FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W

Hanrongda Electronic Co. Ltd.; Shenzhen

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Country
People's Republic of China

Manufacturer / Brand
Hanrongda Electronic Co. Ltd.; Shenzhen

Year
2024 ?

Category
Broadcast Receiver - or past WW2 Tuner

Radiomuseum.org ID
356404

Picture
Schematics

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070485) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (3)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070486) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (3)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070477) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (1)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070481) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (1)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070480) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (1)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070478) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (1)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070479) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (1)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070482) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (1)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070483) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (1)

FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W; Hanrongda Electronic (ID = 3070484) Radio — Hanrongda Electronic FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W (1)

Click on the schematic thumbnail to request the schematic as a free document.

Technical Specifications

Number of Transistors
Semiconductors present.

Semiconductors

Main principle
DSP, Digital Signal Processor

Wave bands
Broadcast, more than 2 SW bands plus FM or UHF.

Details
HD or solid state memory

Power type and voltage
Batteries / addl. power jack / Li-Ion 3.7 / USB 5 Volt

Loudspeaker
Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 cm = 1.6 inch

Power out
1.6 W (unknown quality)

Material
Plastics (no bakelite or catalin)

from Radiomuseum.org
Model: FM Stereo AM/SW PLL Radio MP3 BT REC Player K-603 K603BT-W - Hanrongda Electronic Co. Ltd.;

Shape
Very small Portable or Pocket-Set (Handheld) < 8 inch.

Dimensions (WHD)
120 x 79 x 23 mm / 4.7 x 3.1 x 0.9 inch

Notes
The HRD K-603 is world band digital pocket radio, recorder, BT, and MP3 player.

Main specifications
- FM band: 64-108 MHz
- MW band: 522-1710 kHz (9 kHz), or 520-1710 (10 kHz), selectable
- SW band: 4.75-21.85 MHz(nine meter bands)
- 440 radio presets (auto-scan and direct entry)
- Sleep timer
- BT version 5.0
- MP3/WMA/WAV format music player
- Recorder from buitl-in microphone, from 3.5 mm Aux Line in, or from radio
- 3.5mm stereo headphone jack
- MicroSD card slot up to 32 GByte
- BL-5C 1000 mAh rechargeable lithium battery
- Charging: DC 5 V, USB-C interface
Brief technical description

The PCB assembly reference is K603BT-W 2024.1.8

This is the latest (yaer 2024) version with a redesigned circuit and PCB layout.

Firmware version v2.4.

The radio uses a AKC6958 DSP and a S9018 front-end transistor. A MIX2018 audio power amplifier drives the built-in 3Watt 4 Ohm speaker. A CN2C14B5A media controller by A3 and a P42473 TJ25008M flash memory handles BT, MP3 functions and radio management. The battery charger uses just a current limiter based on a power diode and 1R0 resistor.

Net weight (2.2 lb = 1 kg)
0.150 kg / 0 lb 5.3 oz (0.33 lb)

Author
Model page created by Jose Mesquita. See "Data change" for further contributors.

Other Models
Here you find 5 models, 5 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Hanrongda Electronic Co. Ltd.; Shenzhen

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The model FM Stereo AM/SW PLL Radio MP3 BT REC Player is part of the collections of the following members.

Jose Mesquita (P)

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