Schematic Diagrams - Sherwood R-772 Service Manual

SCHEMATIC DIAGRAMS (I)
PCB1
(MAIN-1)
LIMIT_OPT R431 R443
USA 3K 3K
G / C 2K7 2K7
L-OUT
GND
R-OUT
+12V
TUNED
PLL DO
PLL CLK
PLL DI
PLL CE
GND
RDS DATA
RDS CLK
SW_PREOUT
GND
ROOM2_L
GND
ROOM2_R
GND
SW_MUTE
ROOM2_MUTE
GND
+12V
SPK_B_RLY
R232_RX
R232_TX
DC_OUT_SW
IR_DATA
+5V
GND
GND
+3V3
45
Model No.:R-772
A_FL
GND
GND
A_FR
GND
FL
GND
COMP_MUTE
FR
COMP_DET
GND
S-VIDEO DET
C
C-VIDEO DET
GND
BU2090_DTA
SL
BU2090_CLK
GND
TA1270_SDA
SR
TA1270_SCL
GND
OSD_CE
SBL
OSD_CLK
GND
OSD_DATA
SBR
R2_MUTE
GND
GND
SW
VIDEO4_IN
NC
NC
NC
NC
NC
NC
XM_L
NC
NC GND
GND
XM_R
AC
AC
GND
GND
AC
AC
MAIN_ IRQ
SUBMICOM_RST
SUBMICOM_PDN
SUB_IRQ
SUBMICOM_CCLK
SUBMICOM_SDIN
SUBMICOM_SDOUT
GND
GND
GND
XM_+5V3
XM_+5V3
XM_+5V
XM_+5V
D_GND
D_GND
+12V
A_GND
-12V
5V_OUT
5V_OUT
5V_OUT
D-GND
D-GND
D-GND
HDMI_+5V
HDMI_+5V
HDMI_+5V
STEP_OPT R568 R567 STEP_OPT R566 R565
USA 10K OPEN R772 10K
EUROPE 10K 18K
KOR 18K 10K
10K
CHI OPEN