This file consists of four separate manuals for four generations of Model 20MC4304/17.
To determine which manual to use, examine the rating label on the back of the unit .
(See example below.)
The first generation product is a 2003 year model.
The second generation is a 2004 year model.
The third generation is a 2005 year model with the serial number beginning with "DD2B"
See Rating Label below.
The fourth generation is a 2005 year model with the serial number beginning with "DD3C".
Click below to link to the approptiate manual:
1st Generation
2nd Generation
3rd Generation
4th Generation
Page 2
Philips Consumer Electronics Company
A Division of Philips Electronics North America Corporation
Technical Service Data
MANUAL 5891
Service Solutions Group
Technical Publications Dept.
P.O. Box 555, 401 E. Old Andrew Johnson Hwy.
Jefferson City,TN 37760
Supplement 3
Sec. 1D: Main Section
( 20MC4304 )
Operating Instructions
Schematic Diagrams and CBA’s
Exploded Views
Cabinet & Electrical Parts Lists
Color TV with Built-In VCR/DVD Player
Service Manual
MAGNAVOX
Model: 20MC4304
Color TV with Built-In VCR/DVD Player
First Issue: 3/04
2004 Philips Consumer Electronics Company
Page 3
IMPORTANT SAFETY NOTICE
Proper service and repair is important to the safe, reliable operation of all
Philips Consumer Electronics Company** Equipment. The service procedures
recommended by Philips and described in this service manual are effective
methods of performing service operations. Some of these service operations
require the use of tools specially designed for the purpose. The special tools
should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and
NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service
methods may damage the equipment. It also is important to understand that
these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Philips could not
possibly know, evaluate and advise the service trade of all conceivable ways
in which service might be done or of the possible hazardous consequences of
each way. Consequently, Philips has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is
not recommended by Philips must first satisfy himself thoroughly that neither
his safety nor the safe operation of the equipment will be jeopardized by the
service method selected.
** Hereafter throughout this manual, Philips Consumer Electronics Company
will be referred to as Philips.
WARNING
Critical components having special safety characteristics are identified
with a # by the Ref. No. in the parts list and enclosed within a broken
line* (where several critical components are grouped in one area) along
with the safety symbol # on the schematics or exploded views.
Use of substitute replacement parts which do not have the same specified
safety characteristics may create shock, fire, or other hazards.
Under no circumstances should the original design be modified or altered
without written permission from Philips. Philips assumes no liability,
express or implied, arising out of any unauthorized modification of
design. Servicer assumes all liability.
* Broken Line
Manufactured under license from Dolby Laboratories. "Dolby"
and the double-D symbol are trademarks of Dolby Laboratories.
Page 4
TABLE OF CONTENTS
Note:
One model, 20MC4304, is covered by Supplement 3. This section only shows what differs between this model and its
base model covered by Section 1B and the Deck Mechanism Section.
This flowchart indicates the disassembly steps for the
cabinet parts, and the CBA in order to gain access to
item(s) to be serviced. When reassembling, follow the
steps in reverse order. Bend, route and dress the
cables as they were.
Caution!
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
[2] H.V. CBA (with Holder)
[4] CRT
[5] Shield Box
[6] DVD Mechanism Unit
[7] DVD Main
CBA Unit
[8] Power Supply/AV CBA
[9] Function CBA
[3] Tray Chassis Unit
[10] Deck Assembly
[11] Main CBA
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[1]
[2]
[3]
PART
Rear
Cabinet
H.V. CBA
(With
Holder)
Tr ay
Chassis
Unit
REMOVE/
*UNHOOK/UNLOCK/
Fig.
No.
RELEASE/UNPLUG/
Note
DESOLDER
1 4(S-1), 1(S-2), 1(S-3)-
Anode Cap, CN501,
2, 3,
CRT CBA, CN571,
5
CN1301, CN2602
CN1802, CN2801,
2, 5
CN2601
1
-
REMOVAL
ID/
LOC.
No.
PAR T
REMOVE/
*UNHOOK/UNLOCK/
Fig.
No.
RELEASE/UNPLUG/
Note
DESOLDER
2-1
2-2
3
-
[7]
[8]
[9]
DVD Main
CBA Unit
Power
Supply/
AV CBA
Function
CBA
2(S-7), CN201,
4
CN301
4(S-8), CN2803,
2, 5
CN2804
2, 5 3(S-9), CN2805-
7(S-10), 1(S-11),
[10]
Deck
Assembly
1(S-12),
2, 5
CL1201, CL1401,
4
CL1402, CL1403
[11]Main CBA 24(S-13)-
↓
(1)
↓
(2)
↓
(3)
↓
(4)
↓
(5)
(1): Order of steps in Procedure. When reassembling,
follow the steps in reverse order.These numbers
are also used as the Identification (location) No. of
parts in Figures.
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connec-
tor, *=Unhook, Unlock, Release, Unplug, or Desol-
der
2(S-2) = two Screw (S-2)
(5): Refer to the following "Reference Notes in the
Table."
Reference Notes in the Table
Caution !
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[4]CRT 3 4(S-4)-
[5]Shield Box 2 5(S-5)-
[6]
DVD
Mechanism
Unit
CN2401, CN2402,
2, 5
3(S-6)
Reference Notes in the Table
CAUTION 1: Discharge the Anode Lead of the CRT
with the CRT Ground Wire before removing the Anode
Cap.
-
1-3-1TD901DC
Page 10
1. Disconnect the following: Anode Cap, CN501, CRT
CBA, CN571, CN2602, and CN1301.
Then remove H.V. CBA (with Holder).
CAUTION 2: Electrostatic breakdown of the laser
diode in the optical system block may occur as a
potential difference caused by electrostatic charge
accumulated on cloth, human body etc., during
unpacking or repair work.
To avoid damage of pickup follow these procedures.
2-1. Short the three short lands of FPC cable with sol-
der before removing the FFC cable (CN201) from
it. If you disconnect the FFC cable (CN201), the
laser diode of pickup will be destroyed. (Fig. 4)
S-1
2-2. Disconnect connector (CN301). Remove two
screws (S-7) and lift the DVD Main CBA Unit.
(Fig. 4)
CAUTION 3: When reassembling, confirm the FFC
cable (CN201) is connected completely. Then remove
the solder from the three short lands of FPC cable.
(Fig. 4)
4. Remove screws 7(S-10), 1(S-11), and 1(S-12).
Then, desolder connectors (CL1201, C1401,
CL1402, CL1403) and lift up the Deck Assembly.
S-1
S-1
S-2
S-3
[1] REAR CABINET
S-1
Fig. 1
1-3-2TD901DC
Page 11
S-5
S-5
[5] Shield Box
S-6
S-8
S-9
S-9
[9] Function
CBA
S-8
S-6
S-6
S-5
[6] DVD
Mechanism
Unit
S-8
[11] Main
CBA
[8] Power
Supply/
AV CBA
S-10
S-10
[3] Tray Chassis Unit
[10] Deck
Assembly
H.V. CBA
S-10
S-13
S-12
S-13
S-11
[2] H.V. CBA
(wih Holder)
Fig. 2
1-3-3TD901DC
Page 12
Anode Cap
S-4
S-4
[4] CRT
CRT CBA
S-4
S-4
Fig. 3
1-3-4TD901DC
Page 13
S-7
CN201
S-7
[7] DVD Main CBA Unit
CN301
A
DVD Mechanism
B
Short the three short lands by soldering
Connector
View for A
Slide
View for B
C
Pickup Unit
OR
Short the three short
lands by soldering
FPC Cable
View for C
Fig. 4
1-3-5TD901DC
Page 14
DVD MAIN CBA
FACTORY USE
ONLY
ANODE
CRT
GND
CL501
CN501
FUNCTION CBA
CRT CBA
SCREEN
FOCUS
CL504A
TO SPEAKER
CN2801
CN2805
CN1805
CN2401
MAIN CBA
CL1403
CL1401
CN601
CN2402
CN401
CN2601
AC CORD
POWER SUPPLY/
AV CBA
CN2803
CN1804
CN2602
CN2804
CN1803
CL503A
CL502A
CL501A
H.V. CBA
TO SPEAKER
CN571
CN1802
CL1201
FE HEAD
CYLINDER
ASSEMBLY
CL1402
CN1301
AC HEAD
ASSEMBLY
DECK ASSEMBLY
CAPSTAN
MOTOR
TUNER
Fig. 5
1-3-6TD901DC
Page 15
BLOCK DIAGRAMS < TV/VCR Section >
Servo/System Control Block Diagram
TO
POWER
TO
CHROMA
BLOCK
SUPPLY BLOCK
TO
Hi-Fi AUDIO
BLOCK
TO
AUDIO BLOCK
TO
VIDEO BLOCK
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
TEST POINT INFORMATION
KEY0
KEY1
IC1201
(SERVO/SYSTEM CONTROL)
5
6
AL+5V
KEY SWITCH
SW1201 SW1203,
SW1206 SW1210
SDATA
52
(MEMORY)
IC1202
RS1201
REMOTE
14
REMOTE
SCLK
51
SCL
SDA
6
5
SENSOR
72
71
SCL
SDA
DVD-REMOTE
CS
25
50
CS7
REC
SW1211
33
45
C-OPEN
2
I
REC-SAFETY
REC-LED
21
D1224 S-LED
D1204 REC
AL+5V
AFT
SCL
SAFETY
Q1207
SDA
C-SYNC
8
74
AFT
C-SYNC
DVD-H
48
D1216 DVD
P-ON+5V
D-REC-H
TV/VCR-LED
26
Q1211
D1217
TV/VCR
P-ON-H
P-DOWN
DVD-MAIN-POWER
84
31
42
P-ON-H
P-DOWN
DVD-MAIN-POWER
CTL-AMP-OUT
CTL(-)
CTL(+)
94
95
97
Q1210
TP1201
CTL-AMP-OUT
WF3
AL+5V
LD-SW
SW1212
SDA
LD-SW1
SCL
A-MUTE
Hi-Fi-H-SW
NORMAL-H
ST/SAP-MODE
4
22
19
ST/SAP-IN
Hi-Fi-H-SW
NORMAL-H
ST-SENS.
END-SENS.
9
7
JACK-MUTE
DVD-A-MUTE
69
DVD-A-MUTE
T-REEL
80
T-REEL
Q1206
A-MUTE
D-REC-H
44
65
67
A-MUTE
D-REC-H
JACK-MUTE
RESET
34
Q1205
RESET
TIMER+5V
EXT-H
DVD-H
VOL-CONT
11
VOL-CONT
CL1201
V-H-SW
ENV-DET
16
V-H-SW
C-FG
C-F/R
87
66
P-ON+5V
P-ON+12V
1P-ON+12V(2)
4
3C-FG
2P-ON+5V(3)
DV-SYNC
REC/EE/PB
27
13
17
ENV-DET
DV-SYNC
REC/EE/PB
C-CONT
76
5C-CONT
6
ROTA
V-ENV
15
10
ROTA
V-ENV
LD-CONT
D-CONT
827790
7LD-CONT
8D-CONT
RF-SW
SP/LP/SLP
18
RF-SW
D-PFG
9D-PFG
10M-GND
EXT-H
RENTAL
28
29
30
EXT-H
RENTAL
SP/LP/SLP
D/L+15V
11D/L+12V
12D/L+15V
SPL-PLAY
32
SPL-PLAY
MAIN CBA
55KEY1
KEY SWITCH
CN1804
12SDATA
13SCLK
12
131415
CN2803
Q2622
Q2621
CN2402
20 SDATA
21 SCLK
TO
DVD SYSTEM
CONTROL
14CS
15
DVD-REMOTE
Q2623
DVD-REMOTE
18 CS
22
/SERVO BLOCK
<DVD SECTION>
CN401
POWER SUPPLY / AV CBA
CN1805
CN2805
FUNCTION CBA
SW2401 SW2408
Servo/System Control Block Diagram
CL1402
5CTL(+)
)
ASSEMBLY
AC HEAD ASSEMBLY
CONTROL
(DECK
6CTL(-)
HEAD
1-4-1
END-SENS.
Q201
ST-SENS.
Q202
SENSOR CBA
(END-SENSOR)
CAPSTAN MOTOR
SENSOR CBA
(ST-SENSOR)
CYLINDER ASSEMBLY
PG
SENSOR
C-F/R
M
CAPSTAN
MOTOR
M
DRUM
MOTOR
FG-GND
M
LOADING
MOTOR
TD901BLS
Page 16
Video Block Diagram
Q1402
BUFFER
REC VIDEO SIGNAL PB VIDEO SIGNALMODE: SP/REC
DELAY
CCD 1H
45474944
LUMINANCE
SIGNAL PROCESS
DOC YNR Y/C COMB
CHROMINANCE
SIGNAL PROCESS
AGC
AMP
P
R
74
DET
ENV
HPF
SP
EP
L
R
L
R
WF6
TP1403
HA-MONITOR
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
TEST POINT INFORMATION
WF2
X1401
3.58MHz
MAIN CBA
Q1401
BUFFER
IC1401
VIDEO/AUDIO
WF5
V-OUT
TP1402
VXO
62 61
35
6dB
AMP
CHARA
SIGNAL PROCESS
MIX
WF4
FBC
ENV-DET
82
RF-SW
TP1401
WF1
13
15
RF-SW93V-ENV
V-H-SW
TO
SERVO/SYSTEM
CONTROL BLOCK
94
ENV-DET
88
89
90
91
Y/C
MIX
CL1401
V-COM
V(R)-1
RP
V-AGC
SP/LP/SLP
REC/EE/PB
42
361671
42
RENTAL
38
DV-SYNC
ROTA
SPL-PLAY
14
39
73
59
987
V(L)-1
V-COM
V(L)-2
654
838485
V(R)-2
V-OUT
TO
VIDEO
TV-
EXT-V-IN
CHROMA
BLOCK
TU1001
(TUNER UNIT)
17
VIDEO
JK1701
VIDEO-IN
1-4-2
RENTAL
EXT-H
DV-SYNC
ROTA
SPL-PLAY
REC/EE/PB
TO
SERVO/SYSTEM
CONTROL BLOCK
SP/LP/SLP
VIDEO (L)-1 HEAD
VIDEO (L)-2 HEAD
VIDEO (R)-1 HEAD
CYLINDER ASSEMBLY
(DECK ASSEMBLY)
VIDEO (R)-2 HEAD
TD901BLV
Page 17
Audio Block Diagram
SP2801
SPEAKER
L-CH
1
CL2801
CN2801CN2805
SP-GND2
SP-L
22SP-L
TO
SERVO/SYSTEM
CONTROL BLOCK
DVD -H
JACK-MUTE
FUNCTION CBA
CN1804CN2803
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
CN1805
DATA(AUDIO) SIGNAL
DVD AUDIO SIGNAL
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
TEST POINT INFORMATION
DVD-A-MUTE
PB-AUDIO SIGNAL
MAIN CBA
SPEAKER
R-CH
SP1802
CL1802
CN1802
SP-R1
SP-GND2
15
IC1802
(OUTPUT SELECT)
2
1
Q1212
14
12
13
AL+5V
JK1801
HEADPHONE
JACK
7
IC1801
(AUDIO AMP)
5
SW CTL.
A-OUT(R)
A-OUT(L)
TO
Hi-Fi AUDIO
212
1110
BLOCK
DC VOL.
Q1803
TO SERVO/SYSTEM
CONTROL BLOCK
VOL-CONT
6
(AUDIO SIGNAL PROCESS)
IC1401
N-A-IN
WF7
TP1802
ALC
78
76
N-A-OUT
NA-IN-YCA
96
MUTE
LINE
AMP
R
100
1
EQ
4
80
P
2
AMP
SP/LP-ON
3
Q1872
BIAS
OSC
REC
AUTO
98
AMP
7
6
BIAS
99
Q1871
Q1873
WF8
EXT-H
D-REC-H
P-ON+5V
P-ON+5V
Q1875
7112
11
Q1874
TO SERVO/SYSTEM
CONTROL BLOCK
EXT-H
A-MUTE
D-REC-H
REC-AUDIO SIGNAL
DVD-AUDIO(R)
DVD-AUDIO(L)
DVD-A-MUTE
JACK-OUT(R)
JACK-OUT(L)
88
77
55
44
1111JACK-MUTE
1010
7
Q2207
IC2201
(OP AMP)
6
21
WF19
CN2401
4 DVD-AUDIO(R)
TO DVD
DVD-A-MUTE
6 DVD-AUDIO(L)
1 SPDIF
7
AUDIO BLOCK
<DVD SECITON>
CN601
WF20
BUFFER
Q2205
JK2201
DIGITAL
A-OUT
(COXIAL)
A-OUT(L)
Q2202
A-OUT(R)
Q2204
1-4-3
AV CBA
POWER SUPPLY /
TO
Hi-Fi AUDIO
BLOCK
CL1402
AE-H
A-COM
A-PB/REC
431
AC HEAD ASSEMBLY
AUDIO
HEAD
AUDIO
BLOCK DIAGRAM FOR SECTION 2 (DECK MECHANISM)
AE-H/FE-H
2
ERASE
HEAD
CL1403
FE-H
FE-H-GND
1
2
FE HEAD UNIT
FULL
ERASE
HEAD
TD901BLA
Page 18
Hi-Fi Audio Block Diagram
TO
SERVO/ SYSTEM
CONTROL BLOCK
SDA
SCL
REC-AUDIO SIGNALPB-AUDIO SIGNAL
37
SERIAL
DATA
38
DECODER
P-ON+9V
54
RIPPLE
FILTER
TO SERVO/SYSTEM
ST/SAP-MODE
40
MODE
TO
CONTROL BLOCK
N-A-IN
A-OUT (L)
NORMAL-H
Q1701
4
23
OUT
ENV
DET
AUDIO BLOCK
TP1702
A-OUT (R)
Hi-Fi-LHi-Fi-R
TP1701
80
78
77139
TO
SERVO/SYSTEM
CONTROL BLOCK
A-MUTE
Hi-Fi-H-SW
26
49
CYLINDER
ASSEMBLY
Hi-Fi
A(R)3
CL1401
Hi-Fi-
24
R
AUDIO
(R) HEAD
-COM 2
Hi-Fi
A(L)1
Hi-Fi-
27
L
Hi-Fi
AUDIO
(L) HEAD
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
MAIN CBA
CONT
SAP
DET
SAP
SAP
SIF
MATRIX
dBX
DEC
ST/SAP
SW
L-R
DEMOD
FILTER
DEMOD
DC
DEMOD
PILOT
62 63
STEREO
CANCEL
FILTER
PILOT
DET
STEREO
PLL
R-CH BPF
COMP
SW
NOISE
P
R-CH
PNR
LPF
VCO
LIMDEV
R
L-CH
SW
PNR
34 33
LIM
L-CH BPF
COMP
NOISE
P
DO
DET
COMP
OUTPUT
SELECT
LPF
VCO
LIMDEV
R
48 47
R-CH
INSEL
NOR
SW
HOLD
PULSE
13 14
L-CH
MATRIX
NOISE
INSEL
DET
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
TEST POINT INFORMATION
IC1751(MTS/ SAP/ Hi-Fi AUDIO PROCESS/ Hi-Fi HEAD AMP)
57
BUFFER
Q1010
7
SIF
TU1001
(TUNER UNIT)
1-4-4
JK1703
AUDIO-IN(R)
69
JK1702
AUDIO-IN(L)
6
N-A-OUT
TO
AUDIO BLOCK
7
TD901BLH
Page 19
Chroma Block Diagram
DVD VIDEO SIGNAL
PB VIDEO SIGNAL
TO POWER
SUPPLY BLOCK
+5V CTRL
27
TO
VIDEO BLOCK
EXT-V-IN
V-OUT
TV-VIDEO
20
25
23
TO DIGITAL
CN2401
Q2210
CN2804
CN1803
29
SIGNAL PROCESS
BLOCK
<DVD SECTION>
DVD -Y12
DVD -C10
Q2211
BUFFER
1515DVD- C
1414DVD- Y
28
CN601
BUFFER
X1301
TP2204
WF18
WF17
3.58MHz
18
VXCO
DVD-C
DVD-Y
TP2203
TO
CRT/H.V. BLOCK
CN503
CN1301
RED
FBP3
GREEN11
BLUE
H-DRIVE4
ACL/ABL
V-DRIVE8
POWER SUPPLY/AV CBA
12
10
453
2
7
V-RAMP-FB
5
WF9
40
41
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
REC VIDEO SIGNAL
+8V
MAIN CBA
30
IC1301 (CHROMA/DEFLECTION SIGNAL PROCESS)
31
+5.7V
REG.
14
SERIAL
I/F
15
VCR
LINE
TUNER
INTELLIGENT
MONITORING
6
IC1802
S-C
S-Y
VCR
LINE
TUNER
CHROMA
BPF
CHROMA
TRAP
SYNC
SEPARATION
16
5
3
VCR
DVD
(OUTPUT SELECT)
4
SWCTL
FILTER
TUNING
9
CHROMA
SIGNAL
LUMA
SIGNAL
PROCESS
CIRCUIT
PROCESS
CIRCUIT
H-SYNC
PROCESS
CIRCUIT
V-SYNC
PROCESS
CIRCUIT
56
CV-IN
OSD MIX/RBG MATRIX/
BLIGHT/DRIVE AMP/
HV BLANKING
13
10
11
12
62
63
64
OSD-B
OSD-R
OSD-G
OSD-BLK
8
9
595860
V-SYNC
H-SYNC
WF15
WF16
34
35
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
TEST POINT INFORMATION
TU1001
9
13
10
SCL
FSC
SDA
(TUNER UNIT)
16
AFT
SCL
TO
SDA
C-SYNC
SERVO/
SYSTEM
1-4-5
AFT
CONTROL
IC1201 (OSD)
Q1806
D-REC-H
BLOCK
TD901BLC
Page 20
CRT / H.V. Block Diagram
DVD VIDEO SIGNAL
REC VIDEO SIGNALPB VIDEO SIGNAL
L551
IC551 (V-DEFLECTION CONTROL)
D.Y.
WF11
THERMAL
V-
DRIVEH-DRIVE
5
4
5
PROTECTION
AMP
7
1
3
1
PULSE
UP
CN571
T572
V501
CRT
ANODE
JK501
CL501CL501A
ANODE
3
FOCUS VR
F
HV
6
S
11
FOCUS
SCREEN
SCREEN VR
810796
HEATER11
+180V33
H.V. CBA
T571 F.B.T.
1
3
5
4
FOCUS
SCREEN
GND
WF13WF14
RED AMP
Q503,Q506
RGB
BLUE AMP
Q501,Q504
GREEN AMP
Q502,Q505
HEATER
WF12
GND
CN501A
CRT CBA
Q591
:INDICATES A TEST POINT WITH A JUMPER WIRE ACROSS A HOLE IN THE PCB.
:USED TO INDICATE A TEST POINT WITH A COMPONENT LEAD ON FOIL SIDE.
:USED TO INDICATE A TEST POINT WITH NO TEST PIN.
:USED TO INDICATE A TEST POINT WITH A TEST PIN.
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
TEST POINT INFORMATION
(WIRE IS SOLDERED DIRECTLY.)
H.DRIVE
Q571
WF10
H.OUTPUT
J521
+B
CL502A
+B7
785
CL502B
CN502
5+B
TO
POWER
8+B
6+B
SUPPLY
J535
5 DEF+B
3 DEF+B
BLOCK
CN2602
GND
JUNCTION-B
CBA
CL503A
V-DRIVE8H-DRIVE
8
CL503B
V-DRIVE8H-DRIVE4FBP
CN503
TO
GREEN
FBP
ACL/ABL
V-RAMP-FB
4
3
7
5
5
374
ACL/ABL
V-RAMP-FB
357
CHROMA
BLOCK
CN1301
CL504A
4
RED12GREEN11BLUE
CN503CL504B
TO
CHROMA
BLUE
234 RED
2
3
10
BLOCK
CN1301
JUNCTION-A
CBA
1-4-6
TD901BLCRT
Page 21
Power Supply Block Diagram
TO CHROMA
BLOCK
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
P-ON+5V
IC1602
+5V REG.
CN2602 TO CN502
P-ON+5V
SW+5V
Q1608
5+B
6+B
Q1611
BLOCK
CRT/H.V.
TO
3 DEF+B
P-ON+5V
SW+5V
Q1613
Q2609
Q2606
P-ON+5V
+5V-CTRL
SW+5V
CN2804CN1803
Q2614
AL+33V
D/L+15V
99AL+33V
1919D/L+15V
P-ON+12V
TIMER+5V
P-ON+9V
44P-ON+9V(1)
88AL+5.7V
1010P-ON+12V(1)
Q2613
AL+5V
P-ON+12V
Q1612
66P-ON+9V(2)
1818P-ON+12V(2)
P-DOWN
(TO PIN84 OF IC1201)
CN2803CN1804
Q2607
P-ON-H
(TO PIN31 OF IC1201)
P-ON+9V
DVD-MAIN-POWER
(TO PIN42 OF IC1201)
DVD-MAIN-POWER
99P-ON-H
22P-ON+9V(3)
1616
1919AC-DOWN
Q2605
EV+1.5V
EV+3.3V
DVD-ON+5V
AL+9V
DVD-ON+3.3V
PWRCON
TO DVD SYSTEM
CONTROL
/SERVO BLOCK
<DVD SECTION>
DVD MAIN CBA UNIT
MAIN CBA
33EV+1.5V
22EV+1.5V
11EV+1.5V
44EV+3.3V
55EV+3.3V
1717DVD-ON+3.3V
1313DVD-ON+5V
1414AL+9V
1515AL+9V
1919PWRCON
CN2402CN401
4
REG.
+1.5V
IC2602
Q2615
12
REG.
+3.3V
IC2603
12
Q2608
IC2604
Q2617
4
REG.
POWER SUPPLY/AV CBA
Q2611
Q2610
Q2612
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE,
REPLACE ONLY WITH SAME TYPE 4 A, 125V FUSE.
CAUTION:
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE MÊME TYPE DE 4A, 125V.
12
16
15
5
SWITCHING
RECTIFIER
FILTER
141113
CN2601
DEGAUSSING
COIL
PS2601
4A 125V
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
T2601
CAUTION !
Fixed voltage power supply circuit is used in this unit.
If Main Fuse (F2601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
7
Q2601
D2603 D2606
L2601
4A 125V
F2601
4A/125V
W2601
BRIDGE
LINE
Q2604
FEED
+B ADJ
1
4
BACK
23
COLD
VR2601
92
10
3
IC2601
ERROR
VOLTAGE DET
HOT
Q2602
1-4-7
TD901BLP
Page 22
BLOCK DIAGRAMS < DVD Section >
DVD System Control / Servo Block Diagram
TO SERVO
18 CS
CN401
54CS
/SYSTEM CONTROL
BLOCK
<TV/VCR SECTION>
CN2402
DVD-REMOTE
20 SDATA
21 SCLK
22
55
61
53
TO POWER
SUPPLY BLOCK
<TV/VCR SECTION>
63
SLED SERVO SIGNALSPINDLE SERVO SIGNAL
FOCUS SERVO SIGNALTRACKING SERVO SIGNAL
IC101
(MICRO CONTROLLER)
EXT CLOCK
CLK33M
BE CLOCK
92
172
170
IC451
(CLOCK GENERATOR)
36.864MHz
X451
7
X'TAL
MULTI
OSC
OSC
PLL
1/4
3
SCLK
SD ATA
REMOTE
DVD-
TRACKING
ADAC-MD
A-MUTE
FSEL
51
50 ADAC-MC
96 ADAC-ML
95
17
8
14
FOCUS DRIVE
152
27
26
25
-+
+
-
DRIVE
150
123
24
-
+
-
+
SPDL
71
4
+
-
+
-
PWRCONPWRCON
SLD
70
6235
IC461
-
+
+3.3V
RESET68
RESET
54
TRAY-OUT
97
TRAY-IN
FG-IN
60
66
DVD MAIN CBA UNIT
SLED
MOTOR
17
CN301
DRIVE
18
3SP(+)
4SP(-)
5TRAY-OUT
6TRAY-IN
7GND
8SL(-)
9SL(+)
IC202
(OP AMP)
1FG-IN
1214
PLL2
1/4
15
SPINDLE
MOTOR
FOCUS
ACTUATOR
DRIVE
TRACKING
ACTUATOR
IC301
(SERVO DRIVE)
15
16
10
DRIVE
14
13
DRIVE
12
11
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
" " = SMD
A-MUTE
ADAC-MD
PCM-SCLK
TO DVD/ AUDIO
ADAC-MC
BLOCK
ADAC-ML
1-4-8
FS(+)
FS(-)
TS(+)
TS(-)
TO DIGITAL SIGNAL
PROCESS BLOCK
TRAY-OUT
DRIVE CBA
TRAY-IN
SPINDLE
MOTOR
M
SLED
MOTOR
M
FG CBA
FG
SENSOR
TD901BLDS
Page 23
Digital Signal Process Block Diagram
TO DVD
AUDI O
BLOCK
SPDIF
PCM-BCK
PCM-DATA0
PCM-LRCLK
181
175
176
174
" " = SMD
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
AUDI O
I/F
DATA
ROM
INST.
ROM
DATA
ROM
INST.
ROM
DATA
ROM
INST.
ROM
SERIAL
GENERAL
I/O
INTERRUPT
DSP
DECODER
FOCUS SERVO SIGNALTRACKING SERVO SIGNAL
PIXEL
OPERATION
I/O
PROCESSOR
CPU
I/F
CONTROLLER
TO CHROMA
1DVD-Y
CN601
158
Y
D/A
TIMER
BLOCK
3DVD-C
NTSC/PAL
VIDEO
CN2401
<TV/VCR SECTION>
164
C
D/A
ENCODER
I/F
WATCH DOG
TIMER
32BIT CPU
BCU
DATA
INST
DEBUG
CACHE
CACHE
IC103 (FLASH ROM)
~
~
293638
45
EXADT (0-15)
IC105 (LATCH)
EXADT (0-15), EXADR (16-19)
FLASH
ROM
EXADR (0-7)
~
12
19
D TYPE
LATCH
~
2
9
EXADT (0-7)
~
~
1
9
162548
EXADR (16-19)
12
D TYPE
IC104 (LATCH)
2
EXADR (0-15)
EXADR (8-15)
~
19
LATCH
~
9
EXADT (8-15)
DATA(AUDIO) SIGNAL
210
DATA(VIDEO/AUDIO) SIGNALDVD VIDEO SIGNAL
~~
242760
IC102 (SDRAM)IC101 (MICRO CONTROLLER)
STREAM
I/F
DECODER
I/F
ECC
EXTERNAL
MEMORY
I/F
~~~
2
~~~
2
66
SDRAM
SDRAM DATA(0-31)
13
184
205
SDRAM DATA(0-31)
1331567485
SDRAM ADDRESS(0-10)
~
235
SDRAM ADDRESS(0-10)
247
256
124
125
122
DMA
RF
123
CN201
C6
DVD/CD
FORMATTER
SIGNAL
PROCESS
128
129
D7
CIRCUIT
126
127
A8
B5
DETECTOR
UMAC
BCU
131
F10
130
E2
CD/DVD 9
READ
MEMORY
32BIT
INST.
ROM
135
AMP
Q253,Q254
CN201
CD-LD 12
CPU
133
AMP
DVD-LD 14
DATA
132
PD-MONI 13
ROM
134
Q251, Q252
15
16
11
GND(LD)
GND(CD-PD)
GND(DVD-PD)
CPU
I/F
WATCH DOG
TIMER
TIMER
INTERRUPT
CONTROLLER
EXADT (0-15), EXADR (16-19)
CD/DVD
78
FROM DVD SYSTEM
CONTROL/SERVO
BLOCK
6
IC201
(SW)
4
1 3
CDDVD
FS
TS
FS(+)
CN201
FS(+) 18
FS(-)
FS(-) 19
TS(+)
TS(+) 20
TS(-)
DVD MAIN CBA UNIT
TS(-) 17
PICK-UP
UNIT
1-4-9
TD901BLD
Page 24
DVD Audio Block Diagram
>
DVD AUDIO SIGNAL
DATA(AUDIO) SIGNAL
7
L-CH
LPF+AMP
DAC
CN601
8
R-CH
LPF+AMP
DAC
TO AUDIO BLOCK
<TV/VCR SECTION
CN2401
7 DVD-AUDIO(L)
9 DVD-AUDIO(R)
6 DVD-A-MUTE
12 SPDIF
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
" " = SMD
IC601 (AUDIO DAC)
ENHANCED
4X/8X
OVERSAMPLING
123
PCM-BCK
SPDIF
TO
DIGITAL
SIGNAL
MODULATOR
MULTI-LEVEL
DELTA-SIGMA
/FUNCTION
CONTROLLER
DIGITAL FILTER
PORT
SERIAL
PCM-DATA0
PCM-LRCLK
PROCESS
BLOCK
SERIAL
131415
ADAC-MD
ADAC-MC
ADAC-ML
SYSTEM CLOCK
CONTROL
16
TO
DVD SYSTEM
CONTROL
/SERVO
BLOCK
PCM-SCLK
A-MUTE
DVD MAIN CBA UNIT
1-4-10
TD901BLAD
Page 25
SCHEMATIC DIAGRAMS / CBA’S AND TEST POINTS
Standard Notes
WARNING
Critical components having special safety characteristics are identified with a # by the Ref. No. in the parts
list and enclosed within a broken line* (where several
critical components are grouped in one area) along
with the safety symbol # on the schematics or
exploded views.
Use of substitute replacement parts which do not have
the same specified safety characteristics may create
shock, fire or other hazards.
Under no circumstances should the original design be
modified or altered without written permission from
Philips Consumer Electronics Company. Philips
assumes no liability, express or implied, arising out of
any unauthorized modification of design. Servicer
assumes all liability.
* Broken Line :
Capacitor Temperature Markings
Mark
(B)
Capacity
change rate
±10%
(F)+30 - 80%20°C–25~+85°C
(SR)
(Z)
±15%
±22.5%
Capacitors and transistors are represented by the following symbols.
< PCB Symbols >
(Top View) (Bottom View)
(Bottom View)
E C B
(Top View)
E C B
(Top View)
E C B
+
Transistor or Digital Transistor
NPN Transistor
NPN Digital Transistor
Standard
temperature
20°C-25~+85°C
20°C–25~+85°C
20°C–25~+85°C
Electrolytic Capacitor
(Top View)
E C B
(Top View)
E C B
Temperature
range
PNP Transistor
PNP Digital
Transistor
Notes:
1. Do not use the part number shown on these drawings for ordering. The correct part number is shown
in the parts list, and may be slightly different or
amended since these drawings were prepared.
2. To maintain original function and reliability of
repaired units, use only original replacement parts
which are listed with their part numbers in the parts
list section of the service manual.
3. Prefix symbol "CN" means "connector" (can disconnect and reconnect).
Prefix symbol "CL" means "wire-solder holes of the
PCB" (wire is soldered directly).
4. How to read converged lines.
1-D3
Distinction Area
Line Number
(1 to 3 digits)
Examples:
(1). "1-D3" means that line number "1" goes to area
"D3."
(2). "1-B1" means that line number "1" goes to area
"B1."
5. All resistance values are indicated in ohms
3
(K=10
, M=106).
6. Resistor wattages are 1/4W or 1/6W unless otherwise specified.
7. All capacitance values are indicated in µF
-6
(P=10
µF).
8. All voltages are DC voltages unless otherwise
specified.
9. Voltage indications for PLAY and REC modes on
the schematics are as shown below
< DVD Section >
231
5.0
The same voltage for
both PLAY & STOP modes
<
TV/VCR Section >
231
5.0
The same voltage for
PLAY, REC & DVD
modes
< Schematic Diagram Symbols >
Digital Transistor
3
AREA D3
2
1
5.0
(2.5)
Indicates that the voltage
is not consistent here.
5.0
(2.5)
[ ]
Indicates that the voltage
is not consistent here.
AREA B1
1-D3
ABCD
PLAY mode
STOP mode
PLAY mode
REC mode
DVD mode
1-B1
Unit: Volts
1-5-1SC_5
Page 26
Main 1/5 Schematic Diagram Parts Location Guide
Ref No.PositionRef No.Pos i t i onRef No.Pos itionRef No.Pos i t i on
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F2601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
4A 125V
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER
SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT
SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
VR2601
+B ADJ
WF20
PIN 1
OF CN2401
WF19
PIN 6
OF CN2401
WF17
TP2203
DVD-Y
WF18
TP2204
DVD-C
1-5-23
1-5-24
BTD850F01022A
Page 40
Power Supply / AV CBA Bottom View < TV/VCR Section >
CAUTION !
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F2601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
4A 125V
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
BECAUSE A HOT CHASSIS GROUND IS PRESENT IN THE POWER
SUPPLY CIRCUIT, AN ISOLATION TRANSFORMER MUST BE USED.
ALSO, IN ORDER TO HAVE THE ABILITY TO INCREASE THE INPUT
SLOWLY, WHEN TROUBLESHOOTING THIS TYPE POWER SUPPLY
CIRCUIT, A VARIABLE ISOLATION TRANSFORMER IS REQUIRED.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
Fixed voltage ( or Auto voltage selectable ) power supply circuit is used in this unit.
If Main Fuse (F2601) is blown, check to see that all components in the power supply
circuit are not defective before you connect the AC plug to the AC power supply.
Otherwise it may cause some components in the power supply circuit to fail.
Voltage indications for PLAY, REC and DVD modes
on the Schematic Diagrams are as shown below:
123
THE SAME VOLTAGE FOR
PLAY,REC & DVD MODES.
5.0
~
5.0
(2.5)
<0>
INDICATES THAT THE VOLTAGE
IS NOT CONSISTENT HERE.
PLAY MODE
REC MODE
DVD MODE
0
0.2
4A/125V
CAUTION: FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE 4A, 125V FUSE.
ATTENTION: UTILISER UN FUSIBLE DE RECHANGE DE
MÊME TYPE DE 4A, 125V.
NOTE :
The voltage for parts in hot circuit is measured
using hot GND as a common terminal.
0.2
1.8
0.5
1-5-31
1-5-32
TD901SCP1
Page 44
Power Supply/AV 2/2 Schematic Diagram < TV/VCR Section >
Voltage indications for PLAY, REC and DVD modes
on the Schematic Diagrams are as shown below:
123
5.0
(2.5)
<0>
~
5.0
THE SAME VOLTAGE FOR
PLAY,REC & DVD MODES.
INDICATES THAT THE VOLTAGE
IS NOT CONSISTENT HERE.
PLAY MODE
REC MODE
DVD MODE
1-5-33
1-5-34
TD901SCP2
Page 45
Power Supply/AV 2/2 Schematic Diagram Parts Location Guide
Ref No.PositionRef No.Pos i t i onRef No.Pos itionRef No.Pos i t i on
K: Cathode
E: Emitter
C: Collector
B: Base
R: Reference
21
G D S
1
21
S: Source
G: Gate
D: Drain
1-7-1TD901LE
Page 61
ELECTRICAL PARTS LIST
PRODUCT SAFETY NOTE: Products marked with a
# have special characteristics important to safety.
Before replacing any of these components, read carefully the product safety notice in this service manual.
Don't degrade the safety of the product through
improper servicing.
To order parts call the TOLL FREE Philips Sales
Center number: 1 - 800 - 851 - 8885
(In Canada) 1 - 800 - 363 - PART.
1 - 800 - 535 - 3715 (Fax).
NOTES:
1. Parts that are not assigned part numbers
(---- --- -----) are not normally available.
# have special characteristics important to safety.
Before replacing any of these components, read carefully the product safety notice in this service manual.
Don't degrade the safety of the product through
improper servicing.
NOTE: Parts that are not assigned part numbers
(---- --- -----) are not normally available.
To order parts call the TOLL FREE Philips Sales
Center number: 1 - 800 - 851 - 8885
(In Canada) 1 - 800 - 363 - PART.
1 - 800 - 535 - 3715 (Fax).
X25-1QUI CK SETUP GUIDE0EMN0247900EL 657 7E001
X25-2QUI CK SETUP GUIDE(S)0EMN0248000EL 657 7S001
Note:
1. V501 (CRT) HAS SUBSTITUTIONAL PARTS AND EACH PART ALSO HAS A MATCHING COMBINATION WITH L551.
PLEASE SEE TABLE 1 FOR DETAILS OF MATCHING COMBINATION.
2. L551 (DEFLECTION YOKE) HAS A MATCHING COMBINATION WITH V501.
PLEASE SEE TABLE 1 FOR DETAILS OF MATCHING COMBINATION.
Note 1: Purity and Convergence Adjustments must be
performed following CRT replacement. Refer to Electrical Adjustment Instructions.
Note 2: Please confirm CRT Type No. on the CRT
Warning Label which is located on the CRT. Then see
Table 1 for V501 and L551 combination chart.
Please refer to this CRT, Deflection Yoke combination
chart for parts order.
A Division of Philips Electronics North America Corporation
Service Solutions Group
Philips Consumer Electronics Company
Service Solutions Group
Technical Publications Dept.
P.O. Box 555, 401 E. Old Andrew Johnson Hwy.
Jefferson City,TN 37760
Page 81
MANUAL 5899Color TV with Built-In VCR/DVD Player MAGNAVOX20MC4304/17
Philips Consumer Electronics Company
A Division of Philips Electronics North America Corporation
Technical Service Data
Service Solutions Group
Technical Publications Dept.
P.O. Box 555, 401 E. Old Andrew Johnson Hwy.
Jefferson City,TN 37760
Color TV with Built-In
VCR/DVD Player
Service Manual
This service manual is for 20MC4304/17
Second Generation models, which are
different from previous generation
20MC4304/17 models. For Second Generation
models, rating indication is different. Refer to
the rating label illustration at right.
Sec. 1A: Main Section
( 20MC4304/17 )
Specifications
Operating Instructions
Adjustment Procedures
Schematic Diagrams and CBA’s
Exploded Views
Cabinet & Electrical Parts Lists
Sec. 2: Deck Mechanism Section
MANUAL 5899
Second Generation
rating indication
rating label
MAGNAVOX
Model: 20MC4304/17
Color TV with Built-In VCR/DVD Player
First Issue: 5/04
2004 Philips Consumer Electronics Company
Page 82
IMPORTANT SAFETY NOTICE
Proper service and repair is important to the safe, reliable operation of all
Philips Consumer Electronics Company** Equipment. The service procedures
recommended by Philips and described in this service manual are effective
methods of performing service operations. Some of these service operations
require the use of tools specially designed for the purpose. The special tools
should be used when and as recommended.
It is important to note that this manual contains various CAUTIONS and
NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service
methods may damage the equipment. It also is important to understand that
these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. Philips could not
possibly know, evaluate and advise the service trade of all conceivable ways
in which service might be done or of the possible hazardous consequences of
each way. Consequently, Philips has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is
not recommended by Philips must first satisfy himself thoroughly that neither
his safety nor the safe operation of the equipment will be jeopardized by the
service method selected.
** Hereafter throughout this manual, Philips Consumer Electronics Company
will be referred to as Philips.
WARNING
Critical components having special safety characteristics are identified
with a # by the Ref. No. in the parts list and enclosed within a broken
line* (where several critical components are grouped in one area) along
with the safety symbol # on the schematics or exploded views.
Use of substitute replacement parts which do not have the same specified
safety characteristics may create shock, fire, or other hazards.
Under no circumstances should the original design be modified or altered
without written permission from Philips. Philips assumes no liability,
express or implied, arising out of any unauthorized modification of
design. Servicer assumes all liability.
* Broken Line
Manufactured under license from Dolby Laboratories. "Dolby"
and the double-D symbol are trademarks of Dolby Laboratories.
Note: Nominal specifications represent the design specifications. All units should be able to approximate these.
Some will exceed and some may drop slightly below these specifications. Limit specifications represent the absolute worst condition that still might be considered acceptable. In no case should a unit fail to meet limit specifications.
1-1-2T1000SP
Page 86
LASER BEAM SAFETY PRECAUTIONS
This DVD player uses a pickup that emits a laser beam.
Do not look directly at the laser beam coming
from the pickup or allow it to strike against your
skin.
The laser beam is emitted from the location shown in the figure. When checking the laser diode, be sure to keep
your eyes at least 30cm away from the pickup lens when the diode is turned on. Do not look directly at the laser
beam.
Caution: Use of controls and adjustments, or doing procedures other than those specified herein, may result in
hazardous radiation exposure.
Drive Mecha Assembly
Laser Beam Radiation
Laser Pickup
Turntable
WHEN OPEN. DO NOT
CAUTION
LASER RADIATION
STARE INTO BEAM.
Location: Top of DVD mechanism.
1-2-1E5_LASER
Page 87
IMPORTANT SAFETY PRECAUTIONS
Prior to shipment from the factory, our products are strictly inspected for recognized product safety and electrical
codes of the countries in which they are to be sold. However, in order to maintain such compliance, it is equally
important to implement the following precautions when a set is being serviced.
Safety Precautions for TV Circuit
1. Before returning an instrument to the custom-
er, always make a safety check of the entire instru-
ment, including, but not limited to, the following
items:
a. Be sure that no built-in protective devices are de-
fective and have been defeated during servicing.
(1) Protective shields are provided on this chassis
to protect both the technician and the customer.
Correctly replace all missing protective shields, including any removed for servicing convenience. (2)
When reinstalling the chassis and/or other assembly in the cabinet, be sure to put back in place all
protective devices, including but not limited to,
nonmetallic control knobs, insulating fishpapers,
adjustment and compartment covers/shields, and
isolation resistor/capacitor networks. Do not oper-
ate this instrument or permit it to be operated
without all protective devices correctly installed and functioning. Servicers who defeat
safety features or fail to perform safety checks
may be liable for any resulting damage.
b. Be sure that there are no cabinet openings through
which an adult or child might be able to insert their
fingers and contact a hazardous voltage. Such
openings include, but are not limited to, (1) spacing
between the picture tube and the cabinet mask, (2)
excessively wide cabinet ventilation slots, and (3)
an improperly fitted and/or incorrectly secured
cabinet back cover.
c. Antenna Cold Check - With the instrument AC
plug removed from any AC source, connect an
electrical jumper across the two AC plug prongs.
Place the instrument AC switch in the on position.
Connect one lead of an ohmmeter to the AC plug
prongs tied together and touch the other ohmmeter lead in turn to each tuner antenna input exposed terminal screw and, if applicable, to the
coaxial connector. If the measured resistance is
less than 1.0 megohm or greater than 5.2 megohm, an abnormality exists that must be corrected
before the instrument is returned to the customer.
Repeat this test with the instrument AC switch in
the off position.
d. Leakage Current Hot Check - With the instru-
ment completely reassembled, plug the AC line
cord directly into a 120V AC outlet. (Do not use an
isolation transformer during this test.) Use a leak-
age current tester or a metering system that complies with American National Standards Institute
(ANSI) C101.1 Leakage Current for Appliances
and Underwriters Laboratories (UL) 1410, (50.7).
With the instrument AC switch first in the on position and then in the off position, measure from a
known earth ground (metal water pipe, conduit,
etc.) to all exposed metal parts of the instrument
(antennas, handle brackets, metal cabinet, screw
heads, metallic overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return path to the chassis. Any current
measured must not exceed 0.5 milli-ampere. Reverse the instrument power cord plug in the outlet
and repeat the test.
READING SHOULD
NOT BE ABOVE 0.5 mA
LEAKAGE
DEVICE
BEING
TESTED
TEST ALL EXPOSED
METAL SURFACES
ALSO TEST WITH
PLUG REVERSED
USING AC
ADAPTER PLUG
AS REQUIRED
CURRENT
TESTER
EARTH
GROUND
ANY MEASUREMENTS NOT WITHIN THE LIMITS
SPECIFIED HEREIN INDICATE A POTENTIAL
SHOCK HAZARD THAT MUST BE ELIMINATED
BEFORE RETURNING THE INSTRUMENT TO
THE CUSTOMER OR BEFORE CONNECTING
THE ANTENNA OR ACCESSORIES.
e. X-Radiation and High Voltage Limits - Because
the picture tube is the primary potential source of
X-radiation in solid-state TV receivers, it is specially constructed to prohibit X-radiation emissions.
For continued X-radiation protection, the replacement picture tube must be the same type as the
original. Also, because the picture tube shields
and mounting hardware perform an X-radiation
protection function, they must be correctly in place.
High voltage must be measured each time servic-
1-3-1TD204IMP
Page 88
ing is performed that involves B+, horizontal deflection or high voltage. Correct operation of the
X-radiation protection circuits also must be reconfirmed each time they are serviced. (X-radiation
protection circuits also may be called "horizontal
disable" or "hold down.") Read and apply the high
voltage limits and, if the chassis is so equipped,
the X-radiation protection circuit specifications given on instrument labels and in the Product Safety
& X-Radiation Warning note on the service data
chassis schematic. High voltage is maintained
within specified limits by close tolerance safety-related components/adjustments in the high-voltage
circuit. If high voltage exceeds specified limits,
check each component specified on the chassis
schematic and take corrective action.
2. Read and comply with all caution and safety-related notes on or inside the receiver cabinet, on the
receiver chassis, or on the picture tube.
3. Design Alteration Warning - Do not alter or add
to the mechanical or electrical design of this TV receiver. Design alterations and additions, including,
but not limited to circuit modifications and the addition of items such as auxiliary audio and/or video
output connections, might alter the safety characteristics of this receiver and create a hazard to the
user. Any design alterations or additions will void
the manufacturer's warranty and may make you,
the servicer, responsible for personal injury or
property damage resulting therefrom.
4. Picture Tube Implosion Protection Warning -
The picture tube in this receiver employs integral
implosion protection. For continued implosion protection, replace the picture tube only with one of
the same type number. Do not remove, install, or
otherwise handle the picture tube in any manner
without first putting on shatterproof goggles
equipped with side shields. People not so
equipped must be kept safely away while picture
tubes are handled. Keep the picture tube away
from your body. Do not handle the picture tube by
its neck. Some "in-line" picture tubes are equipped
with a permanently attached deflection yoke; because of potential hazard, do not try to remove
such "permanently attached" yokes from the picture tube.
5. Hot Chassis Warning -
a. Some TV receiver chassis are electrically connect-
ed directly to one conductor of the AC power cord
and may be safety-serviced without an isolation
transformer only if the AC power plug is inserted
so that the chassis is connected to the ground side
of the AC power source. To confirm that the AC
power plug is inserted correctly, with an AC voltmeter, measure between the chassis and a known
earth ground. If a voltage reading in excess of 1.0V
is obtained, remove and reinsert the AC power
plug in the opposite polarity and again measure
the voltage potential between the chassis and a
known earth ground.
b. Some TV receiver chassis normally have 85V
AC(RMS) between chassis and earth ground regardless of the AC plug polarity. This chassis can
be safety-serviced only with an isolation transformer inserted in the power line between the receiver
and the AC power source, for both personnel and
test equipment protection.
c. Some TV receiver chassis have a secondary
ground system in addition to the main chassis
ground. This secondary ground system is not isolated from the AC power line. The two ground systems are electrically separated by insulation
material that must not be defeated or altered.
6. Observe original lead dress. Take extra care to assure correct lead dress in the following areas: a.
near sharp edges, b. near thermally hot parts be
sure that leads and components do not touch thermally hot parts, c. the AC supply, d. high voltage,
and e. antenna wiring. Always inspect in all areas
for pinched, out of place, or frayed wiring. Check
AC power cord for damage.
7. Components, parts, and/or wiring that appear to
have overheated or are otherwise damaged
should be replaced with components, parts, or wiring that meet original specifications. Additionally,
determine the cause of overheating and/or damage and, if necessary, take corrective action to remove any potential safety hazard.
8. Product Safety Notice - Some electrical and mechanical parts have special safety-related characteristics which are often not evident from visual
inspection, nor can the protection they give necessarily be obtained by replacing them with components rated for higher voltage, wattage, etc.. Parts
that have special safety characteristics are identified by a ( # ) on schematics and in parts lists. Use
of a substitute replacement that does not have the
same safety characteristics as the recommended
replacement part might create shock, fire, and/or
other hazards. The Product's Safety is under review continuously and new instructions are issued
whenever appropriate. Prior to shipment from the
factory, our products are strictly inspected to confirm with the recognized product safety and electrical codes of the countries in which they are to be
sold. However, in order to maintain such compliance, it is equally important to implement the following precautions when a set is being serviced.
1-3-2TD204IMP
Page 89
Precautions during Servicing
A. Parts identified by the ( # ) symbol are critical for
safety.
Replace only with part number specified.
B. In addition to safety, other parts and assemblies
are specified for conformance with regulations applying to spurious radiation. These must also be
replaced only with specified replacements.
Examples: RF converters, RF cables, noise blocking capacitors, and noise blocking filters, etc.
C. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
D. Use specified insulating materials for hazardous
live parts. Note especially:
1) Insulation Tape
2) PVC tubing
3) Spacers
4) Insulators for transistors.
E. When replacing AC primary side components
(transformers, power cord, etc.), wrap ends of
wires securely about the terminals before soldering.
F. Observe that the wires do not contact heat produc-
ing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.)
G. Check that replaced wires do not contact sharp
edged or pointed parts.
H. When a power cord has been replaced, check that
5~6 kg of force in any direction will not loosen it.
I. Also check areas surrounding repaired locations.
J. Be careful that foreign objects (screws, solder
droplets, etc.) do not remain inside the set.
K. Crimp type wire connector
When replacing the power transformer in sets
where the connections between the power cord
and power transformer primary lead wires are performed using crimp type connectors, in order to
prevent shock hazards, perform carefully and precisely the following steps.
Replacement procedure
1) Remove the old connector by cutting the wires at
a point close to the connector.
Important: Do not re-use a connector (discard it).
2) Strip about 15 mm of the insulation from the ends
of the wires. If the wires are stranded, twist the
strands to avoid frayed conductors.
3) Align the lengths of the wires to be connected. Insert the wires fully into the connector.
4) Use the crimping tool to crimp the metal sleeve at
the center position. Be sure to crimp fully to the
complete closure of the tool.
L. When connecting or disconnecting the TV/DVD
connectors, first, disconnect the AC plug from AC
supply socket.
1-3-3TD204IMP
Page 90
Safety Check after Servicing
Examine the area surrounding the repaired location
for damage or deterioration. Observe that screws,
parts and wires have been returned to original positions. Afterwards, perform the following tests and confirm the specified values in order to verify compliance
with safety standards.
1. Clearance Distance
When replacing primary circuit components, confirm
specified clearance distance (d) and (d') between soldered terminals, and between terminals and surrounding metallic parts. (See Fig. 1)
Table 1: Ratings for selected area
Chassis or Secondary Conductor
Primary Circuit Terminals
dd’
AC Line VoltageRegion
110 to 130 V
Note: This table is unofficial and for reference only.
Be sure to confirm the precise values.
USA or
CANADA
Clearance
Distance (d), (d')
≥ 3.2 mm
(0.126 inches)
2. Leakage Current Test
Confirm the specified (or lower) leakage current between B (earth ground, power cord plug prongs) and
externally exposed accessible parts (RF terminals,
antenna terminals, video and audio input and output
terminals, microphone jacks, earphone jacks, etc.).
Measuring Method: (Power ON)
Insert load Z between B (earth ground, power cord
plug prongs) and exposed accessible parts. Use an
AC voltmeter to measure across both terminals of load
Z. See Fig. 2 and following table.
Table 2: Leakage current ratings for selected areas
Exposed Accessible Part
Z
One side of
B
Power Cord Plug Prongs
Fig. 1
AC Voltmeter
(High Impedance)
Fig. 2
AC Line VoltageRegionLoad ZLeakage Current (i)Earth Ground (B) to:
110 to 130 V
Note: This table is unofficial and for reference only. Be sure to confirm the precise values.
USA or
CANADA
0.15µF CAP. & 1.5kΩ
RES. connected in
parallel
1-3-4TD204IMP
i≤0.5mA rms
Exposed accessible
parts
Page 91
STANDARD NOTES FOR SERVICING
Circuit Board Indications
1. The output pin of the 3 pin Regulator ICs is indicated as shown:
Top View
Out
2. For other ICs, pin 1 and every 5th pin is indicated
as shown:
Pin 1
3. The 1st pin of every pin connector are indicated as
shown:
Pin 1
Input
In
Bottom View
5
10
Instructions for Connectors
1. When you connect or disconnect FFC cable (connector), be sure to disconnect the AC cord.
2. FFC cable (connector) should be inserted parallel
into the connector, not at an angle.
FFC Cable
Connector
CBA
* Be careful to avoid a short circuit.
[ CBA= Circuit Board Assembly ]
Pb (Lead) Free Solder
Pb free mark will be found on PCBs which use Pb
free solder. (Refer to figure.) For PCBs with Pb free
mark, be sure to use Pb free solder. For PCBs
without Pb free mark, use standard solder.
Pb free mark
How to Remove / Install Flat Pack IC
Caution:
1. The Flat Pack-IC shape may differ by models. Use
an appropriate hot-air flat pack-IC desoldering
machine, whose shape matches that of the Flat
Pack-IC.
2. Do not apply the hot air to the chip parts around the
Flat Pack-IC for over 6 seconds as damage may
occur to the chip parts. Put Masking Tape around
the Flat Pack-IC to protect other parts from damage. (Fig. S-1-2)
3. The Flat Pack-IC on the CBA is affixed with glue, so
be careful not to break or damage the foil of each
pin or solder lands under the IC when removing it.
1. Removal
With Hot - Air Flat Pack - IC Desoldering Machine:
a. Prepare the Hot - Air Flat Pack - IC Desoldering
Machine, then apply hot air to Flat Pack - IC (about
5~6 seconds). (Fig. S-1-1)
b. Remove the Flat Pack- IC with tweezers while
applying the hot air.
With Soldering Iron:
a. Using desoldering braid, remove the solder from all
pins of the Flat Pack - IC. When you use solder flux
which is applied to all pins of the Flat Pack - IC, you
can remove it easily. (Fig. S-1-3)
b. Lift each lead of the Flat Pack - IC upward one by
one, using a sharp pin or wire to which solder will
not adhere (iron wire). When heating the pins, use
a fine tip soldering iron or a hot air Desoldering
Machine. (Fig. S-1-4)
With Iron Wire:
a. Using desoldering braid, remove the solder from all
pins of the Flat Pack - IC. When you use solder flux
which is applied to all pins of the Flat Pack - IC, you
can remove it easily. (Fig. S-1-3)
1-4-1X5SNOTE
Page 92
b. Affix the wire to a workbench or solid mounting
point, as shown in Fig. S-1-5.
c. Pull up on the wire as the solder melts so as to lift
the IC leads from the CBA contact pads, while
heating the pins using a fine tip soldering iron or
hot air blower.
Note:
When using a soldering iron, care must be taken
to ensure that the Flat Pack - IC is not being held
by glue, or when it is removed from the CBA, it
may be damaged if force is used.
2. Installation
a. Using desoldering braid, remove the solder from
the foil of each pin of the Flat Pack - IC on the CBA,
so you can install a replacement Flat Pack - IC
more easily.
b. The "I" mark on the Flat Pack - IC indicates pin 1
(See Fig. S-1-6). Make sure this mark matches the
1 on the CBA when positioning for installation.
Then pre - solder the four corners of the Flat PackIC (See Fig. S-1-7).
c. Solder all pins of the Flat Pack - IC. Make sure that
none of the pins have solder bridges.
Flat Pack-IC
Fine Tip
Soldering Iron
Desoldering Braid
Soldering Iron
Fig. S-1-3
Sharp
Pin
Fig. S-1-4
CBA
Masking
Tape
Tweezers
Hot Air Blower
or
Iron Wire
Fig. S-1-1
Soldering Iron
To Solid
Mounting Point
Fig. S-1-5
Hot-air
Flat Pack-IC
Desoldering
Machine
Flat Pack-IC
Fig. S-1-2
1-4-2X5SNOTE
Page 93
Example :
Instructions for Handling
Semiconductors
Electrostatic breakdown of the semiconductors may
occur due to a potential difference caused by electrostatic charge during unpacking or repair work.
Ground for Human Body
Be sure to wear a grounding band (1MΩ) that is properly grounded to remove any static electricity that may
be charged on the body.
Pin 1 of the Flat Pack-IC
is indicated by a " " mark.
Presolder
CBA
Fig. S-1-6
Flat Pack-IC
Fig. S-1-7
Ground for Work Bench
Be sure to place a conductive sheet or copper plate
with proper grounding (1MΩ) on the work bench or
other surface, where the semiconductors are to be
placed. Because the static electricity charge on the
clothing will not escape through the body grounding
band, be careful to avoid contacting semiconductors to
clothing.
<Incorrect>
CBA
<Correct>
CBA
1MΩ
1-4-3X5SNOTE
Grounding Band
1MΩ
Conductive Sheet or
Copper Plate
Page 94
PREPARATION FOR SERVICING
How to Enter the Service Mode
Caution: 1
1. Optical sensors system are used for Tape Start and
End Sensor on this equipment. Read this page
carefully and prepare as described on this page
before starting to service; otherwise, the unit may
operate unexpectedly.
Preparing: 1
1. Cover Q202 (START SENSOR) and Q201 (END
SENSOR) with Insulation Tape or enter the service
mode to activate Sensor Inhibition automatically.
Note: Avoid playing, rewinding or fast forwarding the
tape to its beginning or end, because both Tape End
Sensors are not active.
How to Enter the Service Mode
1. Turn power on.
2. Use service remote control unit and press "DISC
MENU" key. (See page 1-9-1.)
3. When entering the service mode, one of the number (1, 2 or 4) will display at corners of the screen.
4. During the service mode, electrical adjustment
mode can be selected by remote control key. (Service remote control unit).
Details are as follows.
KeyAdjustment Mode
Picture adjustment mode: Press the
"PICTURE" button to change from BRT
(Bright), *CNT (Contrast), *COL (Color),
PICTURE
*TNT(Tint) and *V-TNT(V-Tint). Press
"CH o/p" key to display Initial Value.
*Marked items are not necessary to
adjust normally.
KeyAdjustment Mode
Purity check mode: Shows Red, Green,
7
8
9
VOL o
VOL p
Caution: 2
1. The deck mechanism assembly is mounted on the
Main CBA directly, and SW211 (REC-SAFETY
SW) is mounted on the Main CBA. When deck
mechanism assembly is removed from the Main
CBA due to servicing, this switch can not be operated automatically.
Blue or White cyclically on the screen
each time the "7" key is pressed.
H. Position Adjustment: See adjustment
instructions page 1-9-7.
V.size/V. shift adjustment: See
adjustment instructions page 1-9-7.
CD-VOL/DVD-BRT/DVD-SHARP
Adjustment mode: See adjustment
instructions page 1-9-4.
Cut-off Adjustment mode: See
adjustment instructions page 1-9-5.
White balance Adjustment mode: See
adjustment instructions page 1-9-6.
Preparing: 2
1. To eject the tape, press the "STOP/EJECT" button
on the unit (or Remote Control).
2. When you want to record during the Service mode,
press the "Rec" button while depressing SW211
(REC-SAFETY SW) on the Main CBA.
Q201
(END SENSOR)
Q202
(START SENSOR)
C-Trap and Y DL Time TV/Y DL Time
EXT/Y SW LPF/Black Stretch Off/ Black
0
1No need to use.
2
3No need to use.
4
5
6No need to use.
Stretch CONT/C. Angle adjustment
mode: See adjustment instructions
page 1-9-2 and 1-9-3.
H fo adjustment mode: See adjustment
instructions page 1-9-5.
Auto record mode: Perform recording
(15 Sec.)-->Stop-->Rewind (Zero
return) automatically.
Head switching position adjustment
mode: See adjustment instructions
page 1-9-8.
SW211
(REC-SAFETY SW)
1-5-1T1006PFS
MAIN CBA
Page 95
OPERATING CONTROLS AND FUNCTIONS
1-6-1T1006IB
Page 96
1-6-2T1006IB
Page 97
REMOTE CONTROL OPERATION
1-7-1T1006IBR
Page 98
1-7-2T1006IBR
Page 99
CABINET DISASSEMBLY INSTRUCTIONS
1. Disassembly Flowchart
This flowchart indicates the disassembly steps for the
cabinet parts, and the CBA in order to gain access to
item(s) to be serviced. When reassembling, follow the
steps in reverse order. Bend, route and dress the
cables as they were.
Caution!
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
[1] Rear Cabinet
[8] Function CBA
[5] DVD Main
CBA Unit
[6] DVD
Mechanism
[4] DVD Unit
[7] Sub CBA
[9] Deck Assembly
[3] CRT[2] Tray Chassis Unit
[10] Main CBA
2. Disassembly Method
REMOVAL
ID/
LOC.
No.
[1]
[2]
PAR T
Rear
Cabinet
Tr ay
Chassis
Unit
REMOVE/
*UNHOOK/UNLOCK/
Fig.
No.
RELEASE/UNPLUG/
DESOLDER
14(S-1), (S-2), 2(S-3)-
Anode Cap, *CN501A,
2, 3,
CRT CBA, *CN571,
5
*CN601, *CN802,
*CN1801
Note
1
REMOVAL
ID/
LOC.
No.
[8]
[9]
[10] Main CBA25(S-17)-
↓
(1)
(1): Order of steps in Procedure. When reassembling,
(2): Parts to be removed or installed.
(3): Fig. No. showing Procedure of Part Location.
(4): Identification of part to be removed, unhooked,
(5): Refer to the following "Reference Notes in the
PART
Function
CBA
Deck
Assembly
↓
(2)
follow the steps in reverse order. These numbers
are also used as the Identification (location) No. of
parts in Figures.
unlocked, released, unplugged, unclamped, or
desoldered.
S=Screw, P=Spring, L=Locking Tab, CN=Connector, *=Unhook, Unlock, Release, Unplug, or Desolder
2(S-2) = two Screws (S-2)
Table."
REMOVE/
*UNHOOK/UNLOCK/
Fig.
No.
RELEASE/UNPLUG/
DESOLDER
2, 5 2(S-12), *CN803-
3(S-13), 7(S-14),
(S-15), (S-16),
2, 5
Top Shield, *CL201,
*CL401, *CL402,
*CL403
↓
(3)
↓
(4)
Note
(5)
4
↓
[3]CRT 3, 5 4(S-4), *CL501A-
[4]DVD Unit2, 5
DVD Main
[5]
CBA Unit
DVD
[6]
Mechanism
[7]Sub CBA2, 5
4(S-5), *CN1601,
*CN1602
(S-6), (S-7), 2(S-8),
2, 4,
2(S-9), *CN201,
5
*CN301,
Loader Shield Top
2, 4, 5 (S-10),
Loader Shield Bottom
6(S-11), *CN301,
*CN602
2-1
2-2
2-3
2-4
-
2
3
2
-
1-8-1T1006DC
Page 100
Reference Notes in the Table
Caution!
When removing the CRT, be sure to discharge the
Anode Lead of the CRT with the CRT Ground Wire
before removing the Anode Cap.
Reference Notes in the Table
CAUTION 1: Discharge the Anode Lead of the CRT
with the CRT Ground Wire before removing the Anode
Cap.
1. Disconnect the following: Anode Cap, CN501A,
CRT CBA, CN571, CN601, CN802, and CN1801.
Then remove Tray Chassis Unit.
CAUTION 2: Electrostatic breakdown of the laser
diode in the optical system block may occur as a
potential difference caused by electrostatic charge
accumulated on cloth, human body etc., during
unpacking or repair work.
To avoid damage of pickup follow next procedures.
2-1. Remove screws (S-6), (S-7) and 2(S-8), and
remove Loader Shield Top.
2-2. Disconnect Connector (CN301) on the DVD Main
CBA Unit.
2-3. Short the three short lands of FPC cable with sol-
der before removing the FFC cable (CN201) from
it. If you disconnect the FFC cable (CN201), the
laser diode of pickup will be destroyed. (Fig. 4)
2-4. Remove two screws (S-9) and remove DVD Main
CBA Unit.
CAUTION 3: When reassembling, confirm the FFC
cable (CN201) is connected completely. Then remove
the solder from the three short lands of FPC cable.
(Fig. 4)
4. Remove three screws (S-13) and remove Top
Shield. Remove screws 7(S-14), (S-15) and (S-16).
Then, desolder connectors (CL201, CL401, CL402,
CL403) and lift up the Deck Assembly.
(S-1)
(S-1)
(S-1)
[1] Rear Cabinet
(S-2)
(S-3)
(S-3)
(S-1)
Fig. 1
1-8-2T1006DC
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