Cell phone NOKIA3210. Let's see what parts are there

 

Today I will disassemble the board from the NOKIA 3210 cell phone. On the board there is an inscription: GF7_20B 9854307 and also S0101a. On the board of this phone there are interesting electronic components on which you can assemble radio transmitting devices. I will tell you about this

PMB2353 is the processor for this phone

4370351-unknown

EPCOS B7103 is a SAW filter 71MHz, as well as EPCOS 4693 RX filter 1800MHz, EPCOS 4109 is a SAW filter for a frequency of 1747.5 MHz, EPCOS 7604.

232-2 this 1800MHz TX IF filter

670L 6pin TX amplifier?

PF01420B  -900MHz power amplifier GSM

PF04110B -1800MHz power amplifier DCS

White ceramic parts are possible ceramic directional couplers

K1747 in metal case, possibly RF combiner

Two light metal cases are voltage-controlled oscillators. FDK IM013B and FDK IN068. On the first one you can assemble a radio transmitter for frequencies of 1860-2140 MHz and on the other one 438-485 MHz. The frequencies are reconfigured by applying different voltage to the control input. I provide the connection diagram for IN068 in the figure. Apply an audio signal to output 6 and the radio transmitter is ready.

chip 1210T-TEA1210T DC/DC converter

NMP70719 - power management chip

NMP0581 - power supply chip

EC61 5pins -ESDA6V1SC5- ESD protection

NMP70433- controlling Keyboard and LCD backlight

V257B 4370643-Audio Codec

KYOCERA KEU28L-VCTCXO 13MHz

HWYN202A-900MHz duplexer

F160B3TA-flash memory

MAD2PRI-microcontroller

K6T1008U2E-CMOS SRAM 128Kx8 bit

24C128N-EEPROMs 128K