|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
I was at first dubious about payiong for downloaded manuals but having done so, I was extremely impressed with quality of the two manual I ordered, well worth the small price I paid.
I would highly recommend these to my friends.
;
reasonable price for the schematic - the service is perfect, all as expected and pointed by instructions - good scan of the original plans - thank you!
;
Manual was just as described!!! I odered it and in less than a day was able to download it and the text was clear and pages were all complete just as the original manual was. Purcashed this for a friend and they were more than happy. Perfect all around!
 ;
Excellent service and prompt delivery. But it's not a manual - only 4 pages wiring diagrams.
Thanks.
;
The manual I purchased was exactly what I needed to repair my Toshica television. The manual contained schematics and troubleshooting information that was very helpful.
No 43
Name PHI-1 FILTER
Description The loopfilter connected to pin 43 is suitable for various signal conditions as strong/weak and VCR signal. This is achieved by switching of the loopfilter time constant by changing the PHI-1 output current. Via I2C bus FOA/B, different time constants can be chosen, including an automatic mode which gives optimal performance under varying conditions. To this pin are connected the IC-substrate and horizontal output. The EW drive is a current output. The output is single-ended and is fed directly to the EW-input terminal The vertical drive has a current output. The output is balanced which ensures a good common mode behavior with temperature and makes the output signal less sensitive for disturbances. The PLL frequency range is 32-60MHz with corresponding VCO frequency 64-120MHz. The IF input impedances is 2 in parallel with 3pF and matches the required load for commonly used SAW filters. A DC coupling is allowed, so no series capacitors between SAW filter and IF input are necessary. The input range for EHT tracking is 1.2 ~ 2.8V, for a compensation of +/- 5% on vertical and/or EW. The tracking on EW can be switched on/off by HCO. The overvoltage protection is activated when the voltage on pin 50 exceeds 3.9V typical. This pin requires a capacitor to ground of l00nF +/- 5%. The optimal sawtooth amplitude is 3.5V and is determined by the external capacitor and charge current. The sawtooth bottom-level is 2V. This pin requires a resistor to ground. The optimal reference current is 100 . which is determined by this resistor. The AGC capacitor value is 2.2 and has been defined for an optimal compromise between AGC speed and tilt for all AGC modes (negative/positive modulation). This output is used to control (reduce) the tuner gain for strong RF signals. The tuner AGC is an open collector output which is acting as a variable current source to ground. not used. This pin requires a capacitor of 10 connected to ground. The pin acts as a low pass filter needed for the DC feedback loop.
44 45 46 47 48 49
GROUND EAST-WEST DRIVE VERT DRIVE + VERT DRIVE IF INPUT
50
EHT/OVERVOLTAGE PROTECT INPUT
51
VERT SAWTOOTH CAPACITOR REFERENCE CURRENT INPUT AGC DECOUPLING CAPACITOR
52 53
54
TUNER AGC OUTPUT AUDIO DEEMPHASSIS DECOUPLING SOUND DEMODULATOR
55 56
20
|
|
|
> |
|
