Sony FH-SR1D / HCD-SR1D Service Manual ▷ View online
HCD-SR1D
33
MAIN BOARD IC401 STM8S105K6 (Flash, EEPROM, ADC, Timers, UART, SPI, I²C)
Pin No.
Pin Name
I/O
Description
1
RST
I
MCU Reset
2
PA1/OSCIN
I
Crystal in
3
PA2/OSCOUT
O
Crystal out
4
VSS
-
Digital ground
5
VCAP
-
1.8 V regulator capacitor
6
VDD
-
Digital power supply
7
VDDIO_1
-
I/O power supply
8
PF4/AIN12
I
Audio in signal detection
9
VDDA
-
Analog power supply
10
VSSA
-
I/O ground
11
PB5/AIN5
I
Panel key scan
12
PB4/AIN4
I
Panel key scan
13
PB3/AIN3
I
Panel key scan
14
PB2/AIN2
I
Panel key scan
15
PB1/AIN1
I
TYPE monitor
16
PB0/AIN0
O
SPI CS to LCD Driver HT1621
17
PE5/SPI_NSS
O
SPI SCK to LCD Driver HT1621
18
PC1/TIM1_CC1
O
SPI SDA to LCD Driver HT1621
19
PC2/TIM1_CC2
O
SPI select control
20
PC3/TIM1_CC3
O
TYPE frequency control
21
PC4/TIM1_CC4
O
Reset tuner
22
PC5/SPI_SCK
I
Detect input for tuner
23
PC6/SPI_MOSI
I
MIK IC Reset monitor
24
PC7/SPI_MISO
I
AMP guard mode monitor
25
PD0/TIM3_CC2
O
Control DVD POWER ON/OFF
26
PD1/SWIM
I
MCU update
27
PD2/TIM3_CC1
I
IR receive input
28
PD3/TIM3_CC2
I
Serial clock f control
29
PD4/TIM2_CC1/
BEEP
I
Serial data control
30
PD5/UART3_TX
I/O
UART_TX for MT1389L and MCU
31
PD6/UART3_RX
I/O
UART_RX for MT1389L and MCU
32
PD7/TLI
O
Audio output mute
HCD-SR1D
34
MAIN BOARD IC402 STA2314 (Volume control, Treble and Bass, Gain, 4 Stereo input 1 Stereo output)
Pin No.
Pin Name
I/O
Description
1
R_IN3
I
Audio 3 right channel input
2
R_IN2
I
Audio 2 right channel input
3
R_IN1
I
Audio 1 right channel input
4
L_IN1
I
Audio 1 left channel input
5
L_IN2
I
Audio 2 left channel input
6
L_IN3
I
Audio 3 left channel input
7
L_IN4
I
Audio 4 left channel input
8
MUXOUT(L)
O
Multiplexer left channel output
9
IN(L)
I
Left channel input
10
MUXOUT(R)
O
Multiplexer right channel output
11
IN(R)
I
Right channel input
12, 13
BIN(R), BOUT(R)
-
Right channel bass peripheral regulation
14, 15
BIN(L), BOUT(L)
-
Left channel bass peripheral regulation
16
N.C.
-
Not used
17
N.C.
-
Not used
18
TREBLE(L)
-
Left channel treble peripheral regulation
19
TREBLE(R)
-
Right channel treble peripheral regulation
20
DIG-GND
-
Digital ground
21
SCL
I
I2C clock
22
SDA
I
I2C data
23
CREF
-
Reference voltage
24
Vs
-
Power supply
25
AGND
-
Analog Ground
26
ROUT
O
Right channel output
27
LOUT
O
Left channel output
28
R_IN4
I
Audio 4 right channel input
HCD-SR1D
35
AMP BOARD IC403 STA540SA (Audio amplifi er)
Pin No.
Pin Name
I/O
Description
1
OUT1
O
Negative PWM output for right channel
2
OUT2
O
Positive PWM output for right channel
3
VCC1
-
Power supply
4
IN1
I
Right channel input
5
IN2
I
Right channel input
6, 7
NC
-
Not used
8
SVR
I
Supply voltage rejection
9
ST_BY
I
Standby mode control
10
P_GND
-
Power Ground
11
S_GND
-
Signal Ground
12
DIAG
O
Open-drain diagnostic output
13, 14
NC
-
Not used
15
IN4
I
Left channel input
16
IN3
I
Left channel input
17
VCC2
-
Power supply
18
OUT4
O
Positive PWM for left channel
19
OUT3
O
Negative PWM output for left channel
HCD-SR1D
36
LCD BOARD IC601 HT1621B (LCD Driver)
Pin No.
Pin Name
I/O
Description
1 to 6
SEG7 to SEG2
O
LCD segment output pins
7, 8
SEG1, SEG0
O
LCD segment output pins Not used
9
CS
I
Chip select signal input from the MT1389L
10
RD
I
READ clock input pin Not used
11
WR
I
Clock signal input from the MT1389L
12
DATA
I/O
Serial data input/output bus with the MT1389L
13
VSS
-
Ground
14
OSCO
O
Oscillator output pin Not used
15
OSCI
I
Oscillator input pin Not used
16
VLCD
I
LCD power input pin
17
VDD
-
Power supply (+3.3V)
18
IRQ
O
Not used
19
BZ
O
Tone frequency output pin Not used
20
BZ
O
Tone frequency output pin Not used
21 to 24
COM0 to COM3
O
LCD common output pins
25 to 48
SEG31 to SEG8
O
LCD segment output pins
Click on the first or last page to see other FH-SR1D / HCD-SR1D service manuals if exist.