Pioneer AVD-505 Service Manual page 24

AVD-505
- PCB Adjustment Order
Order Item Mode
1 Power ON
2 5.3V Adjustment
3 Confirm at 13V
4 Confirm at 8V
5 Confirm at -16V
6 Confirm VCC
7 Confirm VGL
8 Picture RGB
Adjustment
preparation
9 Confirm RGB
Csync input
10 Sub-bright RGB
Adjustment
11 PLL Adjustment RGB
12 Black level RGB
Adjustment
13 Vcom amplitude RGB
Adjustment
14 Confirm Vcom RGB
DC
15 Gamma 2 RGB
Adjustment
16 R sub-bright RGB
Adjustment
24
Input signal
(input point, waveform,
specification, alternative
measuring conditions)
TP·PWRVI···14.4 ± 0.2V
TP·GNDVI···GND
TP·GNDV···GND
Random picture signals
TP·ANR···Red 0.7Vp-p
TP·ANG···Green 75½
TP·ANB···Blue Terminate
TP·CSYNC···synchronizing signal
0.3Vp-p 75½ terminal
Bright volume to
centre click position
Random video signal input
TP·SYNCOUT···GND
TP·ANG···GND or else open
TP·ANR···random
TP·ANB···random
Bright volume to
center click position
Step signal
Step signal or else white 50%
Video signal
Output signal Measuring
(measuring point, instrument
wave form,circuit
explanation)
TP·V5R3···DC DC V Meter
TP·V13···DC DC V Meter
TP·V8···DC DC V Meter
TP·VM16···DC DC V Meter
TP·VCC···DC DC V Meter
TP·VGL···DC DC V Meter
Oscilloscope 63.5 ± 2.0µSec.
TP·CSYNC
A
TP·BRIGHT···DC DC V Meter
TP·RTH Frequency
counter
TP·GOUT Oscilloscope Amplitude
Amplitiude
TP·COM Oscilloscope Amplitude
Amplitiude
TP·COM Oscilloscope Central voltage
Central
voltage
Oscilloscope "V
TP·GOUT
"V
TP·GOUT, TP·ROUT Oscilloscope Superimpose
'
Specification Adjustment
point
5.3 ± 0.1V
VR1001
13.0 ± 0.5V
8.0 ± 0.5V
-16.0 ± 0.5V
-10.9 ± 0.5V
-8.9 ± 0.5V
2.15 ± 0.05V
VR1409
15.734 ± 0.01kHz
L1503
VR1413
3.75 ± 0.1V
VR1412
8.0 ± 0.1V
VR1651
2.0 ± 0.1V
VR1405
3.65 ± 0.1V
VR1404
the two
waveforms (50%
white part) of
green and red,
' and
'
parts
Offset: Within
± 0.1V