10
Sound:
n
Mono sound control by analogue voltage
Service Mode:
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System configuration with service mode
PINNING
PIN VALUE
1. Crystal selection output 1
: LOW level : 0V
HIGH level : 4.2V
2. switch input
: LOW level : 0V
HIGH level : 5V
3. Volume - switch input
: LOW level : 0V
HIGH level : 5V
4. Program - switch input
: LOW level : 0V
HIGH level : 5V
5. P switch input:
: LOW level : 0V
HIGH level : 5V
6. LED output
: LOW level : 0V
HIGH level : 4.2VDC
7. Filter (sound standard) selection output 1
: LOW level : 0V
HIGH level : 4.2V
8. Filter (sound standard) selection output 2
: LOW level : 0V
HIGH level : 4.2V
9. Mod-switch selection output
: LOW level : 0V
HIGH level : 4.2V
10. Ground
11. Supply voltage
: +5V
12. 6 MHz crystal connection 1
: 2Vpp
13. 6 MHz crystal connection 2
: 2Vpp
14. L-ACC output
: LOW level : 0V
HIGH level : 3.6V
15. RESET output
LOW level : 0V
HIGH level : 5V
16. Comb filter PAL/SECAM selection output
: LOW level : 0V
HIGH level : 5V
17. Tuning output
: LOW level : 0V
HIGH level : 3.4V
18. Audio switch transistor selection 1
: LOW level : 0V
HIGH level : 5V
19. Audio switch transistor selection 2
: LOW level : 0V
HIGH level : 5V
20. Audio switch transistor selection 3
: LOW level : 0V
HIGH level : 5V
21. Audio switch transistor selection 4
: LOW level : 0V
HIGH level : 5V
22. Comb filter standard selection 1
: LOW level : 0V
HIGH level : 5V
23. Comb filter standard selection 2
: LOW level : 0V
HIGH level : 5V
24. Analogue ground
25. Filter 3
26. Filter 2
27. Filter 1
28. Analogue supply voltage
: 5VDC
29. Reference current input
30. CVBS input
: 1Vpp
31. Service output
: LOW level : 0V
HIGH level : 5V
32. AV2-status input
: LOW level : 0V
HIGH level : 5V
33. AV1-status input
: LOW level : 0V
HIGH level : 5V
34. AFC output
: 600mVpp
35. Ground
36. IR-input
: LOW level : 0V
HIGH level : 5V
37. Supply voltage
: 5V
38. LC input
: 5Vpp
39. LC output
: 5Vpp
40. Mute output
: LOW level : 0V
HIGH level : 4.2V
41. St-by output
: LOW level : 0V / HIGH level : 1.4V
42. Clock signal output
43. Data output
44. Local connection
: LOW
: 0V / HIGH : 5V
45. SAND input
: 4Vpp
46. ODD/EVEN output
: 1.8V
47. OSD-red output
: LOW level : 0V / HIGH level : 5V
48. OSD-green output
: LOW level : 0V / HIGH level : 5V
49. OSD-blue output
: LOW level : 0V / HIGH level : 5V
50. OSD-blanking output
: LOW level : 0V / HIGH level : 5V
51. COR output
: LOW level : 0V / HIGH level : 5V
52. Crystal selection output 2
: LOW level : 0V / HIGH level : 4.2V
Содержание EU-34HT
Страница 1: ...SERVICE MANUAL EU 34HT 34cm CTV Effective January 1999 EU34HTSERV ...
Страница 19: ...18 GENERAL BLOCK DIAGRAM OF CHASSIS AK26 ...
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