T A B L E 6 -1
T R O U B L E S H O O T IN G G U ID E (CONTINUED)
C ondition
Possible Cause
Recommended A ction
W i l l n o t w r it e .
D is k e tte is w r it e p ro te c te d .
I n s t a ll w r it e ta b on d is k e tte .
In te r fa c e n o t e n a b le d .
V e r if y w r it e e n a b le , s e le c t, a n d
w r it e d a ta in te r fa c e lin e s .
H e a d (s ) o r w r it e p r o te c t sensor
n o t c o n n e c te d .
C h e ck C o n n e c to rs P8, P 9, a n d
P IO .
W r it e p r o te c t se n so r f a u lt y .
C h e ck w r it e p ro te c t se n so r
o p e ra tio n .
D e fe c tiv e w r it e lo g ic .
R e p la c e L o g ic c ir c u it b o a rd .
D e fe c tiv e h e a d (s ).
R e p la c e H e a d C a rria g e
A s s e m b ly .
W i l l n o t re a d .
In te r fa c e in c o r r e c t.
V e r if y s e le c t is tr u e a n d w r it e
e n a b le is fa ls e .
A lig n m e n t o ff.
V e r if y R a d ia l T r a c k a lig n m e n t
in d e x p u ls e , a n d T r a c k 0 sensor
a d ju s tm e n t.
D e fe c tiv e re a d e le c tro n ic s .
R e p la c e L o g ic c ir c u it b o a rd .
D e fe c tiv e h e a d (s ).
R e p la c e H e a d C a rria g e
A s s e m b ly .
N o T r a c k 0
in d ic a tio n .
D e fe c tiv e seek.
See: W i l l n o t seek o r re s to re .
T r a c k 0 s e n s o r n o t loose o r
d is c o n n e c te d .
C h e c k P l l .
T r a c k 0 s e n s o r n o t a d ju s te d .
A d ju s t T r a c k 0 sensor.
D e fe c tiv e lo g ic .
R e p la c e L o g ic c ir c u i t b o a rd .
D e fe c tiv e T r a c k 0 sensor.
R e p la c e T r a c k 0 S ensor
A s s e m b ly .
6-3
Summary of Contents for 6000 HD
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Page 3: ...TANDY COMPUTER PRODUCTS SERVICE MANUAL TANDY 6000 6000 HD Catalog Number 26 6021 2...
Page 8: ...TANDY COMPUTER PRODUCTS...
Page 14: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 6...
Page 28: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS Figure 4 1 Adjustments 20...
Page 30: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 22...
Page 32: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 24...
Page 64: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 60...
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Page 117: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 116...
Page 124: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS Table 7 5 Input Output Port Map 125...
Page 127: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS Table 7 6 Memory Map 128...
Page 141: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 142...
Page 151: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 152...
Page 152: ...Service Manual TANDY COMPUTER PRODUCTS TANDY 6000 6000 HD 153...
Page 153: ...Service Manual TANDY COMPUTER PRODUCTS TANDY 6000 6000 HD 155...
Page 154: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 1 5 7...
Page 155: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 159...
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Page 157: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 163...
Page 161: ...Service Manual TANDY COMPUTER PRODUCTS TANDY 6000 6000 HD Figure 7 11 Timing Diagram 168...
Page 182: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 189...
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Page 206: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 2 1 6...
Page 207: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 217...
Page 225: ...Service Manual TANDY 6000 6000 HD TANDY COMPUTER PRODUCTS 236...
Page 226: ...Service Manual TANDY COMPUTER PRODUCTS TANDY 6000 6000 HD 237...
Page 228: ...Service Manual TANDY COMPUTER PRODUCTS TANDY 6000 6000 HD 241...
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Page 266: ...FIGURE 1 1 DISK DRIVE...
Page 268: ...2 2...
Page 279: ...FIGURE 3 2 CONTROL AND DATA TIMING REQUIREMENTS 3 7...
Page 283: ...FIGURE 3 3 LSI CIRCUIT BOARD ASSEMBLY 3 11...
Page 289: ...FIGURE 3 5 DISKETTE CARE AND HANDLING 3 17...
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Page 294: ...FIGURE 4 4 INTERCONNECT BLOCK DIAGRAM 4 4...
Page 295: ...FIGURE 4 6 TRACK O TIMING 4 5...
Page 304: ...FIGURE 5 2 TIMING DISK FIGURE 5 3 HUB CENTER LINE AND TRACK LOCATION 5 4...
Page 337: ...FIGURE 6 19 HEAD CARRIAGE 6 25...
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Page 373: ...FIGURE 3 5 RADIAL CONFIGURATION 3 7...
Page 374: ...FIGURE 3 6 DAISY CHAIN CONTROL LINES...
Page 382: ...FIGURE 3 11 RECOMMENDED SHIPPING PACK DESIGN CONFIGURATION 1...
Page 383: ...FIGURE 3 11 CONTINUED RECOMMENDED SHIPPING PACK DESIGN CONFIGURATION 1 3 17...
Page 384: ...FIGURE 3 12 RECOMMENDED SHIPPING PACK DESIGN CONFIGURATION 2 3 18...
Page 385: ...FIGURE 3 13 RECOMMENDED SHIPPING PACK DESIGN CONFIGURATION 3 3 19...
Page 386: ...FIGURE 3 13 CONTINUED RECOMMENDED SHIPPING PACK DESIGN CONFIGURATION 3 3 20...
Page 387: ...FIGURE 3 14 LOAD GRAPH 3 21...
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Page 390: ...FIGURE 4 1 TEST POINT LOCATIONS...
Page 394: ...o FIGURE 4 3 READ DATA WAVEFORMS 15 TPR AND 14 TPR o 4 6...
Page 397: ...FIGURE 4 4 INDEX SENSOR 4 9...
Page 400: ...FIGURE 4 6 TRACK 0 ADJUSTMENT 4 12...
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