Samsung MM-G25, Service Manual

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7-2 Samsung Electronics
Schematic Diagram
This Document can not be used without Samsung’s authorization.
7-1 Overall Block Diagram
SMPS
BLOCK
VFD
DISPLAY
VFD1
LED
DISPLAY
FUNCTION
FIC1
R2S15904
ECHO
PRE-AMP
JIC1
R2A15906
MICOM
UIC1
LC87F5NXXX
MPEG IC
MIC1
ZR36966PQCG
DAC
DAIC1
PCM1742KE
BUFFER
DAIC2
4560
MIC_MIX
FIC2
4560
4560
HIC2
H/P OUT
SCART JACK
EEPROM
MIC4
24C02
BUFFER
BIC1
74VHCT245
MEMORY
MIC3C 12L1616A
MIC2 AT26DF161A
MIC3D K4S641632F
SERVER
RIC1 AM5766
DIC3 TL3472CD
VIDEO OUT
H/P OUT
PWM POWER
STAGE
AIC1
TDA8920
USB JACK
DVD PACK
PICK UP
AUX
JACK
MIC
JACK
TAPE
DECK
HA12237F
TAPE EQ
TUNER
PACK
VFD DRIVER
UIC3
PT6315A
DVD POWER AMP POWER
AUX SINGNAL
MIC LEVEL
DETECT-IN
DAC_CE
DAC_CLK
DAC_DATA
P-MAST
U-ACK
U-TXD
U-RXD
U-STB
MCLK
BCLK
TSDO
LRCK
CD SIGNAL
CL
11
9
10
DI
TUNER SINGNAL
TAPE SINGNAL
REC-IN
MIC OUT
OPTION
MAIN POWER
5V (DVD) 3.3V (DVD) 12V (MOT
OR)
5V (DIGIT
AL)
+/-12V (SIGNAL) 5.6V (MICOM) 4.3V
-VFD
VFD-VP
DO1 CLK1 MIC_CLK MIC_DA
TA
-24V_AMP +24V_AMP

Main System MICOM control Function IC (R2S15904), Turner pack, Tape deck IC (DIC1HA12237F), CD/DVD deck.
It gets all information from R2S15904. They have a communication among the with HOST ↔ SLAVE interface.
And Main System MICOM gets the information from User’s remote control. So whenever it gets the information, it
displays it on the VFD.

The DVD/CD Deck and Tape Deck transfer the audio data to R2S15904.

AUX Jack and Tuner pack are each connected to R2S15904. Data from AUX and tuner transfer to R2S15904.
Then, after processing, the data will send the date to AMP IC.