Sony HT-1900DP / STR-K1900P Service Manual ▷ View online
25
STR-K1900P
IC100 PT6315 (DISPLAY BOARD)
1
2
3
4
5
4-bit latch
24-bit output latch
12-bit shift register
Data selector
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
Serial
interface
OSC
Timing generator
key scan
Display memory
24 bits x 12 words
Key data memory
(2 x 16 bits)
Command decoder
segment driver
Grid driver
Multiplexed driver
39
40
41
42
43
44
LED1
LED2
LED3
LED4
OSC
DOUT
DIN
CLK
STB
KEY1
KEY2
VSS
VDD
SEG1/KS1
SEG2/KS2
SEG3/KS3
SEG4/KS4
SEG5/KS5
SEG6/KS6
SEG7/KS7
SEG8/KS8
SEG9/KS9
SEG10/KS10
SEG20/GRID9
SEG21/GRID8
SEG22/GRID7
SEG23/GRID6
SEG24/GRID5
GRID4
GRID3
GRID2
GRID1
VDD
VSS
SEG11/KS11
SEG12/KS12
SEG13/KS13
SEG14/KS14
SEG15/KS15
SEG16/KS16
VEE
SEG17/GRID12
SEG18/GRID11
SEG19/GRID10
IC101 TC74ACT08P (DISPLAY BOARD)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1A
1B
1Y
2A
2B
2Y
GND
VCC
4B
4A
4Y
3B
3A
3Y
26
STR-K1900P
IC201 M61527FP (MAIN BOARD)
INR10/RECR4
AVEE
INL9
INR9
INL8
INR8
INL7
INR7
SLIN2
INL6
INIR6
INL5
INR5
INL4
INR4
INL3
NC
RSELOUT
GND
NC
SWVIN
LATCH
CLOCK
DGND
SLVIN
SWIN2
CIN2
SWSELOUT
SROUT
LIN1
SRIN2
NC
GND
GND
AVCC
NC
RIN1
SWIN1
DVDD
RIN2
LIN2
GND
BALANCE R/-
BALANCE R/+
SRSELOUT
SRIN1
ROUT
LOUT
CIN1
GND
INR1
INL1
INR2
RECR2
INR3
BALANCE L/+
SWOUT
COUT
NC
BALANCE L/-
RVIN
CVIN
CSELOUT
SLSELOUT
GND
SLOUT
NC
SRVIN
SLIN1
LVIN
LSELOUT
GND
RECL1
RECR1
RECL2
RECL3
RECR3
INL10/RECL4
DATA
INL2
MCU I/F
CLK
DATA
LATCH
80
78
77
76
75
74
73
72
71
70
69
68
67
66
65
79
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15
16 17
18
19
20
21
22
23
24
IC501 STK350-230 (MAIN BOARD)
IC503 STK350-230 (SUB WOOFER BOARD)
IC503 STK350-230 (SUB WOOFER BOARD)
1
2
3
4
5
6
7
8
9
TR3
R1
R2
TR4
TR6
TR7
R4
R9
TR5
TR1
TR2
R6
D4 D3
R7
R8
TR8
D1 D2
R5
R3
INPUT
NF
-VEOUT
+VEOUT
V
SS
GND
V
CC
SUB
IC701, 702 mPC2581V-S (MAIN BOARD)
PROTECTOR
DRIVE
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15
PRE
DRIVE
PRE
DRIVE
BIAS CIRCUIT
REG
MUTE
+VOUT1
–VOUT1
COMP1
NF1
IN1
GND
IN2
NF2
COMP2
–VOUT2
+VOUT2
VCC1
VCC2
VEE
DRIVE
27
STR-K1900P
• IC Pin Function Description
DIGITAL BOARD IC1601 MB90478PF-G-170-BNDE1 (SYSTEM CONTROL)
DIGITAL BOARD IC1601 MB90478PF-G-170-BNDE1 (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
DATAO
I
Audio data signal input from DIR
2
GP9
I
GP9 signal input from DSP
3
BST
O
BST signal output to DSP
4
HCS
O
HCS signal output to DSP
5
HACN
I
HACN signal input from DSP
6
XRST
O
Reset signal output to DSP
7
PM
O
PM signal output to DSP
8
PD
O
Power down signal output to AUDIO CODEC
9
SMUTE
O
Muting signal output to AUDIO CODEC
10
CDT1
O
Control data signal output to AUDIO CODEC
11
VSS
—
Ground terminal
12
SCL
O
Clock signal output to AUDIO CODEC
13
CS
O
Chip select signal output to AUDIO CODEC
14
DATA
O
Control data signal output to the sound processor
15
CLK
O
Clock signal output to the sound processor
16
LATCH
O
Latch signal output to the sound processor
17
SPK B RELAY
O
Speaker B relay control signal output
18
HDOUT
I
HDOUT signal input from DSP
19
HDIN
O
HDIN signal output to DSP
20
HCLK
O
Clock signal output to DSP
21
F.MUTE
O
Muting signal output
22
AC MUTE
O
Muting signal output to the power amplifier
23
VCC5
—
Power supply
24
ANA/DIG
O
Muting and error signal output
25
HP DETECT
I
Headphone switch detect signal input
26
NC
—
Short to ground terminal
27
FLASH2
O
Terminal for FLASH programming
28
FLASH1
I/O
Terminal for FLASH programming
29
NC
—
Short to ground terminal
30
NC
—
Short to ground terminal
31
NC
—
Short to ground terminal
32
NC
—
Short to ground terminal
33
SCL
O
Serial clock output
34
SDA
I/O
Serial data input or output
35
AVCC
—
Analog power supply
36
AVRH
I
Analog reference voltage input
37
AVSS
—
Analog ground terminal
38
A/D0
I
Function key push signal input
39
A/D1
I
Function key push signal input
40
A/D2
I
Function key push signal input
41
A/D3
I
Function key push signal input
42
VSS
—
Ground terminal
43
RDS SIGNAL
I
RDS signal detect input
44
MODEL
I
Version setting input (MODEL)
45
VERSION
I
Version setting input (DESTINATION)
46
BLUE LED
O
MULTICHANNEL DECODING LED control signal output
47
CRYSTAL SEL
—
Short to ground terminal
28
STR-K1900P
Pin No.
Pin Name
I/O
Description
48
STOP
I
AC off detect signal input
49
MD0
I
Operation mode setting input
50
MD1
I
Operation mode setting input
51
MD2
I
Operation mode setting input
52
RDS CLOCK
I
RDS clock signal input (Not used)
53
RDS DATA
I
RDS data signal input (Not used)
54
SIRCS
I
Data signal input from the remote control sensor
55
FUSE DETECT
I
Fuse detect signal input
56
POWER KEY
I
Power switch key detect signal input
57
JOG (B)
I
Jog dial signal input from the rotary encoder
58
JOG (A)
I
Jog dial signal input from the rotary encoder
59
VOL (B)
I
Jog dial signal input from the rotary encoder
60
VOL (A)
I
Jog dial signal input from the rotary encoder
61
DIN
O
Data signal output to the FL tube driver
62
CLK
O
Clock signal output to the FL tube driver
63
FL STB
O
Strobe signal output to the FL tube driver
64
NC
—
Short to ground terminal
65
POWER RELAY
O
Power relay control signal output
66
PROTECTOR
I
Protector status detect signal input
67
HEADPHONE RELAY
O
Headphone relay control signal output
68
WOOFER RELAY
O
Woofer relay control signal output
69
REAR RELAY
O
Rear speaker relay control signal output
70
CENTRE RELAY
O
Centre speaker relay control signal output
71
PREOUT/FRONT RELAY
O
Front speaker relay control signal output
72
R1 RELAY
O
Bridgeable relay control
73
TUNED
I
Tuning a frequency signal input from the tuner
74
STEREO
I
Stereo tuning signal input from the tuner
75
MUTE
O
Muting signal output to the tuner
76
DO
I
Frequency data signal input from the tuner
77
RSTX
I
System reset
78
SLATCH
O
Latch signal output to the tuner
79
X1A
—
Not used
80
X0A
—
Ground terminal
81
VSS
—
Ground terminal
82
X0
—
Connection for a crystal resonator
83
X1
—
Connection for a crystal resonator
84
VCC3
—
Power supply
85
REMOTE SEL
—
Short to ground terminal
86
NC
O
Not used
87
SW4
O
Video select control signal output (Not used)
88
SW3
O
Video select control signal output (Not used)
89
SW2
O
Video select control signal output (Not used)
90
SW1
O
Video select control signal output (Not used)
91
NC
—
Short to ground terminal
92
NC
—
Short to ground terminal
93
XMODE
O
Reset signal output to DIR
94
CKSEL 1
O
CKSEL control signal to DIR
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