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A great copy of the manual, and the only one I could find anywhere on the net! The circuit diagrams are easily readable, all component values marked and easy to see. A highly appreciated download!
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Great Manual. This manual is available no where else. It was exactly what I was looking for.
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The TEAC A-1500's Service Manual was instrumental in reviving this classic reel-to-reel. Not only does it have the schematics, exploded parts diagram and parts list, it also provided mechanical adjustment information that approximate factory default settings.
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This service manual was determinant to enable to fix my Alpine Amplifier. I am pleased with my purchase. For a 5 star rating I would like to see a higher resolution scan of the printed circuit board lay-out because the gray scale grafics was dificult to see. Also some schematic diagrams were scanned at a slight angle. Never the less, it had all information I needed to troubleshoot and service my equipment.
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Complete manual, the good quality of reproduction allows enlarged print-out of the schematic diagram in the size it probably had in the original print edition and which is necessary for practical use.
Alignment and Adjustments
4-4 Other Adjustments
4-4-1 Screen Adjustment
1. Warm up the TV for at least 30 minutes. 2. Turn to the Video Mode (No Signal) using a remote-control. 3. Connect an oscilloscope to RK,GK,BK. 4. Adjust the VR (VR501, VR531, VR561) screen so that RK, GK, BK pulse is 20Vp-p each. (Turn the R,G,B VR screen fully counterclockwise in the area of each flyback line.)
4-4-3 Sub-Brightness Adjustment
1. Input a sub-brightness adjustment signal. (TOSHIBA PATTERN) 2. In the stand-by mode, press the remote-control keys in the following sequence : DISPLAY����U�MUTE �Power On 3. Select SBT by pressing the Volume +/- keys. 4. Adjust so that the 7th step on the right side of the screen is not seen (Use the Volume +/keys). 5. Press the Menu key to exit.
4-4-2 White Balance Adjustment
1. Select the �STANDARD� video mode. 2. Input 100% white pattern. 3. In the stand-by mode, press the remote-control keys in the following sequence: DISPLAY����U�MUTE �Power On 4. Warm up the TV for at least 30 minutes. 5. Input a 10-step signal. 6. R-cut off, B-cut off, and G-cut off by pressing the Volume +/- keys. 7. Adjust the low light with viewing the dark side of the screen. 8. Select R-drive, G-drive, and B-drive by pressing the Volume +/- keys. 9. Adjust the high light with viewing the light side of the screen. 10. If necessary, redo adjustments 6~9. 11. Press the Menu key to exit.
4-4-4 High Voltage (31KV) Check
PRECAUTION
1. Input a lion head pattern. 2. Select �STANDARD� video mode. 3. Warm up the TV for at least 10 minutes. 4. Use a 1000:1 probe.
ADJUSTMENT
1. Connect the (+) terminal of the 1000:1 probe to the high voltage distributor and the (-) terminal to GND (located on the deflection board). 2. Adjust VR471 (located on the deflection board) so that the digital meter indicates DC 31V ± 0.1V.
Samsung Electronics
4-7
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