1. परिचय
This manual provides detailed instructions for the proper use and maintenance of your Sandberg Pocket Radio FM+AM Recharge, Model 421-02. Please read this manual thoroughly before operating the device to ensure optimal performance and longevity.
2. उत्पादन संपलेview
The Sandberg Pocket Radio is a compact, portable device designed for receiving FM and AM radio broadcasts. It features a built-in rechargeable battery and a digital display for easy tuning.

आकृती 1: समोर view of the Sandberg Pocket Radio, displaying the frequency and controls.

Figure 2: The radio connected to the included earphones, which also function as the FM antenna.
पॅकेज सामग्री:
- 1 x Sandberg Pocket Radio FM+AM Recharge (Model 421-02)
- 1 x इअरफोन
- 1 x Charging cable (USB-A to USB-C, 50 cm)
3. सेटअप
3.1 बॅटरी चार्ज करणे
- Connect the small end of the included USB-C charging cable to the charging port on the radio.
- केबलचा मानक USB-A टोक USB पॉवर अॅडॉप्टर (समाविष्ट नाही) किंवा संगणकाच्या USB पोर्टशी जोडा.
- The radio's display will indicate charging status. A full charge typically takes a few hours.
- Disconnect the charging cable once the battery is fully charged.
३.२ इअरफोन कनेक्ट करणे
The included earphones are essential for operation as they serve as the antenna for FM reception. Without them, FM reception will be severely limited or non-existent.
- Insert the 3.5mm jack of the earphones into the earphone port on the radio.
- कनेक्शन सुरक्षित असल्याची खात्री करा.
4. ऑपरेटिंग सूचना
4.1 पॉवर चालू/बंद
- रेडिओ चालू करण्यासाठी, दाबा आणि धरून ठेवा Power/Mode (ⓘ/M) button for approximately 2-3 seconds. The display will light up.
- To power off the radio, press and hold the Power/Mode (ⓘ/M) button again for approximately 2-3 seconds. The display will turn off.
4.2 Mode Selection (FM/AM)
- While the radio is powered on, short press the Power/Mode (ⓘ/M) button to switch between FM and AM radio bands. The current band will be indicated on the display.
६.२ ट्यूनिंग स्टेशन्स
- स्वयंचलित स्कॅन: To automatically scan for and store available stations, press and hold the Search (⌕) button. The radio will scan through the frequency range and save stations with strong signals.
- मॅन्युअल ट्यूनिंग: To manually tune to a specific frequency, short press the वर (▲) or खाली (▼) buttons to adjust the frequency incrementally.
4.4 आवाज नियंत्रण
- व्हॉल्यूम वाढविण्यासाठी, दाबा आवाज वाढवा (+) बटण
- व्हॉल्यूम कमी करण्यासाठी, दाबा आवाज कमी (-) बटण
4.5 माहिती प्रदर्शित करा
The digital display shows the current radio band (FM or AM), the tuned frequency, and the battery level indicator.
5. देखभाल
5.1 स्वच्छता
- रेडिओचा बाहेरील भाग मऊ, कोरड्या कापडाने पुसून टाका.
- Do not use abrasive cleaners, solvents, or strong chemicals, as these can damage the surface.
- कोणत्याही छिद्रांमध्ये ओलावा जाण्यापासून टाळा.
5.2 बॅटरी काळजी
- बॅटरीचे आयुष्य वाढवण्यासाठी, वारंवार बॅटरी पूर्णपणे डिस्चार्ज करणे टाळा.
- जास्त काळ वापरात नसताना रेडिओ थंड, कोरड्या जागी ठेवा.
- बॅटरी जास्त काळ साठवून ठेवल्यास ती वेळोवेळी रिचार्ज करा जेणेकरून खोल डिस्चार्ज होणार नाही.
6. समस्या निवारण
- शक्ती नाही: Ensure the battery is charged. Connect the radio to a power source using the USB-C cable.
- आवाज नाही: Check that the earphones are securely plugged in. Adjust the volume using the आवाज वाढवा (+) बटण
- खराब एफएम रिसेप्शन: Ensure the earphones are fully plugged in, as they function as the FM antenna. Try repositioning the radio or the earphone cable for better signal.
- Cannot Save Favorite Stations: This model does not support saving favorite radio stations. Stations are found via automatic scan or manual tuning each time.
- डिस्प्ले काम करत नाही: If the display is blank or flickering, try recharging the battery. If the issue persists, contact customer support.
7. तपशील
| वैशिष्ट्य | तपशील |
|---|---|
| मॉडेल क्रमांक | 421-02 |
| एएम वारंवारता श्रेणी | 522-1710 KHz (9KHz) / 520-170KHz (10KHz) |
| एफएम वारंवारता श्रेणी | 76-108 MHz |
| AM संवेदनशीलता | <20mV/m |
| FM Signal to Noise Ratio | >40db |
| कमाल आउटपुट पॉवर | 6.5mW |
| बॅटरी क्षमता | 5000 mAh, 3.7V (1.85 Wh) |
| कनेक्टिव्हिटी तंत्रज्ञान | Auxiliary (for earphones/antenna) |
| उर्जा स्त्रोत | बॅटरी पॉवर्ड |
| आयटम वजन | 60 ग्रॅम (2.12 औंस) |
8. हमी आणि समर्थन
Sandberg products are manufactured to high quality standards. For information regarding warranty terms and conditions, or for technical support, please refer to the official Sandberg webसाइटवर किंवा त्यांच्या ग्राहक सेवेशी थेट संपर्क साधा. खरेदीचा पुरावा म्हणून तुमची खरेदी पावती ठेवा.