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I am a vintage hifi collector. No way to fix that device without the appropriate service manual...thanks to your site I got it and every thing is easier now. I got the manual right after ordering: fast cheap accurate ... thank you
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Wonderful job clear. Qick fantastic. These people are really good. If even a problem arise they are wonderful assisting you. These scheme is so net despite this is a very old TV. Thank you for everything!!!!!!!!
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Detailed schematic diagram, manual for professionals
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Good service manual,exploded view,adjusment and test point locations,head alignment,mechanical checks and adjusments,all perfect.
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Block diagram,play rec block diagram,adjusments, it's a very good well done repair manual.
PIF ADJUSTMENT
No. Adjusting point 1 Adjusting procedure/conditions Waveform and others Note: For the 50 ohm signal strength gauge, when not using 50/75 impedance adapter, signal strength is 52 ±1 dBµV (50 ohm open), instead of 54 ±1 dBµV (75 ohm open). precaution: The loss of using impedance adapter. No. Adjusting point 1 Purity adjustment RF-AGC 1. Receive �PAL COLOUR BAR� signal. check cut in » Signal Strength: 54 ± 1 dBµV (75 ohm open) adjustment (PRE SETTED) 2. Connect the oscilloscope to TP210 (Tuner�s AGC Terminal) as shown in Fig. 1.
PURITY ADJUSTMENT
Adjusting procedure/conditions 1. Receive the GREEN-ONLY signal. Adjust the contrast control to have a beam current to 700 µA. 2. Degauss the CRT enough with the degausing coil. Note: Follow the Job Instruction Sheet to adjust the magnetic field. Vertical Bv : -0.050 mT (-0.50 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 landings to �A� rank requirements. 5. Orient 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 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. Waveform and others
a
b
Oscilloscope 0.1V + � Bias box + �
TV Set TP210
Fig. 2-1
» Bias box: About 4.5 V
A
Fig. 1
B A=B
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
* For the following colours press R/C RGB key to change.
Green-only Blue-only Red-only
B A=B
redish Absolved
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.
CX51TXZ
7-1
7-2
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