Sony HCD-DH7BT Service Manual - Page 80

POWER BOARD, IC11 CXD9841P POWER CONTROL, Pin No., Pin Name, Description

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HCD-DH3/DH5BT/DH7BT http://www.xiaoyu163.com QQ 376315150 POWER BOARD IC11 CXD9841P (POWER CONTROL) 892498299 Pin No. Pin Name I/O Description 1 VSENSE I AC line voltage detection signal input terminal 2 F/B I Feed back signal input terminal for frequency modulation of oscillator 3 CT I Connected to the external capacitor for oscillator duty/frequency setting 4 RT I Connected to the external resistor for oscillator frequency setting 5 GND - Ground terminal 6 PROTECT I Connected to the external capacitor for determines intermittent operation period when abnormal detection state 7 SS I Connected to the external capacitor for soft start timing 8 VC1 I Power supply terminal for control circuit "L": stop 9 OCP I Over current detection signal and didt protection signal input terminal 10 VC2 O Power supply output terminal for driver 11 P-GND - Ground terminal for low voltage side driver 12 VG (L) O Low voltage side driver drive signal output terminal 13 - - Not used 14 VB O Power supply output terminal for high voltage side driver 15 VS I High voltage side driver reference voltage input terminal 16 VG (H) O High voltage side driver drive signal output terminal 17 - - Not used 18 VD I Terminal for drain-kick starting When starting, current is supplied directly from the rectification diode to VC1 TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 www. xiaoyu163. com 80 http://www.xiaoyu163.com

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80
HCD-DH3/DH5BT/DH7BT
POWER BOARD
IC11 CXD9841P (POWER CONTROL)
Pin No.
Pin Name
I/O
Description
1
VSENSE
I
AC line voltage detection signal input terminal
2
F/B
I
Feed back signal input terminal for frequency modulation of oscillator
3
CT
I
Connected to the external capacitor for oscillator duty/frequency setting
4
RT
I
Connected to the external resistor for oscillator frequency setting
5
GND
-
Ground terminal
6
PROTECT
I
Connected to the external capacitor for determines intermittent operation period when abnormal
detection state
7
SS
I
Connected to the external capacitor for soft start timing
8
VC1
I
Power supply terminal for control circuit
"L": stop
9
OCP
I
Over current detection signal and didt protection signal input terminal
10
VC2
O
Power supply output terminal for driver
11
P-GND
-
Ground terminal for low voltage side driver
12
VG (L)
O
Low voltage side driver drive signal output terminal
13
-
-
Not used
14
VB
O
Power supply output terminal for high voltage side driver
15
VS
I
High voltage side driver reference voltage input terminal
16
VG (H)
O
High voltage side driver drive signal output terminal
17
-
-
Not used
18
VD
I
Terminal for drain-kick starting
When starting, current is supplied directly from the rectification diode to VC1