Schematic Diagrams and CBA's
Exploded Views
Mechanical and Electrical Parts Lists
Survey of versions:
/01 PAL-BG, EURO
/07 PAL I, UK/IRELAND
/39 PAL/SECAM-BG+PAL/SECAM-L/L',FRANCE
/58 PAL-BG/DK+SECAM-BG/DK,EAST-EURO
Sec. 2:
Standard Maintenance
Mechanism Alignment Procedures
Disassembly / Assembly of Mechanism
Deck Exploded Views
For technical data reference is made to the Service Manual of
14PV374/01/07/39/58 & 14PV375/01/07/39/58 3103 785 22220.
The present Manual states only the differences.
Safety regulations require that the set be restored to its original
condition and that parts which are identical with those specified
be used.
Published by BK 2003 Video Service Department Printed in Japan c
Copyright reserved Subject to modification GB 3103 785 22230
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.)
END-SENS.
SENSOR CBA
(END-SENSOR)
M
C-CONT
D-PFG
BLOCK DIAGRAMS
TIMER+5V
CN201
1CM+12V
2P-ON+5V(3)
3C-FG
4C-F/R
5
6FG-GND
7LD-CONT
8D-CONT
9
10M-GND
11AL+12V(1)
12VG
D201
S-LED
T-REEL
TEST POINT INFORMATION
AL+5V
RS201
WF3
CTL
SW212
LD-SW
Q204
RESET
CM+12V
P-ON+5V(3)
AL+12V(1)
: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.
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.)
C-VIDEO
IC401
(VIDEO/AUDIO SIGNAL PROCESS)
TEST POINT INFORMATION
: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.
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
" " = SMD
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
TEST POINT INFORMATION
: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.
PB-AUDIO SIGNALREC-AUDIO SIGNALMode : SP/REC
TU001
AUDIO OUT
JK702
A-IN
A-IN
A-OUT
JK703
2
1
21
Q701
IC701 (SW)
1
2
5
3
13
12
SW CTL
10119
SCART-MUTE
15
4
14
SCART-H
EXT-L
FROM SERVO
/SYSTEM
CONTROL
BLOCK
WF7
52
53
54
(VIDEO/AUDIO/CHROMA/DEFLECTION/IF)
IC301
TUNER1
LINE
AUDIO
MUTE
+5V
ATT
50
IC401
(AUDIO SIGNAL PROCESS)
TUNER
13
LINE
17
PB-ON
5
6
EQ
AMP
SP/LP-ON
MAIN CBA
IC151 (AMP)
7
WF9
7
OUTPUT
AMP
MUTE
5
98
1
SP-MUTE
(FROM PIN 44 OF IC201)
INV
ATT
CN804
SP
SP-GND1
R
P
ALC
DET
ALC
2
CL801
LINE
AMP
JK151
HEADPHONE JACK
SP151
SPEAKER
12
MUTE
11
TP007
A-OUT
WF8
(DECK ASSEMBLY)
AUDIO
HEAD
AUDIO
ERASE
HEAD
ACE HEAD ASSEMBLY
FULL
ERASE
HEAD
FE HEAD
REC-ON
71
A-MUTE-H
SDA
SCL
FROM/TO
SERVO/SYSTEM
CONTROL BLOCK
CL402
3 A-PB/REC
4 A-COM
6 AE-H
5 FE-H
CL403
1 FE-H
2 FE-H-GND
Q854
Q855
BIAS
OSC
Q856
Q853(PB=ON)
Q851
Q852(PB=ON)
1
2
SWITCHING
D-REC-OFF
+5V
AUTO
BIAS
3
100
REC
AMP
SERIAL
AUDIO HD-SW
DECODER
CONTROL
16
68 69
1-7-191-7-20T6410BLA
Chroma Block Diagram
NOTE FOR WIRE CONNECTORS:
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
" " = SMD
M, N, O, P
IC901 (TELETEXT DECODER)
ADC/
DATA SLICER
DISPLAY
TIMING
I2C I/F
TELETEXT
DECODER
OSC/CLOCK
GENERATOR
TEXT CBA
FROM/TO
SERVO/SYSTEM
CONTROL BLOCK
I2C-OPEN
23
37
36
50
49
35
32
33
34
41
42
(NO CONNECTION)
CN303 is used for
adjustment at factory
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
X901
12MHz
OSC
SCL
SDA
CN901CN751
55Y-SW-OUT
11V-SYNC
22H-SYNC
44SDA
33SCL
CN752CN902
22OSD-BLK
44OSD-B
66OSD-G
33OSD-R
CN303
INT.MONITOR
I2C-OPEN2
SDA4
SCL5
1
TEST POINT INFORMATION
: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.
1. PREFIX SYMBOL "CN" MEANS CONNECTOR.
(CAN DISCONNECT AND RECONNECT.)
" " = SMD
2. PREFIX SYMBOL "CL" MEANS WIRE-SOLDER
HOLES OF THE PCB.
(WIRE IS SOLDERED DIRECTLY.)
TEST POINT INFORMATION
: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.
REC VIDEO SIGNALPB VIDEO SIGNAL
Mode : SP/REC
FROM
POWER SUPPLY BLOCK
3
FROM/TO
CHROMA BLOCK
CL302A
3
6
5
4
H.V./POWER SUPPLY CBA
+B
DEF+B
JUNCTION-B
CBA
CN302CL302B
33FBP
22H-DRIVE
66ACL
55V-RAMP-FB
44V-DRIVE
CN552
Q533
H.DRIVE
WF12
Q551
H.OUTPUT
T552
1
5
3
4
T551 F.B.T.
10
IC551 (V-DEFLECTION CONTROL)
THERMAL
7
AMP
1
6
FOCUS VR
HV
F
S
11
8
7
9
6
SCREEN VR
PROTECTION
PUMP
UP
VCC
2
3
ANODE
FOCUS
SCREEN
HEATER11
P-ON+160V33
5
CL501BCL501A
WF13
CN551
L551
DEFLECTION-YOKE
5
4
3
1
VDRIVE
HDRIVE
ANODE
FROM CHROMA
BLOCK CL301A
CN301CL301B
2
4
3
JUNCTION-C
CBA
22RED
44GREEN
33BLUE
CN502
Q501
RED AMP
CRT CBA
Q502
GREEN AMP
JK501
FOCUS
WF15WF14
BLUE AMP
Q503
WF16
CN501
1-7-241-7-23
SCREEN
GND
R
G
B
HEATER
GND
T6410BLCRT
V501
CRT
Power Supply Block Diagram
W601
DG601
DEGAUSSING
COIL
CAUTION !
Fixed voltage power supply circuit is used in this unit.
If Main Fuse (F601) 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.
SW601
POWER
CN601
F601
T4A/250V
PS602
L601,L602
LINE
FILTER
D601 - D604
BRIDGE
RECTIFIER
HOTCOLD
T601
6
4
14
13
11
12
CAUTION
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE T4A/250V FUSE.
TP503
+B
TP504
GND
+B
TO
CRT/H.V.
BLOCK
DEF+B
NOTE :
The voltage for parts in hot circuit is measured using
hot GND as a common terminal.
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.
C222CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C223CHIP CERAMIC CAP.(MELF) Y K 2200PF/35V 1111111111111
C224CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C225CHIP CERAMIC CAP. CH J 560PF/50V1111111111111
C226CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C227CHIP CERAMIC CAP. CH D 10PF/50V1111111111111
C228CHIP CERAMIC CAP. CH D 10PF/50V1111111111111
C229CHIP CERAMIC CAP.(MELF) Y K 4700PF/16V 1111111111111
C230CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C231CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C233CHIP CERAMIC CAP.(MELF) Y K 1000PF/35V 1111111111111
C234CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C235ELECTROLYTIC CAP. 47UF/6.3V M H71111111111111
C236CHIP CERAMIC CAP. B K 0.047UF/50V1111111111111
C237ELECTROLYTIC CAP. 47UF/6.3V M H71111111111111
C238CHIP CERAMIC CAP. B K 0.047UF/50V1111111111111
C239CHIP CERAMIC CAP. CH J 560PF/50V1111111111111
C240CHIP CERAMIC CAP.(MELF) Y K 4700PF/16V 1111111111111
C241ELECTROLYTIC CAP. 22UF/50V M1111111111111
C242CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C243ELECTROLYTIC CAP. 47UF/6.3V M H71111111111111
C244CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C245ELECTROLYTIC CAP. 47UF/6.3V M H71111111111111
C248ELECTROLYTIC CAP. 47UF/6.3V M H71111111111111
C253CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C256ELECTROLYTIC CAP. 10UF/25V M H71111111111111
C301CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C302ELECTROLYTIC CAP. 1000UF/6.3V M1111111111111
C303CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C304CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C305ELECTROLYTIC CAP. 1UF/50V M1111111111111
C307CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C308CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C309FILM CAP.(P) 0.1UF/50V J1111111111111
C310CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C311ELECTROLYTIC CAP. 1000UF/6.3V M1111111111111
C312CHIP CERAMIC CAP.(MELF) B K 180PF/50V1111111111111
C313CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C314CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C315CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C316ELECTROLYTIC CAP. 1UF/50V M1111111111111
C317CHIP CERAMIC CAP. CH J 150PF/50V1111111111111
C318ELECTROLYTIC CAP. 1UF/50V M1111111111111
C319ELECTROLYTIC CAP. 1UF/50V M1111111111111
C320CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C321ELECTROLYTIC CAP. 1UF/50V M1111111111111
C322ELECTROLYTIC CAP. 470UF/10V M1111111111111
C323ELECTROLYTIC CAP. 47UF/25V M1111111111111
C324CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C325MYLAR CAP. 0.22UF/50V J1111111111111
C326ELECTROLYTIC CAP. 1UF/50V M1111111111111
C327CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C328MYLAR CAP. 0.22UF/50V J1111111111111
C330CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C331ELECTROLYTIC CAP. 47UF/10V M1111111111111
C332CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C333CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C334CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C336ELECTROLYTIC CAP. 47UF/10V M1111111111111
12 NCDescription
14PV120/07
14PV125/01
14PV125/07
14PV125/39
14PV125/58
14PV225/01
14PV225/07
14PV225/39
14PV225/58
14PV422/01
14PV422/07
14PV422/58
14PV422/39
1-14-19
ELECTRICAL PARTS LIST
h
Pos.
C338CHIP CERAMIC CAP.(MELF) Y K 1000PF/35V 1111111111111
C339CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C340CHIP CERAMIC CAP.(MELF) SL J 100PF/50V 1111111111111
C341CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C344CHIP CERAMIC CAP.(MELF) Y K 1000PF/35V 1111111111111
C350ELECTROLYTIC CAP. 220UF/10V M1111111111111
C401CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C402ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C403ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C404ELECTROLYTIC CAP. 100UF/6.3V H71111111111111
C405CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C406CHIP CERAMIC CAP. B K 0.047UF/50V1111111111111
C407CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C408CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C409CHIP CERAMIC CAP. B K 0.047UF/50V1111111111111
C410CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C411CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C412ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C413CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C414CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C415CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C416ELECTROLYTIC CAP. 47UF/6.3V M H71111111111111
C417ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C418ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C419CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C420CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C421ELECTROLYTIC CAP. 10UF/25V M H71111111111111
C424CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C425CHIP CERAMIC CAP. CH J 68PF/50V1111111111111
C426CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C427CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C430ELECTROLYTIC CAP. 47UF/25V M1111111111111
C431CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C432ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C433ELECTROLYTIC CAP. 10UF/25V M H71111111111111
C434ELECTROLYTIC CAP. 22UF/16V M H71111111111111
C435ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C436CHIP CERAMIC CAP. CH J 120PF/50V1111111111111
C438CHIP CERAMIC CAP. CH J 220PF/50V1111111111111
C440ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C441CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C442CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C443ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C444CHIP CERAMIC CAP. B K 1000PF/50V1111111111111
C445ELECTROLYTIC CAP. 10UF/25V M H71111111111111
C452CHIP CERAMIC CAP. CH J 68PF/50V1111111111111
C471CHIP CERAMIC CAP. B K 0.01UF/50V111
C472CHIP CERAMIC CAP. B K 0.01UF/50V111
C473CHIP CERAMIC CAP. F Z 0.1UF/50V111
C474CHIP CERAMIC CAP. F Z 0.1UF/50V111
C475CHIP CERAMIC CAP. F Z 0.1UF/50V111
C476CHIP CERAMIC CAP. B K 0.01UF/50V111
C478CHIP CERAMIC CAP. F Z 0.1UF/50V111
C479CHIP CERAMIC CAP. B K 0.01UF/50V111
C480CHIP CERAMIC CAP. B K 0.01UF/50V111
C481ELECTROLYTIC CAP. 0.47UF/50V M H7111
C483CHIP CERAMIC CAP. F Z 0.1UF/50V111
C484CHIP CERAMIC CAP. CH J 820PF/50V111
C485CHIP CERAMIC CAP. CH J 820PF/50V111
12 NCDescription
14PV120/07
14PV125/01
14PV125/07
14PV125/39
14PV125/58
14PV225/01
14PV225/07
14PV225/39
14PV225/58
14PV422/01
14PV422/07
14PV422/58
14PV422/39
1-14-20
ELECTRICAL PARTS LIST
h
Pos.
C486ELECTROLYTIC CAP. 2.2UF/50V M H7111
C681ELECTROLYTIC CAP. 220UF/16V M1111111111111
C682ELECTROLYTIC CAP. 220UF/16V M1111111111111
C683ELECTROLYTIC CAP. 10UF/50V M1111111111111
C684CHIP CERAMIC CAP.(MELF) SL J 100PF/50V 1111111111111
C687ELECTROLYTIC CAP. 47UF/25V M1111111111111
C688ELECTROLYTIC CAP. 47UF/25V M1111111111111
C689ELECTROLYTIC CAP. 470UF/10V M1111111111111
C691ELECTROLYTIC CAP. 2.2UF/50V M1111111111111
C692CHIP CERAMIC CAP.(MELF) F Z 0.01UF/16V1111111111111
C694ELECTROLYTIC CAP. 100UF/10V M1111111111111
C701CHIP CERAMIC CAP.(MELF) Y K 4700PF/16V 1111111111111
C703ELECTROLYTIC CAP. 4.7UF/50V M1111111111111
C705CHIP CERAMIC CAP.(MELF) Y K 4700PF/16V 1111111111111
C706CHIP CERAMIC CAP.(MELF) Y K 6800PF/16V 1111111111111
C707ELECTROLYTIC CAP. 0.22UF/50V M1111111111111
C708ELECTROLYTIC CAP. 0.47UF/50V M1111111111111
C709ELECTROLYTIC CAP. 0.47UF/50V M1111111111111
C710ELECTROLYTIC CAP. 0.47UF/50V M1111111111111
C711ELECTROLYTIC CAP. 470UF/10V M1111111111111
C713ELECTROLYTIC CAP. 100UF/10V M1111111111111
C714CHIP CERAMIC CAP. CH J 270PF/50V1111111111111
C715ELECTROLYTIC CAP. 4.7UF/50V M1111111111111
C716CHIP CERAMIC CAP. B K 0.047UF/50V1111111111111
C719ELECTROLYTIC CAP. 1UF/50V M1111111111111
C723CHIP CERAMIC CAP.(MELF) Y K 1000PF/35V 1111111111111
C724ELECTROLYTIC CAP. 47UF/10V M1111111111111
C851ELECTROLYTIC CAP. 47UF/6.3V M H71111111111111
C855ELECTROLYTIC CAP. 220UF/6.3V M H71111111111111
C856CERAMIC CAP. B K 470PF/100V1111111111111
C857FILM CAP.(P) 0.018UF/100V J1111111111111
C858CHIP CERAMIC CAP. B K 2200PF/50V1111111111111
C859CHIP CERAMIC CAP.(MELF) SL J 33PF/50V1111111111111
C860PCB JUMPER D0.6-P5.01111111111111
C861CERAMIC CAP.(AX) X M 1800PF/16V1111111111111
C862ELECTROLYTIC CAP. 10UF/25V M H71111111111111
C863CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
C864CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C865CHIP CERAMIC CAP. B K 0.022UF/50V1111111111111
C866ELECTROLYTIC CAP. 33UF/10V H71111111111111
C867ELECTROLYTIC CAP. 4.7UF/50V M H71111111111111
C868CHIP CERAMIC CAP.(MELF) Y K 4700PF/16V 1111111111111
C869CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C871CHIP CERAMIC CAP.(MELF) B K 150PF/50V1111111111111
C872ELECTROLYTIC CAP. 1UF/50V M H71111111111111
C874CHIP CERAMIC CAP. F Z 0.1UF/50V1111111111111
C875CHIP CERAMIC CAP. CH J 220PF/50V1111111111111
C876CHIP CERAMIC CAP. B K 0.01UF/50V1111111111111
10053143 027 10191 TUN IF V+U PLL IEC BGDKI 031111111111
10053143 027 10201 TUN IF V+U PLL IEC BGDKIL 03111
50003143 021 00011 COI DEGAUS FUNAI1111111111111
80003143 021 00031 EARTH CABLE1111111111111
80162422 070 98211 MAINSCORD EUR 2A5 1M7 JH BK B111111111
80162422 070 98218 MAINSCORD UK 5A 1M8 BK B1111
C501CERAMIC CAP.(AX) B K 220PF/50V1111111111111
C502CERAMIC CAP.(AX) B K 220PF/50V1111111111111
C503CERAMIC CAP.(AX) B K 220PF/50V1111111111111
C504CERAMIC CAP. B K 1000PF/2KV1111111111111
C505ELECTROLYTIC CAP. 1UF/50V M H71111111111111
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
*)Note:
Pos.1 consists of A1-1A1-8
A1-3A1-9
A1-4A1-10
A1-5L7
A1-7
MECHANICAL PARTS LIST
Pos.
Pos.
Expl. View
0001 *)3143 027 60281 FRONT ASSY 14PV120/071
0001 *)3143 027 60291 FRONT ASSY 14PV125/01/07/58111
0001 *)3143 027 60301 FRONT ASSY 14PV125/391
0001 *)3143 027 60041 FRONT ASSY 14PV203/01/07/58111
0001 *)3143 027 60311 FRONT ASSY 14PV225/391
0001 *)3143 027 60201 FRONT ASSY 14PV422/01/07/58111
0001 *)3143 027 60211 FRONT ASSY 14PV422/391
0001 A1-1FRONT CAB (A) BL 800071
0001 A1-1FRONT CAB (A) GR PH00111111111
0001 A1-1FRONT CAB PH01 LIGHT GREY1111
0011 A1-3WORDMARK 14" 17" PLASTIC1
0011 A1-3WORDMARK PHILIPS1111
0011 A1-3WORDMARK PHILIPS11111111
0005 A1-4
0005 A1-4CASS. DOOR (A) BL 800071
0005 A1-4CASS. DOOR (A) GR PH00111111111
0006 A1-5LEG SPRING1111111111111
0007 A1-8LED LENS A (C)111111111
0007 A1-8LED LENS B (C)1111
0008 A1-9LED LENS A (R)111111111
0008 A1-9LED LENS B (R)1111
1.Clean all parts for the tape tr ansport (Upp er Drum with Video He ad / Pinch Roll er / Audio Contr ol Head / Full
Erase Head) using 90% lsopropyl Alcohol.
2.After cleaning the parts, do all DECK ADJUSTMENTS.
3.For the reference numbers listed above, refer to Deck Exploded Views.
Cam Holder (F)
II
2-1-3T6410MEN
Cleaning
V
d
Cleaning of Video Head
Clean the head with a head cleanin g stick or chamois
cloth.
Procedure
1.Remove the top cabinet.
2.Put on a glove (thin type) to avoid touching the
upper and lower drum with your bare hand.
3.Put a few d rops of 90% Isopropyl alcohol o n the
head cleaning stick or on the chamois cloth and,
by slightly pressi ng it a gai nst th e he ad tip, turn the
upper drum to the right and to the left.
Notes:
1.The video head surface is made of very hard
material, but since it i s very thin, avoid clea ning it
vertically.
2.Wait for the cleaned part to dry thorough ly before
operating the unit.
3.Do not reuse a stained head cleaning stick or a
stained chamois cloth.
Cleaning of Audio Control Head
Clean the head with a cotton swab.
Procedure
1.Remove the top cabinet.
2.Dip the cotton sw ab in 90% isopropyl alcohol and
clean the audio control head. Be careful not to
damage the upper drum and other tape running
parts.
Notes:
1.Avoid cleaning the audio control head vertically.
2.Wait for the cleaned part to dry thoroughly before
operating the unit or damage may occur.
Explanation of alignment for the tape to correctly run
starts on the next page. Refer to the information below
on this page if a tape gets stuck, for example, in the
mechanism due to some electrical trouble of the unit.
Service Information
A. Method for Manual Tape Loading/Unloading
To load a cassette tape manually:
1. Disconnect the AC plug.
2. Remove the Top Case and Front Assembly.
3. Insert a cassette tape. Though the tape will not be
automatically loaded, make sure that the cassette
tape is all the way in at the inlet of the Cassette
Holder. To confirm this, lightly push the cassette
tape further in and see if the tape comes back out,
by a spring motion, just as much as you have
pushed in.
4. Turn the LDG Belt in the appropriate direction
shown in Fig. M1 for a minute or two to complete
this task.
To unload a cassette tape manually:
1. Disconnect the AC plug.
2. Remove the Top Case and Front Assembly.
3. Make sure that the Moving guide preparations are
in the Eject Position.
4. Turn the LDG Belt in the appropriate direction
shown in Fig. M1 until the Moving guide preparations come to the Eject Position. Stop turning
when the preparations begin clicking or can not be
moved further. However, the tape will be left
wound around the cylinder.
5. Turn the LDG Belt in the appropriate direction continuously, and the cassette tape will be ejected.
Allow a minute or two to complete this task.
B. Method to place the Cassette Holder in the tape-
loaded position without a cassette tape
1. Disconnect the AC Plug.
2. Remove the Top Case and Front Assembly.
3. Turn the LDG Belt in the appropriate direction
shown in Fig. M1. Release the locking tabs shown
in Fig. M1 and continue turning the LDG Belt until
the Cassette Holder comes to the tape-loaded
position. Allow a minute or two to complete this
task.
Top View
Moving guide T preparation
(Eject Position)
Moving guide S preparation
(Eject Position)
Push the tape
to load it.
Push the locking tab gently to unlock
when loading without a cassette.
UNLOAD
/EJECT
LOAD
Side View
LDG Belt
Fig. M1
Bottom View
LDG Belt (B)
UNLOAD
/EJECT
Cam Gear
Fig. M2
2-3-5T6410MA
1.Tape Interchangeability Alignment
Note:
To do these alignment procedures, make sure that the
Tracking Control Circuit is set to the center position
every time a tape is loaded or unloaded. (Refer to
page 2-3-8, procedure 1-C, step 2.)
Note: Before starting this Mechanical Alignment, do all
Electrical Adjustment procedures.
Flowchart of Alignment for tape traveling
Loading (Use a blank tape.)
Adjust the height of the Guide Rollers
(Supply side and take-up side).
(Use a blank tape.) (pg. 2-3-3)
1-A
Check to see that the tape is not creasing
and that there is no slack on the supply
and take-up side Guide Rollers.
(Use a blank tape.)
Adjust the X Value for maximum envelope.
(pg. 2-3-3) (Use Alignment Tape.)
Adjust the envelope. (pg. 2-3-4)
Check the envelope.
OK
Adjust the Audio Section.
(Azimuth Alignment) (pg. 2-3-4)
Check the audio output.
OK
1-A
1-B
1-C
1-C
1-D
1-D
Not good
Not good
Not good
Do the final tape-traveling test to see that
the tape runs normally in play mode without creasing or slacking.
OK
Completion
1-A
Check the following:
1. X Value (pg. 2-3-3)
2. Envelope (pg. 2-3-4)
OK
1-B, 1-C
Not good
2-3-6T6410MA
Adjust the X value and envelope.
1-B, 1-C
1-A. Preliminary/Final Checking and
Alignment of Tape Path
Purpose:
To make sure that the tape path is well stabilized.
Symptom of Misalignment:
If the tape path is unstable, the tape will be damaged.
Note: Do not use an Alignment Tape for this procedure. If the unit is not correctly aligned, the tape may
be damaged.
1. Playback a blank cassette tape and check to see
that the tape runs without creasing at Guide Rollers
[2] and [3], and at points A and B on the lead surface. (Refer to Fig. M3 and M4.)
2. If creasing is apparent, align the height of the guide
rollers by turning the top of Guide Rollers [2] and
[3] with a Guide Roller Adj. Screwdriver. (Refer to
Fig. M3 and M5.)
Guide Roller [2]
A
Take-up Guide Post [4]
Lead Surface of Cylinder
Correct
Guide Roller
Tape
Guide Roller [3]
B
Tape
Incorrect
ACE Head
Fig. M3
Fig. M4
3. Check to see that the tape runs without creasing at
Take-up Guide Post [4] or without snaking between
Guide Roller [3] and AC Head. (Fig. M3 and M5)
4. If creasing or snaking is apparent, adjust the Tilt
Adj. Screw of the AC Head. (Fig. M6)
Azimuth Adj. Screw
AC Head
X-Value Adj.
Screwdriver
Tilt Adj. Screw
Fig. M6
1-B. X Value Alignment
Purpose:
To align the Horizontal Position of the Audio/Control/
Erase Head.
Symptom of Misalignment:
If the Horizontal Position of the Audio/Control/Erase
Head is not properly aligned, maximum envelope cannot be obtained at the Neutral position of the Tracking
Control Circuit.
1. Connect the oscilloscope to TP008 (C-PB) and
TP001 (CTL) on the Main CBA. Use TP002 (RFSW) as a trigger.
2. Playback the Gray Scale of the Alignment Tape
(FL6N8) and confirm that the PB FM signal is
present.
3. Set the Tracking Control Circuit to the center position by pressing CH UP button then “ PLAY ” button
on the unit. (Refer to note on bottom of page
2-3-8.)
4. Use the X-Value Adj. Screwdriver so that the PB
FM signal at TP008 (C-PB) is maximum. (Fig. M6)
5. Press CH UP button on the unit until the CTL waveform has shifted by approx. +2msec. Make sure
that the envelope is simply attenuated (shrinks in
height) during this process so that you will know
the envelope has been at its peak.
Tape
Take-up Guide
Post
Fig. M5
2-3-7T6410MA
6. Press CH DOWN button on the unit until the CTL
waveform has shifted from its original position (not
the position achieved in step 5, but the position of
CTL waveform in step 4) by approximately -2msec.
Make sure that the envelope is simply attenuated
(shrinks in height) once CTL waveform passes its
original position and is further brought in the minus
direction.
7. Set the Tracking Control Circuit to the center position by pressing CH UP button and then “ PLAY ”
button.
1-C. Checking/Adjustment of Envelope
Waveform
Purpose:
To achieve a satisfactory picture and precise tracking.
Symptom of Misalignment:
If the envelope output is poor, noise will appear in the
picture. The tracking will then lose precision and the
playback picture will be distorted by any slight variation of the Tracking Control Circuit.
1. Connect the oscilloscope to TP008 (C-PB) on the
Main CBA. Use TP002 (RF-SW) as a trigger.
2. Playback the Gray Scale on the Alignment Tape
(FL6N8). Set the Tracking Control Circuit to the
center position by pressing CH UP button and then
“ PLAY ” button on the unit. Adjust the height of
Guide Rollers [2] and [3] (Fig. M3, Page 2-3-7)
watching the oscilloscope display so that the envelope becomes as flat as possible. To do this adjustment, turn the top of the Guide Roller with the
Guide Roller Adj. Screwdriver.
3. If the envelope is as shown in Fig. M7, adjust the
height of Guide Roller [2] (Refer to Fig. M3) so that
the waveform looks like the one shown in Fig. M9.
4. If the envelope is as shown in Fig. M8, adjust the
height of Guide Roller [3] (Refer to Fig. M3) so that
the waveform looks like the one shown in Fig. M9.
5. When Guide Rollers [2] and [3] (Refer to Fig.M3)
are aligned properly, there is no envelope drop
either at the beginning or end of track as shown in
Fig. M9.
Dropping envelope level at the beginning of track.
Dropping envelope level at the end of track.
Fig. M8
Envelope is adjusted properly. (No envelope drop)
Fig. M9
Note: Upon completion of the adjustment of Guide
Rollers [2] and [3] (Refer to Fig. M3), check the X
Value by pushing the CH UP or DOWN buttons alternately, to check the symmetry of the envelope. Check
the number of pushes to ensure center position. The
number of pushes CH UP button to achieve 1/2 level
of envelope should match the number of pushes CH
DOWN button from center. If required, redo the “X
Value Alignment.”
1-D. Azimuth Alignment of Audio/Control/
Erase Head
Purpose:
To correct the Azimuth alignment so that the Audio/
Control/Erase Head meets tape tracks properly.
Symptom of Misalignment:
If the position of the Audio/Control/Erase Head is not
properly aligned, the Audio S/N Ratio or Frequency
Response will be poor.
1. Connect the oscilloscope to the audio output jack
on the rear side of the deck.
2. Playback the alignment tape (FL6N8) and confirm
that the audio signal output level is 6kHz.
3. Adjust Azimuth Adj. Screw so that the output level
on the AC Voltmeter or the waveform on the oscilloscope is at maximum. (Fig. M6)
Before following the procedures described below, be sure to remove the deck assembly from the cabinet. (Refer to
CABINET DISASSEMBLY INSTRUCTIONS.)
All the following proc edures, including those for adjustment and replacement of parts, should be done in Ejec t
mode; see the positions of [41] and [42] in Fig.DM1 on page 2-4-11. When reassembling, follow the steps in
reverse order.
[9][9]AC Head AssemblyTDM1,DM7(S-4)
[10][2]Tape Guide Arm Assembly TDM1,DM8*(P-2)
[11][10]C Door Opener TDM1,DM8*(L-4)
[12][11]Pinch Arm (B)TDM1,DM8*(P-3)
[13][12]Pinch Arm AssemblyTDM1,DM8
[14][14]FE Head AssemblyTDM1,DM9(S-5)
[15][15]PrismTDM1,DM9(S-6)
[16][2],[15]Sensor GearTDM1,DM15
[17][2]Slider ShaftTDM10*(L-5)
[18][17]C Drive Lever (SP)TDM10
[19][17]C Drive Lever (TU)TDM10(S-7),*(P-4)
(1): Follow steps in sequence. When reassembling, follow the steps in reverse order.
These numbers are also used as identification (location) No. of parts in the figures.
(2): Indicates the part to start disassembling with in order to disassemble the part in column (1).
(3):Name of the part
(4): Location of the part: T=Top B=Bottom R=Right L=Left
(5): Figure Number
(6): Identification of parts to be removed, unhooked, unlocked, released, unplugged, unclamped, or desoldered.
e.g., 2(L-2) = two Locking Tabs (L-2).
(7): Adjustment Information for Installation
(+):Refer to Deck Exploded Views for lubrication.
.
2-4-10T6410DA
T op View
[14]
[36]
[35]
[42][41][43][9]
[7][46][8]
[13]
[11]
[15]
[10]
[12]
[34]
Bottom View
[26]
[27]
[23]
[28]
[20]
[29]
[30][40][16][39][38]
Fig. DM1
[33]
[32]
[24]
[25]
[31][21][22]
Fig. DM2
2-4-11T6410DA
(S-1)
[1]
(S-1)
Fig. DM3
[7]
[3]
(L-1)
[6]
(L-2)
(P-1)
[46]
[4]
(L-3)
[5]
Fig. DM5
Pin D
Pin C
Slots B
First, while pushing the locking tab as
shown at right, slide and pull up the right
side on [2] to release Pin A and Pin B from
the slots A.
Then, remove Pin C and Pin D on [2] from
the slots B as shown.
[2]
Pin A
Locking tab
2
Pull up
A
1
Slide
Pin B
Slot A
Slot A
View for A
Fig. DM4
Desolder
from bottom
(S-2)
View for A
[47]
(L-14)
A
Lead with
Red Stripe
Fig. DM6
2-4-12T6410DA
[9]
)
)
(S-4)
[8]
A
[14]
(S-5)
[16]
(S-6)
[15]
(S-3)
Adj. Screw
[13]
LDG
Belt
Desolder
from bottom
Lead with White Stripe
View for A
[8]
Fig. DM7
[11]
(L-4)
(P-3)
[12]
[10]
Fig. DM9
[18]
(L-5)
[17]
[19]
(P-4
(P-2
Pin of [12]
View for A
Pin of [10]
Groove of [28]
[28]
A
When reassembling [10] and
[12], confirm that pin of [10]
and pin of [12] are in the
groove of [28] as shown.
Fig. DM8
(S-7)
Fig. DM10
2-4-13T6410DA
1
Cap Belt
]
[20]
(S-8)
[23]
(C-4)
(P-5)
(P-5)
[22]
(L-6)
(C-1)
[21
Fig. DM1
Pin on
bottom
of [23]
[28]
When installing [23], install
the spring (P-5) to [28] as
shown in the left figure, and
then install [23] while
pressing the spring (P-5) to
the direction of the arrow in
the left figure and confirming
that the position of the
spring (P-5) is placed as
shown in the left figure.
[23]
T op Vie w
Pin on [22]
[28]
Position of pin on [22]
Fig. DM12
2-4-14T6410DA
[25]
)
(C-3)
[31]
(P-6)
Refer to the Alignment
Section, Page 2-4-17.
(L-10)
[27]
[28]
Pin of [34]
(S-9)
(L-8)
[26]
(L-9)
Position of Mode Lever when installed
Pin of [31]
Pin of [35]
(C-2)
[24]
[30]
[29]
(L-11)
[40]
[36]
[33]
[32]
Fig. DM14
Break belt
(P-7
[34]
Bottom View
[28]
T op Vie w
Align [25] and [28] as shown.
First groove on [28]
First tooth on [44]
[28]
When reassembling [28],
align the first groove on
[28] to the first tooth on
[44] as shown.
The following procedures describe how to align the
individual gears and levers that make up the tape
loading/unloading mechanism. Since information
about the state of the mechanism is provided to the
System Control Circuit on ly through the Mode Switch,
it is essential that the correct relationship between
individual gears and levers be maintained.
All alignments are to be performed with the mechanism in Eject mode, in the sequenc e given. Each
procedure assumes th at all pr evious pro cedures hav e
been completed.
IMPORTANT:
If any one of these al ignments is not p erformed properly, even if off by only one tooth, th e unit will unload
or stop and it m ay res ult in damag e t o the m echan ical
or electrical parts.
Alignment points in Eject Position
T op View
Alignment 1
Loading Arm (SP) and (TU) Assembly
Install Loading Arm ( SP) and (TU) Assembly so that
their triangle marks point to each other as shown in
Fig. AL2.
Alignment 2
Mode Gear
Keeping the two triangles pointing at each other, install
the Loading Arm (TU) Assem bly so that the last tooth
of the gear meets the most ins ide teeth of the Mode
Gear. See Fig. AL2.
Triangle Marks
Loading Arm
(TU) Assembly
Mode Gear
Alignment 1
Loading Arm
(SP) Assembly
Last T ooth
Alignment 2
Most inside teeth
of Mode Gear
Fig. AL2
Bottom View
Alignment 1
Alignment 3
Alignment
Fig. AL1
Alignment 3
Cam Gear (A), Rack Assembly
Install the Rack As sembly so that the f irst to oth on the
gear of the Rack Assembly meets the firs t groove on
the Cam Gear (A) as shown in Fig. AL3.
B2996500017189
B3996500017217 LOADING MOTORB529996500008504 CLEANER ASS. MK10
B8996500017191 PULLEY ASS. MK12B553996500012233 REV SPRING MK11
B9996500016632 MOVING GUIDE S PREP. MK12B555996500016663 RACK ASS. MK12
B10996500016633 MOVING GUIDE T PREP. MK12B557996500008519 MOTOR PULLEY U5
B11996500016634 LOADING ARM(TU) ASS. MK12B558996500018131 LOADING MOTOR
B12996500016635 LOADING ARM(SP) ASS. MK12B559996500017204 CLUTCH ASS. MK12
B31996500018127 AC HEAD ASS. MK12(TVCR)B560996500008522 KICK SPRING MK10
B35996500016637 TAPE GUIDE ARM ASS. MK12B561996500008523 F DOOR SPRING MK10
B37996500017192 CAPSTAN MOTORB562996500016665 C DRIVE LEVER(SP) MK12
B52996500008593 CAP BELT MK10B563996500016666 SLIDER SHAFT MK12
B73996500012210 FE HEAD ASS. MK11B564996500017205 M GEAR MK12
B74996500008555 PRISM MK10B565996500017206 SENSOR GEAR MK12
B121996500016640 WORM MK12B567996500016669 PINCH ARM(B) MK12
B126996500018128 PULLEY MK12B568996500016670 BT ARM MK12
B133996500017193 IDLER GEAR MK12B569996500017207 CAM HOLDER(F) MK12
B134996500017194 IDLER ARM MK12B570996500012240 CAM RACK SPRING(HI) MK11
B148996500012368 TG CAP MK11B571482253213159 P.S.W CUT 1.6X4.0X0.5T
B300996500016643 C DRIVE LEVER(TU) MK12B573996500017208 REEL(SP)(D2) MK12
B303996500018129 F DOOR OPENER MK12B574996500017209 REEL(TU)(D2) MK12
B313996500016645 C DRIVE SPRING MK12B587996500016674 TENSION LEVER ASS. MK12
B347996500008445 GUIDE HOLDER A MK10B590996500018132 BRAKE ARM(TU) MK12
B354996500018130 SLIDER(TU) MK12B591996500017210 BAND BRAKE(TU) MK12
B355996500016647 SLIDER(SP) MK12B592996500017211 TG POST MK11
B359996500008449 CLEANER LEVER MK10L1051996500005359
B411996500016649 PINCH SPRING MK12L1321482250214009
B414996500017195 M BRAKE(SP) ASS. MK12L1406996500008643 AC HEAD SCREW MK9
B416996500017196 M BRAKE(TU) ASS. MK12L1450482250214671