RCA MCR51R410, Руководство по обслуживанию

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SERVICE , MANUAL
Table 3 Functions and Service Data of LC86F3448A (D701)’s Pins
GDM8145 Multimeter
Ground Resistance (k )
Pin No.
Function Description
Voltage of
Pin (V)
Measure with red
probe while
grounding black
probe. Measure with
black probe while
grounding red
probe.
1 Not connected 1.50 11.8 4.40
2 Not connected 1.43 12.1 5.20
3 Bus data line 4.70 11.6 6.20
4 Bus clock line 4.47 12.1 6.00
5 Ground 0.00 0.00 0.00
6 Input terminal for clock oscillating signal 1.78 12.6 5.1
7 Output terminal for clock oscillating signal 2.88 12.0 4.91
8 Supply voltage 5.31 7.90 3.72
9 Button-control voltage input terminal 1 0.02 9.70 5.34
10 AFT voltage input terminal 2.47 4.90 5.08
11 X-RAY detection input 2.25 6.70 4.59
12 Button-control voltage input terminal 2 0.015 8.86 3.81
13 Reset 5.27 4.67 1.88
14 Character oscillating filter 3.87 1.11 4.98
15 Video signal input terminal 3.53 12.3 4.50
16 Three bits input/output terminals 0.01 9.76 15.0
17 Input terminal for vertical flyback pulse 5.07 15.4 18.1
18
Input terminal for horizontal flyback
pulse 4.62 17.4 18.4
19 R character output terminal 0.015 3.92 3.29
20 G character output terminal 0.014 3.95 3.71
21 B character output terminal 0.015 3.19 3.66
22 Output terminal for fast blanking signal 0.015 6.50 3.67
23 Mute 0.015 18.7 17.62
24 Standby control 0.015 1.43 7.30
25 Not connected 1.23 9.50 6.65
26 Control terminal for production modes 4.61 13.0 6.95
27 Degaussing circuit control 0.014 3.713 3.42
28 Remote control signal input 5.19 12.2 5.32
29 Not connected 5.30 12.4 5.49
30 Not connected 5.30 12.6 5.42
31 Not connected 0.01 12.7 5.35
32 Not connected 0.01 12.7 5.30
33 Output terminal for on/off control signals 5.30 12.7 6.59
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