There are currently no product reviews.
Manual acquired with good resolution, complete in all its pages, very good policy of the folder where are saved all products purchased.
Service manual very complete and clear. It was very helpfull for my work.
This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
Good price for the manual and easy to locate on the site and download. Plus, just like the original. Thanks a lot.
PIF PURITY ADJUSTMENT
No. point Adjusting procedure/conditions Waveform and others
Tuner IFT Get tuner ready to receive CH. E 9 1 PURITY ADJ. 1. Receive GREEN-ONLY signal. Adjust the
( PRESET ) signal,but with no signal input. beam current to ~700 ÂµA.
10k 1n60 1000p
Adjust PLL data. 2. Degauss CRT enough with the degausing coil. a 2. Connect the sweep generator's output cable to the tuner antenna. ( RF SWEEP )
b Note: Follow the Job Instruction Sheet to ad-
just the magnetic field.
Oscilloscope IF OUT
Vertical Bv: +0.030 mT (0.30 gauss) 3. Adjust the sweep generator's to 80dBÂµV.
4. Connect the response lead ( use LOW IMPED100k 1000p 75ohm Horizontal Bh: +0.020 mT (0.20 gauss)
field and keep static convergence roughly must have the probe alone connected ).
E-9 CH adjusted. 5. Set the RF AGC to 0 6 V no saturation with
ANCE probe with wave detector ; see Fig.1 ) to (Reference: page 10/23) tuner's IF output terminal. ( This terminal Fig.1 3. Maintain purity magnet at the zero magnetic Fig. 4-1
4. Observe points a, b as shown in Fig. 4-1 the waveform. 5. Orient the raster rotation to 0 eastward.
6. tuner IF coil obtain waveform as P C through microscope. Adjust landing to the
shown in Fig. 2. A rank requirements. A Fig.2 6. Tighten up deflection coil screws. Note: Be sure to keep the tuner cover in posi7. Make sure CRT corners landing meet the A rank requirements. If not, stick the magnet sheet Â» Tightening torque: 108 20 N (11 Â± 2 kgf) tion during this adjustment. B
A = B RF-AGC 1. Receive "PAL COLOUR BAR" signal. Note: For the 50 ohm signal 2
to correct it. TAKE OVER Â» Signal Strength: 54 Â± 1 dBÂµV (75 ohm open) strength gauge, when not Note: This adjustment must be done after POINT ADusing 50/75 impedance warming up the unit for 30 minutes or Fig. 4-2 JUSTMENT 2. Connect the oscilloscope to TP201 (Tunerâs AGC adapter, signal strength is longer with a beam current over 700 ÂµA. (I2C BUS Terminal) as shown in Fig. 3. 52Â±1dBÂµV(75 ohm open), inNote: Set the service mode by TP1001 & (on right of the CRT) CONTROL) stead of 54Â±1dBÂµV (75 ohm TP1002 (short) then press factory proc-
Oscilloscope + TP201 Precaution: The loss of using mono colour mode.
open). ess R/C key change to RGB 0.1V impedance adapter. * For the following colours press R/C RGB key to â
Bias box TV Set
+ GREEN BLUE RED
â Signal-colour Â» Bias box: About 4.5 V screen cleared A = B
Fig. 4-3 3. Call "AGC" mode in service mode. Adjust the
"AGC" bus data to obtain the Tuner output pin Rank "A" drop 0.1V below maximum voltage. (on left of the CRT)
4. Change the antenna input signal to 63~67dBÂµV,
and make sure there is no noise. * Press R/C RGB key for 1 sec-
5. Turn up input signal 90~95 dBÂµV to be sure ond in NORMAL MODE, the
mono colour mode. Text R.G.Cy â Key can be directly use change to other colours screen.
that there is no cross modulation beat. colour will change to RGB
Complete owner's manual in digital format. The manual will be available for download as PDF file aft…