This service manual of the old video cassette recorder VT-LC50EM is very good readable even the tiniest numbers (i.e. IC-pins). The circuits are very clear. Many details of the schematic are very good described but in GERMAN language. Many schematic details - but complete at all. Common background information of several details are enclosed and physical knowledge of the TFT liquid crystal display for example. The manual lacks PCB drawings. If you understand german I would recommend this manual for you.
Text excerpt from page 161 (click to view)
3-23. Replacing the X-axis Linear-way
Installation Procedure Linear-way at the side of the basic console 1. Attach the parts by reversing steps 16 through 18 of the removal procedure. 2. While putting the X rail (upper) assembly to the two X reference pins, fix them with the four hexagonal head cap bolts (with dropsafe). m . The distance from the right end of the frame to the X joint must be 5 ± 0.5 mm when viewed from the side of the rear door. . It must not be possible to insert a thickness gauge (t = 0.05) between the linear-way and the X reference pins. 3. Fix the X joint with the four hexagonal head cap bolts by reversing step 14 of the removal procedure. Linear-way at the side of the extension console 4. Temporarily fasten a new linear-way by reversing steps 22 through 25 of the removal procedure. n Do not completely fasten the screws used to temporarily fix the linear-way leave them loose. 5. Slide the X-axis linear-way at the side of the extension console. While putting it to the Xaxis linear-way at the side of the basic console, temporarily fasten the two hexagonal head cap bolts of (c) and (e) removed in steps 20 and 21 of the removal procedure. n Attach the X-axis linear-way to the X joints with the two hexagonal head cap bolts of (c) and (e) so that no clearance is made by the spring washers between the linear-way and X joints.
X joint (c) M4 x 14
Right end of the frame 5 ±0.5 mm
X joint
X-axis linear-way
Side of the rear door X reference pins The clearance must be 0.05 mm or less. Reference pin
X-axis linear-way
Side of the basic console
X joint Side of extension console (e) M4 x 14 Put the linear-way at the side of the extension console to here.
