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Easy and secure way to get a complete service manual of a vintage hifi component. Only some parts of the print copy are dificult to read. Nice price!
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The manual is an excellent reproduction with complete schematics, made troubleshooting and repair a simple process.
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Up to now you are the BEST! Prompt-efficient and so reasonable ! I have been after SONY service manual for quite some time !Thank you very much ! I can recomend your service to
all my collegagues ! V.Bergfield .
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This is a very good quality print (scan) of the original SONY service manual. The original from Sony is on very thin paper. Nevertheless it is very clear and sharp and excellent readable. I'm very satisfied to have now this rare document. I've looking for it many years (infrequent). It contains very detailed circuit diagrams, exploded views, part lists, PCB view with good readable connection lines. Very recommended.
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A complete manual with all the needed details of calibrations and service instructions about the radio receiver.
A big deal.
Many thanks !
PURITY CONVERGENCE ADJUSTMENT
No. Adjusment point Conditions/Adjusting procedure Waveform or others
PURITY ADJ. GREEN-ONLY Adjust 1 CONVERGENC 1. Receive the "Crosshatch Pattern" signal.
beam current to ~ 500 µA. ADJ. 2. Using the remote controller, call NORMAL mode. BGR
2. Maintain purity magnet at the zero magnetic ( To be done
a b B field and keep static convergence roughly after the purity STATIC CONVERGENCE
ours. through microscope. Adjust landing to the 2. Turn the 6-pole magnet to proper opening anA rank requirements. Fig. a
3. Observe points a, b, as shown Fig. 1-1 gle in order to superpose the blue and red col-
adjusted. adjustment.) 1. Turn the 4-pole magnet to a proper opening anG R
RGB 4. Orient raster rotation 0 eastward. gle in order to superpose the green colour over 5. Tighten up deflection coil screws. the blue and red colours.
Fig. 1-1
6. Make sure CRT corners landing meet the A DYNAMIC CONVERGENCE G
» Tightening torque: 108 20 N (11 ± 2 kgf) R
rank requirements. If not, stick magnet sheet 1. Adjust convergence on fringes of the B to correct it. screen in the following steps. A Note: This adjustment must be done after a) Fig. a: Drive the wedge at point "a" and swing
deflection coil upward. warming up the unit for 30 minutes or and swing the deflection coil downward. G
Fig. b
longer with a beam current over 500 µA. b) Fig. b: Drive the wedge at points "b" and "c" R G B B A = B the deflection coil rightward.
d) Fig. d: Drive the "b" wedge deeper and swing c) Fig. c: Drive the "c" wedge deeper and swing R
Fig. 1-2 the deflection coil leftward. Rank "A"
R
Fig. c 2. Fix all wedges on the CRT and apply glass tape over them. (On right of the CRT) BGR magnet unit (purity, 4-pole, 6-pole magnets) and B magnet unit lock screw. 3. Apply lacquer to the deflection yoke lock screw, G
7
A Finally received the Red-only and Blue-only sigB Wedge "a" A = B Fig. 1-3 Lacquer Rank "A" (On left of the CRT)
nals to make sure there is no other colours on the Fig. d screen.
About 100 Deg
Wedge "c" "b"
4-pole magnet 6-pole magnet CRT neck
(21") 20cm Lacquer
Purity magnet 40cm(14")
14U10/15 14U20/25
7-1 7-2
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