Sharp LC-20B5E (serv.man7) Service Manual ▷ View online
21
LC-20B5E
•
PCMCIA card
Used at 5V/3.3V
•
DM270 (IC5001) CPU, DSP, DMAC, OSD, NTSC encoder: system control, OSD display, video encoding/decoding
Used at 3.3V (1.5V for DSP)
Used at 3.3V (1.5V for DSP)
•
DA150 (IC5201)
Audio encoding/decoding
•
32M FLASH (IC5003)
Storing the program for DA150 and DM270
•
64M SDRAM (IC5006)
Used for temporary data storage and for image data compression and expansion.
•
Reg (IC5409)
Conversing 4V/6V to 3.3V/5V for PCMCIA
•
Reg (IC5004)
Conversing 3.3V to 1.5V for DSP in DM270
"Tips"
1) With this product, showing images recorded with PC or DSC enables you to check the playing system.
2) With PC, showing images recorded with this product enables you to check the recording system.
3) Video is played at the rate in sync with IIS CLOCK signals from audio circuit. For example, if the IIS CLOCK
2) With PC, showing images recorded with this product enables you to check the recording system.
3) Video is played at the rate in sync with IIS CLOCK signals from audio circuit. For example, if the IIS CLOCK
signals fail to reach the card playing circuit for some reason, the video is played at the lowest rate and is shown
in slow motion.
in slow motion.
Major input/output terminals on the card system
Card side
IC (connector)
Pin No. LSI terminal name
Connection diagram
Types of signals
Explanation for signals
I/O
name
signal name
DM270
B3.3V_CARD1A
B3.3V_CARD1A
Power supply
Power supply 3.3V for DM270
I
(IC5001)
103
VIN
VIN
V signal from VPC to DM270
I
102
HIN
HIN
H signal from VPC to DM270
I
100
LLC2 (CLK)
LLC2
Clock signal from VPC to DM270
I
112
YIN0
YIN0
Data signal 0 from VPC to DM270
I
111
YIN1
YIN1
Data signal 1 from VPC to DM270
I
110
YIN2
YIN2
Video input/output
Data signal 2 from VPC to DM270
I
109
YIN3
YIN3
Data signal 3 from VPC to DM270
I
108
YIN4
YIN4
Data signal 4 from VPC to DM270
I
107
YIN5
YIN5
Data signal 5 from VPC to DM270
I
106
YIN6
YIN6
Data signal 6 from VPC to DM270
I
105
YIN7
YIN7
Data signal 7 from VPC to DM270
I
55
RESET
RESET
Data
Reset signal from TV microprocessor to DM270
I
10
CA_DOUT
DOUT
communication
Data signal from TV microprocessor to DM270
I
11
DIN
DIN
Data signal from DM270 to TV microprocessor
I
70
VOUT
VOUT
V signal from DM270 to IP
O
69
HOUT
HOUT
H signal from DM270 to IP
O
68
CKOUT
CKOUT
Clock signal from DM270 to IP
O
81
YOUT0
YOUT0
Data signal 0 from DM270 to IP
O
77
YOUT1
YOUT1
Data signal 1 from DM270 to IP
O
76
YOUT2
YOUT2
Video input/output
Data signal 2 from DM270 to IP
O
75
YOUT3
YOUT3
Data signal 3 from DM270 to IP
O
74
YOUT4
YOUT4
Data signal 4 from DM270 to IP
O
73
YOUT5
YOUT5
Data signal 5 from DM270 to IP
O
72
YOUT6
YOUT6
Data signal 6 from DM270 to IP
O
71
YOUT7
YOUT7
Data signal 7 from DM270 to IP
O
P5003
1
I2S_WS
S_WS
I2S word strobe L: Right audio input / H: Left audio input
I
2
GND
3
I2S_CL
S_CL
Clock for I2S serial data transmission timing
I
4
GND
5
I2SDA_OUT
S_DO
Audio input/output
Audio data input from TV main unit
I
6
GND
7
I2SDA_IN1
S_DI
In card mode: Card Audio / Not in card mode: Shutter sound
O
8
GND
9
I2SDA_IN2
SH_DI
10
GND
Reg
1
IN
B4V/6V1_1A
4V/6V output from DC/DC converter to Reg
O
(IC5409)
2
SW
B4V/6V1_1A
ON/OFF switch
I
3
OUT
V5EN
Power supply
3V power input from DC/DC converter to Reg
I
V3EN
5V power input from DC/DC converter to Reg
I
4
ADJ
For adjustment
5
GND
GND
GND
22
LC-20B5E
Main Side
IC (connector)
Pin No. Terminal name
Signal name
Types of signals
Explanation for signals
I/O
name
P701
9
3.3V (SUB)
B3.3V2A
Power supply
Power supply 3.3V for DM270
(NA215WJ)
VPC
57
VS
VPC_VS
V signal from VPC to DM270
O
(Video decoder)
56
MSY/HS
VPC_HS
H signal from VPC to DM270
O
IC8801
27
LLC2
LLC2
Clock signal from VPC to DM270
O
40
Y0
VPC_YIN0
Data signal 0 from VPC to DM270
O
39
Y1
VPC_YIN1
Data signal 1 from VPC to DM270
O
38
Y2
VPC_YIN2
Video input/output
Data signal 2 from VPC to DM270
O
37
Y3
VPC_YIN3
Data signal 3 from VPC to DM270
O
34
Y4
VPC_YIN4
Data signal 4 from VPC to DM270
O
33
Y5
VPC_YIN5
Data signal 5 from VPC to DM270
O
32
Y6
VPC_YIN6
Data signal 6 from VPC to DM270
O
31
Y7
VPC_YIN7
Data signal 7 from VPC to DM270
O
TV
83
CARDRST
RESET
Data communication, Reset signal from TV microprocessor to DM270
O
microprocessor
35
SUB_DOUT
DOUT
Reset
Data signal from TV microprocessor to DM270
O
(IC2201)
36
SUB_DIN
DIN
Data signal from DM270 to TV microprocessor
I
I/P conversion
207
VS_P2
VD_VS
V signal from DM270 to IP
I
IC
208
HS_P2
VD_HS
H signal from DM270 to IP
I
195
IN_CLK_P2
VD_CKO
Clock signal from DM270 to IP
I
196
P2_0
VPC_0
Data signal 0 from DM270 to IP
I
199
P2_1
VPC_1
Data signal 1 from DM270 to IP
I
200
P2_2
VPC_2
Video input/output
Data signal 2 from DM270 to IP
I
201
P2_3
VPC_3
Data signal 3 from DM270 to IP
I
202
P2_4
VPC_4
Data signal 4 from DM270 to IP
I
203
P2_5
VPC_5
Data signal 5 from DM270 to IP
I
204
P2_6
VPC_6
Data signal 6 from DM270 to IP
I
205
P2_7
VPC_7
Data signal 7 from DM270 to IP
I
MSP
5
I2S_WS
S_WS
I2S word strobe L: Right audio input / H: Left audio input
O
(Audio processor)
4
I2S_CL
S_CL
Clock for I2S serial data transmission timing
O
6
I2SDA_OUT
S_DO
Audio input/output
Audio data input from TV main unit
O
7
I2SDA_IN1
S_DI
In card mode: Card Audio / Not in card mode: Shutter sound
I
Abolished
DC/DC
converter
B4V/6V1_1A
B4V/6V1_1A
Power supply
4V/6V output from DC/DC converter to Reg
O
IC704
22
LC-20B5E
Main Side
IC (connector)
Pin No. Terminal name
Signal name
Types of signals
Explanation for signals
I/O
name
P701
9
3.3V (SUB)
B3.3V2A
Power supply
Power supply 3.3V for DM270
(NA215WJ)
VPC
57
VS
VPC_VS
V signal from VPC to DM270
O
(Video decoder)
56
MSY/HS
VPC_HS
H signal from VPC to DM270
O
IC8801
27
LLC2
LLC2
Clock signal from VPC to DM270
O
40
Y0
VPC_YIN0
Data signal 0 from VPC to DM270
O
39
Y1
VPC_YIN1
Data signal 1 from VPC to DM270
O
38
Y2
VPC_YIN2
Video input/output
Data signal 2 from VPC to DM270
O
37
Y3
VPC_YIN3
Data signal 3 from VPC to DM270
O
34
Y4
VPC_YIN4
Data signal 4 from VPC to DM270
O
33
Y5
VPC_YIN5
Data signal 5 from VPC to DM270
O
32
Y6
VPC_YIN6
Data signal 6 from VPC to DM270
O
31
Y7
VPC_YIN7
Data signal 7 from VPC to DM270
O
TV
83
CARDRST
RESET
Data communication, Reset signal from TV microprocessor to DM270
O
microprocessor
35
SUB_DOUT
DOUT
Reset
Data signal from TV microprocessor to DM270
O
(IC2201)
36
SUB_DIN
DIN
Data signal from DM270 to TV microprocessor
I
I/P conversion
207
VS_P2
VD_VS
V signal from DM270 to IP
I
IC
208
HS_P2
VD_HS
H signal from DM270 to IP
I
195
IN_CLK_P2
VD_CKO
Clock signal from DM270 to IP
I
196
P2_0
VPC_0
Data signal 0 from DM270 to IP
I
199
P2_1
VPC_1
Data signal 1 from DM270 to IP
I
200
P2_2
VPC_2
Video input/output
Data signal 2 from DM270 to IP
I
201
P2_3
VPC_3
Data signal 3 from DM270 to IP
I
202
P2_4
VPC_4
Data signal 4 from DM270 to IP
I
203
P2_5
VPC_5
Data signal 5 from DM270 to IP
I
204
P2_6
VPC_6
Data signal 6 from DM270 to IP
I
205
P2_7
VPC_7
Data signal 7 from DM270 to IP
I
MSP
5
I2S_WS
S_WS
I2S word strobe L: Right audio input / H: Left audio input
O
(Audio processor)
4
I2S_CL
S_CL
Clock for I2S serial data transmission timing
O
6
I2SDA_OUT
S_DO
Audio input/output
Audio data input from TV main unit
O
7
I2SDA_IN1
S_DI
In card mode: Card Audio / Not in card mode: Shutter sound
I
Abolished
DC/DC
converter
B4V/6V1_1A
B4V/6V1_1A
Power supply
4V/6V output from DC/DC converter to Reg
O
IC704
22
LC-20B5E
Main Side
IC (connector)
Pin No. Terminal name
Signal name
Types of signals
Explanation for signals
I/O
name
P701
9
3.3V (SUB)
B3.3V2A
Power supply
Power supply 3.3V for DM270
(NA215WJ)
VPC
57
VS
VPC_VS
V signal from VPC to DM270
O
(Video decoder)
56
MSY/HS
VPC_HS
H signal from VPC to DM270
O
IC8801
27
LLC2
LLC2
Clock signal from VPC to DM270
O
40
Y0
VPC_YIN0
Data signal 0 from VPC to DM270
O
39
Y1
VPC_YIN1
Data signal 1 from VPC to DM270
O
38
Y2
VPC_YIN2
Video input/output
Data signal 2 from VPC to DM270
O
37
Y3
VPC_YIN3
Data signal 3 from VPC to DM270
O
34
Y4
VPC_YIN4
Data signal 4 from VPC to DM270
O
33
Y5
VPC_YIN5
Data signal 5 from VPC to DM270
O
32
Y6
VPC_YIN6
Data signal 6 from VPC to DM270
O
31
Y7
VPC_YIN7
Data signal 7 from VPC to DM270
O
TV
83
CARDRST
RESET
Data communication, Reset signal from TV microprocessor to DM270
O
microprocessor
35
SUB_DOUT
DOUT
Reset
Data signal from TV microprocessor to DM270
O
(IC2201)
36
SUB_DIN
DIN
Data signal from DM270 to TV microprocessor
I
I/P conversion
207
VS_P2
VD_VS
V signal from DM270 to IP
I
IC
208
HS_P2
VD_HS
H signal from DM270 to IP
I
195
IN_CLK_P2
VD_CKO
Clock signal from DM270 to IP
I
196
P2_0
VPC_0
Data signal 0 from DM270 to IP
I
199
P2_1
VPC_1
Data signal 1 from DM270 to IP
I
200
P2_2
VPC_2
Video input/output
Data signal 2 from DM270 to IP
I
201
P2_3
VPC_3
Data signal 3 from DM270 to IP
I
202
P2_4
VPC_4
Data signal 4 from DM270 to IP
I
203
P2_5
VPC_5
Data signal 5 from DM270 to IP
I
204
P2_6
VPC_6
Data signal 6 from DM270 to IP
I
205
P2_7
VPC_7
Data signal 7 from DM270 to IP
I
MSP
5
I2S_WS
S_WS
I2S word strobe L: Right audio input / H: Left audio input
O
(Audio processor)
4
I2S_CL
S_CL
Clock for I2S serial data transmission timing
O
6
I2SDA_OUT
S_DO
Audio input/output
Audio data input from TV main unit
O
7
I2SDA_IN1
S_DI
In card mode: Card Audio / Not in card mode: Shutter sound
I
Abolished
DC/DC
converter
B4V/6V1_1A
B4V/6V1_1A
Power supply
4V/6V output from DC/DC converter to Reg
O
IC704
