Toshiba 21E88 Service Manual page 42

36 IF VCC 5 V
37 S-Reg.F
38 Deemph/
Audio out
39 IF AGC
40 IF GND
41 IF IN
42
43 RF AGC
44 YC VCC 5 V
45 Monitor out
46 Black Det
47 APC Fil
(Chrome PLL filter)
48 IKin
49 RGB VCC
9 V
50 ROUT
51 GOUT
52 BOUT
53 TV AGND
SERVICE MANUAL
VCC terminal for IF circuit.
Supply 5 V.
Terminal to be connected capacitor for stabilizing internal bias.
Terminal to be connected capacitor for SIF Det
De-Emphasis.
Terminal to be connected with IF
AGC filter.
GND terminal for IF circuit.
Input terminals for IF signals.
Pin 41 and Pin 42 are both input poles of differential amplifier.
Output terminal for RF AGC control level.
VCC terminal for Y/C circuit.
Supply 5 V.
Output terminal for CVBS or Y signal selected by BUS (video
SW).
Terminal to be connected with
Black Det filter for
black stretch.
Terminal to be connected with
APC filter for Chroma demodulation.
This terminal voltage controls frequency of VCXO.
Input terminal to sense AKB cathode current.
VCC terminal for RGB circuit.
Supply 9 V.
Output terminal for R signal.
Output terminal for G signal.
Output terminal for B signal.
GND terminal for Analog block.
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