Philips DVDR1000/001 Service Manual page 188

GB 188 9. DVDR1000 /0x1 /691
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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
Circuit-, IC Descriptions and List of Abbreviations
Reference
IN OUT Equivalent circuit
voltage
— —
— —
— — 0V
14pin
12pin
9pin
0.9V
—
0.95V
15pin
13pin
10pin
— — 5.0V
Muting control
15k
If MUTE (pin 1) is set to HIGH, muting
is carried out simultaneously on all
8k
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
GND
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.
Vcc
Power supply
Function