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I used your service and I found myself well I need service manual teac v plate 770 and I was able to access and remove the belt that erno routes. thanks I recommend it to all
At first I thought there had been a mix up as I required the service manual for the cassette unit and the one supplied was for the CD unit. However when I scrolled further down I realised that both had been scanned together! This enabled me to dismantle and repair the cassette unit as intended and I also have a copy of the manual for both the CD and graphic equaliser units should I ever need them. Thanks very much for a great service.
Excelent service, the manual is complete, very cheap and fast
The item received was as described, as expected. I was pleased with the order. Thank you.
Superb rendition. Drawings (schematics) complete and unabridged. I do a great deal of vintage audio restoration. Documentation is essential for successful repairs. I have found sources over the years that offer good documentation, but rarely all that is necessary. Owner's Manuals has filled that void with complete and legible documentation. They have narrowed my "favorites" to a more manageable collection. This Denon manual in particular contained the latest revisions level, and offered alterations favorable to updating the item. The Illustrated Parts Breakdown (IPB) was well enough detailed to simplify part symbols and physical locations. You will not be disappointed!
Note: 1. CD Block is basically constructed to operate without adjustment. Therefore, check each item in order given. 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10Mâ¦ impedance. 4. Clean the object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks. S Curve Check
oscilloscope BD board
Note: Clear RF signal waveform means that the shape âââ can be clearly distinguished at the center of the waveform.
RF signal waveform
VOLT/DIV : 200mV TIME/DIV : 500ns level : 1.45 Â± 0.25 Vp-p
E-F Balance (1 Track Jump) check
oscilloscope BD board TP (FE) TP (VC) + â TP (TE) TP (VC) + â
Procedure : 1. Connect the oscilloscope to test points TP (FE) and TP (VC). 2. Connect TP (FEI) and GND, and TP (AGCCON) and GND of the BD board with lead wires. 3. Press the 1/u button to turn the set ON. 4. With the disc (YEDS-18) loaded, press the Â·P button and perform focus search. (Focus search will be performed in the same way even while the disc table is pushed in and out.) 5. Check the symmetry and peak to peak level of the oscilloscope waveform (S curve) at this time.
Procedure: 1. Connect oscilloscope to test point TP (TE) on BD board. 2. Press the 1/u button to turn the unit ON. 3. Put disc (YEDS-18) in to play the number five track. 4. Press the Â·P button. 5. Check the level B of the oscilloscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following: â¢ A/B x 100 = less then Â± 22 (%) â¢ B = 1.3 Â± 0.6 Vp-p
1 track jump waveform
Center of the waveform
A Within 4 Â± 1 Vp-p B
B A (DC voitage)
6. After check, remove the lead wire connected in step 2. Note: â¢ Try to measure several times to make sure than the ratio of A : B or B : A is more than 10 : 7. â¢ Take sweep time as long as possible and light up the brightness to obtain best waveform. RF Level Check
oscilloscope BD board TP (RF) TP (VC) + â TP (VC)
Symmetry level : 1.3 Â± 0.6 Vp-p
Adjustment Location : [ BD BOARD ] â SIDE A â
Procedure : 1. 2. 3. 4. 5. 6. Connect oscilloscope to test point TP (RF) and TP (VC) on BD board. Connect TP (AGCCON) and GND of the BD board with lead wires. Press the 1/u button to turn the set ON. Put disc (YEDS-18) in and playback 5 track. Confirm that oscilloscope waveform is clear and check RF signal level is correct or not. After check, remove the lead wire connected in step 2.
TP (AGCCON) TP (FE) TP (TE) TP (FE1)
â 18 â