General Information - Pioneer DBR-T210GBS Service Manual

7. GENERAL INFORMATION

7.1 IC
• The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.
•
List of IC
TDA6190X, TA1297AFN, SQC6100, STI5512MWE, CXA2161R, CS4335-KS, HIN202CBN, 73K324BL-IH,
AMC2442ACV(0.84), PE5181A
TDA6190X (MAIN ASSY : IC1001)
• TV IF IC
•
Block Diagram
•
Pin Function
No. Pin Name
1 TAGCthr Tuner AGC threshold; delayed tuner AGC adjust input ; if not required,connect to reference voltage Vref
2 TunAGC Delayed Tuner AGC output; open NPN transistor collector
3 Vs Supply voltage
4 IFGnd IF input Ground
5 IF1 IF input IF1; balanced to IF2
6 IF2 IF input IF2; balanced to IF1
7 Gnd Ground
8 IFAGC IF AGC filter; automatic gain control filter pin, low voltage corresponds to maximum gain
9 OUT2 Buffered mixer output OUT2; balanced to OUT1
10 OUT1 Buffered mixer output OUT1; balanced to OUT2
11 OSCGnd Oscillator Ground
12 VCOb1 VCO base 1; balanced to VCOb2
13 VCOe1 VCO emitter 1; balanced to VCOe2
14 VCOe2 VCO emitter 2; balanced to VCOe1
15 VCOb2 VCO base 2; balanced to VCOb1
16 Vref Reference voltage
1
TAGCthr
TunAGC 2
VS 3
IFGnd 4
IF1
5
Amp
IF2 6
7
Gnd
AGC
IFAGC 8
DBR-T210GBS, DBR-T210GBP
Tuner
AGC
OSC
Mixer
Function
DBR-T210GBN
16
Vref
15 VCOb2
14 VCOe2
13 VCOe1
12 VCOb1
11 OSCGnd
10
OUT1
9 OUT2
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