Teac EU-34TB, Service Manual

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10
Sound:
n Mono sound control by analogue voltage
Service Mode:
n 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