Sony HCD-HPR90 - Receiver Component For Mini Hi-fi Systems Service Manual page 51

POWER BOARD IC11 CXD9841P (POWER CONTROL)
Pin No. Pin Name
1
VSENSE
2
F/B
3 CT
4
RT
5
GND
6
TIMER
7
SS
8 VC1
9 OCP
10
VC2
11
PGND
12 VG (L)
13
-
14
VG
15
VS
16 VG (H)
17
-
18
VD
I/O
I AC line voltage detection signal input terminal
I Feed back signal input terminal for frequency modulation of oscillator
I Connected to the external capacitor for oscillator duty/frequency setting
I Connected to the external resistor for oscillator frequency setting
- Ground terminal
Connected to the external capacitor for determines intermittent operation period when abnormal
I
detection state
I Connected to the external capacitor for soft start timing
I Power supply terminal for control circuit "L": stop
I
Over current detection signal and didt protection signal input terminal
O Power supply output terminal for driver
- Ground terminal for low voltage side driver
O Low voltage side driver drive signal output terminal
- Not used
O Power supply output terminal for high voltage side driver
I
High voltage side driver reference voltage input terminal
O High voltage side driver drive signal output terminal
- Not used
Terminal for drain-kick starting
I
When starting, current is supplied directly from the rectification diode to VC1
HCD-HPR90/HPR99XM
Description
51