Samsung HLR5078WX, Руководство по обслуживанию

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Circuit Description
Samsung Electronics 13-5
S1/S2/S3-Y
S1/S2/S3-C
Comb-Y-Out
Comb-C-Out
STNR-CVBS
DTV-CVBS
V1/V2
Side-V
MTNR-CVBS
Video
Matrix S/W
6 in, 8 out
Adder
Tri-State
TEA6425
(IC148)
Y/C SW
Video
Matrix S/W
6 in, 8 out
Adder
Tri-State
TEA6425
(IC146)
Video SW
UPD64083
(IC128)
3 D-Comb
Main-V-Out
TEA6425
(IC147)
Mixer SW
Video
Matrix S/W
6 in, 8 out
Adder
Tri-State
Main-Y-Out
Main-C-Out
Sub-YOut
Sub-COut
Side-Y/C
Main-Y(V)-Out
Main-C-Out
Sub-C-Out
Sub-Y-Out
Mon-Mixed-V-Out
Cap-Y-Out
Sub-V-Out
Cap-V-Out
Mon-V-Out
TEA6422
(IC149)
Audio SW
Audio
Matrix S/W
6 in, 3 out
L2/R2
Side-L/R
Comp1-L/R
L1/R1
Comp2-L/R
MSP44XX
(IC124)
Sound
Processor
Main-L/R
Sub-L/R
PC-L/R
MTNR-SIF
STNR-SIF
Mon-L/Rout
TPA3001D1
(IC125/126)
Audio Amp
1 5 W+15W
Amp-In-L/R
Main-Y(V)
Main-C
Sub-Y(V)
Sub-C
Cap-CVBS
Mon-Vout
Gain0/Gain1
SCL-A
SDA-A SCL-A
SDA-A
SCL-A
SDA-A
SCL-A
SDA-A
SCL-A
SDA-A
SCL-A
SDA-A
DVI(HDMI2)-L/R
13-2-3 Analog Board Block Description
■
Analog Video Signal Processing
■
Select Sound/Video
One is selected from multiple inputs by the switching ID. MICOM decides which port is used for output.
For broadcasting signals, sub-outputs are transferred in CVBS and, the main outputs in Y/C through the 3D Comb, to the digital
board.
Sound signals are selected by the switching IC, of which only one input is transferred to the speaker.
■
Detection Signal Flow
When each port is connected to a signal cable, the detection signal is "low" and can be checked by Micom scanning.
■
Y/C Separation
The 3D Comb filter divides RF CVBS signals into Y/C before being transferred to the digital board.