The following waveforms were measured at the point of the corresponding
NOTE:
balloon number in the schematic diagram.
H-1
15 0.5V 5ms/div
Page 5
WAVEFORMS
16 10.0V 5ms/div
17 2.0V 20µs/div
18 200mV 20µs/div
21 50.0V 20µs/div
CRT
19 50.0V 20µs/div
20 50.0V 20µs/div
The following waveforms were measured at the point of the corresponding
NOTE:
balloon number in the schematic diagram.
H-2
Page 6
MECHANICAL EXPLODED VIEW
114
203
203
L503
203
J801
PCB110
(CRT PCB)
209
209
209
124
209
210
209
123
209
V801
133
103
113
109
203
110
104
A
102
108
105
202
101
201
106
107
201
PCB030
(OPERATION PCB)
111
112
SP351
201
I-1
Page 7
MECHANICAL EXPLODED VIEW
202
208
208
202
202
208
125
132
122
120
206
118
212
207
212
213
121
117
204
120
115
115
TU601
116
FB401
117
131
117
204
PCB010
(SYSCON PCB)
119
130
207
126
205
A
129
128
127
I-2
211
Page 8
503
335
CHASSIS EXPLODED VIEW (TOP VIEW)
367
503
510
M2003
300
UN4001
349
336
359
368
357
318
303
328
512
AA
366
319
361
309
314
355
313
508
AD
358
H5002
BA
366
502
306
505
334
310
512
AB
AA
321
348
313
506
508
315
338
AD
507
304
AB
317
H5001
305
369
353
501
320
502
356
AA
329
330
AA
AA
301
364
347
AA
M101
PCB550
(DECK PCB ASS'Y)
316
AD
323
CLASS
GREASE
OIL
365
363
AD
AD
AD
352
PART NO.
G-555G
G-488M
FL-721AC
MG-33AD
FL OIL No. 6115BA
351
MARK
AA
AB
I-3
515
509
502
AD
324
360
NOTE:
Applying positions AA, AB, AC, AD and BA for
the grease or oil are displayed for this section.
Check if the correct grease or oil is applied for
each position.
AD
362
511
Page 9
CHASSIS EXPLODED VIEW (BOTTOM VIEW)
302
300
307
327
308
354
513
326
350
341
322
514
AA
340
511
AA
342
AD
AA
343
511
339
AA
AD
503
345
AA
AA
514
AC
M2001
331
AB
346
AA
AA
344
333
AA
332
346
311
312
325
AD
CLASS
GREASEG-555G
OIL
PART NO.
G-488M
FL-721AC
MG-33
FL OIL No. 6115BA
AD
MARK
AA
AB
AD
504
I-4
AA
AA
NOTE:
Applying positions AA, AB, AC, AD and BA for
the grease or oil are displayed for this section.
Check if the correct grease or oil is applied for
each position.
31085OP200292 REEL,T (S)51282Q2647C5N POLYSLIDER WASHER2.6x4.7xT0.25
31185OA300061 LOADING ARM S ASS'Y51382P184505N POLYSLIDER WASHER(CUT)1.8x4.5xT0.5
31285OA300062 LOADING ARM T ASS'Y51483ETW30000 E-RING3.0
31385OA400209 GUIDE ROLLER ASS'Y515810A126504 SCREW/WASHER(A)M2.6x5
31485OA400188 BASE,INCL S ASS'Y
31585OA400196 BASE,INCL T(S) ASS'YCP101069R740018 CONNECTOR PCB SIDE52044-0445
31685OA400199 P5-3 ARM ASS'Y(S)H50011523D91034 HEAD (AUDIO CONTROL)HVMXA1072A
31785OA400205 PINCH ROLLER BLOCKH50021543D02013 HEAD (FULL ERASE)HVFHP0032A
31885OA400175 TENSION ARM ASS'Y ! M1011596P78001 MOTOR (LOADING)MXN13FB11H
31985OA400184 TENSION BAND ASS'Y (S) ! M20011510398030 CAPSTAN DD UNITF2QSB02
32085OA400178 PINCH ROLLER LEVER ASS'YPCB550A4C831B550 DECK PCB ASS'YVE8851
32185OA600188 BRAKE T ASS'Y (S)Q1010000700320 TRANSISTOR,PHOTORPT-38PB113
32285OA600191 CAP BRAKE ASS'Y(S) ! UN4001A545A0A500 CYLINDER UNIT ASSYA545A0A500
32385OA900213 LINK ASS'Y
32485OA900216 LINK LEVER ASS'Y
32585OP200284 LEVER,CLUTCH (S)
32685OP200285 ACTUATOR,CLUTCH
32785OP200298 GEAR,COUPLING(S2)
32885OP200291 REEL,S (S)
32985OP600541 WORM
34085OP600544 GEAR,MIDDLE
34185OP600554 CAM,MAIN (S)
34285OP600546 CAM,P5
34385OP600565 CAM,PINCH ROLLER
34485OP600561 ROD,MAIN(S)
34585OP700035 REFLECTOR,LED
34685OP800318 SPRING,LOADING GEAR
34785OP800334 SPRING,P5 (S)
34885OP800335 SPRING,BRAKE T (S)
34985OP800322 SPRING,TENSION
35085OP800336 SPRING,CAP BRAKE (S)
35185OP800342 SPRING,LOCKER (S)
35285OP800326 SPRING,LINK
35385OP800328 SPRING,DAMPER
35485OP800330 SPRING,RING
35585OP800337 SPRING,SS BRAKE (S)
35685OP900680 OPENER,CASS
35785OP900704 CASS SIDE L
35885OP900684 CASS SIDE R
35985OP900709 TAPE GUIDE L (P,R)
IC601I06FC12030 IC M61203BFPL400802167F101J COIL100 UH
IC1001I56F57043A IC OEC7043AL400902167F101J COIL100 UH
IC1002I9UJ0T600H IC PST600HL401002167F101J COIL100 UH
! IC1003I07SQ955AN IC BA6955ANorL4011021LA6220J COIL22 UH
IC1099A546A5A015 IC S-24C02BDP-11T40103305Y002S TRANS, HORIZONTAL DRIVE 305Y002
IC4001I03F31077B IC LA71077BM-MPBor ! T501048129015S TRANSFORMER, SWITCHING 8129015S
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
1
ABCD E F GH
G-12
Page 28
ABCD E F GH
8
7
6
5
4
3
2
PCB010
VMX180
FROM MICON
TV_POWER_H
FROM/TO CHROMA/IF
V_OUT
V_FEEDBACK
H_OUT
H.PLUSE
F_P.CON+15V
HEATER
H_GND
FROM POWER
H_GND
AT+25V
FROM/TO MICON
X_RAY
X-RAY_TEST
GND
ACL
180V
GND
+B
SWITCHING
DTC114TKA
Q403
DEFLECTION SCHEMATIC DIAGRAM
(SYSCON PCB)
V.OUTPUT IC
IC401 LA78040
+
VccGND
1234567
DRIVER
Q402
2SB892
26.026.0
25.0
R422
4.7 2W
47K
R402
R410
4.8
SWITCHING
Q401
DTC143EKA
0
4.9
0
2250VMHE
C408
2.7K 1/2W
0.1
0.1
W897
W808
B405
BL01RN1-A63
W813
R441_1
56K
W831
3.6 25.9 2.0012.5 26.3 3.7
D401
11E1-EIC
W838
15
R439
R440_2
51K
D408
SWITCHING
DTA144EKA
AMP
22K +-1%
HZ27-1L
HZ11B3L
Q404
D409
THERMAL PROTECTION
PUMP UP
C406_1
6.8K
R443
10.8
0
0
10035V MHE
R444
18
H-DRIVE
2SC2271
+-1%
22K
W847
R401
470
R411_1
C416
22P CH
0.5
Q405
R442_1
15K +-1%
R420_1
+-1%
8.2K
33K +-1%
31.0
0
R415_1
D412
RMPG06J
R413
3.3K
2.2 1/2W
+-1%
R456
R414
C405
C417
4.7K 1/2W
C433_2
R416
4750VMHE
82K
18K
150V KA
560P500VB
31.0
0.2
22.3
R417
C407
NC
R419
330 1/2W
560 1/2W
100025VYK
T401
305Y002
0
34
2
1
6
1.3
2250V
MHE
C418_2
R449
68 1/4W
C438
680P500VB
C413
17
R460
TF
0.1100V
1050VYK
C403
W816
H.OUTPUT
2SD2627LSCBC11
100 1/4W
HS402
763WSA0004
Q406
1.3
R447
B403
BL01RN1-A63
262.0
0
R421
820 1/2W
L401
4.7mH 0909
1250VMHE
C422_1
68 1/2W
B402
BL01RN1-A63
C424
C423
0.00681.6KVECWH
0.47250VECWF
W890
16
HS401_1
763WSA0004
C425
W893
0.00122KVBP
W892
W860
W807
D410
MTZJ6.8B
W857
W837
C430_1
R450_2
2.7 2W
0.001500VB
C420
220P500VB
R423
10K 1/4W
D413
C431
RMPG06J
10250V YK
120K 1/4W
R453
262.0
136.0
135.0
22.3
8.1
NC
NC
1.5
NC
FB401 3219010F
COL
1
E180
6
B+
2
AFC
0
9
HEA
TER
10
GND
8
0
E12
4
E27
3
GND
8
E8
5
W811
GND
ABL
R490
47K 1/4W
68K 1/4W
R454
TO DY
CP401
B05B-DVS
5
4
3
2
NC
1
V801
A48AGY13X77
9
10
R
8
G
6
B
11
HV
F
S
0
11
0.7
7
0.47100VTF
C432
FOCUS
SCREEN
175
2
CD801
8M82025A
1
TO CRT
DEFLECTION SIGNAL
8
7
6
5
4
3
2
1
THE DC VOLTAGE AT EACH PART WAS
NOTE:
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
CAUTION: DIGITAL TRANSISTOR
CAUTION: DIGITAL TRANSISTOR
1
ABCD E F GH
G-14G-13
Page 29
ABCD E F GH
CRT SCHEMATIC DIAGRAM
8
TP801
BLUE AMP
R814
2SC4217
390
GREEN AMP
Q804_1
2.8
Q805_1
2SC4217
2.9
7
10
9
8
7
6
5
4
3
2
1
CP851B
51048-1000
FROM CHROMA/IF
(CP851A)
GND
CUT_OFF
G.OUT
B.OUT
R.OUT
HEATER
H_GND
180V
GND
CUT_OFF
G.OUT
B.OUT
R.OUT
NC
HEATER
H_GND
NC
180V
R811
4.7K
C809_1
820P CH
6
S001Y
5
19
132.5
2.5
TP802
20
132.1
2.5
(SYSCON PCB)
R802
15K 2W
R807
2.7K 1/4W
R805
15K 2W
R808
2.7K 1/4W
132.5
8
7
132.9
789
1
F
0
0
10
132.8
11
J801
CVT3275-5102
6
104.1
6
0
5
0
5
390
R815
R812
4.7K
C810
560P B
4
RED AMP
Q806_1
2SC4217
2.8
21
132.3
2.5
TP803
R810
15K 2W
R820
2.7K 1/4W
C819_1
0.00222KVB
3
R801
390
R816
R813
4.7K
C811
560P B
C805
2
100P CH
L801
100uH
H_GND
H_GND
FOCUS
1M 1/4W
SCREEN
C801
0.00222KVB
ACCESSORY
TM101
HG-23A04
R.SIGNAL
4
3
2
G.SIGNAL
PCB110
TCX312
GND
FROM DEFLECTION
CP801
TS-80P-02-V1
2
GND
1
B.SIGNAL
S801
1
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
1
ABCD E F GH
G-16G-15
Page 30
ABCD E F GH
8
(OPERATION PCB)
W802
7
OS753
PIC-28143TH5
0
GND
100P B
1
NC
5
4
3
2
6
7
3
5.0
B+
2
5.0
Vout
1
HEADPHONE_JACK
J351
HSJ2630-010070
R766
10 1/4W
R778
820
6
FROM/TO IN/OUT
CD757
(CP757)
CH2A019A
REMOCON_IN
10
9
GND
8
5
L005
HF57T18.5*10*10
7
6
5
4
3
2
1
AT+5V
POWER_ON_L
KEY_A
T-REC_LED
REC_LED
KEY_B
NC
NC
C781
0.001 B
POWER ON/OFF
C779
0.001 B
CH DOWN
SW751
SW799
SKHVBED010
SKHVBED010
R775
820
CH UP
SW798
SKHVBED010
W805
R776
1K
SW795
REC/OTR
SW796
VOL UP
SKHVBED010
SKHVBED010
R771
1K
R777
1.5K
SW791
STOP/EJECT
SW797
VOL DOWN
SKHVBED010
SKHVBED010
R772
1.5K
PLAY
SW792
W812
SKHVBED010
R773
2.7K
SW793
FF/CUE
SKHVBED010
R774
5.6K
SW794
REW/REV
SKHVBED010
W811
R351
22 1/4W
C755_1
R350_1
22 1/4W
2206.3VKA
C752
W815
W814
C751
0.1 F
D793
REC/OTR
R793
SLZ-936C-11-S-T1
270
T-REC
D791
R754
270
POWER/PLAY
SLZ-936C-11-S-T1
D792
R761
SLZ-936C-11-S-T1
270
8
7
6
5
OPERATION SCHEMATIC DIAGRAM
4
10016VKA
C382
HEH
4
3
FROM/TO IN/OUT
(CD353)
CD351_1
CH27090A
FRONT_VIDEO_IN
7
6
GND
FRONT_AUDIO_IN
5
SOUND_GND
SP351
8 OHM
4
3
2
1
CD352
CH12435A
1
2
SOUND_OUT
SP_OUT
GND
SP +
SP -
THE DC VOLTAGE AT EACH PART WAS MEASURED
NOTE:
WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST
WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL.
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
2
SPEAKER
810-47-171
1
E
VIDEO
FRONT AV JACK
JPJ3811-01-430
ARESINCE THESE PARTS MARKED BYCAUTION:
123
J701_1
AUDIO L
DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
C701
0.022 F
PCB030
TEXA28
ETANTLES PIECES REPAREES PAR UNATTENTION:
PLAYBACK VIDEO SIGNAL
AUDIO SIGNAL(REC)
4
3
2
1
ABCD E F GH
G-18G-17
Page 31
ABCD E F GH
8
LOADING MOTOR
M101
(DECK PCB)
7
S105
S106
5.1
0
BOT SENSOR
Q101
RPT-38PB113
6
S103 S104S101 S102
8
7
6
DECK SCHEMATIC DIAGRAM
5
FROM/TO MICON
CP101
52044-0445
LDM+
4
LDM-
3
2
BOT
1
VCC
4
PCB550
VE8851
3
5
4
3
2
1
G-19
2
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
ETANTLES PIECES REPAREES PAR UNATTENTION:
THE DC VOLTAGE AT EACH PART WAS
NOTE:
MEASURED WITH THE DIGITAL TESTER
DURING PLAYBACK
NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
1
ABCD E F GH
G-20
Page 32
ABCD E F GH
INTERCONNECTION DIAGRAM
8
7
HEADPHONE JACK
J351
SPEAKER
SP351
8 OHM
1
5
4
3
2
6
7
CD352
1
2
SP +
SP -
1
HEH
4
123
E
FRONT AV JACK
J701
8
COMMAND TRANSMITTER
OS753
3
GND
2
B+
1
Vout
9
8765432
10
OPERATION PCB
7654321
FROM
TM101
PCB030
TEXA28
TO
OS753
TM101
SENSOR
MAINHALL
ROTOR
MAGNETCOIL
MR
FG SENSOR
O
VCC
G
7
L005
1
CP757CD757
6
5
BLADE
WIDE
AC120V_60Hz
CD501
WHITE
BLACK
DEGAUSS COIL
L503
CP501
21
21
CP502
21
2
1
FBT
FB401
KEY_B
REC_LED
T-REC_LED
KEY_A
POWER_ON_L
8765432
9
REMOCON_IN
10
GND
AT+5V
4
V801
CRT
H.V
3
ANODE
DY
CD801
CP801
1
GND
2
GND
FOCUS SCREEN
CP401
1
NC
2
3
4
5
CP353CD351
GND
SP_OUT
SOUND_OUT
GND
SOUND_GND
FRONT_AUDIO_IN
FRONT_VIDEO_IN
7654321
CP4002
6
5
4
3
2
1
CP1006
1
2
3
4
CP4003
2
1
CP1004
AUDIO PB
AUDIO REC
CTL+
CTLAE HEAD(-)
AE HEAD(+)
VCC
BOT
LDMLDM+
FE HEAD (GND)
FE HEAD (HOT)
1
2
3
4
5
6
7
8
GND
MOTOR_GND
I LIMIT
CTL
VCO
FG
CAP/M/F/R
VCC(5V)
CD4001
FFC
CD1001
FFC
1
2
3
4
5
6
7
8
HALL
VCC
AUDIO PB
6
AUDIO REC
5
CTL+
4
CTL-
3
AE HEAD(-)
2
AE HEAD(+)
1
CP101
VCC
BOT
LDMLDM+
2
FE HEAD (GND)
1 FE HEAD (HOT)
OUT
HALL
SWITCH
IN
LOGIC
HEAD AUDIO CONTROL ASS’Y
H5001
1
2
3
4
FULL ERASE HEAD ASS’Y
H5002
CAPSTAN DD UNIT ASS’Y
DECK MECHA ASS’Y
M2001
AUDIO
CONTROL
AE
RED
WHITE
BOT SENSOR
Q101
DECK PCB
PCB550
VE8851
LM
LOADING MOTOR
M101
6
5
4
3
TUNER PACK
FOCUS
SCREEN
6
CRT SOCKET
J801
F
7
8
9
5
4
PCB110
TCX312
3
1
2
CRT PCB
S801
CP851ACP851B
180V
H.GND
HEATER
R.OUT
B.OUT
G.OUT
GND
1
2
3
4
5
6
7
8
9
10
SYSCON PCB
PCB010
VMX180
1
2
3
4
5
6
7
8
CUT_OFF
9
10
1
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
THE TIMETHIS INTERCONNECTION DIAGRAM IS THE LATEST ATNOTE:
TU601
1415
11
IF
10
NC
+30V
9
8
NC
+5V
7
6
NC
SDA
5
SCL
4
3
2
NC
AGC
1
1213
CRITICAL FOR SAFETY,USE ONES
DESCRIBED IN PARTS LIST ONLY
ARESINCE THESE PARTS MARKED BYCAUTION:
CP1005
5
4
3
2
1
CP4001
1
2
3
4
CYL DRIVE
CYL GND
CYL FG
CYL +B
CYL PG
SP-CH2 (L)
SP_COM
SP-CH1 (R)
CD1002
FFC
DANGEREUSES AN POINT DE VUE SECURITE
N’UTILISER QUE CELLS DECRITES
DANS LA NOMENCLATURE DES PIECES
CYL DRIVE
CYL GND
CYL FG
CYL +B
CYL PG
CYLINDER UNIT ASS’Y
UN4001
1
NC
2
3
4
ETANTLES PIECES REPAREES PAR UNATTENTION:
5
4
3
2
1
MICRO MOTOR
M2003
VCC
DRIVE CONTROL
GND
FG
PG
FG.PG GND
CH2
CH1
2
HEAD
1
ABCD E F GH
G-22G-21
Page 33
SERVICING NOTICES ON CHECKING
As for the places which need special attentions,
they are indicated with the labels or seals on the
cabinet, chassis and parts. Make sure to keep the
indications and notices in the operation manual.
2. AVOID AN ELECTRIC SHOCK
There is a high voltage part inside. Avoid an
electric shock while the electric current is
flowing.
3. USE THE DESIGNATED PARTS
The parts in this equipment have the specific
characters of incombustibility and withstand
voltage for safety. Therefore, the part which is
replaced should be used the part which has
the same character.
Especially as to the important parts for safety
which is indicated in the circuit diagram or the
table of parts as a mark, the designated
parts must be used.
4. PUT PARTS AND WIRES IN THE
ORIGINAL POSITION AFTER
ASSEMBLING OR WIRING
There are parts which use the insulation
material such as a tube or tape for safety, or
which are assembled in the condition that
these do not contact with the printed board.
The inside wiring is designed not to get closer
to the pyrogenic parts and high voltage parts.
Therefore, put these parts in the original
positions.
5. TAKE CARE TO DEAL WITH THE
CATHODE-RAY TUBE
In the condition that an explosion-proof cathoderay tube is set in this equipment, safety is
secured against implosion. However, when
removing it or serving from backward, it is
dangerous to give a shock. Take enough care to
deal with it.
6. AVOID AN X-RAY1. KEEP THE NOTICES
Safety is secured against an X-ray by considering about the cathode-ray tube and the high
voltage peripheral circuit, etc.
Therefore, when repairing the high voltage peripheral circuit, use the designated parts and
make sure not modify the circuit.
Repairing except indicates causes rising of high
voltage, and it emits an X-ray from the cathoderay tube.
PERFORM A SAFETY CHECK AFTER
7.
SERVICING
Confirm that the screws, parts and wiring which
were removed in order to service are put in the
original positions, or whether there are the
portions which are deteriorated around the
serviced places serviced or not. Check the
insulation between the antenna terminal or
external metal and the AC cord plug blades.
And be sure the safety of that.
(INSULATION CHECK PROCEDURE)
1.
Unplug the plug from the AC outlet.
2.
Remove the antenna terminal on TV and turn
on the TV.
3.
Insulation resistance between the cord plug
terminals and the eternal exposure metal
[Note 2] should be more than 1M ohm by
using the 500V insulation resistance meter
[Note 1] .
4.
If the insulation resistance is less than 1M
ohm, the inspection repair should be
required.
[Note 1]
If you have not the 500V insulation
resistance meter, use a Tester.
[Note 2]
External exposure metal: Antenna terminal
Earphone Jack
HOW TO ORDER PARTS
Please include the following informations when you order parts. (Particularly the VERSION LETTER.)
1. MODEL NUMBER and VERSION LETTER
The MODEL NUMBER can be found on the back of each product and the VERSION LETTER can be
found at the end of the SERIAL NUMBER.
2. PART NO. and DESCRIPTION
You can find it in your SERVICE MANUAL.
A1-1
Page 34
CONTENTS
SERVICING NOTICES ON CHECKING.....................................................................................
HOW TO ORDER PARTS ..........................................................................................................
19 inch(480.0mmV):Measured diagonally
Color CRT 90 degree deflection
3 -Speed 1/2" Video Cassette Recorder
VHSRecorder/Player
VHS-CPlayer
G-2.VCR Format
VHS StandardNTSCPALSECAMPAL-MPAL-N
VHS Hi-Fi Audio System
G-3.Video Recording System:Rotary, slant azimuth two head helical scan system
Luminance Component:FM recording
Chrominance Component:Low frequency converted direct recording
G-4.Broadcasting System US System M
G-5.Color SystemNTSCPALSECAM or Monochrome signa l
G-6.NTSC Playback(PAL 60Hz)YesNo
G-7.MESECAMYesNo
G-8.Cassette Tape
VHS type video cassette tape Width 12.65mm (1/2 Inch)
VHS-C type video cassette tape Width 12.65mm (1/2 Inch)
at LPMode 100 Hz ~ 6 kHz
at SLPMode 100 Hz ~ 4 kHz
Hi-Fi Audio SignalNONE
Depth Multiplex Recording Rotary, Slant Azimuth Two Head
System Helical Scan System
Dynamic Range : More than -- dB
Wow And Flutter : Less than -- % Wrms
Channel Separation : More than -- dB
Harmonic Distortion : Less than -- %
G-23.Heads
Video 2 Rotary Heads
FM Audio Rotary Heads
Audio / Control 1 Stationary Head ( Mono Stereo(L,R) )
Erase 1 Full Track Erase
Wake Up TimerYes ProgramsNo
G-37.Timer back up Time
More than 1/12 Minutes (at P ower Off Mode)
A3- 3
Page 38
G-38.Terminals
VHF/UHF Ante nna Input Din Type F-Type France Type
Front Vide o Input( R CA ø8.3)
Front Audio Input( R CA ø8.3)
Re a r Vide o Input( R C A ø8.3)
Re a r Audio Input( R C A ø8.3)
Re a r Vide o Output( R CA ø8.3)
Re a r Audio Output( RC A ø8.3)
21 PinDC Jack 12V (Center +)
AC InletExt. Speaker
DiversityEar Phone
Head Phone
G-39.Indicator
PowerStand ByRec/OtrT-RecTape In
(Red)( ) (Red) (Red)( )
On TimerOTPB
( )( )
G-40.On Screen Display
MenuTimer Rec S e t
G-CODE(or SHOWVIEW or PLUSCODE)No. Entry
Clock/DateCH/AV
Tape CounterTape Speed
Sleep TimeTape In
Control Level ( Vol, Bright, Cont, Color, Tint, Sharpness)
Control Level ( Vol, Bright, Cont, Color, Sharpness)
Play/Stop/FF/Rew/Rec/OTR/T-Rec/Pause/Eject(Symbol Mark)
Auto Tracking/Manual TrackingCaption/Text 1/2
IndexRepeat
Add/DeleteStereo/SAP
Muting
G-41.OSD Language
EngGerFreSpaItaPorJan
OSD Language Setting
EngGerFreSpaItaPorJan
GENERAL SPECIFICATIONS
Ch Set UpTV/CATVAuto Ch Memory
Add/DeleteGuide Ch Se t
TV Set UpV-Chip S etOn/Off Timer
PictureAudio
Sap On/Off
Auto Repeat On/Off
System Set UpClock Set( Calendar12H 24H)
LanguageAuto Clock On/Off
Standard TimeDaylight Saving Time
Not Applicable
G-42.Speaker
PositionFrontSideBottom
Size 3 inches
Imp. 8 ohm x 1 pcs
OutputMax 1.5 W
10% 1.0 W (Typical)
G-43.EXT Speaker :Yes -- WImp -- ohm No
A3- 4
Page 39
GENERAL SPECIFICATIONS
G-44.Carton
Master Carton: Need No Need
Content: ---- Set
Material: ---- / ---- Corrugated Carton
Dimensions: ---- mm(W) ---- mm(D) ---- mm(H)
Description of Original YesNo
Gift Box : Material Double/Brown Corrugated Carton (with Photo Label)
Double/White Corrugated Carton (with Photo Label)
Double Full Color Carton W/Photo
Dimensions: 559 mm(W) 538 mm(D) 555 mm(H)
Design:As Per Buyer 's
Description of Origin:YesNo
Drop TestNatural Dropping At 1 Corner / 3 Edges / 6 Surfaces
Height25cm31cm46cm62cm80cm
Container Stuffing: 352 Sets / 40' container
G-45.Accessories
Channel FilmDew Caution Sheet
Owner's Manual( W /Gurantee Card) [English/Spanish]
AC Plug Adapter
Remote Control UnitQuick Set-up Sheet
Rod Antenna(One Pole Two Pole/ F-Type DIN Type France Type)
Loop Antenna( F-Type DIN Type France Type)
U/V MixerBattery (UM- 4 x 2 )
DC Car Cord ( Center+)AC Cord
Guarantee CardAV Cord (2Pin-1Pin)
Warning SheetRegistration Card(W/Guarantee Card)
Circuit DiagramPTB Sheet
Antenna Change Plug300 ohm to 75 ohm Antenna Plug
Service Facility ListEuro Warranty Information Sheet
Important Safeguard
G-46.Other Features
Auto Head CleaningIndex Search
Auto TrackingAuto Clock
VIDEO PLUS+(SHOWVIEW,G-CODE)Auto Shut Off
HQ (VHS Standard High Quality)
Auto Power On, Auto Play, Auto Rewind, Auto Eject
Forward / Reverse Picture SearchSQPB
One Touch PlaybackCATV
Auto CH MemoryJust Clock Function
Rental ModeClosed Caption
TV MonitorCM Skip(30secX6Times)
V-chip( USACanada)CM Advance
Energy StarDirty Head Warning
G-47.SwitchFront Power(Tact)Channel UpVolume Up
PlayChannel DownVolume Down
Pause/StillF.FWD/CueRew/Rev
System SelectEject/StopRec/OTR
One Touch PlaybackMain Power SW
Remove the screw 2 which are used for holding the Back
Cabinet.
3.
Remove the AC cord from the AC cord hook 3.
4.
Remove the Back Cabinet in the direction of arrow.
Front Cabinet
1
1
12
1
1
3
1
Back Cabinet
Fig. 1-1
Front Cabinet
1-3: VCR BLOCK (Refer to Fig. 1-3)
Remove the 2 screws 1.
1.
Disconnect the following connectors:
2.
(CP757, CP353, CP401 and CP502).
Unlock the support 2.
3.
Remove the VCR Block in the direction of arrow.
4.
1
CRT PCB
Fig. 1-2
1-2: CRT PCB (Refer to Fig. 1-2)
CAUTION: BEFORE REMOVING THE ANODE CAP,
DISCHARGE ELECTRICITY BECAUSE IT
CONTAINS HIGH VOLTAGE.
BEFORE ATTEMPTING TO REMOVE OR
REPAIR ANY PCB, UNPLUG THE POWER
CORD FROM THE AC SOURCE.
1.
Remove the Anode Cap.
(Refer to REMOVAL OF ANODE CAP)
2.
Disconnect the following connector: (CP801).
3.
Remove the CRT PCB in the direction of arrow.
Front Cabinet
VCR Block
1
2
UP TO
RELEASE
Fig. 1-3
B1-1
Page 42
DISASSEMBLY INSTRUCTIONS
1-4:
DECK SHIELD PLATE, DECK CHASSIS AND
BOTTOM SHIELD (Refer to Fig. 1-4)
1.
Remove the 3 screws 1.
2.
Remove the 3 screws 2.
3.
Remove the Deck Shield Plate in the direction of arrow (A).
4.
Disconnect the following connectors: (CP1004, CP1005,
CP1006, CP4001, CP4002 and CP4003).
5.
Remove the Deck Chassis in the direction of arrow (B).
6.
Remove the screw 3.
7.
Remove the Bottom Shield in the direction of arrow (C).
2
Deck Shield Plate
2
1
1
2
1
(A)
1-5: SYSCON PCB (Refer to Fig. 1-5)
1.2.Remove the screw 1.
Remove the Syscon PCB in the direction of arrow.
Syscon PCB
1
Deck Holder
Fig. 1-5
Deck Chassis
Syscon PCB
(B)
(C)
Bottom Shield
3
Fig. 1-4
B1-2
Page 43
DISASSEMBLY INSTRUCTIONS
2. REMOVAL OF DECK PARTS
2-1: TOP BRACKET (Refer to Fig. 2-1)
Remove the 2 screws 1.
1.
Slide the 2 supports 2 and remove the Top Bracket.
2.
NOTE
When you install the Top Bracket, install the screw (1)
first, then install the screw (2).
(2)
1
Top Bracket
2
Main Chassis
• Screw Torque: 5 ± 0.5kgf•cm
Top Bracket
2
Main Chassis
2-2: FLAP LEVER/TAPE GUIDE R (Refer to Fig. 2-2)
Move the Cassette Holder Ass'y to the back side.
1.
Remove the Polyslider Washer 1.
2.
Remove the Flap Lever.
3.
Unlock the 3 supports 2 and remove the Tape Guide R.
4.
(1)
1
Fig. 2-1
NOTE
When you install the Tape Guide L, install as shown in the
circle of Fig. 2-3-B. (Refer to Fig. 2-3-B)
Tape Guide L
REC Lever
• The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-B
2-4: CASSETTE HOLDER ASS'Y (Refer to Fig. 2-4)
Move the Cassette Holder Ass'y to the front side.
1.
Push the Locker R to remove the Cassette Side R.
2.
Remove the Cassette Side L.
3.
Main Chassis
Cassette Side R
Locker R
Tape Guide R
Flap Lever
2
2
2
Main Chassis
1
Fig. 2-2
2-3: TAPE GUIDE L (Refer to Fig. 2-3-A)
Move the Cassette Holder Ass'y to the back side.
1.
Unlock the 2 supports 1 and remove the Tape Guide L.
2.
Remove the REC Lever. (Recorder only)
3.
REC Lever
Tape Guide L
1
Cassette Side L
Main Chassis
Fig. 2-4
2-5: CASSETTE SIDE L/R (Refer to Fig. 2-5)
Unlock the 4 supports 1 and then remove the Cassette
1.
Side L/R.
NOTE
When you install the Cassette Side R, be sure to move the
Locker R after installing.
1
1
Locker R
Cassette Side R
1
1
Cassette Side L
Fig. 2-5
1
Main Chassis
• The REC Lever is not installed on the Video Cassette Player.
Fig. 2-3-A
B2-1
Page 44
DISASSEMBLY INSTRUCTIONS
2-6: LINK ASS'Y (Refer to Fig. 2-6)
Set the Link Ass'y to the Eject position.
1.
Remove the (A) side of the Link Ass'y first, then remove
2.
the (B) side.
Link Ass'y
(A)
Main Chassis
(B)
Link Ass'y
Main Chassis
Fig. 2-6
2-7: LOADING MOTOR ASS'Y (Refer to Fig. 2-7)
Remove the Link Lever.
1.
Remove the Dumper Spring.
2.
Remove the 2 screws 1.
3.
Unlock the support 2 and remove the Loading Motor
4.
Ass'y.
Unlock the 2 supports 3 and remove the Deck PCB
5.
(BOT).
1
Dumper Spring
Loading Motor Ass'y
2
2-9: TENSION ASS'Y (Refer to Fig. 2-9-A)
Move the Inclined S Ass'y to the back side.
1.
Remove the Tension Spring.
2.
Unlock the support 1 and remove the Tension Arm
3.
Ass'y.
Remove the Tension Adjust.
4.
Unlock the 2 supports 2 and remove the Tension Band
5.
Ass'y.
Unlock the support 3 and remove the Tension Holder.
6.
Remove the SS Brake Spring.
7.
Remove the SS Arm Brake.
8.
Tension Adjust
2
Tension Spring
SS Brake Spring
SS Arm Brake
2
1
3
Tension Band Ass'y
Tension Arm Ass'y
Tension Holder
Inclined S Ass'y
Fig. 2-9-A
NOTE
When you install the Tension Adjust, install as shown in
Fig. 2-9-B. (Refer to Fig. 2-9-B)
3
Main Chassis
• Screw Torque: 5 ± 0.5kgf•cm
1
Deck PCB
(BOT)
2-8: SENSOR COVER L3 (Refer to Fig. 2-8)
Unlock the support 1 and remove the Sensor Cover L3.1.
Main Chassis
Sensor Cover L3
1
Link Lever
Fig. 2-7
Fig. 2-8
Adjust the direction of the Marker to inside.
2-10: T BRAKE ASS'Y (Refer to Fig. 2-10)
Remove the T Brake Spring.
1.
Remove the T Brake Ass'y.
2.
T Brake Ass'y
T Brake Spring
Fig. 2-9-B
Fig. 2-10
B2-2
Page 45
DISASSEMBLY INSTRUCTIONS
2-11: S REEL/T REEL (Refer to Fig. 2-11)
Remove the S Reel and T Reel.
1.
Remove the 2 Polyslider Washers 1.
2.
NOTE
Take care not to damage the gears of the S Reel and T
1.
Reel.
The Polyslider Washer may be remained on the back of
2.
the reel.
Take care not to damage the shaft.
3.
Do not touch the section "A" of S Reel and T Reel. (Use
4.
gloves.) (Refer to Fig. 2-11) Do not adhere the stains
on it.
When you install the reel, clean the shaft and oil it (FL
5.
OIL #6115). (If you do not oil, noise may be heard in FF/
REW mode.)
After installing the reel, adjust the height of the reel.
6.
(Refer to MECHANICAL ADJUSTMENT)
S Reel
(A)
1
T Reel
(A)
1
NOTE
Do not touch the Pinch Roller. (Use gloves.)
1.
When you install the Pinch Roller Block, install as shown
2.
in the circle of Fig. 2-12-B. (Refer to Fig. 2-12-B)
Fig. 2-12-B
2-13: A/C HEAD (Refer to Fig. 2-13-A)
Remove the screw 1.
1.
Remove the A/C Head Base.
2.
Remove the 3 screws 2.
3.
Remove the A/C Head and A/C Head Spring.
4.
NOTE
Do not touch the A/C Head. (Use gloves.)
1.
When you install the A/C Head Spring, install as shown
2.
in Fig. 2-13-B. (Refer to Fig. 2-13-B)
When you install the A/C Head, tighten the screw (1)
3.
first, then tighten the screw (2), finally tighten the screw
(3).
2-12: PINCH ROLLER BLOCK/P5-3 ARM ASS'Y
(Refer to Fig. 2-12-A)
Remove the P5 Spring.
1.
Remove the screw 1.
2.
Unlock the 2 supports 2 and remove the Cassette
3.
Opener.
Remove the Pinch Roller Block, Pinch Roller Arm
4.
Spring, Pinch Roller Lever Ass'y and P5-3 Arm Ass'y.
P5 Spring
P5-3 Arm Ass'y
1
2
Cassette Opener
2
Pinch Roller Block
Pinch Roller Arm Spring
Pinch Roller Lever Ass'y
Main Chassis
Fig. 2-11
(3)
(1)
2
2
(2)
1
• Screw Torque: 4 ± 0.5kgf•cm (Screw 1)
2
Spring Position
A/C Head
A/C Head Spring
A/C Head Base
Fig. 2-13-A
Fig. 2-13-B
2-14: FE HEAD (RECORDER ONLY) (Refer to Fig. 2-14)
Remove the screw 1.
1.
Remove the FE Head.
2.
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-12-A
B2-3
FE Head
• The FE Head is not installed on the Video Cassette Player.
• Screw Torque: 4 ± 0.5kgf•cm
1
Fig. 2-14
Page 46
DISASSEMBLY INSTRUCTIONS
2-15: AHC ASS'Y/CYLINDER UNIT ASS'Y
(Refer to Fig. 2-15)
Unlock the support 1 and remove the AHC Ass'y.
1.
Remove the 3 screws 2.
2.
Remove the Cylinder Unit Ass'y.
3.
NOTE
When you install the Cylinder Unit Ass'y, tighten the
screws from (1) to (3) in order while pulling the Ass'y
toward the left front direction.
AHC Ass'y
Cylinder Unit Ass'y
2
(2)
• Screw Torque: 3 ± 0.5kgf•cm
(1)
2
2
(3)
1
Fig. 2-15
2-16: CAPSTAN DD UNIT (Refer to Fig. 2-16)
Remove the Capstan Belt.
1.
Remove the 3 screws 1.
2.
Remove the Capstan DD Unit.
3.
1
Middle Gear
E-Ring
Main Cam
Pinch Roller Cam
2
Joint Gear
P5 Cam
Fig. 2-17-A
NOTE
When you install the Pinch Roller Cam, P5 Cam and Main
Cam, align each marker. (Refer to Fig. 2-17-B)
Pinch Roller Cam
Check the hole of Main
Chassis can be seen.
Marker
Main Cam
P5 Cam
Capstan Belt
Capstan DD Unit
1
1
1
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-16
2-17: MIDDLE GEAR/MAIN CAM (Refer to Fig. 2-17-A)
Remove the Polyslider Washer 1, then remove the
1.
Middle Gear.
Remove the E-Ring, then remove the Main Cam, P5
2.
Cam and Pinch Roller Cam.
Remove the Polyslider Washer 2, then remove the
3.
Joint Gear.
Fig. 2-17-B
2-18: CLUTCH ASS'Y (Refer to Fig. 2-18)
Remove the Polyslider Washer 1.
1.
Remove the Clutch Ass'y, Ring Spring and Coupling
2.
Gear.
Unlock the 2 supports 2 and remove the Clutch Lever.
3.
1
Clutch Ass'y
Ring Spring
Coupling Gear
Clutch Lever
2
2
Fig. 2-18
B2-4
Page 47
DISASSEMBLY INSTRUCTIONS
2-19: LOADING GEAR S/T ASS'Y (Refer to Fig. 2-19-A)
Remove the E-Ring 1 and remove the Main Loading
1.
Gear.
Remove the Capstan Brake Spring.
2.
Slide the Main Rod and remove the Capstan Brake
3.
Ass'y.
Remove the Main Rod, Tension Lever, Clutch Actuator,
4.
Idler Arm Ass'y.
Remove the screw 2.
5.
Remove the LED Reflecter.
6.
Remove the Loading Arm S Ass'y and Loading Arm T
7.
Ass'y.
8.
Remove the Loading Gear S and Loading Gear T.
9.
Remove the Loading Gear Spring.
Capstan Brake Spring
Main Rod
Idler Arm Ass'y
LED Reflecter
Clutch Actuator
Capstan Brake Ass'y
2
1
Main Loading Gear
Tension Lever
Loading Gear T
Loading Gear
Spring
Loading Arm T Ass'y
Loading Gear S
Loading Gear
Spring
2. When you install the Clutch Actuator, install as shown in
the circle of Fig. 2-19-C. (Refer to Fig. 2-19-C)
Clutch Actuator
Fig. 2-19-C
2-20: INCLINED S/T ASS'Y (Refer to Fig. 2-20)
Unlock the support 1 and remove the P4 Cover.
1.
Remove the screw 2.
2.
Unlock the support 3 and remove the Loading Gear
3.
Holder.
Remove the Inclined S.
4.
Remove the Inclined T.
5.
Remove the 2 screws 4, then remove the Guide Roller.
6.
NOTE
Do not touch the roller of Guide Roller.
2
Loading Gear Holder
Guide Roller
3
Loading Arm S Ass'y
• Screw Torque: 5 ± 0.5kgf•cm
Fig. 2-19-A
NOTES
1. When you install the Loading Arm S Ass'y, Loading Arm
T Ass'y and Main Loading Gear, align each marker.
(Refer to Fig. 2-19-B)
Marker
Main Loading Gear
Marker
Loading Arm T Ass'y
Loading Arm S Ass'y
4
Inclined S
• Screw Torque: 5 ± 0.2kgf•cm (Screw 2)
• Screw Torque: 0.7 ± 0.2kgf•cm (Screw 4)
Guide Roller
4
Inclined T
P4 Cover
1
Fig. 2-20
Fig. 2-19-B
B2-5
Page 48
DISASSEMBLY INSTRUCTIONS
3. REMOVAL OF ANODE CAP
Read the following NOTED items before starting work.
After turning the power off there might still be a potential
*
voltage that is very dangerous. When removing the
Anode Cap, make sure to discharge the Anode Cap's
potential voltage.
Do not use pliers to loosen or tighten the Anode Cap
*
terminal, this may cause the spring to be damaged.
REMOVAL
1. Follow the steps as follows to discharge the Anode Cap.
(Refer to Fig. 3-1.)
Connect one end of an Alligator Clip to the metal part of
a flat-blade screwdriver and the other end to ground.
While holding the plastic part of the insulated Screwdriver,
touch the support of the Anode with the tip of the
Screwdriver.
A cracking noise will be heard as the voltage is discharged.
GND on the CRT
3. After one side is removed, pull in the opposite direction to
remove the other.
NOTE
Take care not to damage the Rubber Cap.
INSTALLATION
1. Clean the spot where the cap was located with a small
amount of alcohol. (Refer to Fig. 3-3.)
Location of Anode Cap
Fig. 3-3
NOTE
Confirm that there is no dirt, dust, etc. at the spot where
the cap was located.
2.3.Arrange the wire of the Anode Cap and make sure the
wire is not twisted.
Turn over the Rubber Cap. (Refer to Fig. 3-4.)
Screwdriver
Alligator Clip
GND on the CRT
Flip up the sides of the Rubber Cap in the direction of the
2.
arrow and remove one side of the support.
(Refer to Fig. 3-2.)
Rubber Cap
CRT
Support
Support
CRT
Fig. 3-1
Fig. 3-2
Fig. 3-4
4. Insert one end of the Anode Support into the anode button,
then the other as shown in Fig. 3-5.
Support
CRT
5.6.Confirm that the Support is securely connected.
Put on the Rubber Cap without moving any parts.
Fig. 3-5
B3-1
Page 49
A
A/C
ACC
AE
AFC
AFT
AFT DET
AGC
AMP
ANT
A.PB
APC
ASS'Y
AT
AUTO
A/V
B
BGP
BOT
BPF
BRAKE SOL
BUFF
B/W
C
C
CASE
CAP
CARR
CH
CLK
CLOCK (SY-SE)
COMB
CONV
CPM
CTL
CYL
CYL-M
CYL SENS
D
DATA (SY-CE)
dB
DC
DD Unit
DEMOD
DET
DEV
E
E
EF
EMPH
ENC
ENV
EOT
EQ
EXT
F
F
FBC
FE
FF
FG
FL SW
FM
FSC
FWD
G
GEN
GND
H
H.P.F
KEY TO ABBREVIATIONS
:
Audio/Control
:
Automatic Color Control
:
Audio Erase
:
Automatic Frequency Control
:
Automatic Fine Tuning
:
Automatic Fine Tuning Detect
:
Automatic Gain Control
:
Amplifier
:
Antenna
:
Audio Playback
:
Automatic Phase Control
:
Assembly
:
All Time
:
Automatic
:
Audio/Video
:
Burst Gate Pulse
:
Beginning of Tape
:
Bandpass Filter
:
Brake Solenoid
:
Buffer
:
Black and White
:
Capacitance, Collector
:
Cassette
:
Capstan
:
Carrier
:
Channel
:
Clock
:
Clock (Syscon to Servo)
:
Combination, Comb Filter
:
Converter
:
Capstan Motor
:
Control
:
Cylinder
:
Cylinder-Motor
:
Cylinder-Sensor
:
Data (Syscon to Servo)
:
Decibel
:
Direct Current
:
Direct Drive Motor Unit
:
Demodulator
:
Detector
:
Deviation
:
Emitter
:
Emitter Follower
:
Emphasis
:
Encoder
:
Envelope
:
End of Tape
:
Equalizer
:
External
:
Fuse
:
Feed Back Clamp
:
Full Erase
:
Fast Forward, Flipflop
:
Frequency Generator
:
Front Loading Switch
:
Frequency Modulation
:
Frequency Sub Carrier
:
Forward
:
Generator
:
Ground
:
High Pass Filter
H.SW
Hz
I
IC
IF
IND
INV
K
KIL
L
L
LED
LIMIT AMP
LM, LDM
LP
L.P.F
LUMI.
M
M
MAX
MINI
MIX
MM
MOD
MPX
MS SW
N
NC
NR
O
OSC
OPE
P
PB
PB CTL
PB-C
PB-Y
PCB
P. CON
PD
PG
P-P
R
R
REC
REC-C
REC-Y
REEL BRK
REEL S
REF
REG
REW
REV, RVS
RF
RMC
RY
S
S. CLK
S. COM
S. DATA
SEG
SEL
SENS
SER
SI
SIF
SO
SOL
SP
STB
SW
:
Head Switch
:
Hertz
:
Integrated Circuit
:
Intermediate Frequency
:
Indicator
:
Inverter
:
Killer
:
Left
:
Light Emitting Diode
:
Limiter Amplifier
:
Loading Motor
:
Long Play
:
Low Pass Filter
:
Luminance
:
Motor
:
Maximum
:
Minimum
:
Mixer, mixing
:
Monostable Multivibrator
:
Modulator, Modulation
:
Multiplexer, Multiplex
:
Mecha State Switch
:
Non Connection
:
Noise Reduction
:
Oscillator
:
Operation
:
Playback
:
Playback Control
:
Playback-Chrominance
:
Playback-Luminance
:
Printed Circuit Board
:
Power Control
:
Phase Detector
:
Pulse Generator
:
Peak-to Peak
:
Right
:
Recording
:
Recording-Chrominance
:
Recording-Luminance
:
Reel Brake
:
Reel Sensor
:
Reference
:
Regulated, Regulator
:
Rewind
:
Reverse
:
Radio Frequency
:
Remote Control
:
Relay
:
Serial Clock
:
Sensor Common
:
Serial Data
:
Segment
:
Select, Selector
:
Sensor
:
Search Mode
:
Serial Input
:
Sound Intermediate Frequency
:
Serial Output
:
Solenoid
:
Standard Play
:
Serial Strobe
:
Switch
C1-1
Page 50
S
SYNC
SYNC SEP
T
TR
TRAC
TRICK PB
TP
U
UNREG
V
V
VCO
VIF
VP
V.PB
VR
V.REC
VSF
VSR
VSS
V-SYNC
VT
X
X'TAL
Y
Y/C
KEY TO ABBREVIATIONS
:
Synchronization
:
Sync Separator, Separation
:
Transistor
:
Tracking
:
Trick Playback
:
Test Point
:
Unregulated
:
Volt
:
Voltage Controlled Oscillator
:
Video Intermediate Frequency
:
Vertical Pulse, Voltage Display
:
Video Playback
:
Variable Resistor
:
Video Recording
:
Visual Search Fast Forward
:
Visual Search Rewind
:
Voltage Super Source
:
Vertical-Synchronization
:
Voltage Tuning
:
Crystal
:
Luminance/Chrominance
C1-2
Page 51
SERVICE MODE LIST
This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
To enter SERVICE MODE, unplug AC cord till lost actual clock time. Then press and hold Vol (-) button of main unit and
remocon key simultaneously.
The both pressing of set key and remote control key will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 5 seconds before Power On.
Set KeyRemocon KeyOperations
VOL. (-) MIN
VOL. (-) MIN1
VOL. (-) MIN
VOL. (-) MIN
VOL. (-) MIN4
VOL. (-) MIN
VOL. (-) MIN
0
2
3
5
6
Releasing of V-CHIP PASSWORD.
Initialization of the factory.
NOTE: Do not use this for the normal servicing.
Horizontal position adjustment of OSD.
NOTE: Also can be adjusted by using the Adjustment MENU.
Refer to the "ELECTRICAL ADJUSTMENT" (OSD HORIZONTAL).
Adjust the PG SHIFTER automatically.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjust the PG SHIFTER manually.
Refer to the "ELECTRICAL ADJUSTMENT" (PG SHIFTER).
Adjusting of the Tracking to the center position.
NOTE: Also can be adjusted by pressing the ATR button for more than 2 seconds
during PLAY.
POWER ON total hours and PLAY/REC total hours are displayed on the screen.
Refer to the "PREVENTIVE CHECKS AND SERVICE INTERVALS" (CONFIRMATION
OF USING HOURS).
Can be checked of the INITIAL DATA of MEMORY IC.
Refer to the "NOTE FOR THE REPLACING OF MEMORY IC".
VOL. (-) MIN8
VOL. (-) MIN9
MethodOperations
Press the ATR button on the
remote control for more than
2 seconds during PLAY.
Make the short circuit between
the test point of SERVICE and
the GND.
Writing of EEPROM initial data.
NOTE: Do not use this for the normal servicing.
Display of the Adjustment MENU on the screen.
Refer to the "ELECTRICAL ADJUSTMENT" (On-Screen Display Adjustment).
Adjusting of the Tracking to the center position.
Refer to the "MECHANICAL ADJUSTMENT" (GUIDE ROLLER) and "ELECTRICAL
ADJUSTMENT" (PG SHIFTER).
The EOT/BOT/Reel sensor do not work at this moment.
Refer to the "PREPARATION FOR SERVICING"
C2-1
Page 52
PREVENTIVE CHECKS AND SERVICE INTERVALS
The following standard table depends on environmental conditions and usage. Unless maintenance is properly
carried out, the following service intervals may be quite shortened as harmful effects may be had on other parts.
Also, long term storage or misuse may cause transformation and aging of rubber parts.
Time
Parts Name
Audio Control Head
Full Erase Head
(Recorder only)
Capstan Belt
Pinch Roller
Capstan DD Unit
Loading Motor
Tension Band
Capstan Shaft
Tape Running
Guide Post
Cylinder Unit
: Clean
: Replace
500
hours
1,000
hours
1,500
hours
2,000
hours
3,000
hours
Notes
Clean those parts in
contact with the tape.
Clean the rubber, and parts
which the rubber touches.
Replace when rolling
becomes abnormal.
Clean the Head
CONFIRMATION OF USING HOURS
POWER ON total hours and PLAY/REC total hours can be checked on the screen.
Total hours are displayed in 16 system of notation.
NOTE: The confirmation of using hours will not be possible if clock has been set. To reset clock, either unplug
AC cord and allow at least 5 seconds before Power On.
1.
Set the VOLUME to minimum.
2.
While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously.
3.
After the confirmation of using hours, turn off the power.
INIT 00 83
POWER ON
PLAY/REC
(16 x 16 x 16 x thousands digit value) + (16 x 16 x hundreds digit value) + (16 x tens digit value) + (ones digit value)
0010
0003
Initial setting content of MEMORY IC.
POWER ON total hours.
PLAY/REC total hours.
C3-1
Page 53
PREVENTIVE CHECKS AND SERVICE INTERVALS
CLEANING
NOTE
After cleaning the heads with isopropyl alcohol, do not
run a tape until the heads dry completely. If the heads
are not completely dry and alcohol gets on the tape,
damage may occur.
1. AUDIO CONTROL HEAD
Wrap a piece of chamois around your finger. Dip it in
isopropyl alcohol and clean the audio control head by
wiping it horizontally. Clean the full erase head in the
same manner. (Refer to the figure below.)
2. TAPE RUNNING SYSTEM
When cleaning the tape transport system, use the
gauze moistened with isopropyl alcohol.
3. CYLINDER
Wrap a piece of chamois around your finger. Dip it in
isopropyl alcohol. Hold it to the cylinder head softly.
Turn the cylinder head counterclockwise to clean it (in
the direction of the arrow). (Refer to the figure below.)
NOTE
Do not exert force against the cylinder head. Do not move
the chamois upward or downward on the head.
Use the chamois one by one.
Audio Control Head
Cylinder Head
C3-2
Page 54
NOTE FOR THE REPLACING OF MEMORY IC
If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to
ensure correct data settings while making reference to TABLE 1.
NOTE: Initial Data setting will not be possible if clock has been set. To reset clock, either unplug AC cord and allow
at least 5 seconds before Power On.
ADDRESS DATA83ADDRESS DATA ADDRESS DATA ADDRESS DATA
00
01
02
03
04
05140C1913531AA921002801
06
08
1B
C0
63
34
0789
08
09
0A
0B
0D
3B
75
10
97
00
0E
0F
108C
11
12
1400
00
00
68
5C
15
16
17
18
19
1B
00
00
05
05
00
0F
ADDRESS
1C
1D
1E
1F
20
22
DATA ADDRESS DATA
04
39
8D
00
00
00
23
24
25
26
27
29
Table 1
Enter DATA SET mode by setting VOLUME to minimum.
1.
While holding down VOLUME button on front cabinet, press key 6 on remote control simultaneously.
2.
ADDRESS and DATA should appear as FIG 1.
ADDRESSDATA
INIT 00 83
POWER ON
PLAY/REC
3.
ADDRESS is now selected and should "blink". Using the SET + or - keys on the remote, step through the ADDRESS until
required ADDRESS to be changed is reached.
4.
Press ENTER to select DATA. When DATA is selected, it will "blink".
5.
Again, step through the DATA using SET + or - until required DATA value has been selected.
6.
Pressing ENTER will take you back to ADDRESS for further selection if necessary.
7.
Repeat steps 3 to 6 until all data has been checked.
8.
When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
The unit will now have the correct DATA for the new MEMORY IC.
Reel Disk Height Adjustment
JG100APlayback Torque, Back Tension Torque During Playback
Used to connect the test point of SERVICE and GROUNDJG154
PREPARATION FOR SERVICING
How to use the Servicing Fixture
1.
Unplug the connector CP757 and CP353, then remove the TV/VCR Block from the set.
2.
Remove the Operation PCB from the set, then connect it with the Syscon PCB.
If necessary, connect CP353. (Front A/V Jack Input Terminal)
3.
Short circuit between TP1001 and Ground with the cable JG154.
(Refer to MAJOR COMPONENTS LOCATION GUIDE)
4.
The EOT, BOT and Reel Sensor do not work at this moment.
At that time, the STOP/EJECT button is available to insert and eject the Cassette Tape.
C5-1
Page 56
MECHANICAL ADJUSTMENTS
1. CONFIRMATION AND ADJUSTMENT
Read the following NOTES before starting work.
••Place an object which weighs between 450g~500g on
the Cassette Tape to keep it steady when you want to
make the tape run without the Cassette Holder. (Do not
place an object which weighs over 500g.)
When you activate the deck without the Cassette
Holder, short circuit between TP1001 and GND. (Refer
to ELECTRICAL ADJUSTMENT PARTS LOCATION
GUIDE) In this condition the BOT/EOT/Reel Sensor will
not function.
CONFIRMATION AND ADJUSTMENT OF REEL
1-1:
DISK HEIGHT
1.
Turn on the power and set to the STOP mode.
2.
Set the master plane (JG022) and reel disk height
adjustment jig (JG024A) on the mechanism framework,
taking care not to scratch the drum, as shown in Fig. 1-1-A.
3.
Confirm that "A" of the reel disk is lower than "B" of the
reel disk height adjustment jig (JG024A) , and is higher
than "C". If it is not enough height, adjust to 10(+0.2, -0)
mm with the height adjustment washer.
4.
Adjust the other reel in the same way.
Master Plane (JG022)
1-2: CONFIRMATION AND ADJUSTMENT OF TENSION
POST POSITION
1.
Set to the PLAY mode.
2.
Adjust the Tension Adjust until the edge of the Tension
Arm is positioning within 0.5mm range from the
standard line center of Main Chassis.
After this adjustment, confirm that the cut position is
located in "A" area as shown in Fig. 1-2-B. If it is
located in "B" area, adjust again.
3.
While turning the S Reel clockwise, confirm that the
edge of the Tension Arm is located in the position
described above.
Standard line of Main Chassis
Tension Arm
0.5mm (Adjusting range)
Standard line center of Main Chassis
Tension Adjust
Fig. 1-2-A
Master Plane (JG022)
10(+0.2, -0)mm
Reel Disk Height Adjustment Jig
(JG024A)
Reel Disk
Height Adjustment
Washer
2.6x4.7xT0.13
2.6X4.7xT0.25
Reel Disk Height
Adjustment Jig
(JG024A)
(B)
(A)
Fig. 1-1-A
(C)
Fig. 1-1-B
(A)
Cut Position
(B)
Tension Adjust
Fig. 1-2-B
1-3: CONFIRMATION OF PLAYBACK TORQUE AND
BACK TENSION TORQUE DURING PLAYBACK
Load a video tape (T-120) recorded in standard speed
1.
mode. Set the unit to the PLAY mode.
Install the tentelometer as shown in Fig. 1-3. Confirm that
2.
the meter indicates 20 ± 2gf in the beginning of playback.
• USING A CASSETTE TYPE TORQUE TAPE (JG100A)
1.
After confirmation and adjustment of Tension Post
position (Refer to item 1-2), load the cassette type
torque tape (JG100A) and set to the PLAY mode.
2.
Confirm that the right meter of the torque tape indicates
60~110gf•cm during playback in SP mode.
3.
Confirm that the left meter of the torque tape indicates
25~40gf•cm during playback in SP mode.
Tentelometer
Video Tape
D1-1
P1 Post
Guide Roller
Fig. 1-3
Page 57
MECHANICAL ADJUSTMENTS
1-4: CONFIRMATION OF VSR TORQUE
Operate within 4~5 seconds after the reel disk begins to
1.
turn.
Install the Torque Gauge (JG002F) and Adapter (JG002B)
2.
on the S Reel. Set to the Rewind mode. (Refer to Fig.1-4)
Then, confirm that it indicates 120~180gf•cm.
3.
NOTE
Install the Torque Gauge on the reel disk firmly. Press the
REW button to turn the reel disk.
1-5: CONFIRMATION OF REEL BRAKE TORQUE
(S Reel Brake) (Refer to Fig. 1-4)
Set to the STOP mode.
1.
Move the Idler Ass'y from the S Reel.
2.
Install the Torque Gauge (JG002F) and Adapter
3.
(JG002B) on the S Reel. Turn the Torque Gauge
(JG002F) clockwise.
Then, confirm that it indicates 60~100gf•cm.
4.
(T Reel Brake) (Refer to Fig. 1-4)
Set to the STOP mode.
1.
Move the Idler Ass'y from the T Reel.
2.
Install the Torque Gauge (JG002E) and Adapter
3.
(JG002B) on the T reel. Turn the Torque Gauge
(JG002E) counterclockwise.
Then, confirm that it indicates 45~70gf•cm.
4.
Torque Gauge/Adapter
(JG002F/JG002B)
2. CONFIRMATION AND ADJUSTMENT
OF TAPE RUNNING MECHANISM
Tape Running Mechanism is adjusted precisely at the
factory. Adjustment is not necessary as usual. When you
replace the parts of the tape running mechanism because
of long term usage or failure, the confirmation and
adjustment are necessary.
2-1: GUIDE ROLLER
Playback the VHS Alignment Tape (JG001 or JG001B).
1.
(Refer to SERVICING FIXTURE AND TOOLS)
Connect CH-1 of the oscilloscope to TP4001(Envelope)
2.
and CH-2 to TP1002(SW Pulse).
Press and hold the Tracking-Auto button on the remote
3.
control more than 2 seconds to set tracking to center.
Trigger with SW Pulse and observe the envelope. (Refer
4.
to Fig. 2-1-A)
When observing the envelope, adjust the Adjusting
5.
Driver (JG005) slightly until the envelope will be flat.
Even if you press the Tracking Button, adjust so that
flatness is not moved so much.
Adjust so that the A : B ratio is better than 3 : 2 as shown
6.
in Fig. 2-1-B, even if you press the Tracking Button to
move the envelope (The envelope waveform will begin to
decrease when you press the Tracking Button).
Adjust the PG shifter during playback.
7.
(Refer to the ELECTRICAL ADJUSTMENTS)
NOTE
After adjustment, confirm and adjust A/C head.
(Refer to item 2-2)
Torque Gauge/Adapter
(JG002E/JG002B)
S Reel
T Reel
Fig. 1-4
NOTE
If the torque is out of the range, replace the following
parts.
Check item
1-4
1-5
Replacement Part
Idler Ass'y/Clutch Ass'y
T Brake Spring/Tension Spring
Envelope
CH-3
Audio
Max
CH-1
Envelope
(TP4001)
CH-1
CH-2
Track
Track
CH-2
SW Pulse (TP1002)
(1)
(2)
EntranceExit
A
B
Fig. 2-1-A
Max
D1-2
A : B = 3 : 2
Fig. 2-1-B
Page 58
MECHANICAL ADJUSTMENTS
CONFIRMATION AND ADJUSTMENT OF AUDIO/
CONTROL HEAD
When the Tape Running Mechanism does not work well,
adjust the following items.
1.
Playback the VHS Alignment Tape (JG001 or JG001B).
(Refer to SERVICING FIXTURE AND TOOLS)
2.
Confirm that the reflected picture of stamp mark is
appeared on the tape prior to P4 Post as shown in Fig.2-2-A.
a)
When the reflected picture is distorted, turn the screw
1 clockwise until the distortion is disappeared.
b)
When the reflected picture is not distorted, turn the
screw 1 counterclockwise until little distortion is
appeared, then adjust the a).
3.
Turn the screw 2 to set the audio level to maximum.
4.
Confirm that the bottom of the Audio/ Control Head and
the bottom of the tape is shown in Fig. 2-2-C.
c)
When the height is not correct, turn the screw 3 to
adjust the height. Then, adjust the 1~3 again.
Audio/Control Head
Reflected picture of
Stamp Mark
P4 Post
Audio/Control Head
3
Stamp Mark
1
Fig. 2-2-A
2-3:2-2:
TAPE RUNNING ADJUSTMENT
(X VALUE ADJUSTMENT)
Confirm and adjust the height of the Reel Disk.
1.
(Refer to item 1-1)
Confirm and adjust the position of the Tension Post.
2.
(Refer to item 1-2)
Adjust the Guide Roller. (Refer to item 2-1)
3.
Confirm and adjust the Audio/Control Head.
4.
(Refer to item 2-2)
Connect CH-1 of the oscilloscope to TP4001, CH-2 to
5.
TP1002 and CH-3 to HOTsideofAudioOutJack.
Playback the VHS Alignment Tape (JG001S or JG001T).
6.
(Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote
7.
control more than 2 seconds to set tracking to center.
Set the X Value adjustment driver (JG153) to the 4 of
8.
Fig. 2-2-B. Adjust X value so that the envelope waveform
output becomes maximum. Check if the relation between
Audio and Envelope waveform becomes (1) or (2) of Fig.
2-1-A.
2-4: CONFIRM HI-FI AUDIO (Hi-Fi model only)
Connect CH-1 of the oscilloscope to TP4001, CH-2 to
1.
TP1002 and CH-3 to the Hi-Fi Audio Out Jack.
Playback the VHS Alignment Tape (JG001P or JG001Q).
2.
(Refer to SERVICING FIXTURE AND TOOLS)
Press and hold the Tracking-Auto button on the remote
3.
control more than 2 seconds to set tracking to center.
Press the Tracking Up button and count number of steps
4.
which the audio output is changed from Hi-Fi (10KHz) to
MONO (6KHz).
Press the Tracking Down button and count number of
5.
steps which the audio output is changed from Hi-Fi
(10KHz) to MONO (6KHz).
Confirm that the difference between these counted steps
6.
number in the above items are within 2 steps. If the
difference are more than 3 steps, do Tape Running
Adjustment again. (Refer to item 2-3)
2
Audio/Control Head
Tape
4
Fig. 2-2-B
0.25±0.05mm
Fig. 2-2-C
D1-3
Page 59
MECHANICAL ADJUSTMENTS
3. MECHANISM ADJUSTMENT PARTS LOCATION GUIDE
4
3
2
5
6
7
1
10
1. Tension Adjust
2. Tension Arm
3. Guide Roller
4. P1 Post
5. Audio/Control Head
6.
X value adjustment driver hole
7.
P4 Post
8.
T Brake Spring
9.
T Reel
10.
S Reel
9
8
D1-4
Page 60
ELECTRICAL ADJUSTMENTS
1. BEFORE MAKING ELECTRICAL
ADJUSTMENTS
Read and perform these adjustments when repairing the
circuits or replacing electrical parts or PCB assemblies.
CAUTION
•
Use an isolation transformer when performing any
service on this chassis.
•
Before removing the anode cap, discharge electricity
because it contains high voltage.
•
When removing a PCB or related component, after
unfastening or changing a wire, be sure to put the wire
back in its original position.
Inferior silicon grease can damage IC's and transistors.
•
When replacing IC's and transistors, use only specified
silicon grease (YG6260M).
Remove all old silicon before applying new silicon.
On-Screen Display Adjustment
Unplug the AC plug for more than 5 seconds to set the
1.
clock to the non-setting state. Then, set the volume
level to minimum.
Press the VOL. DOWN button on the set and the
2.
Channel button (9) on the remote control simultaneously
to appear the adjustment mode on the screen as shown
in Fig. 1-1.
2. BASIC ADJUSTMENTS
(VCR SECTION)
2-1: PG SHIFTER
1.
Connect CH-1 on the oscilloscope to TP1002 and CH-2
to pin 4 of CP1003.
2.
Playback the alignment tape. (JG001A)
3.
Press and hold the Tracking-Auto button on the remote
control more than 2 seconds to set tracking to center.
4.
Press the VOL. DOWN button on the set and the
channel button (3) on the remote control simultaneously
until the indicator REC disappears. If the indicator REC
disappears, adjustment is completed.
(If the above adjustments doesn't work well:)
5.
Press the VOL. DOWN button on the set and the
channel button (3) on the remote control simultaneously
until the indicator REC disappears.
6.
When the REC indicator is blinking, press both VOL.
DOWN button on the set and the channel button (4) on
the remote control simultaneously and adjust the
Tracking +/- button until the arising to the down of Head
Switching Pulse becomes 6.5 ± 0.5H.
(Refer to Fig. 2-1-A, B)
7.
Press the Tracking Auto button.
TV
00 OSD 15
Use the Channel UP/DOWN button or Channel button
3.
(0-9) on the remote control to select the options shown
in Fig. 1-2.
Press the MENU button on the remote control to end
4.
the adjustments.
FUNCTION
NO.
00
01
02
03
04
05
06
07
08
09
10
11
12
OSD H
CUT OFF
RF AGC
VIF VCO
H VCO
H PHASE
V SIZE
V SHIFT
R DRIVE
B DRIVE
R BIAS
G BIAS
B BIAS
FUNCTION
NO.
BRIGHTNESS
13
CONTRAST
14
COLOR
15
TINT
16
SHARPNESS
17
FM LEVEL
18
LEVEL
19
SEPARATION 1
20
SEPARATION 2
21
TEST MONO
22
TEST STEREO
23
X-RAY TEST
24
Fig. 1-1
Fig. 1-2
CH-2
6.5H
CH-1
Fig. 2-1-A
CH-2
CH-1
6.5H
Fig. 2-1-B
2-2: VCO FREERUN
1.
Place the set with Aging Test for more than 10 minutes.
2.
Receive the VHF HIGH.
3.
Disconnect the Antenna while receiving the VHF HIGH
and set to the Noise screen.
4.
Once turn off the Power and turn on the Power again.
5.
Approxi. 3 seconds later, input the Antenna again.
6.
Connect the digital voltmeter between the pin 5 ofCP351 and the pin 1 (GND) of CP351.
7.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (03) on the remote control to
select "VIF VCO".
8.
Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.5 ± 0.5V.
D2-1
Page 61
ELECTRICAL ADJUSTMENTS
2-3: RF AGC
1.
Receive a 70dB monoscope pattern.
2.
Connect the digital voltmeter between the pin 5 ofCP351 and the pin 1 (GND) of CP351.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (02) on the remote control to
select "RF AGC".
4.
Press the VOL. UP/DOWN button on the remote control
until the digital voltmeter is 2.4 ± 0.05V.
(TV SECTION)
2-4: CONSTANT VOLTAGE
1.
Connect the digital voltmeter to the FUSE HOLDER ofFH503.
2.
Set condition is AV MODE without signal.
3.
Adjust the VR502 until the digital voltmeter is 135 ± 0.5V.
2-5: CUT OFF
1.
Adjust the unit to the following settings.
R BIAS=64, G BIAS=64, B BIAS=64,
BRIGHTNESS=128, CONTRAST=64
2.
Place the set with Aging Test for more than 15 minutes.
3.
Set condition is AV MODE without signal.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (01) on the remote control to
select "CUT OFF".
5.
Adjust the Screen Volume until a dim raster is obtained.
2-6: FOCUS
1.
Receive the monoscope pattern.
2.
Turn the Focus Volume fully counterclockwise once.
3.
Adjust the Focus Volume until picture is distinct.
2-7: WHITE BALANCE
NOTE: Adjust after performing CUT OFF adjustment.
1.
Place the set with Aging Test for more than 15 minutes.
2.
Receive the color bar pattern.
3.
Using the remote control, set the brightness and contrast
to normal position.
4.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (10) on the remote control to
select "R.BIAS".
5.
Using the VOL. UP/DOWN button on the remote control,
adjust the R.BIAS.
6.
Press the CH. UP/DOWN button on the remote control to
select the "R.DRIVE", "B.DRIVE", "G.BIAS" or "B.BIAS".
7.
Using the VOL. UP/DOWN button on the remote control,
adjust the R.DRIVE, B.DRIVE, G.BIAS or B.BIAS.
8.
Perform the above adjustments 6 and 7 until the white
color is looked like a white.
2-8: HORIZONTAL PHASE
1.
Receive the center cross signal from the Pattern
Generator.
2.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (05) on the remote control to
select "H PHASE".
3.
Press the VOL. UP/DOWN button on the remote
control until the vertical line becomes fit to the notch of
the shadow mask.
2-9: VERTICAL SHIFT
1.
Receive the center cross signal from the Pattern
Generator.
2.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (07) on the remote control to
select "V SHIFT".
3.
Press the VOL. UP/DOWN button on the remote
control until the horizontal line becomes fit to the notch
of the shadow mask.
2-10: VERTICAL SIZE
1.
Receive the cross hatch signal from the Pattern
Generator.
2.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (06) on the remote control to
select "V SIZE".
3.
Press the VOL. UP/DOWN button on the remote
control until the rectangle on the center of the screen
becomes square.
4.
Receive a broadcast and check if the picture is normal.
2-11: SUB BRIGHTNESS
1.
Receive the black pattern*. (RF Input)
2.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (13) on the remote control to
select "BRIGHTNESS".
3.
Press the VOL. UP/DOWN button on the remote
control until the screen begin to shine.
4.
Receive the black pattern*. (Audio Video Input)
5.
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~3.
*The Black Pattern means the whole black raster signal.
Select the "RASTER" of the pattern generator, set to
the OFF position for each R, G and B.
2-12: SUB CONTRAST
1.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (14) on the remote control to
select "CONTRAST".
2.
Press the VOL. UP/DOWN button on the remote
control until the contrast step No. becomes "100"
3.
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 1~2.
D2-2
Page 62
ELECTRICAL ADJUSTMENTS
2-13: SUB TINT
1.
Receive the color bar pattern. (RF Input)
2.
Connect the synchro scope to TP803.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (16) on the remote control to
select "TINT".
4.
Press the VOL. UP/DOWN button on the remote control
until the waveform becomes as shown in Fig. 2-2.
5.
Receive the color bar pattern. (Audio Video Input)
6.
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~4.
Fig. 2-2
2-14: SUB COLOR
1.
Receive the color bar pattern. (RF Input)
2.
Connect the synchro scope to TP801.
3.
Activate the adjustment mode display of Fig. 1-1 and
press the channel button (15) on the remote control to
select "COLOR".
4.
Press the VOL. UP/DOWN button on the remote control
until the red color level is adjusted to 110% of the white
level. (Refer to Fig. 2-3)
5.
Receive the color bar pattern. (Audio Video Input)
6.
Press the INPUT SELECT button on the remote control
to set to the AV mode. Then perform the above
adjustments 2~4.
2-15: OSD HORIZONTAL
1.2.Activate the adjustment mode display of Fig. 1-1.
Press the VOL. UP/DOWN button on the remote
control until the difference of A and B becomes
minimum. (Refer to Fig. 2-4)
TV
00 OSD 15
A
B
Fig. 2-4
White 0%
Red Level
White 100%
0%
110%
Fig. 2-3
D2-3
Page 63
ELECTRICAL ADJUSTMENTS
3. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE
TP1001
CP1003
TP1002
TP4001
FB401
FOCUS VOLUME
SCREEN VOLUME
FH503
VR502
TU001
CP351
SYSCON
TP801
TP803
J801
CRT
D2-4
Page 64
ELECTRICAL ADJUSTMENTS
4.PURITY AND CONVERGENCE
ADJUSTMENTS
NOTE
1.
Turn the unit on and let it warm up for at least 30
minutes before performing the following adjustments.
2.
Place the CRT surface facing east or west to reduce the
terrestrial magnetism.
3.
Turn ON the unit and demagnetize with a Degauss Coil.
4-1: STATIC CONVERGENCE (ROUGH ADJUSTMENT)
1.
Tighten the screw for the magnet. Refer to the adjusted
CRT for the position. (Refer to Fig. 4-1)
If the deflection yoke and magnet are in one body,
untighten the screw for the body.
2.
Receive the green raster pattern from the color bar
generator.
3.
Slide the deflection yoke until it touches the funnel side
of the CRT.
4.
Adjust center of screen to green, with red and blue on
the sides, using the pair of purity magnets.
5.
Switch the color bar generator from the green raster
pattern to the crosshatch pattern.
6.
Combine red and blue of the 3 color crosshatch pattern
on the center of the screen by adjusting the pair of 4
pole magnets.
7.
Combine red/blue (magenta) and green by adjusting the
pair of 6 pole magnets.
8.
Adjust the crosshatch pattern to change to white by
repeating steps 6 and 7.
4-2: PURITY
NOTE
Adjust after performing adjustments in section 4-1.
1.
Receive the green raster pattern from color bar
generator.
2.
Adjust the pair of purity magnets to center the color on
the screen.
Adjust the pair of purity magnets so the color at the
ends are equally wide.
3.
Move the deflection yoke backward (to neck side)
slowly, and stop it at the position when the whole screen
is green.
4.
Confirm red and blue colors.
5.
Adjust the slant of the deflection yoke while watching
the screen, then tighten the fixing screw.