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HCD-HPR90 - Receiver Component For Mini Hi-fi...
Service manual
Sony HCD-HPR90 - Receiver Component For Mini Hi-fi Systems Service Manual page 42
Service manual
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Also See for HCD-HPR90 - Receiver Component For Mini Hi-fi Systems
:
Operating instructions
(2 pages)
,
Service manual
(68 pages)
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HCD-HPR90/HPR99XM
IC707, 708 CXD9774M
DVDD DREG
GND 1
PWM
PWM BP 2
RECEIVER
GND 3
DGND
RESET 4
DREG RTN 5
DIGITAL
DREG
REGULATOR
GVDD 6
GVDD
M3 7
DREG 8
DREG
DGND 9
M1 10
M2 11
PROTECTION
LOGIC
DVDD 12
OT
SD 13
&
UVP
DGND 14
OTW 15
DVDD DREG
GND 16
PWM
PWM AP 17
RECEIVER
GND 18
DGND
– FL Board –
IC901 µPD16315GB-3BS
LED1
1
LED2
2
LED3
3
LED4
4
5
OSC
OSC
DOUT
6
7
DIN
SERIAL
INTERFACE
CLK
8
STB
9
KEY1
10
KEY2
11
42
GVDD
DREG
OCH
GATE
DRIVE
TIMING
CONTROL
&
PROTECTION
GATE
DRIVE
OCL
OCL
GATE
DRIVE
TIMING
CONTROL
&
PROTECTION
GATE
DRIVE
DREG
OCH
GVDD
44
43
4-BIT LATCH
12-BIT SHIFT
REGISTER
KEY DATA MEMORY
(2 x 16 BITS)
TIMING GENERATOR
KEY SCAN
DISPLAY MEMORY
24-BIT OUTPUT
24 BITS x 12 WORDS
LATCH
COMMAND
DIMMING
DECODER
CIRCUIT
12
13
36
GVDD B
35
GVDD B
34
GND
33
BST B
32
PVDD B
31
PVDD B
30
OUT B
29
OUT B
28
GND
27
GND
26
OUT A
25
OUT A
24
PVDD A
23
PVDD A
22
BST A
21
GND
20
GVDD A
19
GVDD A
42
41
40
39
38
37
36
12
4
GRID
DRIVER
8
8
DATA
MULTIPLEXED
SELECTOR
DRIVER
8
24
16
SEGMENT
DRIVER
14
15
16
17
18
19
20
35
34
4
33 SEG19/GRID10
32 SEG18/GRID11
31 SEG17/GRID12
8
30 VEE
29 SEG16/KS16
28 SEG15/KS15
27 SEG14/KS14
16
26 SEG13/KS13
25 SEG12/KS12
24 SEG11/KS11
23 SEG10/KS10
21
22
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Table of Contents
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