Super manual it contains all the things you need to service your Marantz 2100.
Text excerpt from page 8 (click to view)
2.3. HOW TO MOVE THE CHASSIS INTO SERVICE POSITION 1. Hold and lift the rear of the chassis and gently pull the chassis towards you as shown in Fig. 3 2. Release the respective wiring clips and draw out main chassis. 3. After servicing replace the bead clamper and ensure all wiring is returned to its original position before returning the receiver to the customer.
2.4. Service Position for DG-Board
Note: Extension cable kit for DG Board is supplied as service fixtures and tools. (Part No. TZSC07024)
3. Self Check
1. Self-Check is used to automatically check the bus lines and hexadecimal code of the TV set.
2. To get into the Self-Check mode, press the down n (-/ ) button on the customer controls at the front of the set, at the same time pressing the HELP button on the remote control and the