Daewoo DTH-25G1FST/FSP/FS, Service Manual

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♦
I501
- TB1238N (IF + VCD P RO CESS O R)
1. P in Description
27 V S Y N C - Sync. Signal for Vertical position
- 0 ~ 5V pulse
-D etect input-A ctive Low
27 V S Y N C - Sync. Signal for Vertical position
- 0 ~ 5V pulse
-D etect input-A ctive Low
28
29 O S C 1
O S C 2 O SD oscillator
30 G N D G round
31
32 X IN
X O U T 8M H z X -TAL input/output
33 R E S E T - SY S T EM R eset(H ardw are R eset) input term inal
- Active Low
34 50/60H z 50/60H z
35 IR IN R EM O T E C O NT R O L signal input term inal
36 M S D Tim er counter input
37 SC L
I
2
C bus serial clock input/output
38 SD A
I
2
C bus serial data input/output
39 P34(S C L0)/P 57 G round
40 P35(S D A 0)/P 32(IN T 4) G round
41 S M U T E S ound m ute
42 VD D + 5V
PIN NA ME FUNCTION REM ARK
1 D e-Em phasis T he term inal to be connected with capacitor for deem phasis.
2 A udio O utput N .C
3 IF V
CC
(9V ) T he term inal for V cc of P IF circuit.
4 A FT O utput T he term inal for A FT output and Self-adj. O utput.
5 IF G N D T he term inal for G N D of P IF circuit.
6
7 IF Input
IF Input T he term inal for IF signal input.
8 R F AG C T he term inal for R F A G C output (open collector O utput).
9 IF A G C T he term inal to be connected with an IF A G C filter.
10 A P C F ilter T he term inal to be connected with A P C filter for chrom a dem odulation.
11 X tal T he term inal to be connected with a 4.433619M H z Xtal oscillator.
12 Y /C G N D T he term inal for G N D of Y /C circuit.
PIN NAME FUNCTION REMARK
IC DESCRIPTION