Read Sony CMT-DF1 / HCD-DF1 Service Manual online
29
HCD-DF1
U3 MP1580HS-LF-Z
SYNC
8
EN
7
COMP
6
FB
5
CURRENT
SENSE
AMPLIFIER
BS 1
IN 2
SW 3
GND 4
Σ
Q
Q
S
R
CURRENT
COMPARATOR
OSCILLATOR
40/380kHz
LOCKOUT
COMPARATOR
ERROR
AMPLIFIER
SHUTDOWN
COMPARATOR
FREQUENCY
FOLDBACK
COMPARATOR
INTERNAL
REGULATORS
1
2
5
6
7
8
9
10
11
TIMING
GENERATOR
LCD DRIVER
BIAS CIRCUIT
COMMON
COUNTER
COUNTER
3
4
SERIAL
INTERFACE
ADDRESS
COUNTER
COUNTER
COMMAND/DATA
REGISTER
COMMAND
DECODER
DISPLAY DATA RAM
(DD RAM)
LCD
SEGMENT
DRIVER
32BITS
48 – 37
17 – 24
OSC1
OSC2
V1
V2
V3
VSS
VDD
SCK
SD
C/D
CS
16
RESET
SEG31
ı
SEG20
SEG0
ı
SEG7
SEG19
ı
SEG8
14
13
15
COM3
COM2
COM1
12
COM0
36
ı
25
LCD COMMON
DRIVER 4BITS
DRIVER 4BITS
– PANEL Board –
IC2 BU9728AKV-E2
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