IBM ThinkPad 701 Series User Manual

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Symptom/Error FRU/Action

LCD screen unreadable or

characters missing pels.

1. See important note

for “LCD FRU

Replacement Notice”

on page 124.

2. LCD Assembly

3. System Board

LCD too dark, unable to

adjust contrast or

brightness.

1. LCD

2. Video Card

LCD slightly dims when

changing to battery power.

1. Normal operation

(Dimming of LCD

conserves battery

power.)

LCD unreadable, illegible, or

distorted.

1. LCD

2. Video Card

3. System Board

LCD cannot be powered-on

or off.

1. Video Card

2. System Board

3. Voltage Converter

Blank screen, or extra

horizontal or vertical lines

displayed on upper or lower

half of the LCD with no

beep or one short beep.

1. LCD

2. Video Card

3. System Board

System status indicator is

incorrectly blinking or stays

on.

1. System Board

2. Related Device

3. Indicator Assembly

System status indicator

stays off, but the POST

ends without an error.

1. System Board

2. Related Device

3. Indicator Assembly

No keys on the keyboard

work.

See “1080 Keyboard Unit”

on page 54.

1. Keyboard Control

Card

2. Keyboard

3. External Keyboard or

Numeric Keypad (if

attached)

4. System Board

Keypad problems. 1. Reseat cable

2. External Keypad

3. Keyboard Control Card

4. System Board

One or more keys do not

work.

1. See “1080 Keyboard

Unit” on page 54

before replacing any

FRUs.

2. Keyboard

3. External Keyboard or

Numeric Keypad (if

attached)

4. Keyboard Control Card

90 IBM Mobile Systems HMM

Questions and Answers:

M
Marcia EstradaAug 4, 2025
What to do if the TV Tuner on my IBM Laptop does not operate (no picture or sound)?
- B
  brownkristenAug 4, 2025
  If the TV Tuner on your IBM Laptop isn't working, here are a few things to check: * Make sure your computer is powered on and not in suspend mode. * Verify that the volume control of the TV Tuner or computer is properly adjusted. * Ensure the TV Tuner is receiving power. * Check that the wall outlet for the outdoor antenna is active. * Confirm that the video or antenna cable is correctly connected. * Adjust the antenna elements of the active antenna unit. * Make sure the batteries in the active antenna unit are correctly inserted and not depleted. * Verify that the TV Tuner is set up correctly. * Note that you cannot watch TV or videos on the external display. * LO is set for the auto tune sensitivity selection.

IBM ThinkPad 701 Series Specifications

General

Category	Laptop
Release Year	1995
Display Resolution	640x480
Model	ThinkPad 701 Series
Processor Speed	75 MHz
Display	10.4" TFT LCD
Operating System	Windows 95
Keyboard	Butterfly Keyboard
Ports	Serial, Parallel, VGA
Expansion Slots	1 Type II or 1 Type III PCMCIA
Processor	Intel 486DX4
Weight	4.5 lbs (2.0 kg)