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got exactly what i ordered in a very timely manner. will use again for other manuals
I'm happy. Good quality. Very helped me with my work..............................
This is the second Manual I have ordered from owner-manuals, I give it five stars because it is exactly what I expected given the age of the equipment. So the contents look a bit aged and the pictures a bit grainy, it fulfills my needs and I am glad I can still get hold of them.
thank u so much for this manual that was so cheap that i thought it was a scam but i gambled anyway because it was too good of a deal to pass up and behold,the manual has everything and details of everything even the screws and im still amazed and very happy with my manual .so take my word and jump on it before they realize how cheap they selling thier manuals..thank you so much for taking time to read my thoughts
I do not have very much to say.
The price is quite covenient, delivery was better as promised (about 12 ours, against the specified 24 hours if I remember well), and the quality of the PDF is more than acceptable.
The Service Manual of Sansui R30 itself is also satisfactory: good graphic for schematics and layouts, simple and well structured.
1. CD Test Mode
1-1. How to Start Up the CD Test Mode
While pressing the âCD OPEN/CLOSEâ button, connect the AC plug to the power outlet. When the CD test mode is started up, When the CD test mode starts up, all displays turn on. Note: When the PANEL, TOP has been removed for each CHAS, GEAR, be sure to short pin-4 and pin-5 of the connector CN3 on the CD board in order to recognize that the CD lid is closed.
TP1 (RF) IC1 TP2 (VREF)
1-2. Releasing the CD Test Mode
Remove the shorting between pin-4 and pin-5 of the connector CN3 on the CD board to return to the original setup. Then press the POWER button or the FUNCTION button, or remove the AC plug from the power outlet to release the CD test mode.
1-3. Function Description of the Test Mode
MODE Start mode Search mode Operation Starting up the test mode 9 CD Continuous focus searching. The pickup lens repeats the fullswing up-down motion * Note Play mode 2 Track No. and playing time are displayed Traverse mode Sled mode ; 6 5 Track No. and playing time flash CD TEST The pickup moves to the innermost track The pickup moves to the outermost track Note: If the focus search operation is continued for 10 minutes or longer, heating of the driver IC is accumulated to trigger the protection circuit that will stop operation of the CD system. .Turn off the main power and re-start operation about 10 minutes later. Sled servo. Check operation of the mechanism. TP1 (RF) TP2 (VREF) â + Normal playback. When the TOC reading is not possible, the same movement as in the search mode. Playback PAUSE mode Check APC circuit. Laser current measurement. Focus error waveform check. Focus servo. Tracking servo. CLV servo. Sled servo. Tracking servo OFF. 1. Focus Bias Adjustment Make the focus bias adjustment when replacing and repairing the optical block. Oscilloscope (DC range) TP3 (TE) TP2 (VREF) + â Indication on display CD TEST Function Contents
< CD SECTION >
Note: â¢ Connect a probe (10: 1) of the oscilloscope test point for adjustment. â¢ Connect ground (-) terminal of oscilloscope probe to TP3 (VREF) for all adjustment.
2. Tracking Balance Check Oscilloscope (DC range)
1) Connect an oscilloscope to test points TP3 (TE) and TP2 (VREF). 2) Start up the CD test mode. 3) Insert the test disc TCD-782 (YEDS-18) and enter the traverse mode of the CD test mode. 4) Confirm that the traverse waveform on an oscilloscope is vertically symmetrical as shown in the figure below. 5) After confirming the waveform, release the CD test mode.
1) Connect an oscilloscope to test points TP1 (RF) and TP2 (VREF). 2) Turn on the power switch. 3) Insert test disc TCD-782 (YEDS-18) and play back the second program. 4) Adjust SFR103 so that RF signal of the test point TP1 (RF) is MAX and CLEARREST.
A VREF B A=B VOLT/DIV: 20mV TIME/DIV: 1mS
MAX 1.8Â±0.1 Vp-p 0V EYE PATTERN must be CLEAR and MAX. VOLT/DIV: 0.5V TIME/DIV: 0.5ÂµS
3. Laser Current Check The current of the laser signal can be checked with the voltages on both sides of R2 (voltage across 10 ). The difference for the specified value shown on the label must be within Â± 6.0mA.
KSS-213F 15165 SG442
Laser current Iop =
Voltage across R2 10â¦