Sony KL-37W2U, Руководство по обслуживанию

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KL-37W2/37W2K
RM-838
KL-50W2/50W2K/50W2U
RM-838
5) Turn RV5609 <BH, GAIN> and adjust so that “90 IRE ~
100 IRE” might be “65
±
10 mV”
(RV5609 can be adjusted at mechanical center of the VR
to obtain above metioned condition. In case that “100 IRE
~ GND” is above 3.7 V Adjustment is N.G)
65 mV
90 IRE
10 IRE
B ch 160 mV
(6) IC level adjustment (R ch)
1) Change to “WIDE Mode”.
2) Input PAL double speed signal 10 step waveforms.
2.0 ± 0.02 Vp-p
2.7 ± 0.02 V
GND
3) Add 0 V to TP5211 <RLBS> and 9 V to TP5210 <RHBS>
by DC power supply.
4) Adjust the level by RV5205 <R-GAIN> as “0 IRE ~ 100
IRE” on TP5203 <R-sig2> is 1.50
±
0.02 Vp-p.
R ch
6.2 ± 0.02 Vp-p
G ch
9.6 ± 0.02 Vp-p
B ch
6.7 ± 0.02 Vp-p
R ch 1.50 ± 0.02 Vp-p
G ch 3.10 ± 0.02 Vp-p
B ch 1.50 ± 0.02 Vp-p
5) Adjust by RV5206 <R-BIAS> so that “Positive polarity 0
IRE ~ Negative polarity 0 IRE” might be 6.2
±
0.02 Vp-p.
R ch
6.2 ± 0.02 Vp-p
G ch
9.6 ± 0.02 Vp-p
B ch
6.7 ± 0.02 Vp-p
R ch 1.50 ± 0.02 Vp-p
G ch 3.10 ± 0.02 Vp-p
B ch 1.50 ± 0.02 Vp-p
7) By RV5204 <R-S, GAIN2> & RV5208 <R-S, BIAS2>,
adjust the waveform for TP5204 <R-sig3> to the wave-
form for TP5203 <R-sig2>. (within
±
0.02 V)
6) By RV5203 <R-S, GAIN1>, RV5207 <R-S, BIAS1>, ad-
just the waveform for TP5202 <R-sig1> to the waveform
TP5203 <R-sig2>. (within
±
0.02 V)
R ch
6.2 ± 0.02 Vp-p
G ch
9.6 ± 0.02 Vp-p
B ch
6.7 ± 0.02 Vp-p
R ch 1.50 ± 0.02 Vp-p
G ch 3.10 ± 0.02 Vp-p
B ch 1.50 ± 0.02 Vp-p
8) Confirm that the waveform for TP5203 <R-sig2> is
within standard mentioned.
(7) IC Level Adjustment (G ch)
1) Proceed 4) ~ 8) by the same way as R ch.
2) Proceedure 3) to add external voltage must not be done.
As for “related VR” and “output terminal” please refer to
the Fig.
(8) IC Level Adjustment (B ch)
1) Proceed 3) ~ 8) by the same way as R ch.
As for “related VR” and “output terminal” please refer to
the Fig.
R ch
TP5202
TP5203
TP5204
TP5211
TP5210
RV5205
RV5206
RV5203
RV5207
RV5204
RV5208
G ch
TP5402
TP5403
TP5404
TP5411
TP5410
RV5405
RV5406
RV5403
RV5407
RV5404
RV5408
B ch
TP5602
TP5603
TP5604
TP5611
TP5610
RV5605
RV5606
RV5603
RV5607
RV5604
RV5608
-Sig 1
-Sig 2
-Sig 3
LBS
HBS
-GAIN
-BIAS
-S.GAIN 1
-S.BIAS 1
-S.GAIN 2
-S.BIAS 2
(9) V com Adjustment
1) Change to “WIDE Mode”.
2) Input PAL double speed signal 10 steps waveform.
2.0 ± 0.02 Vp-p
2.7 ± 0.02 V
GND