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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
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Wanting to repair a neighbours tape recorder I needed the necessary information, it makes it easier. Although the service manual is described as "Language : English" To my dismay I found that it is entirely written in German, a language I do not understand. At least I now have the schematics which will help of sorts. I may not use this service again due to the laguage difficulty after all when it states English you do not expect it to be entirely in another language.
AV-21F1P
DEFLECTION CIRCUIT ADJUSTMENT
The setting (adjustment) using the remote control unit is made on the basis of the initial setting values shown on page 14. The setting values which adjust the screen to the optimum condition can be different from the initial setting values. q Do not change the initial setting values of the setting (adjustment) items not listed herein.
Item
Measuring instrument q Signal
Test point
Adjustment part
Description
Adjustment
56. V
POS. 60
(60Hz) 1. Receive a cross-hatch signal. (NTSC or PAL-M) 2. Select the sub menu screen PICTURE from the SERVICE MENU. 3. Select 56. V POS. 60 with the MENU 1/4 key, and confirm that the setting value is 0. NOTE: The value of 56. V POS. 60 should be fixed to 0. 4. Confirm the initial setting value of 57. V SIZE60, 58. V S CR60, and 59. V. LIN. 60. 5. Adjust 57. V SIZE60 and make the vertical screen size 92% of the picture size, with the MENU 2/3 key. 6. Adjust 59. V. LIN. 60 and 58. V S CR60 to get the best vertical linearity, with the MENU 2/3 key.
of generator V. HEIGHT V. POSITION q Remote V. LIN. V. S CR control unit
57. V SIZE60 58. V S CR60 59. V. LIN. 60
50. V POS. 50 51. V SIZE50 52. V S CR50 53. V. LIN. 50
Screen size
(50Hz) 1. Receive a cross-hatch signal. (PAL-N) 2. In the sub menu screen PICTURE, select 50. V POS. 50, 51. V SIZE50, 52. V S CR50, and 53. V. LIN. 50 with the MENU 1/4 key, and confirm their initial setting values. 3. Adjust 51. V SIZE 50 and make the vertical screen size 92% of the picture size, with the MENU 2/3 key. 4. Adjust 53. V. LIN. 50 and 52.V S CR50 to get the best vertical
Screen size 92%
Picture size 100%
linearity, with the MENU 2/3 key. 5. Adjust 50. V POS. 50 so that the vertical center line comes close to the CRT vertical center as much as possible, with the MENU 2/3 key. q Readjust V SIZE, V. LIN, V S CR if necessary.
Picture size 100%
Adjustment q Signal of generator H. POSITION q Remote control unit
54. H POS.60
(60Hz) 1. Receive a cross-hatch signal. (NTSC or PAL-M) 2. Select the sub menu screen PICTURE from the SERVICE MENU. 3. Select 54. H POS.60 with the MENU 1/4 key. 4. Confirm the initial setting value of 54. H POS.60. 5. Adjust 54. H POS.60 so that the screen will be horizontally centered, with the MENU 2/3 key.
48. H POS.50
(50Hz) 1. Receive a cross-hatch signal. (PAL-N) 2. In the sub menu screen PICTURE, select 48. H POS.50 with the MENU 1/4 key. 3. Confirm the initial setting value of 48. H POS.50. 4. Adjust 48. H POS.50 so that the screen will be horizontally centered, with the MENU 2/3 key.
No. 56033
17
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