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Very good detail, all pages clear, exactly what I needed
;
Excellent service, and just what I needed to service my TU-7700. All pages of the manual are clear and easily readable.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
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We received the manual in a timely manner and it was exactly what we were expecting. Excellent replacement for original Service Manual.
All schematics are very legible. We are really satisfied.
;
We received the manual in a timely manner and it was exactly what we were expecting. Excellent replacement for original Service Manual.
All schematics are very legible. We are really satisfied.
7-1. Dynamic Focus
Focus is poor
FVH
FVV
Is the waveform of the DF pin in FBT correct? Yes 1. Check the CRT socket or connector wire. 2. Trouble in FBT or CRT.
HITACHI : 450V 180V SAMSUNG : 370V 180V
FVH FVV
No Is the drain voltage of the Q605 about 650V?
Yes
1. Check the waveform of] the pin 13 of FBT. 2. Check D614, D613.
No Is the base voltage waveform of the Q244 correct? No 1. Check the 12V DC line. 2. Check Q607, Q602, Q603, Q605 and Q604. 3. Check the waveform of pin 13 in IC501. 4. Check the DZ610, DZ611.
Yes
2.0V 1V 0V 0.8V
Is the waveform of the pin 13 in IC501 correct?
No
Trouble in IC501.
Yes
Trouble in D604, D605.
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