There are currently no product reviews.
Nice manual. Clear copy and very rare, to boot. Great price, too!
Excellent service manual. Complete service info. with schematics, step-by-step instructions and illustrations. Well worth the price!
Great product, helped me to restore vintage walkman cassette.
Just some pictures could be little bit more sharp and contrast
I love older radio's and the service manuals that are sometimes hard to find. Was able to find a manual quite easily on this site.
Thank you for your shop manual! Your help was very useful - the device is repaired! Once again - Thank you! I wish you a successful business! Edward (Russia).
No. Adjustment point 1 PURITY ADJ. Adjustment procedure/conditions 1. Receive the GREEN-ONLY signal. Adjust the beam current to ~700 ÂµA. 2. Degauss the CRT enough with the degausing coil. Note: Follow the Job Instruction Sheet to adjust the magnetic field. Vertical Bv: +0.030 mT (0.30 gauss) Horizontal Bh: +0.020 mT (0.20 gauss) (Reference: page 7-1) 3. Maintain the purity magnet at the zero magnetic field and keep the static convergence roughly adjusted. 4. Observe the points a, b as shown in Fig. 1-1 through the microscope. Adjust the landings to the A rank requirement. 5. Orient the raster rotation to 0 eastward. 6. Tighten up the deflection coil screws. Â» Tightening torque: 108 Â± 20 N (11 Â± 2 kgf) 7. Make sure the CRT corners landing meet the A rank requirements. If not, stick the magnet sheet to correct it. Note: This adjustment must be done after warming up the unit for 30 minutes or longer with a beam current over 700 ÂµA. Note: Set the service mode by JA304 & JA307 (short) then press factory process R/C RGB key to change to RGB mono colour mode. * For the following colours press R/C RGB(Hex 7E) key to change. Waveform and others No. Adjustment point 1 CONVERGENC ADJ. ( To be done after the purity adjustment.)
Adjustment procedure/conditions 1. Receive the "Crosshatch Pattern" signal. 2. Using the remote controller, call NORMAL mode. Static convergence 1. Turn the 4-pole magnet to a proper opening angle in order to superpose the blue and red colours. 2. Turn the 6-pole magnet to a proper opening angle in order to superpose the green colour over the blue and red colours. Dynamic convergence 1. Adjust the convergence on the fringes of the screen in the following steps. a) Fig. a: Drive the wedge at point "a" and swing the deflection coil upward. b) Fig. b: Drive the wedge at point "b" and "c" and swing the deflection coil downward. Fig. b Waveform and others
BGR B G R
RGB R G B
A B A=B
Rank "A" (on the right of the CRT)
c) Fig. c: Drive the "c" wedge deeper and swing the deflection coil rightward. d) Fig. d: Drive the "b" wedge deeper and swing the deflection coil leftward. 2. Fix all the wedges on the CRT and apply glass tape over them. 3. Apply lacquer to the deflection yoke lock screw, magnet unit (purity, 4-pole, 6-pole magnets) and magnet unit lock screw.
B G R
R G B
Finally received the Red-only and Blue-only signals to make sure there is no other colours on the screen.
BLUE ONLY Signal-colour screen cleared
6-pole magnet CRT neck
Wedge "a" About 100Deg Lacquer About 100Deg
Rank "A" (on the left of the CRT)
* Press R/C RGB key for 1 second in NORMAL MODE, the colour will change to RGB mono colour mode.
Lacquer Purity magnet