Schematy są ale można wysilić się i zrobić kolorowy skan i o większej rozdzielczości. Wtedy schematy płytek będą czytelniejsze. Całość super jako wartość merytoryczna. Wszystkie dane potrzebne do podłączenia różnego rodzajów urządzeń takich gramofon, CD itd.
jedyne do czego mogę mieć zastrzeżenie to jakość zdjęć zawartych w przesłanej instrukcji serwisowej ponieważ są fatalnej jakości, praktycznie nieczytelne. tak poza tym jestem zadowolony to jest to czego szukałem.
Tekstowy podgląd strony 2 (kliknij aby zobaczyć)
SERVICE ADJUSTMENT
No. Adjusting point
PURITY ADJUSTMENT
Adjusting procedure/conditions 1. Receive the GREEN-ONLY signal. Adjust the contrast control to have a beam current of about 700 µA. 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) (See page 12.) 3. Maintain the purity magnet at the zero magnetic field and keep the static convergence roughly adjusted. 4. Observe the points �a� and �b� as shown in Fig. 2-1 through the microscope. Adjust the landing to the rank �A� requirements. 5. Adjust the raster rotation to 0 eastward. 6. Tighten up the deflection coil screws. » Tightening torque: 108 ±20 N (11 ±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 500 µA 700 µA. Note: Set the service mode by TP1001 and TP1002 (short) then press factory process R/C RGB key to change to RGB mono colour mode. * For the following colours press R/C RGB key to change.
Green-only Blue-only Red-only
Waveform and others
PIF ADJUSTMENT
No. Adjusting point 1 RF-AGC check cut in adjustment (PRESETTED) Adjusting procedure/conditions 1. Receive �PAL COLOUR BAR� signal. » Signal Strength: 54 ± 1 dBµV (75 ohm open) 2. Connect the oscilloscope to TP210 (Tuner�s AGC Terminal) as shown in Fig. 1. Waveform and others Note: For the 50 ohm signal strength gauge, when not using 50/75 impedance adapter, signal strength is 52 ±1 dBµV(75 ohm open), instead of 54 ±1 dBµV (75 ohm open). precaution: The loss of using impedance adapter.
1
Purity adjustment
a
b
Fig. 2-1
Oscilloscope 0.1V + �
TV Set TP210
A
Bias box + �
» Bias box: About 4.5 V
B A=B
Fig. 1
3. Drop Input Signal strength to 51 ±1 dBµV (75 ohm open). 4. Under 1. and 3. conditions, the output voltage should be no change or below +0.1 V. In addition, change input signal strength to 57 ±2 dBµV, the output voltage should be no less than -0.1 V. 5. Change the antenna input signal to 63~67 dBµV, and make sure there is no noise. 6. Turn up the input signal to 90~95 dBµV to be sure that there is no cross modulation beat.
Fig. 2-2 Rank "A" (on the right of the CRT)
7
A
B A=B
Signal-colour screen cleared
Fig. 2-3
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. The TEXT Key �R. G. Cy� Key can be directly use to change to other colours screen.
