Sony Ericsson that have tx-rx connection

Sony Ericsson that have tx-rx connection:

2218z,
A2618s, A2618sc, A2628s, A2628sc,
F500, F500i,
J200c, J200i, J300a, J300c, J300i,
K300a, K300c, K300i, K500c, K500i, K506c, K508i, K600, K608i, K700, K700c, K700i,
P800, P802, P900, P908, P910a, P910c, P910i,
R300d, R300LX, R300z, R310s, R310sc, R320s, R320sc, R380e, R380sc, R380s, R380WORLD, R520LX, R520m, R520mc,
S700c, S700i, S710a,
T200, T202, T20e, T20ec, T20s, T20sc, T238, T28s, T28sc, T28z, T28WORLD, T290a, T290c, T290i, T292a, T29s, T29sc, T300, T306, T310, T312, T316, T39m, T39mc, T60c, T60d, T608, T60LX, T610, T61c, T61d, T616, T618, T61LX, T61z, T628, T62u, T630, T637, T65, T68, T68i, T68ie,
V600i, V800,
Z1010, Z500a, Z502a, Z600, Z608, Z800i.

for J200i, J210i, J300i, K300i, K700, K700i, S700, S700i, F500, F500i, K500, K500i, T616, T628, T637, P800, P802, P900, P908, P910, T200, T202, T226, T226s, T230, T238, T290, T292, T300, T302, T306, T310, T312, T316, T20, T28, T29, T36, T39m, T39mc, R520, R520m, R520mc, T65s, T60c, T62u, T68i, T68m, T68mc, T68ie, z1010, T100, T102, T105, T106, T66, T600, R600, R600s, R600sc, A2618, A2628, A3618, Z200, Z300, Z500i, Z600, Z608, Z1010, S700, V600i, V800
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Pin
Name Direction Description
1 ATMS Audio to mobile
2 AFMS/RTS Audio from mobile/RTS (connected to GND in cable?)
3 CTS/ONREQ CTS/Mobile Station On REQuest (connected to GND in cable?)
4 data in Data to mobile (Rx). (Tx for K300i)
5 data out Data from mobile (Tx). (Rx for K300i)
6 ACC in Accessory control to mobile. Used as Rx in some models (i.e. T68) for flashing.
7 ACC out Accessory control from mobile/handsfree sense. Used as Tx in some models (i.e. T68) for flashing.
8 AGND Audio signal ground + 0V reference
9 flash Flash memory voltage + Service (shorted to pin 11 in service cable)
10 DGND Digital ground
11 Vcc DC + for battery charging + External accessory powering

Pinout by Cruiser team:

Pin Signal Description
1 ATMS
2 AFMS
3 CTS_ON
4 DTMS
5 DFMS
6 CTMS
7 CFMS
8 AGND
9 VPPFLASH
10 DGND
11 DCIO

CTMS stands for Control To Mobile Station; CFMS stands for Control From Mobile Station; DTMS stands for Data To Mobile Station; DFMS stands for Data From Mobile Station

Standard cable is Sony Ericsson DCU-11

 

The (Tx)&(Rx) are reverse for K300i model, you must connect CTS & DGND together on board and connect the common wire to CTS(Pin3) in phone connector. If your cable is working fine then dont change it.

Essential toolkit from iFixIt

Love this toolkit. Nice packaging, tools seem quality made and should last more that one disassembly. Nice job iFixIt!

iFixIt tool kit
iFixIt tool kit
iFixIt tool kit
iFixIt tool kit
iFixIt tool kit
iFixIt tool kit

Kit Includes:
Custom iFixit Bit Driver
Angled Precision Tweezers
Spudger
Jimmy
iFixit Opening Tool
iFixit Opening Picks set of 6
Suction Handle
Easy-to-Open Magnetized Case
Lid with Built-in Sorting Tray
Sixteen 4 mm Precision Screwdriver Bits:
Phillips – 000, 00, 0, 1
Pentalobe – P2, P5
Flathead – 1, 2.5, 4 mm
Torx – T4, T5
Torx Security – TR6, TR8, TR10
Tri-Point – Y000
SIM Eject Bit

Making an adjustable “lab” power supply from scrap

Had an old power supply board lying around that was ripped from dead/old printer. PSU model is CZ57PSE EPSON

C257PSE

To make it work one should connect PSC line to ground.

Schematics of similar power supply:

CZ57PSE schematics
CZ57PSE schematics

To regulate output, made an adjustable voltage regulator using LM2575 that was ripped of some dead router or something similar:

lm2575
lm2575

Finished power supply in a box:

Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply
Regulated power supply