|
|
|
Categories
|
|
Information
|
|
Featured Product
|
|
|
 |
|
|
There are currently no product reviews.
 ;
Excellent high quality schematics brought my old Heidelberg back to life. Fast download at a reasonable price. Thanks.
;
This document is just what I was looking for, it´s very useful, it contains adjustment procedures for the final stage of the power amp and also
has a complete wiring diagram and description of the main semiconductors used in the design.
;
Dear Sirs,
Thank you for the fast support, the manual does provide all necessary information to repair the radio. All schematics are in a good quality for reading.
The manual fits 100% to my requirements as a technican.
Kind regards Thomas
;
the big video recorder format s-vhs many features delicate in loading system of the cassette. Such machines are no longer manufactured, it would be too expensive.
 ;
THIS MANUAL IS VERY GOOD AND VERY CLEAR
PLEASE NOTE IT DOES NOT CONTAIN THE SETUP INFORMATION TO ALIGHN THE GEARS IN THE CD MECH IT DOES SHOW ALL THE PARTS AND THEIR LOCATIONS .
PURITY ADJUSTMENT ADJUSTMENT PRECAUTION
NO. Adjustment part Adjusting procedure conditions Waveform and others 1 PURITY ADJ. 1. Receive GREEN-ONLY signal. Adjust the beam current to about 700 µA. 2. Degauss CRT enough with the degausing
Make sure TV set is in �NORMAL CONDITION� before switch to service mode for Adjustment.
PIF ADJUSTMENT
a b NO. Adjustment part Adjusting procedure conditions Waveform and others coil.
netic field and keep the static convergence (PRESET) but with no signal input. roughly adjusted. Adjust the PLL data. through microscope. Adjust the landings to the tuner antenna. (RF SWEEP) 3. Adjust the sweep generator's to 80dBuV. » Tightening torque: 108N ± 20 N the tuner's IF output terminal. (This terminal Fig. 1 to A rank requirement.
1 Tuner IFT 1. Get tuner ready to receive the E-9 signal, 3. Maintain purity magnet at the zero mag10k 1n60 1000p 4. Observe the points a, b, as shown in Fig. 1-1 2. Connect the sweep generator's output cable
Oscilloscope IF OUT
Fig. 1-1
100k 75ohm
4. Connect the response lead (use LOW IMPED5. Orient the raster rotation to 0 eastward. (11kgf ± 2 kgf) must have the probe alone connected). A
ANCE probe with wave detector; see Fig.1) to 6. Tighten up the deflection coil screws. 7. Make sure CRT corners landing meet the 5. Set the RF AGC to 0 6 V with no saturation
P C 6. Adjust tuner IF coil to obtain the waveform sheet to correct it.
E-9 CH
A rank requirements. If not, stick the magnet with the waveform.
as shown in Fig. 2. Note:This adjustment must be done after -1.5+/-0.8dB warming up the unit for 30 minutes or longer with a beam current over Note: Be sure to keep the tuner cover in 700 µA position during this adjustment. * For the following colours press R/C RGB key to Rank "A" change. (on right of the CRT)
Green-only Blue-only Red-only
B A = B
Fig. 2
Fig. 1-2
2 RF-AGC 1. Receive "PAL COLOUR BAR" signal. Note:
7
The loss of using impedance adapter Fig. 1-3 Fig. 3 in NORMAL MODE, the colour
A TAKE OVER » Signal Strength: 57 ±1 dBµV (75 open) For the 50 ohm signal strength
POINT 2. Connect the oscilloscope to TP201 (Tuner�s gauge, when not using 50/75 Signal-colour ADJUSTMENT impedance adapter, signal screen cleared AGC Terminal) as shown in Fig. 3. (I C BUS strength is 52 ±1 dBµV(75 ohm B2 CONTROL) open), instead of 57 ±1 dBµV
Oscilloscope + TP201 (75 ohm open). A = B 0.1V � Precaution:
Bias box TV Set
+
Rank "A" (on left of the CRT)
�
» Bias box: About 4.5 V
* Press R/C RGB key for 1 second will change to RGB mono colour
3. Call "AGC" mode in service mode. Adjust the mode.
4. Change the antenna input signal to colours screen.
The TEXT "R. G. Cy" Key can "AGC" bus data to obtain the Tuner output pin drop 0.1 V below maximum voltage. be directly use change to other
63~67dBµV, and make sure there is no noise.
5. Turn up the input signal 90~95 dBµV to be
sure that there is no cross modulation beat.
15E1-FRU
7-1 7-2
|
|
|
> |
|
