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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
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Super Anleitung. Ordentliche Auflösung. Das ganze noch in Deutsch wäre zu schön. Alle Datenblätter sind sauber Kopiert und alle Leitungswege sind sauber ausgeführt
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Thanks God for the internet and thanks for the service like this - proffessional solution on time.
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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
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The downloaded quality was as good as the orignial
KV-J14KD5/J14KF5
RM-870
SECTION 3 SET-UP ADJUSTMENTS
� �
The following adjustments should be made when a complete realignment is required or a new picture tube is installed. These adjustments should be performed with rated power supply voltage unless otherwise noted.
Perform the adjustments in the following order: 1. Beam Landing 2. Convergence 3. Focus 4. White Balance Note : Test Equipment Required: 1. Color-bar/Pattern Generator 2. Degausser 3. Oscilloscope
Controls and switch should be set as follows unless otherwise noted: PICTURE control ........................................................... normal BRIGHTNESS control ................................................... normal
.................................................................................................................................................................................................................................
Preparation : � In order to reduce the influence of geomagnetism on the set's � picture tube, face it east or west. Switch on the power and degauss with the degausser.
Purity control
3-1. BEAM LANDING
1. Input a white signal with the pattern generator. Contrast normal Brightness
}
Fig. 3-2
2. Set the pattern generator raster signal to green. 3. Move the deflection yoke to the rear and adjust with the purity control so that the green is at the center and the blue and the red take up equally sized areas on each side. (See Figures 3-1 through 3-3.) 4. Move the deflection yoke forward and adjust so that entire screen is green. (See Figure 3-1.) 5. Switch the raster signal to blue, then to red and verify the condition. 6. When the position of the deflection yoke has been decided, fasten the deflection yoke with the screws. 7. If the beam does not land correctly in all the corners, use a magnet to adjust it. (See Figure 3-4.)
b a
BLUE RED
GREEN
Fig. 3-3
Purity control corrects this area. Disk magnets or rotatable disk magnets correct these areas (a-d).
c
d
Deflection yoke positioning corrects these areas. b
c
Fig. 3-1
a
d
Fig. 3-4
� 12 �
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