Tandy 26-3334 Service Manual page 3

6
.
Keyboard Problems
56
No Keyboard Entry/Wrong Character
56
6.4 Process ing Problem
56
6.5 Cassette Problems
56
Motor Control Problem
56
Write Problem
56
Read
Problem
56
6.6 RS-232C Problem
57
6.7 Sound Problem
57
6.8
Joystick Problem
57
6.9 Cartridge Problem
57
6.10 Power Supply Check
58
NTSC Vers ion
58
PAL Version
61
6.11 Major Waveforms
64
NTSC Vers ion
64
PAL Version
70
SECTION VII.
512K EXPANSION RAM CARD
PCB VIEWS
78
ELECTRICAL PARTS LIST
79
SECTION VIII. NTSC VERSION
PCB VIEWS
82
ELECTRICAL PARTS LIST
84
EXPLODED VIEW PARTS LIST
90
EXPLODED VIEW
91
SEMICONDUCTOR INFORMATION
93
SCHEMATIC DIAGRAM
103
SECTION
IX.
PAL
VERSION
PCB VIEWS
1
08
ELECTRICAL PARTS LIST
1 1
EXPLODED VIEW PARTS LIST
1
19
EXPLODED VIEW
121
SEMICONDUCTOR INFORMATION
122
SCHEMATIC DIAGRAM
126
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