Grundig TK 54 Tape Recorder Service Manual
Service manual for the Grundig TK 54 tape recorder. Contains mechanical assembly section covering tape transport mechanism, belt drive configuration, coupler adjustments, fast forward/rewind functions, and brake system. Includes electrical measurements and response curves (playback and recording), measurement circuit diagrams, and technical specifications. Bottom cover shows detailed mechanical component views including the tape transport assembly and internal mechanical arrangements.
Table of Contents:
- Recording sockets TK 120/140
- Input impedances are over 100 kΩ single-ended
- Amplification
- Input sensitivity
- Microphone/radio input
- Headphone output
- Regulator and switches
- Amplification verification
- For a voltage drop of 100 mV at input, the following voltages are required at the microphone/radio input
- Test voltage at headphone output
- Voltage measurement is also performed on the EM 84 controller
- Frequency measurement
- Frequency measurement is performed at the radio microphone input
- At 66 Hz frequency
- At 12,000 Hz frequency
- The peak value of the frequency response is at 12,000 Hz
- Intermediate values see attenuation curves Appendix
- Maximum permissible input voltage
- Input at 100 kΩ closed
- Input at short circuit
- With incorrect HF pre-magnetization and discharge voltage setting at headphone output
- Final stages
- The measurement is performed with feedback parallel to a load resistance of 5 Ω ± 2%
- Input impedance
- Distortion factor and clipping factor
- At 333 kHz an output voltage of a clipping factor is required
- Frequency response
- A control voltage of 100 mV at 3.2 kHz of the radio input
- At 1000 Hz frequency
- Just at the sound regulator dark (12,000 Hz) a voltage of
- Remote voltage
- Remote voltage must be maintained
- Loudspeaker impedance regulator to
Documentation must be downloaded on a computer (PC, Mac, or Linux).
Do not use a smartphone or tablet to download documentation; they generally lack sufficient memory capacity to handle large files, and few users know how to locate the download folder on these devices.
Once downloaded, you can use it right away and even print the pages you need, or use your smartphone in photo mode to translate into the language of your choice: Google Translate
Document Details
- Format
- Pages
- 23
- Size
- 3.5 MB
- Category
- Audio & HiFi