CUC 2058 D / 2059 DAbgleich / Alignment
GB Alignment
Attention!
After any repair or replacement of NVM (IC82005) check whether the NTSC 3.58MHz quartz is fitted. If it is not, the dialog line "NTSC 3,6" in the Service
Menu must be set to "off".
Button "6" �> "OK" �> "SERVICE" �> "OK" �> Service Code "8500" �> NTSC 3,6 "off" and in dialog line "End" store the setting "with mem.".
Notes!
1. When changing the IRDT module no matching is necessary.
2. The TV receivers with IRDT Module can also be operated without this module. When operating these TV sets without the IRDT module, the
connector ST-PIP3 to the YUV interface is to be detached. When using the Cinch inputs, the connector ST-CI1 on the keyboard is to be connected
to the connector ST-CI1 on the chassis board. In this way, the TV set works only in analog mode.
All adjustment controls not mentioned in this description are pre-set at the factory and must not be re-adjusted in the case of repairs.
Chassis / CRT Panel
Measuring instruments: Dual-channel oscilloscope, 10:1 test probe, digital voltmeter, colour video generator, spectrum analyser or RF millivoltmeter
Service works after replacement or repair of the following modules:
- Power supply: alignment 1
- Tuner: alignment 2
- NVM IC82005: alignment 2�8, 11
- Horizontal and vertical deflection and replaced picture tube: alignment 10�12
- Bridge Coil L53074: only necessary in the case of inexpert manipulation of the horizontal deflection: alignment 9
AlignmentPreparations Alignment Process
1. +A voltageThis voltage must be checked and re-adjusted if necessary Adjust R60037 or R61313 acc. to the table (page 3-18) on
after every repair and before every alignment.the power supply circuit diagram.
Brightness: Minimum
Digital voltmeter: Cathode D61016
2. Tuner AGCSpectrum analyser or RF millivoltmeter symmetrical to Adjust 102dBmV (360mVpp) with button "V -" or "+ C".
tuner contact 10, 11.
Feed in a standard test pattern or generator via the aerial, Alternatively, without using a spectrum analyser or RF
70�80dBmV.millivoltmeter, adjust the picture with button "V -" or "+ C"
so that noise just appears on the screen. Then reset until
Call up the dialog line "AGC" via "6" (DIALOG CENTER) �> the picture is again free of noise.
"OK" �> SERVICE �> "OK" �> Service Code "8500".
Dialog line "End", terminate "with mem".
3. OSDCall up the dialog line "OSD" via "6" (DIALOG CENTER) �> With button "V -" or "+ C" position the menu in the
"OK" �> SERVICE �> "OK" �> Service Code "8500".middle of the picture.
Dialog line "End", terminate "with mem.".
4. TubeCall up the dialog line "Tube" via "6" (DIALOG CENTER) �> With button "V -" or "+ C" enter the correct screen
(Type of picture"OK" �> SERVICE �> "OK" �> Service Code "8500".diagonal.
tube)
Dialog line "End", terminate "with mem.".
5. OverscanOnly for IC TDA8843 or TDA8844 as well as with Philips Set to "off" with button "V -" or "+ C".
picture tubes 72cm/84cm in 4:3 and 70cm/82cm in 16:9
format.Dialog line "End", terminate "with mem.".
Call up the dialog line "Overscan" via "6" (DIALOG
CENTER) �> "OK" �> SERVICE �> "OK" �> Service Code
"8500".
6. NTSC 3.6Call up the dialog line "NTSC 3,6" via "6" (DIALOGSet to "off" or "on" with button "V -" or "+ C" dependent
CENTER) �> "OK" �> SERVICE �> "OK" �> Serviceon the type of television receiver.
Code "8500".
Dialog line "End", terminate "with mem.".
7. Vertical SlopeCall up the "Vertical Slope" menu via "6" (DIALOG CENTER) Adjust the center line of the test pattern in the dialog line
�> "OK" �> SERVICE �> "OK" �> Service Code "8500" �> "Vertical Slope" (typ. 30�33) with button "V -" or "+ C"
"GEOMETRY"so that it is just still visible.
Press button "6" twice (GEOMETRY �> SERVICE) and
terminate the dialog line "End" with "with mem.".
The picture geometry is adjusted to the value last stored
whenever the TV set is switched on.
GRUNDIG Service2 - 3 |
ACEC
