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LG CM9750 Service Manual

LG CM9750
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3-45 3-46
2. SMPS BLOCK DIAGRAM
Digital
Power
AMP
F_L
F_R
SW_L
SW_R
AC Line
Filter Block
(Varistor,
X-Cap
Line Filter
Thermistor)
Pulse
Trans
Half Bridge
LLC
Resonant IC
(ICE1HS01G)
FET
13 A
600 V
4 EA
14 VA
5.6 VA
+PVDD
(58 V)
AC
MAIN SMPS
IC
(STR-2A153D)
Flyback
MAIN
TRANS
u-com / BT
USB / MPEG
FAN/Mic/
Relay
PFC
P- CTRL
Half
Bridge
LLC
TRANS
(AMP)
- 5 V
-PVDD
(-58 V )
GATE
Half
Bridge
LLC
TRANS
(AMP)
Gate
Drive
2.2 CH 3000 W
OPAMP
AMP
P- CTRL
Totem
pole
PFC IC
(R2A20112A)
Interleaved
CRM
FET
20 A
600 V
4 EA
Gate
Drive
+
PFC Out
(395 V)
Ǹ
Ǹ
Ǹ
Ǹ
Ǹ
Ǹ
On/Off
On/Off
Ǹ
Vcc
Vcc
On/Off
On/Off
Relay
LED, VFD
Motor Drive
12 V
Ǹ

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LG CM9750 Specifications

General IconGeneral
Type-
Cassette deckNo
Product colorBlack
Number of decks1 deck(s)
Disc loading typeTray
Optical disc playerYes
Number of optical discs1 discs
Speaker type3-way
RMS rated power- W
Woofer diameter304.8 mm
Tweeter diameter25.4 mm
Number of speakers2
Mid-range driver diameter165.1 mm
Subwoofer driver diameter (imperial)12 \
Tuner typeDigital
FM band range87.5 - 108 MHz
Supported radio bandsFM
Headphone connectivity3.5 mm
USB 2.0 ports quantityUSB 2.0 ports have a data transmission speed of 480 Mbps, and are backwards compatible with USB 1.1 ports. You can connect all kinds of peripheral devices to them.
Microphone connectivity6.3 mm
Apple docking compatibilityNot supported
Disc types supportedCD, CD-R, CD-RW
Playback disc formatsCD audio
Audio formats supportedMP3, WMA
Volume controlRotary
Equalizer modesBass, Classic, Jazz, Pop, Rock
Power sourceAC
Weight and Dimensions IconWeight and Dimensions
Main unit weight6600 g
Main unit dimensions (WxDxH)450 x 355 x 160 mm

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