RCA MCR51R410, Service Manual

Page: 20 / 43

SERVICE MANUAL
Pin Function Pin Function
1 Audio Output 54 SIF Input
2 FM Output/Selected Audio Output 53 SIF APC Filter
3 PIF AGC 52 SIF Output
4 RF AGC Output 51 Ext. Audio Input
5 PIF Input1 50 APC Filter
6 PIF Input2 49 VCO Coil 1
7 IF Ground 48 VCO Coil 2
8 IF Vcc 47 VCO Filter
9 FM Filter 46 Video Output
10 AFT Output 45 Black Level Detector
11 Bus Data 44 Internal Video Input (S-C IN)
12 Bus Clock 43 Video/Vertical Vcc
13 ABL 42 External Video Input (Y In)
14 Red Input 41 Video/Vertical Bus Ground
15 Green Input 40 Selected Video Output
16 Blue Input 39 Chroma APC1 Filter
17 Fast Blanking Input 38 4.43MHz Crystal
18 RGB Vcc 37 Clamp Filter
19 Red Output 36 Chroma APC2 Filter
20 Green Output 35 SECAM R-Y Input (Cr input)
21 Blue Output 34 SECAM B-Y input (Cr input)
22 Fsc output/C-Sync output 33 CCD/Horizontal Ground
23 Vertical Output 32 CCD Filter
24 Ramp ALC Filter 31 CCD Vcc
25 Horizontal/Bus Vcc 30 Clock (4MHz) Output
26 Horizontal/AFC Filter 29 VCO IREF
27 Horizontal Output 28 Flyback Pulse Input
b. LA76818A Pin Assignment
19