Lenovo Thinkpad S1 Schematics
ENE KB9022
on
LA-A342P ZIPS3
Contents
1 Introduction 1
1.1 Prologue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Keyboard Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2 Preparation 2
2.1 Partlist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.2 Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.3 Cable Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.4 Remove Batteries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.5 Download Pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3 Flashing 6
3.1 Set Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3.2 Select Motherboard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Read ID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.4 Read KB9022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.5 Write KB9022 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
4 Rewrite Information 12
5 Question and Answers 13
6 Files 14
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1
LA-A342P 1 INTRODUCTION
1 Introduction
1.1 Disclaimer
USE THIS DOCUMENT AT YOUR OWN RISK
PLEASE BE AWARE THAT ANY INFORMATION YOU MAY FIND IN THIS
DOCUMENT MAY BE INACCURATE, MISLEADING, DANGEROUS, ADDICTIVE,
UNETHICAL OR ILLEGAL.
Some information in this document may create an unreasonable risk for readers who
choose to use the information. The Author do not take any warranties about the
completeness, reliability and accuracy of this information. Any action you take upon the
information in this document is strictly at your won risk, and the Author will not be
liable for any losses and damages in connection with the use of this document.
1.2 Prologue
This How-to will instruct you how to read and write the ENE KB9022 keyboard controller on the
LA-A342P motherboard.
This process will clear every information in the bios. If you don‘t know how to restore UUID / SERIAL
do not do this!
1.3 Keyboard Controller
ENE’s Keyboard Controller series is a highly integrated embedded controller (EC) with 128Kb
embedded flash for laptop platform. It appeals for low power consumption and best-in-class
performance to satisfy customers’ demand.
The system support functions include:
8051 MCU, LPC interface, PS/2 interface, Keyboard matrix encoder, PWM, A/D converter, D/A
converter, Fan controller, SMBus interface, GPIO, PECI, one wire master, SPI and ENE Serial Bus.
ENE’s Keyboard Controller Series includes:
KB901X, KB902X, KB903X, KB373X.
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LA-A342P 2 PREPARATION
2 Preparation
2.1 Partlist
• SOFTWARE
Windows7 64Bit
SVOD3 1.0.3.6
• PROGRAMMER
SVODprogrammer ver 3
• CABLES
1x 0,5 mm Pitch 32 Pin AWM 20624 flex ribbon cable FFC
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LA-A342P 2 PREPARATION
2.2 Pinout
You need ENE_KSI7, ENE_KSI6, ENE_KSI4, ENE_KSI5 and ENE_KSO3. Ground can be
obtained from any usb ports.
JKB1 PIN #02 −→ KSI7
JKB1 PIN #03 −→ KSI6
JKB1 PIN #05 −→ KSI4
JKB1 PIN #06 −→ KSI5
JKB1 PIN #18 −→ KSO3
USB PORT −→ GND
Figure 1: JBK keyboard connector
Figure 2: JKB1 32pin 0,5mm port closer look
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LA-A342P 2 PREPARATION
2.3 Cable Alignment
A small problem is the original JKB1 connector on the motherboard itself. The edge on both sides is a
bit wider than normal. You need to align the cable correct.
Figure 3: Center the cable and align pin 1!
2.4 Remove Batteries
Figure 4: Main Battery.
Unscrew and remove the main battery.
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Unplug the CMOS battery.
Figure 5: CMOS Battery.
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