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Great PDF easy to read good info needed for replacment of belts and assembly and specs.
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complete and unabridged very good quality
easy to download.
recieved in two days.
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Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
Allgemeiner Teil / General Section
CUC 7303
Korrektur
Der folgende Abgleich Nr.2 für die Schirmgitterspannung ersetzt entsprechenden Abgleich im Service-Manual 720100261000, Seite 3-1. Abgleich 2. Schirmgitterspannung UG2 Vorbereitung Graubalken-Testbild einspeisen. Bildschirmhelligkeit so einstellen, dass die Abstufung vom dunkelsten Graubalken zu schwarz gerade noch sichtbar ist, ca. 2,7V an IC150-(17). Kontrast: Minimum An den Messpunkten R, G, B (auf der Bildrohrplatte) Oszilloskop anschlie�en und den höchsten Schwarzwertpegel ermitteln. Abgleichvorgang Mit Regler UG2 (Splittrafo) an dem Messpunkt mit dem höchsten Schwarzwert eine Spannung von 110V�115V für14"-Bildröhren und von 145V�155V für 15"�21"-Bildröhren einstellen.
Schwarzwert
110V�115V 14" 145V�155V 15"...21"
Correction
The following adjustment No. 2 for the Screen grid voltage substitutes the adequate adjustment in the Service Manual 720100261000, page 3-2. Adjustment 2. Screen grid voltage UG2 Preparation Feed in a grey scale test pattern. Adjust the screen brightness so that the gradation from the darkest grey scale value to black is just still visible (2.7V to IC150-(17)). Contrast: Minimum Measure test points R, G, B (on the CRT panel) to determine the test point with the highest black level and connect this point to the oscilloscope. Adjustment Procedure With the control UG2 (Splitt Transformer) adjust the black level at the test point with the highest black level to 110V�115V for14" picture tubes and 145V�155V for 15"�21" picture tubes.
Black level
110V�115V 14" 145V�155V 15"�21"
4
GRUNDIG Service
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