VOUT2
DR CTL
VOUT3
MUTE2
-VCC2
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
6dB
DR
6dB
DR
6dB
DR
LA7106MFP(75 ohm video driver)
MM1093NF(4fsc clock generator)
4fsc
VCO
DIVIDER
(1/4)
SYNC
SEP
BGP
GEN
APC2
1st
BPA
2nd
BPA
fsc
VCXO
ACC
DET
9
10
11
12
13
14
15
16
OSCILLATOR R
Vcc1
Vcc2
OSCILLATOR C
APC2 FILTER
4fsc OUTPUT
BURST GATE FILTER
COMPOSITE INPUT
8
7
6
5
4
3
2
1
NC
fsc OUTPUT
GND2
GND1
X'TAL
APC 1 FILTER
ACC FILTER
CROMA INPUT
APC1
MM1512(Y-C mixer circuit)
6
1
2
3
4
5
Bias
Clamp
-6dB
DRV
12dB
SAG
OUT
Vcc
YIN
GND
CIN