Schematic Diagrams for Philips CD753
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Transcript of Schematic Diagrams for Philips CD753
5-45-4
CS 53 148
BCLK
WCLK
SDA
BCLK
WCLK
SDA
SE
RIA
L D
AT
AIN
TE
RF
AC
E
D/A
D/A
DAC BUFFER
Left out
MUTE
VOLUME
MUTE
Right out
7505
KILL
KILL
STBY(COMMAND FROM µP)
+5V
Standby circuit
12511
2
3
4
5
6
7
1506
1504
1
2
3
4
5
+10V
+5V (switched)
+10V
-10V
+5V
AMPLIFIER
HEADPHONE BOARDAF BOARD
7670 1600HEADPHONE SOCKET
1621
2
3
4
5
+10V
-10V
MUTE LINE OUT
MUTE
12521
2
3
4
5
6
7
8
POWERED
KILLI
STBY
STBY
-VKK
F2
F1
+5V
KILLI(COMMAND FROM µP)
POWERED KILLP
Mute control
18021
2
3
4
5
6
7
BCLK
WCLK
SDA
KILL
+10V
+5V
12501
2
3
4
5
6
F1
-VKK
+10V
+5V
-10V
F2
VOLTAGESELECTOR(/01 only)
MAINS PLUG
110V
220V
F1,F2 Filament for FTD (FRONT BOARD)-VKK Supply for FTD (FRONT BOARD)+10V +Supply for buffer and headphone amplifier-10V -Supply for buffer and headphone amplifier+5V Stabilized 5V supply for DAC and µP
PROGRAM
CD TEXT
PEAK
REPEAT REMTOTAL TRACK TIMESCAN TRACKSHUFFLE 1A-B
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 +
1811
2
3
4
5
6
7
8
ROM RAM
VDD
VKK
ConverterA/D
P7 P8 P9
TE
ST
RE
SE
T
DISPLAY-DRIVERS
VSSCLOCK
P2 P1
P4
P5
P3
P0
P6
8BIT CPU
KEY MATRIX
4
4
IR EYE
7810
+5V RC5
TRAY-
TRAY+
TRAY_SW
CD_PORE
CD_DATA
GND
CD_SILD
CD_SICL
µP CLK
GND
SRDT
DOSY
18041
2
3
4
5
6
7
8
TRAY-
TRAY+
TRAY_SW
CD_PORE
CD_DATA
GND
CD_SILD
CD_SICL
1821
2
3
4
5
6
7
8
POWERED
KILLI
STBY
-VKK
F2
GND
F1
+5V
18101
2
3
4
µP CLK
GND
SRDT
DOSY
17204
3
2
1
ECO SHORT LOADERfor details see next page
CD753 Blockdiagram 19980604
FRONT BOARD
BLOCKDIAGRAM
5-5 5-5
CS 53 149
SAA7372CD7
TDA1302TDALAS
R2
D1
D2
D3
D4
R1
BCLKWCLKSDA
BCLK
WCLK
SDA
BCLK
WCLK
SDA
HFIN
GAIN SELECTION H=CD-R/W, L=normal CD
R2
D1
D2
D3
D4
R1
LDON
DISC
PHOTO DIODEARRAY
TURNTABLEMOTOR
TRACKSERVO
FOCUSSERVO
SLIDESERVO
D1 D2
R2R1
D3
FLEX PCB
A/D
-CO
NV
ER
TE
R
SERIALINTERFACE
PINTERFACE
CONTROL PART
EBUINTERFACE
RAMADDRESS.
SUBCODEPROCESS.
MOTORCONTROL
OUTPUTSTAGES
ERRORCORRECT.
FRONT END TIMING
DIGITAL PLL
SRAMEFMDEMOD.
Vre
f
KILL
PRE-PROC. FUNCTIONCONTROL
VERSATILEINTERFACE
AUDIOPROCESS.
PEAKDET.
��������������������������������
RA (PWM signal)
RA FO SL
FO (PWM signal)
SL (PWM signal)
TRACK
FOCUS
DISC Motor-
DISC Motor+
SLIDE Motor+
SLIDE Motor-
FOCUS Servo+
FOCUS Servo-
TRACK Servo+
TRACK Servo-
SLIDE
DISC MOTOR
MOTO1(from CD7)
MOTO2(from CD7)
L.P.F.
L.P.F.
L.P.F.
MOTO2MOTO1 16.93MHzDOBM
RESET
1
CD - DriveVAM1201
pick upunit
slid
e m
otor
turntable
Inner switch
TDA7073A
SERVO DRIVER
TDA7073A
MOTOR DRIVER
7851
7802 7819 7860
7852
Laseron/off
Laser
+5V
ALPC
Automatic Laser Power Control
DATA
RESET
TRAY_SW
TRAY +
TRAY -
SILD
SICL
1802
1804
1803
STABILIZER
+5ESDV
+5V
+4V
+A
+A
+5
7877
TRAY
SU
PP
LY &
AU
DIO
INT
ER
FA
CE
CO
NT
RO
L IN
TE
RF
AC
E
MOTOR
TRAY
7855 TDA7072A
+-
M
HF-PREAMPLIFIER
CD TEXT (optional)
VDD
SCLKXMODE
MCK
WFCK
SCOR
SBSQ
EXCK
CD-T
EXT
INTE
RFAC
E
DQSY
SRDT
DQSY
SRDT
uP_CLK
7821
1720
LC89170M
+4V
Tim
ing
& Sy
ncPr
otec
tion
CRCCheck
CPU
Inte
rface
RAM32kx8
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
L.P.F.
62,5V
0
-2,5V
eye-pattern signal> 800 mVpp
TB=0.5 s
during focus search
TB=0.1s
2
4
3
5
SDA
WCLK left channel
MS
B
LSB
MS
B
right channel
BCLK
TRANSFER OF AUDIO SAMPLES VIA SERIAL INTERFACE OF CD7
CD7 → DAC
1
LSB
ECO SL Mk3 Blockdiagram (IIs) 19980601
BLOCKDIAGRAM ECO SHORTLOADER Mk3
6-16-1
CS 53 150
blue
redred
whitegreenwhite
1
12521
188
connect cover
1
162
1 1841
1
182
181
1880
1
1804
15021
161
1
1250
1
1251 1
1506
1802
1
1
1
80078
80078
80068
8006
8
8004
8001
connect cover
8010
2
80053
80053
8001 7
8001 7
8003 5
6
CD MODULEECO SL Mk3
FRONT - BOARD
HEADPHONE
STAND BY
AF - BOARD
Digital out1503
Line out1504
TRANSFORMER /00 /14
TRANSFORMER /01
blue
redred
whitegreenwhite
220 - 230V
Thermal fuse130¡C
Thermal fuse125¡C
Mains plug
Mains plug
Voltage selectorblack
red 220 - 230V
blue 110 - 127V
WIRING DIAGRAM
1600
GN
DD
OB
MS
HIE
LD
+10V-10V
LEFTAGNDRIGHT
+10
V-1
0VLE
FT
AG
ND
RIG
HT
KIL
LD
AT
AB
CK
WS
+5V
GN
D+
10V
PO
WE
RE
DK
ILLI
ST
DB
Y-V
KK
F2
F1
GN
D+
5V
PO
WE
RE
DK
ILLI
ST
DB
Y-V
KK
F2
F1
GN
D+
5V
+A(+10V)GND+5VWSBCKDATA KILL
GNDDOBMSHIELD
SICLGNDSILDDATARESETTRAY_SWTRAY+TRAY-
TRAY-TRAY+TRAY_SWRESETDATASILDGNDSICL
phones
not for CD713
18101
P C
LKG
ND
SR
DT
DO
SY
800241
1720P CLK
SRDTDOSY
GND
connect cover
Wiring diagram CD753 (980430)
7-1 7-1
CS 53 151
6
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
A
B
C
D
E
A
B
C
D
E
1250 B41255 C51256 D52250 B62251 B52252 C62253 C62254 D72255 D82256 D62257 D62258 D72259 E53251 A53252 A53253 A53254 B63255 B63256 E63257 E73258 E73260 C73557 B46250 C66251 A66252 B56253 C66254 C66255 D66256 D66257 D56258 D56259 E66260 D87250 A67251 C87252 E6F560 C4F561 C4F562 C4F563 C4F564 C4F565 C4F566 B5F567 E6F568 E6
F567
F568
F566
F564
F565
F563
F561
F562
T630mA
1256
F560
T630mA
1255
6R8
3557
1N40
03
6260
D2
3260
5R6
2259
220u
22n
2257
4K7
3254
A
POWERED
2K2
3255
470R
3251
470R
3252
F1
+5V
6251
BZX55-C4V7
2
VIN1
VOUT3
-VKK
F2
7250BC327-40
7251
L7805CV
KILLI
KILLP
A
D
A
-10V
A
D D
D2
A
+10V
D2
4K7
3258
3257
4K7
7252BC558C
1K
3256
BZ
X79
-C3V
9
6259
6258
1N40
03
22581N
4003
6257
100n
2255
3m3
2256
22n
2254
4m7
22n
2252
6255
1N40
03G
P
2253
22n
1N40
03G
P
6254
1N40
03G
P
6253
6256
1N40
03G
P
470n
2250
2251
TO
/FR
OM
AF
BO
AR
D /
DA
C P
AR
T220u
BZ
X79
-C27
6250
1N4003
6252
EH-B
12501
2
3
4
5
6
22K
3253
CD713/CD723/CD753 AF Board Supply part 19980512
AF Board / Supply part
5V~
5V~
-28,5V
-31,4V -27,8V -27,8V
10,7V
5,6V
0,6V
-11,7V
3,9V
-8,3V
3,4V
10,2V
9,5V~
9,5V~
EVMVin Play mode
...DC voltages measured
7-27-2
CS 53 152
AF Board stage .4 19980513
AF Board Componentside view
1250 A1 1251 A4 1252 A1 1255 A1 1256 A1 1502 A4 1503 B4 1504 B1 1505 B4
1506 B1 2250 A1 2251 A2 2252 A1 2253 A1 2254 A2 2255 A3 2256 A1 2257 A1
2258 A2 2259 A2 2501 A3 2502 A3 2503 A4 2504 A3 2505 A4 2506 A4 2507 A3
2508 B3 2511 B2 2512 B2 2513 B2 2514 B1 2515 A3 2516 A4 2521 B2 2522 B3
2523 A3 2524 A4 2527 B4 2540 B4 2541 A4 2543 B4 2544 A4 2545 B4 3251 A1
3252 A1 3253 A1 3254 A2 3255 A1 3256 A2 3257 A2 3258 A2 3260 A3 3500 A3
3501 A2 3502 A4 3503 A4 3504 A4 3505 A3 3506 A3 3507 B2 3508 B2 3509 B3
3510 B3 3511 B2 3512 B2 3513 B2 3514 B2 3515 A3 3527 A2 3532 A2 3533 B4
3534 A3 3535 A3 3537 B2 3538 B3 3539 B2 3540 B1 3541 B2 3542 B2 3543 B1
3544 B2 3545 B1 3547 B1 3548 A2 3550 A4 3552 A4 3553 A4 3556 B4 3557 A1
5801 B4 5803 B4 6250 A1 6251 A1 6252 A1 6253 A1 6254 A2 6255 A1 6256 A1
6257 A2 6258 A1 6259 A2 6260 A3 6500 A2 7250 A1 7251 A3 7252 A2 7500 A3
7501 A2 7504 A2 7505 B2 7507 B1 7508 B1 7509 B1 7510 B1 7511 B4 9253 A1
9254 A2 9256 A2 9257 A2 9258 A2 9262 A3 9263 A3 9264 A3 9265 A3 9266 B3
9267 B1 9269 A2 9270 A3 9272 A4 9274 B4
This assembly drawing shows a summary of all possible versions.For components used in a specific versionsee schematic diagram respectively partslist.
7-3 7-3
CS 53 153
DRIVER
SOURCESCURRENT SINKS/
OUTPUT SWITCHES
DATA ENCODERS
NOISE SHAPERS
OVERSAMPLING
TIMINGAND
CONTROL
FILTERFIR
to h
ead
ph
on
e
to/f
rom
EC
O_S
L
to/f
rom
FR
ON
T
STANDBY
LINE OUT
DIGITAL / OPTICAL OUT
DAC
fro
m E
CO
_SL
1 2 3 4 5 6 7 8 9 10 11 12 13 14
1 2 3 4 5 6 7 8 9 10 11 12 13 14
A
B
C
D
E
F
G
H
A
B
C
D
E
F
G
H
1251 B11252 F141502 G21503 G41504 D14
1505 F71506 B142501 C42502 D42503 C4
2504 D42505 D72506 D52507 B82508 E7
2511 B102512 E102513 D132514 E132515 E4
2516 E42521 A92522 F92523 C22524 D7
2527 F62540 F22541 G32543 H42544 B2
2545 H33500 D23501 D23502 B33503 B3
3504 C33505 C43506 D43507 B83508 E8
3509 B83510 E83511 C93512 D93513 B10
3514 E103515 D43527 C103532 D103533 F5
3534 C103535 D23537 A83538 F83539 B12
3540 C123541 D123542 E123543 B123544 D12
3545 C123547 E123548 E33550 F43552 F4
3553 G43556 G45801 G35803 F66500 F11
7500 C27501 E27502 C77504 C107505-A E9
7505-B B97507 B137508 C137509 D137510 E13
7511-F F4F510 B1F511 B1F512 B1F513 B1
F514 C1F515 C1F516 C1F517 D2F518 C4
F519 C5F520 D5F521 B8F522 E7F523 B8
F524 E7F525 B14F526 B14F527 C14F528 C14
F529 C14F530 D14F531 D14F532 D14F540 G2
F541 G2F542 G2F543 G4F544 G4F545 F7
F546 F7F550 F14F551 G14F552 G14F553 G14
F554 G14F555 G14F556 G14F557 G14
BC337-407510
A
4U7
5803
2545
10n
F523
A
F522
F520
22n
2544
2K2
3527
220R
3537+10V
220u
2521
A
10n
2523
3538
220R
3514
47K
3532
220K
A
2516
10n
2515
47u
A
+5V
3515
100R+5V
F546
F545
3552
10K
22K
3553
F544
F543
F542
F540
F541
13
7
14
12
3556
10R
7511-F74HCU04N
100n
2543
254022u
1
2
3 4
6
7 8
GND
2541 5801
PH-B
1502
1
2
3
1u
YKC21-3564
DIGITAL OUT
OPTICAL OUTpreliminary
15033
2
1
F531
F532
F530
F556
F557
F555
F553
F554
F551
F552
F550
F528
F529
F526
F527
F525
F524
F521
F519
F517
F518
F516
F514
F515
F512
F513
F511
-10V
+10V
F510
3535
5K6
3533
33R
10K
3548
2K2
NJM4560D
7505-A
3
2
1
4
3534
NJM4560D7505-B5
6
7
8
7509
BC337-40
7507BC337-40
7508BC337-40
3542
1K
3547
1K
3544
1K
3545
1K
3541
1K
3540
1K
3539
1K
3543
1K
47u
2527
GNDGP1F32T1505
3
1
2
GND
3503
100R
100R
3504
A
100R
3502
470p
2513
A
A
2K7
3512
3508
4K7
3511
2K7
4K7
3507
+5V
470p
2505
2506
470p
A
47K
3513
A
AA
POWERED
KILLI
STDBY
D
F1
F2
-VKK
+5V
EH-B
12521
2
3
4
5
6
7
8
KILL
+5V
-10V
BC557B
7504
KILL
D
3510
4K747u
2508
A
4
5
A
2507
47u
EH-B
15061
2
3
A
47u
2524
2503
10n
D
4K7
3509
10n
2504
1 2
2502
47u
D D
D
3506
100R
47u
2501
7501BC558C
100R
3505
3501
10K
3500
5K6
7500BC327-40
D
14
VS
SD
9VSSO
1WS
+10V
STDBY
TDA1549T
2BCK
16DATA
5FILTCL6 FILTCR
13NC
3TEST
11VDDA
15
VD
DD
10VDDO
4VOL7 VOR
8VREF
12VSSA
7502
A
+5V
-10V
A
A
A
A
A
A
A
A
A
A
4
3
KILLP
A
A
1N4148
6500
1504
YKC21-3418
1
2
2514
470p
2511
47u
47u
2512
7
220u
2522
EH-B
12511
2
3
4
5
6
3550
100R
CD753 AF Board DAC part 19980527
WS
SHIELD
DOBM
EBU/GND
KILL
+5
BCK
DATA
AF Board / DAC part
5,4V-8,3V
-8,3V
-8,3V
-8,3V
5,4V
0V
0V
4,5V
5,1V
5,0V5,6VPLAY=5,3V
Stand by=0V
PLAY=1,4VStand by=5,5V
PLAY=4,9VStand by=5,6V 2,5V
2,5V
0V
0V
0V
0V
-8,3V
-11,2V
0V
0V
0V
0V
11,2V
EVMVin Play mode
...DC voltages measured
5V
5V
5V
left channel
MS
B
LSB
MS
B
LSB
right channel
TRANSFER OF AUDIO SAMPLES VIA SERIAL INTERFACE
TB 0.5 s/Div
4.23MHz
176.4kHz
DATA
DATA
WORD SELECT
WORD SELECT
CLOCK
CLOCK
7-47-4
CS 53 154
AF Board stage .4 19980513
AF Board Componentside view
1250 A1 1251 A4 1252 A1 1255 A1 1256 A1 1502 A4 1503 B4 1504 B1 1505 B4
1506 B1 2250 A1 2251 A2 2252 A1 2253 A1 2254 A2 2255 A3 2256 A1 2257 A1
2258 A2 2259 A2 2501 A3 2502 A3 2503 A4 2504 A3 2505 A4 2506 A4 2507 A3
2508 B3 2511 B2 2512 B2 2513 B2 2514 B1 2515 A3 2516 A4 2521 B2 2522 B3
2523 A3 2524 A4 2527 B4 2540 B4 2541 A4 2543 B4 2544 A4 2545 B4 3251 A1
3252 A1 3253 A1 3254 A2 3255 A1 3256 A2 3257 A2 3258 A2 3260 A3 3500 A3
3501 A2 3502 A4 3503 A4 3504 A4 3505 A3 3506 A3 3507 B2 3508 B2 3509 B3
3510 B3 3511 B2 3512 B2 3513 B2 3514 B2 3515 A3 3527 A2 3532 A2 3533 B4
3534 A3 3535 A3 3537 B2 3538 B3 3539 B2 3540 B1 3541 B2 3542 B2 3543 B1
3544 B2 3545 B1 3547 B1 3548 A2 3550 A4 3552 A4 3553 A4 3556 B4 3557 A1
5801 B4 5803 B4 6250 A1 6251 A1 6252 A1 6253 A1 6254 A2 6255 A1 6256 A1
6257 A2 6258 A1 6259 A2 6260 A3 6500 A2 7250 A1 7251 A3 7252 A2 7500 A3
7501 A2 7504 A2 7505 B2 7507 B1 7508 B1 7509 B1 7510 B1 7511 B4 9253 A1
9254 A2 9256 A2 9257 A2 9258 A2 9262 A3 9263 A3 9264 A3 9265 A3 9266 B3
9267 B1 9269 A2 9270 A3 9272 A4 9274 B4
This assembly drawing shows a summary of all possible versions.For components used in a specific versionsee schematic diagram respectively partslist.
7-5 7-5
CS 53 155
ROM RAM
VDD
VKK
ConverterA/D
P7 P8 P9
TE
ST
RE
SE
T
DISPLAY-DRIVERS
P4
P5
P1
VSSCLOCK
P2P3
P0
P6
8BIT CPU
GND
OUT
SUPV
to/fr
om E
CO
_SL
to/fr
om A
F
HLIGHT SHUFFLE FADE
PRGM EDIT PEAK STOP
PLAY
PREV PAUSE NEXT CD TEXT
OPEN/CLOSE
CD_SICL
CD_SILD
DGND
CD_PORE
TRAY_SW
TRAY+
TRAY-
CD_DATA
TIMESCROLL
prel
imin
ary
1 2 3 4 5 6 7 8 9 10 11 12 13
1 2 3 4 5 6 7 8 9 10 11 12 13
A
B
C
D
E
F
G
H
I
A
B
C
D
E
F
G
H
I
181 F1182 H1184 E11800 C101810 I61820 F11821 F111822 F111823 F121824 F121825 F121826 F121827 F131828 G111829 G121830 F131831 G121832 G131833 H111834 H121844 G72800 B52801 B112803 I72807 I82808 G22810 I82811 G82812 E32813 H82814 E32815 D103804 H73805 H73806 H63807 H83808 H83809 I73810 E103811 E113812 E103813 F113814 F103815 F103816 F103817 F113818 G113819 G113820 H113821 G103822 E53823 F63829 E23830 E23832 F33833 F33834 F33835 F33836 E23837 G93838 H23841 H23842 H23844 G33845 G33846 G33847 D103848 B43849 B115802 E36801 D56802 D66820 I27800 D67810 H97811 H89800 G10
1
2
3
4
5
6
7
8
9
182
1N41
48
6802
1N4003
6820
3849
4R7
1N41
48
6801
3848
10R
F84
2
F84
3
F84
1
D
F84
0
D
1833 1834
22K
3820
1K3806
1K3821
1K3804
13
P13
12
P14
11
P15
10
P16
9
P2
23
P3
22
P4
21
P5
20
P6
19
P7
18
P8
17
P9
16
1K3805
30
G5
31
G6
32
G7
33
G8
34
G9
35
NC
1
5
NC
2
6
NC
3
7
NC
4
8
NC
5
41
P1
24
P10
15
P11
14
P12
1800
F11
1
F12
2
F21
44
F22
45
G1
27
G10
36
G11
37
G12
38
G13
39
G14
40
G2
28
G3
29
G4
D
14-BT-54GK
FF
C
1 2 3 4
2803
22n
72
73
74
75
76
77
78
79
8
80
9
1810
58 59
6
60 61 62 63 64
65
66
67
68
69
7
70
71
43 44 45 46 47 48 49
5
50 51 52 53 54 55 56 57
29
3
30
31
32
33
34
35
36
37
38
39
4
40
41 42
141516171819 22021222324
25
26
27
28
7800TMP87CP71F
110111213
3847
100R2815
220n
F823
F826
F825
F824
F82
1
F800
F814
F815
F812
F813
F811
F809
F810
F808
F801
F816
F803
F802
F804
F806
F805
F807
F818F817 F820F819
F822
D
D
D
D
1844
CST
D
D
9800
47K
3837
10n
2811
D
D
100n
2813
10n
2810
D
7811
BC
547B
5802
2u2
3846
1K
3836
22K
3844
1K
1K
3845
100n
2812
1K
3842
3841
1K
D
1K
3838
3829
22K
2814
47u
1
2
1K
3822
22n
2808
D
184
1K3816
1K
3814
3815
1K
3818
22K
22K
3817
3823
1K
22K
3819
22K
3830
1820D 3813
1K
1832
3811
1K
1K
3812
1K
3810
1827
1830
1825
18261824
18311829
1823
10u
280128
00
10u
D
D
1K3807
D
D D
3833
1K
1K
3832
3834
1K
1K
3835
DIPMATE
DIPMATE
1811
2
3
4
5
6
7
8
D
2807
100u
47R
3808
100K
3809
1822
1828
1821
+5V
+5V
7810
1
2
3 4
+5V
+5V
+5V
+5V
VC
POWERED
KILLI
STDBY
POWERED
KILLI
STDBY
+5V
+5V
+5V
-VKK
VCG
04
G03
+5V
F2
F1
-VKK
F2F1
VCVC
P05
P04
P03
P02
P01
G10
G11
G12
G13
G14
P16
P15
P14
P13
P12
P11
P10
P09
P08
P07
P06
G02
G01
G01
G02
G03
G04
G05
G06
G07
G08
G09
G12
G11
G10
G09
G08
G07
G06
G05
G04
G03
P13
P12
P11
P10
P09
P08
P07
P06
P01
G14
G13
P02
P03
P05
P04
P16
P15
P14
FRONT BOARD
CD753 Front Board 19980512
4,9V
-18V
4,8V4,8V
4,8V0V
STAND BY
1840
188
GND
7-6 7-6 7-6
CS 53 156
CD753 Front Board stage .4 19980520
Front Board Componentside view
Front Board Copperside view
181 B1 182 B2 184 B3 1800 A3 1810 B1 1820 A1
1821 A5 1822 B5 1823 A5 1824 B5 1825 A6 1826 B6
1827 A7 1828 B7 1829 B7 1830 A8 1831 B8 1832 A4
1833 A4 1834 B4 1844 B4 2800 A1 2801 A4 2803 B1
2807 B2 2808 B1 2810 B5 2811 B4 2812 B3 2813 B4
2814 B3 2815 A3 3804 B4 3805 B4 3806 B3 3807 B4
3808 B2 3809 B5 3810 A5 3811 A5 3812 A5 3813 B5
3814 B5 3815 B5 3816 B5 3817 B5 3818 B5 3819 B5
3820 B4 3821 A4 3822 B3 3823 B2 3829 B4 3830 B2
3832 B1 3833 B1 3834 B1 3835 B1 3836 B2 3837 B4
3838 B1 3841 B1 3842 B2 3844 B1 3845 B1 3846 B1
3847 B2 3848 A1 3849 A3 5802 B3 6801 A2 6802 A2
6820 B2 7810 B3 7811 B5 9800 B4 9801 A3 9802 A3
9803 A5 9804 A4 9805 A5 9806 A6 9807 A6 9808 A7
9809 A7 9810 B2 9811 B2 9812 B2 9813 B2 9814 B4
9815 B3 9816 B4 9817 B4 9818 B5 9819 B1 9820 A1 7800 B3
7800
7800
Left
Right
AGND
-10V
+10V
6.3mm
*
*
*
*
1 2 3 4
1 2 3 4
A
B
C
A
B
C
F607
220u
2602
F608
F606
F604
F605
F602
F603
F601
3609
10R
3608
3604
120R
15K
3607
120R
3605
3603
15K
3602
10K
10K
1611
2
10K
3601
DIPMATE
1621
2
3
4
5
2601
220u
10R
3611
HLJ15401600
1
2
3
2610
100n
2603
22n
2604 1n
2605 1n
7670-ANJM4560D
3
2
1
8
4
3606
10K
7670-BNJM4560D
5
6
7
8
4
VCC
VSS
VCC
VSS
VCC
VSS
+10V
-10V
+10V
-10V
Headphone Board
10,8V
10,8V
-11,7V
0V
0V
0V
0V
0V
0V
-11,7V
* preliminary
3600
-B10
K10
K36
00-A
3600-A B13600-B B1
161 C4162 B11600 B42601 A32602 C32603 A22604 B32605 B32610 C4
3601 C23602 B23603 B33604 B33605 B23606 B23607 B3
3608 B33609 C3
3611 A4
7670-A C37670-B A3
CD753 Headphone Board 1998 05 11
Headphone Board Copperside view 161 B4 162 B2 1600 D2 2601 B2 2602 C3 2603 B3 2604 D3 2605 D1 2610 B4 3600 D4 3601 B4 3602 B4 3603 C2 3604 B2 3605 D2 3606 D3 3607 B3 3608 C1 3609 B3 3611 B1 7670 B3 9600 C4 9601 C4 9602 C4 9603 C4 9604 D4This assembly drawing shows a summary of all possible versions.
For components used in a specific versionsee schematic diagram respectively partslist.
7-7 7-7 7-7
CS 53 157
LS
Vdd
O4
O6
O3
O1
O5
O2I2
I5
I1
I3
I6
I4
DALAS
Vg
Vdd
LDon
MI
Lo
Adj
C
GNDL
Vrfe
Vrf
HG
CD TEXT
1 SEC
4V
during focus search
PDM
for coax out: 3875 = 22R
#Item
yes no9890
47p150p2890
10Rno3894
no180R3897
220270
OUTOUT
3896
OPTCOAX
for COAXIAL OUT version only
not for flap
comm.cath
D1
D5
D3
D2
D4
INNERSWITCH
-
+
-
+
-
-
+
+
CD DRIVEVAM 1201
Track
Focus
MM
SLEDGE
DISC
Do not split cables!
length 30cm
for OPTICAL OUT version only
during speed up play brake
Timing & SyncProtection
CRCCheck
CPU
Inter-
face
32kx8
RAM
M
TRAY
MOTOR
Loaderfor TRAY Version only
for FLAP version only
##
(H = CD-R/W)
(H = Laser On)
CD R/W Front End
WS
SDA
BCLK
TRAY
_SW
SICL
SICL
SILD
SILD
RESET
RESE
T
DATA
DATA
SWITCH
INNERSWITCH
INNERSWITCH
#
NFR: +A = 8 ... 13.5V
PTC: +A = 6 ... 13.5V(only for battery powered versions)
JST EH
TRAY
Break-Away PB OPT OUT
VDD
DQSY
SRDT
SCLK
SW2
SW1
TESTGND
XMODE
MCK
WFCK
SCOR
SBSQ
EXCK
CD-T
EXT
INTE
RFAC
E
only if not CD-TEXT
TURNTABLE
TRAY_SW
TRAY-
TRAY+
KILL
SUPP
LY &
AUD
IO IN
TERF
ACE
CONT
ROL
INTE
RFAC
E
WS
SDA
HF
SLIDE
BCLK
+5V
GND
+A
FOCUS
TRACK
SERVO-DRIVER
MOTOR-DRIVER
RESET
DATA
SILD
KILL
SICL
GND
JST PH
for BLER measurement
CFLG output (open drain)
"L"=dig out, "H"= no dig out
EBU_GND
SHIELD
DOBM
+5V
DOBM (TTL)
GROUND
for Coaxial: for Optical:
JST PH
resistor for flap version only
SHARP TOSLINK
JST EH
1
2
3
4
5
6
JST EH
DQSY
SRDT
uP_CLK
JST FE hor
JST PH
(to versatile pin 63 of decoder IC)
#
#
[7]
1
2
3
4
5
6
7
8
for R
/W: 2
70k
for coax. out: 33R
#
##
#
#
#
[1]
[2]
[3]
[4]
[5]
[6]
[6]
[5]
[4]
[3]
[2]
[1]
# ... for provision only
CD-BOARD (ECO-SL Mk3)
324 5 6 71 8 9 10 11 12 13 14 15 16 17 18 192 20 21 22 23 24 25 26 27 28 293 30 31
L
K
J
O
I
H
G
F
E
D
C
B
A
N
M
L
K
J
O
I
H
G
F
E
D
C
B
A
N
M
324 5 6 71 8 9 10 11 12 13 14 15 16 17 18 192 20 21 22 23 24 25 26 27 28 293 30 31
HF HF HF HF HFHF
L
LL
DA
L
L
L L
L L
L
+5ESD
+5ESD
+4V
+5ESD
SVDDA1
T730
100n
2802
18p
2810
47n
2809
47n
2870
47n
2831
100n
2898
2848
10n
560p
2820
1n5
2823
2n2
2814
15k3806
33k3804
10k3803
3883100
3858100
3818120k
38174k7
5603807
4k7
3882
10k3827
10k3828
10k3829
10k3830
10k3825
382610k
PC74HCU04D7819
F
13 121
PC74HCU04D7819
E
11 101
PC74HCU04D7819
D
9 81
PC74HCU04D7819
C
5 61
PC74HCU04D7819
B
3 41
PC74HCU04D7819
A
1 21
2899
4u7
BC337/407822
LASERON/OFF
7802TDA1302T
16
15
14
13 12
11
10
9
8
7
6
5
4
3
2
124
23
22
21
20
19
18
17
D
D
D D
D
L HF
DA
D
DHF
HF
HF
DA
L
D
D
EBU
D EBU
D
D
D
D
DD
D
D
D
D
D
D
EBUEBUEBU
L
DA
to 3881
from 7860/Pin 41
TRAY_SWTRAY+TRAY-
TRAY_SW
TRAY+
TRAY-
R2
R1
D4
D3
D2
D1
VDDA1
+A_TRAY +A_TRAY
+4V
+5ESD
+4V
+4V
+4V
+4V
+A+5ESD
+4V
+5V
+A
+A
+4V +5V
+4V
+A_TRAY
+4V
+4V
+4V
+5V
DD4
DD5
DD3
DD2
DD1
LD-
HF
V4
LD_ON
47n
2722
1u/1
6V28
65
100n
2869
47p
2845
2861
22p
2862
22p
2856
47n
2857
22n
2858
47p
100n
2853
2851
10n
220p
2830
220p
2829
220p
2828
220p
2827
10n
2839
5n6
2836
2825
220p
2826
220p
2837
560p
2840
1n8
100n
2819
10n
2761
2890
10n
2842
2868
47p
100n
2838
1n2720
47p
2721
10n
2891
100n
2818
100k3857
33k
3895
1k8
3893
33k
3892
1k3891
1k3890
4703721
223898
1003875
3879560
10k
3842
3763
3764220R
220R
220R
3762
100
3860
100
3861
333832
1M3862
22k3856
1k3844
3872100
1k3852
27k38513853
6k8
1k3820
1k2
3839
1k2
3836
39k3843
22k3838
27k3835
1k3815
38376k8
38406k8
3874
10k
3873
10k
3870
10k
3876180
103871
1003864
3896
180
3897
39k3845
1k3846
220
3751
3752
220
220
3865
10k
3867
10k
3866
10k
3868
10k
3869
220
3863
3848 1k
3850 1k
1k3833
220
3859
10k
3819
3753
220
10k
3880
390k
3854
4k73881
473729
10k
3728
4703727
4703726
4703725
4703720
4703723
4703722
4703724
10389910
3894
4k73730
47u
2859
4u7/
16V
2860
2847
47u/
16V
2843
0.47
u
2849
47u/
16V
47u/
16V
2863
4u7/16V
2844
2850
4u7
1u
2892
BC547C
7878
BC54
7B
7877
7821 LC89170M
10
11
12
13
141
2
3
4
5
6
7 8
9
1895YKC21
1804
1890
1
2
31880
1
2
31881
1
2
3
9802
9800
9801
9803
9890
5890920927-152B
1
2
3 4
6
MT
1807
1
2
1803
1
2
1850
12
1820
Leaf Switch
18102
17
1
100u AL045802
10u AL025810
1u AL025804
6888
BZX7
9F2V
4
7855TDA7072A
6
1
2
38
5
input-
input+
GND
+Vp
out-
out+
1720
1
2
3
4
9804
1802
7896
1
2
3
GP1F32T
ICDriver
3R3
3849
3841
3R3
8.46MHz5860
SAA73787860
10
11
12
13
14
15
16
17 18 19
1
20 21 22 23 24 25 26 27 28 29
2
30 31 32
33
34
35
36
37
38
39
3
40
41
42
43
44
45
46
47
48
49
4
50515253545556575859
5
6061626364
6
7
8
9
PINS
MICROPROCESSOR
V1...VV5
INTERFACE
DETECT
PEAK
KILL
MOTO2
MOTO1
WCLK
VDD2PSCLK
SBSY
SFSY
VSS2
MISC
DATA
RCK
SUB
KILL
V5
V4
V3
VSSA1
VSSA3
SELPLL
HFIN
Vref
D3
D2
D1
VSSA2
VRH
IREFT
R2
R1
D4
VRL
VDDA1
ISLICE
DIGITAL
DEMOD.
CORRECTION
ERROR
PROC.
PRE-
EFM
PLL
CONTROL PART
CONTROL
FUNCTION
SRAM
FLAGS
TIMING
CONTROL
MOTOR
INT.
EBU
ADDR.
RAM
VERSATILE
OUTPUT
STAGES
FO
SILD
SL
RAB
TEST
3
SCL
SERI
AL D
ATA
AUDI
OVD
D1P
LDO
N
INTE
RFAC
EPR
OCE
SSO
RSD
A
DOBM
SUBC
ODE
CL4
PRO
CESS
OR
VSS1
VSS3
ADC
IREF
FRO
NT E
NDV2
VDDA
2
V1
TEST
1
CFLG
CRIN
C2FA
IL
CRO
UT
VDD3
C
TEST
2
STAT
US
CL16
RESE
T
CL11
HFRE
F
VSS4
RA
NC
1806
1
2
3
4
5
6
1801
10
11
12
1
2
3
4
5
6
7
8
9
PTC 4R6
3847
TDA7073A7851
14
10
1
2
6
711
3
413
16
9
125
8
15
+
-
VDD
+
-
TDA7073A7852
14
10
1
2
6
711
3
413
16
9
125
8
15
+
-
VDD
+
-
2767
2765
22p
22p
22p
2764
470p
2766
SUPPLY FOR 7819
CD-SL Mk3 (CD R/W & IIs) 19980416
4703771
HF PRE-AMPLIFIER
TO 1804
FROM 1810
2.7V
1.3V1.3V
5.4V
0.4V
1V
5.4V
0V
1.3V
3.8V
4.6V
0V
0.7V
4.1V
0.8V
0.3V
0.5V
2V
2V
10V
2V
2V
2V
3.8V
10V
10V
2V
4V 0V 4V 4V 3.3V
0V
0.2V 3.3V
2V
2V
4V
0V
2V4V2V2V2V1.8V1.8V1.8V1.7V
0V4V2V2V
2V
2V
4.2V
4.2V 5.6V
4.9V
5.6V
10V
10V
4.8V
4.8V
2.4V
2.4V
1
EVMV
eye-pattern
TB=0,5 us/DIV
6
0V
4V
0V 0V
4V
0V 0V
0V
4V
11.2
9MHz
in Play mode
...DC voltages measured
4 2
5
3
1720 J321801 G21802 F321803 G261804 D211806 M21807 H311810 H301820 H321850 C161880 M231881 M271890 M301895 M292720 L272721 L272722 I302761 F282764 E242765 E242766 C262767 E252802 C102809 D82810 D92814 D112818 J32819 J42820 I92823 I92825 I112826 I112827 I112828 I122829 I122830 I122831 G72836 K102837 K92838 E202839 L102840 L92842 E172843 N92844 F142845 E192847 J92848 F52849 M92850 N142851 N92853 N102856 K142857 L152858 K142859 M312860 L152861 L172862 L162863 E172865 H262868 D192869 K192870 G42890 N212891 N292892 M282898 I42899 G43720 I273721 J273722 J273723 K273724 K273725 J303726 J303727 K303728 J313729 I313730 I293751 E193752 E193753 E183762 F223763 F223764 G223771 C263803 D93804 C103806 D93807 C113815 D123817 G43818 F53819 D153820 J33825 H103826 H103827 G103828 G103829 G103830 G103832 E143833 K163835 K10
3836 K103837 K93838 L103839 L103840 L93841 J103842 E153843 N103844 O93845 O103846 O93847 J103848 M143849 M103850 N143851 M103852 N103853 M93854 I143856 J143857 K153858 E73859 E163860 K173861 L163862 K163863 E173864 F213865 E183866 A183867 A183868 A183869 A183870 D193871 E163872 C203873 A193874 A203875 L193876 F283879 F273880 B223881 F113882 E83883 G33890 H293891 G293892 G293893 G293894 M223895 G283896 M223897 N223898 M313899 M295802 G275804 E265810 E295860 L165890 M286888 H307802 E77819 C37819 C47819 C57819 C67819 C77819 D107821 I287822 I57851 J87852 M87855 G287860 F157877 E287878 C197896 M329800 C199801 D159802 G279803 E289804 J209890 N22
7-8 7-8 7-8
CS 53 158
3103 303 3397.2
ECO SL Mk3 (R/W&IIs) Layout stage .2 (19980330)
F
E
D
C
B
A
F
E
D
C
B
A
6 5 4 3 2 1
6 5 4 3 2 1
DISC MOTOR CONNECTION(break away part)
ECO Short Loader Mk3Copperside view
BC...
12
1
1850
98411 3876
7877
9800
3879
2761
9803
5810
7878
2847
FOIL
8820
FOCU
S &
TRAC
KSE
RVO
DRIV
ER
SCREENING
1804
3874
2868
9806
9816
9810
9820
5804
9801
3873
3871
3872
3870
3854
3859
3865
38663867
3868
3869
2856
2863
3752
3753
381938323842
3863
2825
2826
2827
2828
2829
2830
2842 2844
2818
2819
3815
3820
3856
9811
9825
1
9
1
9807
9809
9814
3853
7851
7852
3837
3839
3841
3847
3849
3852
2837
2840
2849
2851
3836
3840
1
1880
3880
3894
9817
9890
1
9804
9821
9840
3881
3896
3897
5860
3724
3751
3860
3864
3875
3763
3762
3764
2838
2845 2858
28692890
3721
3722
3723
3838
98233845
3848
3850
3851
3857
3862
3861
3720
3833
3835
3843
2862
2861
2860
2857
2721
1801
2836
2839
2853 6
9815
9819
9822
9824
98309839
9831
3728
3729
3844
3846
SLIDE & DISC
MOTOR DRIVER
3730
1806
2843
2850
37253726
3727
2722
2720
9
1802
9892
1
1810
9808
9842
9805
1
1
8
1
12
1807
TRAY MOT
ORDRIVER
7855
9802
3892
3893
3895
5802
17203890
3891
6888
2814
2802
2810
3803
3804 7822
3807
3882
9851
3806
3817
3818
38273828
3829
3830
3858
3883
2809
2831
2848
2870
2898
2820
2823
2899
3825
3826
9847 9850
3771
9703
9704
2764
27652766
2767
9705
9701
9702
5
2
3
4
1 6
SICLGND
GNDDOBM
+5V/SHIELD
SILDDATA
RESET
TRAY MOTOR+
-
TRAY_SW
+AGND+5V
WSBCLK
SDAKILL
µP CLKGND
SRDT
INNERSWITCHGNDDISC+DISC-SLIDE+SLIDE-
DQSY
HF-A
MPLI
FIER
HF P
RE-AMPLIFIER
DALAS
SIGNAL PROCESSOR
CD-TEXT
7819
7802
7860
7821
2865
3103
303
339
7.2
6 5 4 3 2 1
DISC MOTOR CONNECTION(break away part)
BC...This assembly drawing shows a summaryof all possible versions.For components used in a specific versionsee schematic diagram respectively partslist.
ECO SL Mk3 (R/W&IIs) Layout stage .2 (19980330)
F
E
D
C
B
A
F
E
D
C
B
A
6 5 4 3 2 1
HF-AMPLIFIER
SIGNALPROCESSOR
7819
7802
7860
2865
CD-TEXT
12
1
1850
9841
1
3876
7877
9800
3879
2761
9803
5810
7878
2847
FOIL
8820
FOCUS & TRACK
SERVO DRIVER
SLIDE &
DISC
MOTOR DR
IVER
SCREENING
1804
3874
2868
9806
9816
9810
9820
5804
9801
3873
3871
3872
3870
3854
3859
3865
38663867
3868
3869
2856
2863
3752
3753
381938323842
3863
28252826
2827
2828
2829
2830
2842 2844
2818
2819
3815
3820
3856
9811
9825
1
9
1
9807
9809
9814
3853
7851
7852
3837
3839
3841
3847
3849
3852
2837
2840
2849
2851
3836
3840
1
1880
3880
3894
9817
9890
1
9804
9821
9840
3881
3896
3897
5860
3724
3751
3860
3864
3875
3763
3762
3764
2838
2845
2858
2869
2890
3721
3722
3723
3838
98233845
3848
3850
3851
3857
3862
3861
3720
3833
3835
3843
2862
2861
2860
2857
2721
1801
2836
2839
2853
CD-TEXT
6
9815
9819
9822
9824
98309839
9831
37283729
3844
3846
3730 18
06
2843
2850
37253726
3727
2722
2720
9
1802
9892
1
1810
9808
9842
9805
1
1
8
1
12 1
807
TRAY MOTOR DRIVER
7855
9802
3892
3893
3895
5802
1720
3890
3891
6888
2814
2802
2810
3803
3804
7822
3807
3882
9851
3806
3817
3818
38273828
3829
3830
3858
3883
2809
2831
2848
2870
2898
HF-AMPLIFIER
2820
2823
2899
3825
3826
9847 9850
3771
9703
9704
2764
2765
2766 2767
9705
9701
9702
Componentside view
5
2
3
4
1 6
SICLGND
GNDDOBM
+AGND+5VWS
BCLKSDAKILL
+5V/SHIELD
SILD
DATARESET
TRAY MOTOR+-
TRAY_SW
µP CLKGND
SRDT
GNDDISC+DISC-SLIDE+SLIDE-
DQSY
INNERSWITCH
17 opt. 1720 C11801 D31802 C61804 E61806 C11807 B21810 B51820 B31850 F61880 D61881 opt. 1890 opt. 1895 opt. 2720 C32721 C32722 C22761 F52764 B52765 B52766 B52767 B52802 F42809 E42810 F32814 F42818 F32819 F32820 D42823 D42825 E42826 E42827 E42828 F52829 F52830 F52831 E32836 D32837 E22838 D52839 D32840 F22842 E52843 D22844 E52845 D52847 F12848 E32849 E12850 D22851 E22853 D32856 E42857 D42858 D42859 opt. 2860 D42861 D42862 D42863 E52865 A12868 F52869 D52870 E32890 D52891 opt. 2892 opt. 2898 F32899 D33720 C33721 C53722 C53723 C53724 C43725 C23726 C23727 C23728 C23729 C23730 C23751 D53752 E53753 E53762 D53763 D63764 D53771 D53803 F43804 F43806 F43807 F43815 E43817 E33818 E33819 E53820 F33825 D43826 D43827 E43828 E43829 E43830 E43832 E53833 D43835 D33836 E23837 E23838 C33839 E23840 F23841 E23842 E53843 C4
3844 D23845 C43846 D23847 E23848 D33849 E23850 D33851 C33852 E23853 E23854 E43856 E43857 D43858 E33859 E53860 D43861 D43862 D43863 E53864 D53865 E53866 E53867 E53868 E53869 E53870 F53871 E53872 F53873 F53874 F63875 C53876 F53879 F53880 D63881 D53882 F53883 E33890 B23891 C23892 C23893 C23894 D63895 B23896 C53897 D63898 opt. 3899 opt. 5802 B25804 F55810 F45860 D45890 opt. 6888 B27802 E47819 F47822 F37851 F27852 D17855 C27860 D57877 F57878 F57896 opt. 9701 C59702 B59703 D59704 B59705 C59800 F59801 E59802 B29803 F49804 C49805 B49806 F59807 E29808 B59809 E39810 E59811 E49814 E29815 D29816 E49817 C69819 D29820 E59821 C49822 C29823 C39824 D29825 E39830 D29831 D29839 D29840 D59841 F59842 B49847 D49850 D39851 F39890 D69892 B6
1890
1
OPTICAL OUT
2859
3898
7896
1890
1 OPTICAL OUT
2859
3898
7896
OPTIONALFOR SETS WITH OPTICAL OUTCopperside view
Componentside view
2892
1895
COAXIAL OUT
118
81
2891
3899
5890
289218
95
COAXIAL OUT
1
1881
2891
3899
5890
OPTIONAL FOR SETS WITH COAXIAL OUTCopperside view
Componentside view
1820
171
2
1820
171
2
OPTIONAL FOR FLAP LOADERSCopperside view
Componentside view
7-9 7-9 7-9
CS 53 159
Press Open/Close
Tray opened ?N
Y
Load discpress play
TOC on display ?N
Y
Check: Supply voltages +A, +5VCommunication lines to µP of apparatus.Motordriver 7855, Safety resistor 3849.Tray mechanism, wiring, tray switch
Slide motor ok ?N
Y
Enter Step 1Focus Search
Laser light ?N
Y
Load disc
Focus ok ?N
Y
Enter Step 2Disc Test
Disc turns ?N
Y
Enter Step 3Radial servo
Radial Servo ok ?N
Y
Enter Service Test Program"CD Servo Test"
remove disc
Leave Service Test Programpress play
Check: Signal processor (7860) Pin 64TS 7822CD Mechanism
Check: Wiring of CD MechanismPower supply of Signal processor (7860)Reference voltage R3850 - GNDOPAMP 7852
Check: Eye Pattern on MP1Signal Processor 7860 Pin 32,33Motordriver 7852CD Mechanism
Check: Signal processor (7860) Pin 27Power supply 7851Motordriver 7851CD Mechanism
Check: Signal processor (7860) Pin 26Motordriver 7851CD Mechanism
A
A
Audio signal ?N
only one channel ?N
Y
Y
Check: DAC (not part of the ECO Shortloader) Check: Communication lines of signal processor 7860 -DACConnector 1802DAC (not part of the ECO Shortloader)
Digital out ?(optional)
N
YConnector 1880Signal Processor 7860 - pin 31
Intermit. failurs ?N
Y
Set OK
Check:
Enter Service Testprogram"CD PLAY TEST"See error table
Enter Service Testprogram"CD PLAY TEST"See error table
TOC on display ?N
Y
BEGIN
END
Faultfinding tree CDSL Mk3(IIs), 060698
Remarks
The following steps have to be done when replacing the CDM mechanism:1. Disconnect old CD drive flexfoil from printed board2. Connect paperclip to CD drive flexfoil to short-circuit flexfoil (fig.1)3. Short-circuit printed board with brass-sheet (4822 321 11197) plugged into the flexfoil connector (fig.2)4. Remove old CD drive5. Position new CD drive in its studs6. Remove short-circuit from printed board connector7. Remove short-circuit from flexfoil of new CD drive8. Connect new flexfoil to print connector (fig.3)
fig.1 fig.2 fig.3
CHARGED CAPACITORS ON THE CD BOARD MAY DAMAGE THE CD-ELECTRONICS WHENCONNECTING A NEW CD DRIVE. THAT´S WHY, BESIDES THE SAFETY MEASURES LIKE• SWITCH OFF POWER SUPPLY• ESD PROTECTIONADDITIONAL ACTIONS MUST BE TAKEN BY THE REPAIR TECHNICIAN.
WARNING
4822 321 11197