Harman Kardon AVR7000 Service Manual page 133

AVR7000
Multimedia ICs
•
Pin descriptions and input / output circuits
Pin. No Pin name
1 MUTE
2 INA
4 INB
7 INC
3
5
GND
8
14 OUTA2
12 OUTB2
9 OUTC2
15 OUTA1
13 OUTB1
10 OUTC1
16 V
CC
Reference
IN OUT
voltage
K
— —
K
— —
— — 0V
14pin
12pin
9pin
0.9V
K
—
0.95V
15pin
13pin
10pin
— — 5.0V
Equivalent circuit
15k
8k
GND
Vcc
133
harman/kardon
BA7660FS
Function
Muting control
If MUTE (pin 1) is set to HIGH, muting
is carried out simultaneously on all
three channels.
Signal input
Input signals consist of composite
video signals, Y signals, C signals,
RGB, and others. The input level is
within a range of 0 to 1.3 (min.) to 1.5
(typ.).
Ground
Signal output
The signal output level is (0.9 + 2 ×
input voltage [V]). Pins 9, 12, and 14
are the pins for sag correction. If pins
10, 13, and 15 are set to 0.2V or less,
the protective circuit is triggered and
the power-saving mode is accessed.
Power supply