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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.
PURITY ADJUSTMENT ADJUSTMENT PRECAUTION
NO. Adjustment part Adjusting procedure conditions Waveform and others 1 PURITY ADJ. 1. Receive GREEN-ONLY signal. Adjust the beam current to about 700 ÂµA. 2. Degauss CRT enough with the degausing
Make sure TV set is in â€¯NORMAL CONDITIONâ€¯ before switch to service mode for Adjustment.
a b NO. Adjustment part Adjusting procedure conditions Waveform and others coil.
netic field and keep the static convergence (PRESET) but with no signal input. roughly adjusted. Adjust the PLL data. through microscope. Adjust the landings to the tuner antenna. (RF SWEEP) 3. Adjust the sweep generator's to 80dBuV. Â» Tightening torque: 108N Â± 20 N the tuner's IF output terminal. (This terminal Fig. 1 to A rank requirement.
1 Tuner IFT 1. Get tuner ready to receive the E-9 signal, 3. Maintain purity magnet at the zero mag10k 1n60 1000p 4. Observe the points a, b, as shown in Fig. 1-1 2. Connect the sweep generator's output cable
Oscilloscope IF OUT
4. Connect the response lead (use LOW IMPED5. Orient the raster rotation to 0 eastward. (11kgf Â± 2 kgf) must have the probe alone connected). A
ANCE probe with wave detector; see Fig.1) to 6. Tighten up the deflection coil screws. 7. Make sure CRT corners landing meet the 5. Set the RF AGC to 0 6 V with no saturation
P C 6. Adjust tuner IF coil to obtain the waveform sheet to correct it.
A rank requirements. If not, stick the magnet with the waveform.
as shown in Fig. 2. Note:This adjustment must be done after -1.5+/-0.8dB warming up the unit for 30 minutes or longer with a beam current over Note: Be sure to keep the tuner cover in 700 ÂµA position during this adjustment. * For the following colours press R/C RGB key to Rank "A" change. (on right of the CRT)
Green-only Blue-only Red-only
B A = B
2 RF-AGC 1. Receive "PAL COLOUR BAR" signal. Note:
The loss of using impedance adapter Fig. 1-3 Fig. 3 in NORMAL MODE, the colour
A TAKE OVER Â» Signal Strength: 57 Â±1 dBÂµV (75 open) For the 50 ohm signal strength
POINT 2. Connect the oscilloscope to TP201 (Tunerâ€™s gauge, when not using 50/75 Signal-colour ADJUSTMENT impedance adapter, signal screen cleared AGC Terminal) as shown in Fig. 3. (I C BUS strength is 52 Â±1 dBÂµV(75 ohm B2 CONTROL) open), instead of 57 Â±1 dBÂµV
Oscilloscope + TP201 (75 ohm open). A = B 0.1V â€” Precaution:
Bias box TV Set
Rank "A" (on left of the CRT)
Â» Bias box: About 4.5 V
* Press R/C RGB key for 1 second will change to RGB mono colour
3. Call "AGC" mode in service mode. Adjust the mode.
4. Change the antenna input signal to colours screen.
The TEXT "R. G. Cy" Key can "AGC" bus data to obtain the Tuner output pin drop 0.1 V below maximum voltage. be directly use change to other
63~67dBÂµV, and make sure there is no noise.
5. Turn up the input signal 90~95 dBÂµV to be
sure that there is no cross modulation beat.