DOWNLOAD Sharp CD-RW5000 (serv.man18) Service Manual ↓ Size: 7.54 MB | Pages: 96 in PDF or view online for FREE

Model
CD-RW5000 (serv.man18)
Pages
96
Size
7.54 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / System
File
cd-rw5000-sm18.pdf
Date

Sharp CD-RW5000 (serv.man18) Service Manual ▷ View online

– 73 –
CD-RW5000H/CD-RW5000W
Function
Port Name
Input/Output
1
VSS
Input
GND
2
DATA
Input
Serial data input
3
CLOCK
Input
Serial clock input
4
LCK
Input
Latch clock input
5
Q0
Output
Panel LED
6
Q1
Ourput
> I I LED
7
Q2
Output
<< LED
8
Q3
Output
>> LED
9
Q4
Output
Stop LED
10
Q5
Output
Not used
11
Q6
Output
CD 6 LED
12
Q7
Output
CD 5 LED
13
Q8
Output
CD 4 LED
14
Q9
Output
CD 3 LED
15
Q10
Output
CD 2 LED
16
Q11
Output
CD 1 LED
17
OE
Output
Output enable
18
VDD
Input
Power supply
Pin No.
IC702  VHiBU2092F/-1: Output Expander (BU2092F)
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Function
Port Name
Input/Output
1
VSS
Input
GND
2
DATA
Input
Serial data input
3
CLK
Input
Serial clock input
4
LCK
Input
Latch clock input
5
Q0
Output
For CD power control
6*
Q1
Output
Not used
7*
Q2
Output
Not used
8*
Q3
Output
Not used
9
Q4
Output
CD/CD-R input selection
10
Q5
Output
LCD Rest
11*
Q6
Output
Panel control switch
12
Q7
Output
Panel control output close
13
Q8
Output
Panel control output open
14
Q9
Output
Fan motor ON/OFF
15
Q10
Output
AUX analog /OPT digital selection
16
Q11
Output
AUX analog /PHONO input selection
17
OE
Output
Output enable
18
VDD
Input
Power supply
Pin No.
IC912  VHiBU2092F/-1: Output Expander (BU2092F)
CD-RW5000H/CD-RW5000W
– 74 –
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
(*): Normaly the output pin. Used as an I/O pin in test mode, which is not available to user applications.
Function
Port Name
Input/Output
Pin No.
ICT21  VHiLC72722/-1: RDS Decorder (LC72722) (For CD-RW5000H Only)
1
VREF
Output
Reference voltage output (Vdda/2)
2
MPXIN
Input
Baseband (multiplexed0 signal input
3
VDDA
Analog power supply (+5V)
4
VSSA
Analog ground
5
FLOUT
Output
Subcarrier output (fulter output)
6
CIN
Input
Subcarrier input (comparator input)
7
T1
Input
Test input (This pin must always be connected to ground.)
8
T2
Input
Test input (standby control)
0: Normal operation
1: standby state (crystal oscillator stopped)
9*
T3 (RDCL)
Input/Output (*)
Test I/O (RDS clock output)
10*
T4 (RDDA)
Input/Output (*)
Test I/O (RDS data output)
11*
T5 (RSFT)
Input/Output (*)
Test I/O (soft-decision control data output)
12
XOUT
Output
Crystal oscillator output (4.332/8.664 MHz)
13
XIN
Input
Crystal oscillator input (external reference signal input)
14
VDDD
Digital power supply (+5V)
15
VSSD
Digital ground
16*
T6
Input/Output (*)
Test I/O (error status, regenerated carrier, TP, error block count outputs)
(ERROR/57K/TP/BE1)
17*
T7
Input/Output (*)
Test I/O (error correction status, SK detection, TA, error block count outputs)
(CORREC/ARI-ID/TA/BE0)
18*
SYNC
Input/Output (*)
Block synchronization detection output
19*
RDS-ID
Output
RDS detection output
20
DO
Output
Data output
21
CL
Input
Clock input
22
DI
Input
Data input
    Serial data interface (CCB)
23
CE
Input
Chip enable
24
SYR
Input
Synchronization and RAM address reset (active high)
VREF
FLOUT
CIN
Vddd
Vssd
RDS-ID
SYNC
SYR
XOUT
XIN
DO
CL
DI
CE
T1
T2
T3 to T7
MPXIN
Vssa
Vdda
REFERENCE
VOLTAGE
ANTIALIASING
FILTER
57kHz
BPF
(SCF)
VREF
SMOOTHING
FILTER
+
_
PLL
(57kHz)
CLOCK
RECOVERY
(1187.5Hz)
DATA
DECODER
SYNC/EC CONTROLLER
SYNC
DETECT-2
SYNC
DETECT-1
ERROR CORRECTION
(SOFT DECISION)
CLK(4.332MHz)
OSC/DIVIDER
RAM
(24 BLOCK DATA)
MEMORY CONTROL
CCB
TEST
3
1
5
6
4
2
20
21
22
23
13
12
24
18
19
15
14
7
8
9~11,
16,17
Figure 74 BLOCK DIAGRAM OF IC
– 75 –
CD-RW5000H/CD-RW5000W
WIRING OF PRIMARILY SUPPLY LEADS (CD-RW5000H FOR U.K. ONLY)
If any one of the bands shown in Fig. 75 is removed some
reason, be sure replace it to the original position and same
appearance as before.
Figure 75
Nylon Band
Rear Panel
Power Supply PWB
Lug Terminal
Bushing
Browm
Blue
CD-RW5000H/CD-RW5000W
– 76 –
LCD710: RUNTZ0021AWZZ
LCD DISPLAY
LCD (12 characters   3 lines)
with lcons
1~4.7
µ
1~4.7
µ
VLOUT
C1-
C1+
C2-
C2+
VC1
VCC
GND
/RD
/WR
/CS
/RESET
DB4-DB7
RS
3
60
7
4+COMS
7+COMS
Pin No. Pin Name
Connect to
Description
I/O
1
VLOUT
Booster
capacitance
Potential difference between VCI and GND is boosted twice and then
output. Magnitude of boost is selected by instruction.
O
2, 3
C1-, C1+
Booster
capacitance
External capacitance should be connected here.
4, 5
C2-, C2+
Booster
capacitance
External capacitance should be connected here.
I
6
VCI
Power supply
Inputs a reference voltage and supplies power to the booster, 
generates the LCD drive voltage from the operating voltage. 
VCI=0~2.2V
7
VCC
Power supply
5V
8
GND
Power supply
0V
I
9
/RD
MPU
For a 80-system parallel bus interface. Read data at low level.
I
10
/WR
MPU
For a 80-system parallel bus interface. Write data at low level.
I
11
RS
MPU
"L" :Instruction; "H" :Data.
I
12
/CS
MPU
Low :LCD control IC is selected and can be accessed.
High :LCD control IC is not selected and can not be accessed.
I
13
/RESET
MPU or external
R-C circuit
Reset pin. Initializes the LSI when low. Must reset after power-on.
I/O
14
DB4
MPU
Data bit 4. For a bidirection four-bit parallel bus.
I/O
15
DB5
MPU
Data bit 5. For a bidirection four-bit parallel bus
I/O
16
DB6
MPU
Data bit 6. For a bidirection four-bit parallel bus
I/O
17
DB7
MPU
Data bit 7. For a bidirection four-bit parallel bus
Page of 96
Display

Click on the first or last page to see other CD-RW5000 (serv.man18) service manuals if exist.