Click here to load reader
Upload
jose-l-garcia
View
75
Download
14
Tags:
Embed Size (px)
Citation preview
Samsung Electronics 7-1
Schematic Diagram
This Document can not be used without Samsungs authorization.
7.SchematicDiagram7-1 OverallBlockDiagram
FL
FR
USBJACK
AUXJACK
ESS_P3MPEG
LC87F5NC8AMICOM
VFDDISPLAY
H/PJACK
MICJACK
TUNERJACK
PT6324VFD
DRIVER
MICOM- UPDATEMPEG UPDATA
TAPE ASS'Y
SIGNAL
SIGNAL
SIGNAL
CtrL+SIGNAL
SIGNAL
Ctrl
VFD_CBVFD_CLKVFD_DATA
PS 9830
PWMR SPK
H/P SIGNAL
M_STBM_ACKM_RXDM-RESET
PRE-AMP4560
AUDIO
AMPIRS2053
PRE-AMP4560
PRE-AMP4560
Y,Pb,Pr
REC SIGNAL
POWERIRF4019
X 2
POWERIRF4019
X 2L SPK
12.288 MHz
S M P S
AMP POWER MAIN POWER
+5V 5V PVDD
+PVDD
5.6V(MICOM)5.6V(p_sense)
12V(MOTOR)
+VFD
12V(TAPE)
VFDVFD
VP
PON(5V)
74LCX04
PWM_FL_L+PWM_FL_L-
PWM_FR_R-PWM_FR_R+
TSD0TSD1TSD2
SPK FL
SPK_FR
SIGNAL
SIGNAL
Ctrl
TBCKTWS
PS_SIPS_CS
PWM_DATAPWM_CLK
5 TrayMECHAAM 5766DRAM IC
8082DTF
8082DTF
OPENCLOSERL+
RL-
TM+(OP)
TM-(CL)
CM-(DW
)CM
+(UP)
Ctrl
DATA
CtrL+SIGNAL
Ctrl
Motor Ctrl
The Main Micom IC is LC87F5NC8A. Its same as last year. MPEG chip is ES8391SCD. Its upgrade version of ES8390SCD.
The Main Micom control every IC in this PCB.
Video signal is come from DVD mecha and go to the MPEG IC. Then MPEG IC decode this signal to real video signal.
Audio signal is come from DVD mecha, TUNER, AUX, MIC. Then MPEG IC decode to digital I2S signal. This signal goto the PS9830(PWM modulator) to convert PWM signal. PWM signal amplified at IR AMP stage and then Low Pass Filtered. This signal is real audio signal.
7-2 Samsung Electronics
Schematic Diagram
This Document can not be used without Samsungs authorization.
7-2 FRONT
POWER
AUDIO
Samsung Electronics 7-3
Schematic Diagram
This Document can not be used without Samsungs authorization.
7-3 MAIN_MICOM
POWER
AUDIO
TP1
TP1
7-4 Samsung Electronics
Schematic Diagram
This Document can not be used without Samsungs authorization.
7-4 MAIN_MPEG
POWER
AUDIO
VIDEO
Samsung Electronics 7-5
Schematic Diagram
This Document can not be used without Samsungs authorization.
7-5 MAIN_PWM
POWER
AUDIO
Leo SanzehLeo Sanzeh
7-6 Samsung Electronics
Schematic Diagram
This Document can not be used without Samsungs authorization.
7-6 MAIN_AMP
POWER
AUDIO
TP2
TP2
Samsung Electronics 7-7
Schematic Diagram
This Document can not be used without Samsungs authorization.
7-7 SMPS
2
8
3
74,5
1
6
EER4042VEER4215V
EER-2525V
2.9uH
L1
2.9uH (0.8)L3
2.9uH (0.8)L2
2 3
8D
56
1S
7
4G
Leo SanzehLeo Sanzeh
7-8 Samsung Electronics
MEMO
7.Schematic Diagram7-1Overall Block Diagram7-2FRONT7-3MAIN_MICOM7-4MAIN_MPEG7-5MAIN_PWM7-6MAIN_AMP7-7SMPS