to the sets specified on page 2. This Manual describes the differences and the additionally fitted Components of the TV Receiver pecified on page 2. The individual modules of the sets are listed in the module list on page 6 / 7. Basic instructions for servicing are given in the: –Service Manual CUC 2103 M CUC 2121 M (Part number 720100407000) –Service Manual Safety (Part number 720108000000) Table of Contents Page Corrections ... 2 Notes ... 4 List of Modules – Service Manual with Supplements ... 5 Module List ... 6 Technical Data ... 8 CRT Panel 293051223700 / 3900 ... 12 Spare Parts Lists ... 14

Table of Contents Page Notes ... 3 Hints of Service and Special Functions ... 4 List of Modules – Service Manual with Supplements ... 4 Module List ... 5 Technical Data ... 8 Chassis Board ... 12 Oscillograms (Chassis) ... 17 Chassis Board (Enlarged) ... 19 Circuit Diagram Mains Section ... 23 Circuit Diagram Deflection Section ... 25 Circuit Diagram Processor Section ... 27 Circuit Diagram Tuner 29 Variant Equipment Video ... 29 Circuit Diagram Video Section ... 31 Circuit Diagram Audio ... 33 CRT Panel 293051223700 / 3800 ... 35 Module Mains Unit 12V ... 37 Processing Board 293052191600 / 2500 / 2600 / 3000 / 3300 / 3700 / 4100 / 4200 ... 41 Spare Parts Lists ... 44

This supplement shows the differences concerning the Service Manuals and supplements listed in the table on page 2 and 3. Basic instructions for servicing are given in the: – Service Manual (see Page 2 and 3) – Supplements (see Page 2 and 3) – Service Manual “Safety” (Part number 720108000000) Table of Contents Page List of TV Receiver 2 Notes ... 4 Hints of Service and Special Functions ... 4 Spare Parts Lists ... 5

The Service Manual CUC 2121 applies to the sets specified on the front page. This supplement describes the differences and the additionally fitted Components of the sets. Basic instructions for servicing are given in the: –Service Manual CUC 2121 (Part number 720100407000) –Service Manual “Safety” (Part number 720108000000) Table of Contents Page Notes ... 2 List of Modules – Service Manual with Supplements ... 3 Module List ... 4 Technical Data ... 5 Hint for Alignment ... 6 Chassis Board ... 7 Oscillograms (Chassis) ... 13 Chassis Board (Enlarged) ... 15 Circuit Diagram Mains Section ... 19 Circuit Diagram Deflection Section ... 21 Circuit Diagram Processor Section ... 23 Circuit Diagram Tuner ection ... 25 Circuit Diagram Video Section ... 27 Circuit Diagram Audio Section ... 29 CRT Panel ... 31 AF Module Stereo ... 33 EURO-AV Socket Board ... 37 Processing Board ... 39 Spare Parts Lists ... 42