REPORT NO : HCT-F02-1104 FCC ID : N5ZDN308 DATE : NOVEMBER 12, 2002 ATTACHMENT E. - USER’S MANUAL HYUNDAI CALIBRATION & CERTIFICATION TECHNOLOGIES CO., LTD.
REPORT NO : HCT-F02-1104 FCC ID : N5ZDN308 DATE : NOVEMBER 12, 2002 Service Manual (DN-308) Table of Contents 1. Outline 2. Features 3. Specification 4. Circuit Description 4-1. Main Board 4-2. Key Block 4-3. RX Receiver Rev 1.0 HYUNDAI CALIBRATION & CERTIFICATION TECHNOLOGIES CO., LTD.
REPORT NO : HCT-F02-1104 FCC ID : N5ZDN308 DATE : NOVEMBER 12, 2002 Federal Communications Commission Requirements Warning : Changes or modifications not expressly approved by the party responsible for compliance with the FCC’S rules could void the user's authority to operate the equipment. Because of the limited space on the model DN-308 Digital Voice Recorder case, the notice of Compliance with FCC Rules is printed here Dyne Telecom Co.
REPORT NO : HCT-F02-1104 FCC ID : N5ZDN308 DATE : NOVEMBER 12, 2002 1. Outline The Digital Voice Recorder (DN-308) - The Voice Recorder that can save (compression) and play the voice - Smallest size, easy to carry - Control the unit with Wireless Remote controller (REC/STOP keys) 2.
REPORT NO : HCT-F02-1104 FCC ID : N5ZDN308 DATE : NOVEMBER 12, 2002 3 . Digital Voice Recorder & Receiver Specification 3-1. Digital Voice Recorder Recording Time Recording System Number of Message Voice Freq. Bandwidth Maximum output Speaker Input External Connection Earphone Jack Power Supply Battery Life Dimension Weight DN 308(LP:250Min, SP:125Min) Flash Memory Max.400 350Hz~4KHz 80mW or more(16Ω Speaker) Built-in 28mm round dynamic speaker 3.5mm mini-jack, impedance 16Ω Built-in Microphone 3.
REPORT NO : HCT-F02-1104 FCC ID : N5ZDN308 DATE : NOVEMBER 12, 2002 4. Circuit Description DN 308 unit consists of three circuit boards; Main board, and Key board. The Main board is the core of the unit whereas other boards are simple,1that is, the Key board has only contact switches. 4-1.
REPORT NO : HCT-F02-1104 FCC ID : N5ZDN308 DATE : NOVEMBER 12, 2002 4-1-3. Memory Block Model Flash Memory(Nand Type) Manufacture DN 308 8Mbyte x 8bit(64Mbit) Samsung/Toshiba Flash memory on the memory block is used to store the voice data. DN 308 is only different from the memory size. The table below shows the memory device for each model. 4-1-4. Audio block - Mic. Amp Input audio signal from the built-in microphone or external microphone is amplified by this block and sent to the CODEC IC.
REPORT NO : HCT-F02-1104 FCC ID : N5ZDN308 DATE : NOVEMBER 12, 2002 DC/DC Converter DC/DC Converter IC(IC4) is a PWM power generator, which is used to supply the stable 3VDC power with the CPU, DSP, etc. 4-2. Key Block There are 6 keys on the Logic board. They are tied each other on the data bus(Matrix structure). The CPU reads the data bus and checks which key is pressed. 4-3. RX Receiver RX Receiver Designed to get the High ‘Q’ on the Carrier Frequency 315.
