IBM PCjr Manual page 143

SECTION 6. TESTING YOUR IBM
PC/r
Contents
Introduction 6-3
First Things First 6-5
Error Message Table 6-17
Running the IBM PC/'r Tests 6-21
Service Information 6-37
Test Tag 1 - Diskette Drive Test 6-39
Test Tag 4 - Television and 40-CoIumn Display
Test 6-45
Test Tag 8-80 Column Display Test 6-55
IBM Color Display Check Out Procedure 6-69
Test Tag 5 - Light Pen Test 6-83
Test Tag 6 - IBM PCjr Attachable Joystick Test . 6-87
Test Tag 9 - Sound Test 6-93
Test Tag J - IBM PCyV Keyboard Test 6-103
Test Tag G - IBM PCjr Internal Modem Test .. 6-111
Testing Your IBM PC/> 6-1