Brand: SAMSUNG
Category: Home Cinema
Document Type: Parts/Service
Language: EN
Parts/Service for MAX-B420
Uploaded: Nov. 21, 2025, 8:16 p.m.
The manual provides detailed information on the alignment and adjustment of the tuner section (FM THD, FM Search Level, AM(MW) I.F) and cassette deck (tape speed, playback level, bias voltage). It also includes wiring diagrams, printed circuit board diagrams for various sections (Main, Front, Tuner, CD/MP3), and detailed parts lists for the entire system, including exploded views. Specific adjustment procedures are outlined with corresponding test equipment and expected results.
Troubleshooting and error codes
| Circuit to be Adjusted | Measuring Instrument & Step | S.S.G Frequency Setting | Radio dial Setting | Adjusting Point | Adjust for | |
|---|---|---|---|---|---|---|
| AM (MW) OSC | Connect AM signal generator to loop antenna, VTVM AND oscilloscope (Fig 1-3) | 1 522KHz | 522KHz | MW OSC | Adjust for 1.0V±0.1V at the low. (IR117) | |
| RF | - | 2 1611KHz | 1611KHz | MW OSC | Check for 7.0V±1.0V at the high. (IR117) | |
| - | - | 1 | 594KHz | MW ANT | Maximum out | |
| LW OSC | Fig 1-3 | 1 | 455KHz | 522KHz | TL2 | Adjust for 2.0V±0.1V at the low. |
| RF | - | 1 | 146KHz | 290KHz | LW OSC | Check for 7.0V±1.0V at the high. |
| LW ANT | Maximum out | |||||
| SW1 OSC | Maximum out | |||||
| SW1 OSC | Adjust for 1.0V±0.1V at the low. | |||||
| SW1 OSC | Adjust for 1.0V±0.1V at the low. | |||||
| SW1 ANT | Maximum out | |||||
| SW2 OSC | Adjust for 1.5V±0.1V at the low. | |||||
| SW2 ANT | Maximum out |