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Sinclair QL Manuel de service Page 31
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Table des matières
MARQUE LIVRES
Noté
.
/ 5. Basé sur
avis des utilisateurs
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FI
GU
R
E C3 I
SS
UE
6 BOAR
D -
S
OLDE
R
SI
D
E (
SRL/
EI
/1119-1)
1
2
...
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Sinclair QL Service Manual
2
SECTION 1
3
SYSTEM DESCRIPTION
3
DS R/W D0-D7
4
Function Code Output
4
Cycle Type
4
FC2 FC1 FC0
4
5. MEMORY ORGANISATION
7
7. MICRODRIVE
8
8. POWER SUPPLIES
9
FIGURE 1.3 QL BLOCK DIAGRAM
10
SECTION 2
11
DISASSEMBLY/ASSEMBLY
11
2. ASSEMBLY
12
SECTION 3
13
SYSTEM TEST
13
3.5 RS232C Loopback Test
14
3.2 Colour Test
14
3.3 Sound Test
14
3.4 Network Test
14
3.6 Keyboard Test
15
3.7 Joystick Test
15
3.8 Real-Time Clock Test
15
3.9 Microdrive 2 Test
15
3.10 Microdrive 1 Test
16
3.12 End of Test
17
SECTION 4
18
FAULT DIAGNOSIS AND REPAIR
18
2. FAULT DIAGNOSIS
19
F1...MONITOR
20
F2...TELEVISION
20
© 1983 Sinclair Research Ltd
20
SYMPTOM REMEDY
22
2.5 Video
23
2.6 Fault-Finding Guide
23
3. REPAIR
24
4. FIRMWARE UPGRADE
24
FIGURE 4.2 KEYBOARD FORMAT
25
FIGURE 4.3 HEAD CHASSIS
25
APPENDIX A TO SECTION 4
26
KNOWN BUGS AND THEIR REMEDIES
26
1. MONITOR CONNECTIONS
26
2. KNOWN BUGS
26
3. PRINTING PROBLEMS
27
4. SER OUTPUTS
28
5. HOW TO CURE A CRASHING QL
28
6. FLICKERING DISPLAYS
28
APPENDIX B TO SECTION 4
29
USER HINTS
29
APPENDIX C TO SECTION 4
30
MANDATORY MODIFICATIONS
30
APPENDIX D TO SECTION 4
32
MICRODRIVE FAULT FINDING
32
3.4 Erase Check
33
340 PAUSE 50
34
350 SAVE ser1
34
360 END DEFine
34
SECTION 5
36
PARTS LISTS
37
4. NOTES TO TABLES
38
Description Manufacturer/Type
39
Circuit Ref
39
MDV1 MDV2
39
Table of Contents
44
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