13 Block Diagram
13.1. CD Servo Block Diagram
SA-AK780
/785
CD SERVO BLOCK DIAGRAM
CD OPEN SWITCH
REST SWITCH
S7202
S7201
[67]MDATA
[66]MCLK
[68]MLD
15
11
5,6
20,21
25
23
9,10,11
15,16,17
3
CN7001
CN7001
CN7001
CN7001
CN7001
CN7001
CN7001
CN7001
CN7001
CN7001
7
9
2
11
4
16
15
14
13
MUTE
[CH1]
LEVEL
SHIFT
[CH3]
LEVEL
SHIFT
[CH4]
LEVEL
SHIFT
[CH2]
LEVEL
SHIFT
[CH1]
MUTE
[CH2]
[28]PD
[29]LD
[17]FOP
IC7002
BA5948FPE2
4CH DRIVE
IN4
27
[16]TRP
IN3
28
IN2
1
[14]TRVP
[13]SPOUT
[12]PC
IN1
3
PC2
2
VREF
PVCC1
PVCC2
VCC
26
10,19,25
D4-
17
D4+
18
D3-
15
D3+
16
D2+
14
D2-
13
M7301*
TRAVERSE
MOTOR
D1+
12
D1-
11
M7302*
SPINDLE
MOTOR
OPTICAL PICKUP P.C.B
B
FOCUS
COIL
TRACKING
COIL
T+
OPTICAL PICKUP
PHOTO DETECTOR
SEMICONDUCTOR
LASER
F+
F-
T-
<LD_SW>
PC1
4
B
B
M
M
[9]DVDD1
[61]DVDD2
<1.5V>
<+VREF>
<+7.5V>
B
<3.3V>
B
IC7001
Q7601
LASER POWER
DRIVE
MN6627553PA
SERVO PROCESSOR
[26]C
E
E
E
E
E
F
E
F
D
C
A
B
D
C
[25]B
[22]E
[27]A
[24]D
[23]F
[49]OUTL
[48]AVDD2
[75]IOVDD2
[30]AVDD2-2
[8]IOVDD1
[62]NTEST2
CD SIGNAL LCH
X7201
[74]X1
[73]X2
CN7002
[52]OUTR
CD SIGNAL RCH
CN7002 CN2801
CN2801
CN2801
CN2801
CN2801
CN7002
CN7002
4
22
CN2801
CN7002
CN7002
CD SERVO P.C.B
TO MAIN (1/2)
TO MAIN (1/2)
TO MAIN (2/2)
: CD AUDIO INPUT SIGNAL LINE
1
3
Summary of Contents for SA-AK785
Page 16: ...16 5 3 Disc Information ...
Page 27: ...27 6 6 2 Error Code Table For Power Supply ...
Page 28: ...28 7 Troubleshooting Guide 7 1 Jupiter USB ...
Page 29: ...29 7 2 Troubleshooting Guide ...
Page 30: ...30 ...
Page 32: ...32 7 3 2 Troubleshooting Guide ...
Page 38: ...38 ...
Page 39: ...39 9 1 Disassembly Flow Chart ...
Page 40: ...40 9 2 Main Components and P C B Locations ...
Page 98: ... 9 1 t i u c r i C n i a M 2 6 1 ...
Page 99: ... 9 2 t i u c r i C n i a M ...
Page 100: ... 9 3 t i u c r i C n i a M ...
Page 101: ......
Page 102: ... 9 5 t i u c r i C n i a M ...
Page 103: ... 9 6 t i u c r i C n i a M ...
Page 104: ......
Page 105: ......
Page 106: ......
Page 119: ...d r a o B t i u c r i C d e t n i r P 7 1 B C P r e t i p u J o v r e S D C 1 7 1 785 ...
Page 120: ... B C P n i a M 2 7 1 M097852A 785 ...
Page 121: ... B C P c i M e n o h p d a e H t r o P M y r o m e M l e n a P 3 7 1 M097803A 785 ...