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 ;
tres bon document
cela a permis de verifier la connection de l'ecran
merci
salutations
;
The manual was of good quality with high resolution schematic diagrams.
;
The manual was very clear and contained all the information I was looking for. My dishwasher is working again because of this servicemanual!
;
Quality scan, great manual. I solved my problem with this manual.
 ;
The AKAI 1720 model reel to reel tape recorder described in this Manual is quite an old unit - circa late 1960's. As a consequence, the description of the mechanical details - and adjustments thereof - is quite critical. The manual does this quite well. The schematics are also well presented and have detailed PCB overlays. Probably the only negative is that some half-tone detail has been lost from the original manual as it has been scanned in simple B&W.
CD-403/403-S/404/406/DPF-R3030/R3030-S/R4030/R4030-S/R6030
ADJUSTMENT
No. ITEM INPUT SETTINGS OUTPUT SETTINGS PLAYER SETTINGS ALIGNMENT POINTS ALIGN FOR FIG.
Open the tray (Normal mode), then turn the power off. While pressing the REPEAT key, turn the AC ON. (Test mode) Press the PLAY/PAUSE key, then confirm that the display is "03". On the power from 0.08 to 0.15 mW, when the diffraction grating is correctly aligned with the RF level of 1.0 Vp-p or more.
1
LASER POWER
�
Apply the sensor section of optical power meter on the pickup lens.
�
(a)
1. Load a disc on disc 1 tray. 2. Turn the power off. 3. While pressing the REPEAT. key, turn the power ON to enter the Test mode. Connect an oscilloscope as follows. CH1: Connect the DC voltmeter to CN3(pin3 and 4) on X32. Press the PLAY/PAUSE key, then confirm that the display is "05". Press the PLAY/PAUSE key, then confirm that the display is 03 or 05.
1
FOCUS ERROR BIAS
Test disc Type 4
FE BIAS VR1
Optimum eye pattern
2
LASER CURRENT CHECK
Test disc Type 4
-
0.5±0.2V
Note: Type 4 disc : SONY YEDS-18 Test Disc or equivalent. LPF: Around 47 k�+ 390 pF or so. Step 1~4 are in Test Mode.
(a) Laser power
0.08~0.15 mW
Pickup
Optical power meter
5
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