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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
Great Manual! It contains all the wiring schematics and mechanical exploded views that are essential for service and repair. I was surprised I even found this for such an old machine. Only wish I knew of this site many years ago.
Great manual very clear copied. You are making an incredible job. I appreciate a lot the rapidity and your efficiency. Thanks a lot
Good pdf of the service manual for this unit. Includes disassembly instructions, full schematics, board layouts, parts lists and diagnostic information. Some information is in the pdf twice (single pages, and split pages), but that could be how it was originally generated by panasonic, or perhaps the idea is to make it eaiser to put onto 8.5 x 11" pages.
Information was exactly what I needed. Delivery was overnight (less than 12 hours) and I was happy with the process.
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…