Changhong Electric 34T18, Service Manual, Page: 54 / 61

SERVICE MANUAL
52
13 Not connected 0
∞ ∞
14 Negative loudspeaker terminal 2 7.3 ∞ ∞
15 Ground channel 2 0 0 0
16 Supply voltage channel 2 14.8 3.5 3.5
17 Positive loudspeaker terminal 2 7.3
∞ ∞
Table 15 Functions and Service Data of TDA6107Q/TDA6108JF (NY01)’s Pins
Digital Multimeter
Pin No.
Function Description
Reference Voltage
(V)
Positive Resistance
(20K
Ω
)
Negative Resistance
(20K
Ω
)
1
G inverting input 3.33 5.32 4.72
2
R inverting input 3.26 5.32 4.72
3
B inverting input 3.28 5.32 4.72
4
Ground 0.00 0.00 0.00
5
Black level current input 6.03 18.65 5.65
6
Supply voltage 199
∞
4.48
7
B output 69.9
∞
5.45
8
R output 69.18 ∞ 5.45
9
G output 65.9
∞
5.45
Table 16 Functions and Service Data of TC90A49P (N501)’s Pins
Digital Multimeter
Pin
No.
Functions Description Reference Voltage
(V)
Positive
Resistance (20K
Ω
)
Negative
Resistance (20K
Ω
)
1
ADC and DAC analog power
supply.
4.98 0.55 0.54
2
ADC bias voltage. Stabilize by
attaching a 0.01µF capacitor.
1.41
∞ ∞
(Continued)