|
|
|
Who's Online
There currently are 6043 guests online. |
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
It is an very good and clear scanned service manual.
very recommended.
;
Easy to order the manual. Good quality and fast delivery.
;
The Service Manual for Sansui AU-9500 was very helpfull, in complete and in good printable condition.
Thanks.
;
Dear Sir,
Document is original service document of sharp. I had a problem with the door contacts. Fuses where blown. With the manual in a few minuts is was clear what the problem was.
Manual was of great help.
With kind regards,
Martie Verhoeven
The Netherlands.
 ;
The scan is clear and well readable with very few weaker spots, usually on black background with white letters, but with enough zoom those spots can be read.
Printout is clear, the manual is complete and has all pages scanned.
I would give 5 stars, except that it is not in color, and the schematic and PCB pages are scanned on multiple pages. The document is locked (except printing) so the pages can not be extracted to compose them together for printing on the large plotter
It is worth the price tag.
TX-SR805/SA805 OPERATION CHECK-4
Condition of Protect Mode
The unit will go into Protect mode under the following conditions. (T: Thermal sensor temperature)
1. Thermal condition
Immediately T <= -30 C or Immediately T > 110 C VOLH
2. DC voltage condition
The sum of dc voltage of 7 channel speaker outputs is more than 7 V.
3. Current condition
Protect will be On if speaker output ac current >= 35 A Protect will not be On if speaker output ac current >= 11.7 A This condition is equivalent to OPERATION CHECK-2. Refer to the page 2. Test wave form:
2 msec 2 msec
20 msec
Condition of Power Supply Voltage Control
The power supply voltage(VH, VM or VL) for power amplifiers is changed by the relays: RL6601, 6602, 6611, 6612 on NAPS-9040. VH > VM > VL T: Thermal sensor temperature VOLH: Pin #99 input voltage of Main microprocessor: Q7001 (Refer to SD-4:D5 and SD-8:D2 of Schematic Diagram) This is created by the largest ac voltage in 7 speaker outputs. Conditions: Speaker imp. = 6 or 8 ohm VH: 0V < VOLH < 0.4V and T < 85 C VM: 0.4V < VOLH < 2.0V and T < 85 C VL: 2.0V < VOLH < 3.3V(Vcc) and T < 85 C VL: T > 85 C Speaker imp. = 4 ohm or BTL VM: 0V < VOLH < 0.4V and T < 85 C VL: 0.4V < VOLH < 2.0V and T < 85 C VL: 2.0V < VOLH < 3.3V(Vcc) and T < 85 C VL: T > 85 C
Condition of Cooling Fan Operation
The cooling fan will stop or rotate under the following conditions. Thermal Sensor Temperature(T) 0V 60 C STOP 0.4V STOP 2.0V MID HIGH HIGH HIGH SPEED SPEED SPEED SPEED MID HIGH HIGH SPEED SPEED SPEED 70 C 80 C Note: �VOLH=0.4V� is equivalent to 0.8W(8 ohm, 7 ch) �VOLH=2.0V� is equivalent to Max power(8 ohm, 3 ch)
STOP
LOW MID SPEED SPEED
|
|
|
> |
|
