Service Data Of Key Ics - Changhong Electric 21NF55 Service Manual

3. KEY ICS SERVICE DATA
Table 10
Pin
No.
1 P1.3/T1
2 P1.6/SCL
3 P1.7/SDA
4 P2.0/TPWM
5 P3.0/ADC0/PWM0
6 P3.1/ADC1/PWM1
7 P3.2/ADC2/PWM2
8 P3.3/ADC3/PWM3
9 VSSC/P
10 P0.5
11 P0.6
12 VSSA
13 SECPLL
14 VP2
15 DECDIG
16 PH2LF
17 PH1LF
18 GND3
19 DECBG
20 AVL/EWD (1)
21 VDRA
22 IFIN1
23 IFIN2
24 IREF
25 TUNERAGC
26 AUDEEM/SIFIN1(1)
27 DECSDEM/SIFIN2 (1)
28 GND2
29 VSSA
30 SECPLL
31 SNDPLL/SIFAGC(1)
32 AVL/SNDIF/REF0/AMOUT(1)
33 HOUT
34 FBISO
SERVICE MANUAL
Function and Service Data of TDA9351PS/N2/3I (N100)' s Pins
Symbol
Digital Multimeter : Victor DT890D
Reference Positive
Voltage (V) Resistance
(KΩ)
3.8
3.4
3.0
1.8
0.1
0.1
0.02
0.7
0
0.01
4.2
0
2.3
8.0
5.0
3.2
3.9
0
4.0
0.01
2.4
2.4
1.8
1.8
3.8
3.8
1.6
3.2
2.3
0
2.3
0.2
0.4
0.5
37
Nerative
Resistance
(KΩ)
9.5 9.5
6.8 6.8
6.8 6.8
36.2 17.9
11.8 12.3
5.0 5.0
13.5 13.5
10.7 9.3
0 0
13.3 13.3
11.6 11.0
0 0
27.6 21.7
1.8 1.8
23.1 16.1
27.5 `21.0
27.9 21.2
0 0
24.4 18.7
27.6 21.2
27.6 20.4
27.6 20.3
24.7 19.8
24.7 19.9
25.3 20.5
27.7 21.5
8.4 8.4
27.1 20.7
27.8 21.6
0 0
27.8 21.8
27.2 20.4
5.3 5.3
24.0 18.8
(continued)