|
|
|
Who's Online
There currently are 5759 guests online. |
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Excellent replacement for original Manual. Worth every cent ! I am totally satisfied!
;
Only in this place I could find this manual. Very complete and very clear. PDF is a very good quality and easily read. Thank you. I was very useful.
Videoson & ltd.
;
It is great, it saves money and paper. It helps me to save room and recources.
;
manual service is ok , resolve the problems
manual service is ok , resolve the problems
manual service is ok , resolve the problems
manual service is ok , resolve the problems
manual service is ok , resolve the problems
 ;
Well I got all the necessary specifications for the job. Document of good quality and good definition of the diagrams
HT-R820THX OPERATION CHECK-4
OUTPUT LEVEL & THERMAL DETECTION
<Operation check of microprocessor by test mode>
The following is the procedure of checking detection operation of a microprocessor in false, by using test mode.
Output level detection
1. Set the unit to test mode " Test-3-3 " 1-1. Press and the hold down the CD button , then press the STANDBY/ON button when the unit is Power On.
Te st - _
1-2. Press the VIDEO 2 button, while the " Test - _ " is shown. Unit will be in the state of " Test-3-00 ".
Te st - 3- 00
1-3. Repeat and press SPEAKERS B button to the " Test-3-3 " is shown.
Te st - 3- 03
2. Apply signal (sine wave 1kHz, -1.5dBV) to MULTI CHANNEL (FL, FR, SL, SR, C) terminal, each channel. 3. Check that FM STEREO indicator is shown.
FM STEREO
FM STEREO
Test - 3-0 3
4. Press the STANDBY/ON button to power Off. (Exit from the test mode.)
Thermal detection 1. Set the unit to test mode " Test-3-3 " Refer to the clause of " Output level detection ". 2. Connect the resistor 1.8kohms /1W between " HT2 " and " COM " terminals of P6301.
P6301 1.8 kohms 1W
TH1 TH2 COM
COM TH2 P6301
TH1
Front side
U16 NAAF-8245
POWER AMPLIFIER PC BOARD
3. Check that FM STEREO indicator is shown.
MEMORY
MEMORY
Test - 3-0 3
4. Press the STANDBY/ON button to power Off. (Exit the test mode.)
|
|
|
> |
|
