JVC HR-XV28SEF, Service Manual

Page: 106 / 131

Base Base
STOP PLAY
Emitter Emitter Collector Collector
Tran-
sistor
Q201 3.1 3.28 0.009 2.28 3.05 2.34
Q202 3.14 3.28 0.01 3.1 3.25 0.6
Q203 4.9 0.01 4.9 4.86 5.1 4.85
Q204 4.9 0.04 4.9 4.86 5.2 4.86
Q205 0.003 0.002 4.9 0.003 0.003 4.8
Q206 0.003 0.002 4.9 0.003 0.016 4.86
Q301 4.4 5.08 4.98 4.4 5.08 4.98
Q302 0.74 0.006 0.001 0.74 0.006 0.001
Q303 0.72 0.006 0.008 0.72 0.006 0.008
Q306 1.63 2.22 0.01 1.63 2.22 0.01
Q307 2.15 1.48 0.001 2.15 1.48 0.001
Q308 0.01 4.99 5.24 4.51 3.85 5.23
Q311 0.00 0.00 0.00 -2.20 0.24 3.51
Q403 0.002 1.55 0.76 0.002 0.009 -0.4
Q404 0.002 1.6 0.76 0.002 0.009 -0.6
Q405 2.54 3.27 3.25 3.23 3.26 -0.4
Q501 0.009 0.002 0.02 0.009 0.002 0.02
Q504 2.15 2.83 0.002 2.15 2.83 0.002
Q505 1.63 1.65 5.15 1.63 1.65 5.15
Q507 2.15 2.8 0.002 2.15 2.8 0.002
Q550 0.01 0.002 1.66 0.01 0.002 1.66
Q901 0.76 0.002 0.008 -0.48 0.002 0.004
Q701 5.78 5.03 5.24
VOLTAGE CHARTS
IC301 Pin 75
PB mode
500mvp-p IC301 Pins 48, 50,
54, 56
Video in 1Vp-p IC301 Pin 67
PB/REC mode
4.0Vp-p IC301 Pin 100
REC mode
1.1Vp-p
IC301 Pin 3
REC mode
2.0Vp-p IC301 Pin 65
PB mode
2.02Vp-p IC301 Pin 43
PB mode
400mVp-p IC301 Pin 28
PB mode
400mVp-p
IC301 Pin 68
PB/REC mode
5Vp-p IC301 Pin 69
PB/REC mode
5Vp-p IC301 Pins 21
REC mode
340mVp-p IC301 Pins 25
PB mode
300mVp-p
IC301 Pin 29
PB mode
400mVp-p IC301 Pin 70
PB mode
3.6Vp-p
* IC301 Oscilloscope Waveform
* IC501 Waveform Photographs
V.HSW
(IC501 Pin 23)
1V/10mS
REC/PB MODE DV.SYNC
(IC501 PIN 24)
1V/100uS
QUE/REV MODE CTL(+)
(IC501 Pin 74)
1V/10mS CTL(-)
(IC501 Pin 75)
1V/10mS
DFG/DFG
(IC501 PIN 65)
1V/10mS
REC/PB MODE CFG
(IC501 Pin 67)
1V/10mS V.IN
(IC501 Pin 49)
500mV/20uS V.OUT
(IC501 Pin 47)
500mV/20uS
EE/PB MODE
WAVEFORMS
2-55 2-56