|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
This is a good quality scan of the Operation & Maintenance (Service) Manual for the PAL version of this high-band broadcast umatic, BVU-800P
All schematics and lineup procedures appear to be included in this one manual AFAICT.
The file size is just over 113 MB which gives an idea of the quality and number of pages.
All of the schematics, which contain some fairly small print, are easily readable when you zoom into the page.
John Thompson, Newcastle Upon Tyne, England.
;
Good quality, all schematics of few of models. There is also short form of user manual and regulation manual.
;
Perfect copy of the service manual. you can enlarge every page, and it comes up
with all details.
;
It´s very very nice manual with all, what i need. Original in good quality. Very fast business. Very much thanks...
;
Purchased the manual that I was looking for at a great price and could download it easily.. Great service experience and for future purchases I plan to use the site.
Thank you very much
SECTION 4 ELECTRICAL ADJUSTMENTS
0 dBm = 0.775 V BASE UNIT
� Make the set in test mode. (See page 7.) � TX Adjustments and Checks � 1. TX VCO Check Setting:
digital voltmeter
deviation meter
7. Check that the value of power meter is �5.5 dBm ± 1.5 dBm. 4. Modulation Sensitivity Adjustment Setting:
AF OSC 600 � LINE jack (J1)
+ �
1 kHz, �20 dBm
+ �
TP (TX VCO), TP (RX VCO) TP (GND)
+ �
TP (ANT) TP (GND)
Procedure: 1. Connect a digital voltmeter to TP (TX VCO), TP (RX VCO) and TP (GND) on the BASE RF board. 2. Check that both TP (TX VCO) and TP (RX VCO) voltage of digital voltmeter are 0.8 V to 2.2 V. 3. Set the [DIAL MODE] switch (S2) to the [TONE] position. 4. Press the [HANDSET LOCATOR] key (S1) three times to change the channel to 40CH. 5. Check that both TP (TX VCO) and TP (RX VCO) voltage of digital voltmeter are 0.8 V to 2.2 V. 6. Press the [HANDSET LOCATOR] key (S1) once to change the channel to 1CH. 7. Check that both TP (TX VCO) and TP (RX VCO) voltage of digital voltmeter are 0.8 V to 2.2 V. 2. TX Frequency Adjustment Setting:
frequency counter + � TP (ANT) TP (GND)
Procedure: 1. Connect an AF OSC to the LINE jack (J1) on the BASE MAIN board. 2. Connect a deviation meter to TP (ANT) and TP (GND) on the BASE MAIN board. 3. Set the [DIAL MODE] switch (S2) to the [PULSE] position. 4. Press the [HANDSET LOCATOR] key (S1) once to change the test mode step to TX MOD CHECK. 5. Adjust RT3 on the BASE MAIN board so that the value of deviation meter becomes 8 kHz ± 0.5 kHz. 5. Distortion and S/N Ratio Check Setting:
AF OSC 600 � LINE jack (J1)
+ �
1 kHz, �20 dBm
distortion meter
Procedure: 1. Connect a frequency counter to TP (ANT) and TP (GND) on the BASE MAIN board. 2. Restart the test mode to change the channel to 19CH. 3. Adjust CT1 on the BASE MAIN board so that the value of frequency counter becomes 926.897468 MHz ± 600 Hz. 3. TX Power Adjustment Setting:
power meter + � TP (ANT) TP (GND)
+ � noise meter
TP (ANT) TP (GND)
+ � CCITT: on
Procedure: 1. Connect a power meter to TP (ANT) and TP (GND) on the BASE MAIN board. 2. Adjust RT301 on the BASE RF board so that the value of power meter becomes �5.5 dBm ± 1 dBm. 3. Set the [DIAL MODE] switch (S2) to the [TONE] position. 4. Press the [HANDSET LOCATOR] key (S1) three times to change the channel to 40CH. 5. Check that the value of power meter is �5.5 dBm ± 1.5 dBm. 6. Press the [HANDSET LOCATOR] key (S1) once to change the channel to 1CH.
Procedure: 1. Connect a distortion meter and noise meter to TP (ANT) and TP (GND) on the BASE MAIN board. 2. Check that the value of distortion meter is less than 4%. 3. Check that the value of noise meter, and record it. 4. Stop outputting the signal of AF OSC. 5. Check that the value of noise meter again. And check that difference of level between in step3 and in step5 is less than 30 dB.
10
|
|
|
> |
|
