Sony KV-27FS100L Service Manual ▷ View online
— 14 —
KV-27FS100L/29FS100L
2-4. SCREEN (G2)
1. Input a dot pattern.
2. Set the PICTURE and BRIGHTNESS controls at minimum and
2. Set the PICTURE and BRIGHTNESS controls at minimum and
COLOR control at normal.
3. Adjust SBRT, GCUT, BCUT in service mode with an oscilloscope as
shown below so that voltages on the red, green, and blue cathodes
are 160 ± 2VDC.
Pedestal
160 – 2VDC
Ground
±
4. Observe the screen and adjust SCREEN (G2) VR in FBT to obtain
the faintly visible background of dot signal.
2-5. METHOD OF SETTING THE SERVICE
ADJUSTMENT MODE
SERVICE MODE PROCEDURE
SERVICE MODE PROCEDURE
1. Standby mode (power off).
2. Press Display
2. Press Display
Channel 5
Sound Volume +
Power
on the Remote Commander (press each button within a second).
SERVICE ADJUSTMENT MODE ON
1. The CRT displays the time being adjusted.
Mode
Category
Display
Item
Display
Item
Signal
Type
Type
ntsc
service
defl
vchp
00000000
00000000
hsiz
16
2. Press 1 or 4 on the Remote Commander to select the time.
3. Press 3 or 6 on the Remote Commander to change the data.
4. Press MUTING then ENTER to save into the memory.
3. Press 3 or 6 on the Remote Commander to change the data.
4. Press MUTING then ENTER to save into the memory.
SERVICE ADJUSTMENT MODE MEMORY
Turn the set off then on to exit Service Adjustment Mode.
service defl hsiz
16
ntsc
vchp 00000000 00000000
Category
Display
Item
Mode
Item
Data
Data
Signal
Type
Type
write
ENTER
Green
Red
MUTING
2-6. WHITE BALANCE ADJUSTMENTS
1. Input an entire white signal with burst.
2. Set to Service Adjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
4. Adjust with SBRT if necessary.
5. Select GCUT and BCUT with 1 and 4 .
6. Adjust with 3 and 6 for the best white balance.
7. Set the PICTURE and BRIGHTNESS to maximum.
8. Select GDRV and BDRV with 1 and 4.
9. Adjust with 3 and 6 for the best white balance.
10. To write into memory, press MUTING then ENTER .
2. Set to Service Adjustment Mode.
3. Set the PICTURE and BRIGHTNESS to minimum.
4. Adjust with SBRT if necessary.
5. Select GCUT and BCUT with 1 and 4 .
6. Adjust with 3 and 6 for the best white balance.
7. Set the PICTURE and BRIGHTNESS to maximum.
8. Select GDRV and BDRV with 1 and 4.
9. Adjust with 3 and 6 for the best white balance.
10. To write into memory, press MUTING then ENTER .
— 15 —
KV-27FS100L/29FS100L
HOLD-DOWN READJUSTMENT
If the setting indicated in Step 2 of Hold-Down Operation Confi rmation
cannot be met, readjustment should be performed by altering the
resistance value of R564 component marked with
cannot be met, readjustment should be performed by altering the
resistance value of R564 component marked with
X.
+
IABL
ABL
T585
FBT
range
-
amPmeter
3.0 mA DC
A
3-2. B+ VOLTAGE CONFIRMATION AND
ADJUSTMENT
ADJUSTMENT
Note: The following adjustments should always be performed when
replacing the following components, which are marked with
replacing the following components, which are marked with
Y on the
schematic diagram on the A Board:
A BOARD:
Y IC604, PH602
1. Using a Variac, apply AC input voltage: 130 + 2.0 / - 0.0 VAC.
2. Input a DOT pattern at Q.C.
3. Set the PICTURE and the BRIGHTNESS controls to minimum.
4. Confi rm the voltage of A Board between TP-23 & Ground is <136.6
2. Input a DOT pattern at Q.C.
3. Set the PICTURE and the BRIGHTNESS controls to minimum.
4. Confi rm the voltage of A Board between TP-23 & Ground is <136.6
VDC.
5. If step 4 is not satisfi ed, replace the components listed above, then
repeat Steps 1 – 3.
SECTION 3: SAFETY RELATED ADJUSTMENTS
3-1.
X R564 CONFIRMATION METHOD
(HV HOLD-DOWN CONFIRMATION) AND
READJUSTMENTS
READJUSTMENTS
The following adjustments should always be performed when replacing
the following components which are marked with
the following components which are marked with
Y on the schematic
diagram:
Part Replaced ( )
Adjustment ( )
DY, T585, CRT, IC001, IC561,
IC600, IC604, C506,C507,C508,
C510, C511, C513, C514, L588,
D565, D566, D567,PH602,R564,
R585, R588,R628, R851,T510,
T511....................A Board
IC600, IC604, C506,C507,C508,
C510, C511, C513, C514, L588,
D565, D566, D567,PH602,R564,
R585, R588,R628, R851,T510,
T511....................A Board
HV HOLD-DOWN
R564
R564
PREPARATION BEFORE CONFIRMATION
1. Using a Variac, apply AC input voltage: 120 ±2 VAC.
2. Turn the POWER switch ON.
3. Input a white signal and set the PICTURE and BRIGHTNESS
2. Turn the POWER switch ON.
3. Input a white signal and set the PICTURE and BRIGHTNESS
controls to maximum.
4. Confi rm that the voltage between C566 (+) or TP30 and ground is
more than 105 VDC.
HOLD-DOWN OPERATION CONFIRMATION
1. Connect the current meter between Pin 11 of the FBT (T585) and the
PWB land where Pin 11 would normally attach (See Figure 1 on the
next page).
next page).
2. Input a dot signal and set PICTURE and BRIGHTNESS to minimum:
IABL = 100 ± 100µA.
3. Confi rm the voltage of A Board TP-23 is 138.0 ± 0.3VDC.
4. Connect the digital voltmeter and the DC power supply via Diode
4. Connect the digital voltmeter and the DC power supply via Diode
1SS119 to C566 (+) and ground (See Figure 1 on next page).
5. Increase the DC power voltage gradually until the picture blanks out.
6. Turn DC power source off immediately.
7. Read the digital voltmeter indication (standard < 117VDC).
8. Input a white signal and set PICTURE and BRIGHTNESS to
6. Turn DC power source off immediately.
7. Read the digital voltmeter indication (standard < 117VDC).
8. Input a white signal and set PICTURE and BRIGHTNESS to
maximum: IABL = 1650 ± 100µA.
9. Repeat steps 4 to 7.
Y
— 16 —
KV-27FS100L/29FS100L
Q590
T505
S006
S002
S003
S004
D612
D613
RY601
D633
C676
D632
PH602
D607
C643
D610
D609
D618
D617
D602
R505
C624
C505
C506
D598
C582
R603
S005
Q601
Q600
IC602
L588
C523
Q522
CN401
IC565
IC400
Q650
IC402
IC545
IC561
S001
D005
VDR600
C601
D410
X301
R634
RY501
RY600
L508
D559
HS603
L513
L511
HS522
C525
L525
D526
C513
D006
L516
C514
D545
D566
D525
L008
L582
C526
C511
Q008
IC002
IC404
Q573
Q006
IC603
Q004
Q005
IC005
C512
Q608
D500
HS615
D615
C618
CN515
IC401
R324
R042
R044
R093
R309
R614
R680
R507
R573
R313
R352
R351
R516
R055
R027
R523
R431
R036
R037
R498
R494
R200
R487
R461
R45
5
R45
8
R485
R106
R041
R040
R416
R227
R203
R574
R528
R529
R537
R557
R549
R625
R670
R660
R696
R078
R079
R091
R092
R090
R605
R606
R607
R533
R534
R400
R086
R080
R085
C009
C001
C047
C330
C328
C326
C325
C337
C096
C094
C015
C306
C307
C308
C518
C628
C627
C637
C548
C529
C537
C538
C556
C461
R043
Q305
Q002
Q404
Q306
Q402
Q400
Q401
Q403
Q604
C202
JR1
JR2
C090
C530
C540
C454
C052
C053
R526
R440
R441
R071
R630
R074
R073
R075
R062
R323
R593
R506
R570
R569
R568
R547
R502
R589
R411
R408
R211
R212
R640
R659
R690
R594
R583
R546
R618
C022
C623
C091
C100
C095
C097
C552
C509
C499
C453
C498
C460
C415
C420
C422
C561
C212
C206
C207
C424
C051
C661
C660
C049
C067
C066
C635
C634
C647
C612
C451
C571
C440
C441
D052
D050
D201
D232
D232
D235
D204
D205
D568
D630
D569
D528
D567
R034
R030
R077
R076
R209
R540
R541
R033
R054
R208
R566
D562
D629
R532
R511
CN002
C606
C605
C615
R612
C648
C640
C610
FB604
FB602
FB616
C595
C545
C547
C600
C680
C681
C630
C677
R504
C544
C562
D220
L009
C528
C527
C616
C650
R581
Q501
C504
C502
D601
L515
R510
R588
R515
L609
D304
C008
L006
D605
HS605
C621
C629
CN501
C041
R307
R202
R229
R222
T602
T605
T601
D624
D611
D631
Q505
Q506
J201
R393
C458
C457
IC001
C069
R601
R512
R514
C690
CN301
HS601
HS600
FB615
FB618
R901
R548
R902
D045
D044
CN201
R572
JR304
CN200
C625
IC608
IC633
HS633
R372
C370
C372
T511
THP501
R370
PS401
R371
L371
L370
JR12
R375
R374
L004
JR305
JR401
JR505
FL001
L005
D414
C609
C651
C450
C006
R503
R591
C590
R609
C597
R851
C631
T585
C302
R094
R095
C603
R699
IC600
C614
R437
R571
JR306
R598
Q521
R575
C510
D506
C313
CN302
C305
R551
R508
R380
R381
JR301
C360
R361
R233
J206
J202
R250
L360
JR43
R362
R501
R438
D438
R36
3
R364
E
B
1
2
4
3
B
E
E
B
1
9
10
6
4
1
3
HDY-
HDY-
HDY+
HDY+
VDY-
VDY+
H-OUT
N/C
200V
GND
HEATER
-13V
GND
+13V
N/C
ABL
GND
GND
HDT
GND
I
O
V.OUT
R+
R-
L-
L+
5V LINE
MICRO + Y/C + COMB
1
6
B
E
-
+
D G C
H-OUT
H-OUT
LUMA-V1
GND
I
O
LUMA-V3
S-VIDEO
GND
TV
1
2
6
7
7
H.PROT
1
6
GLUE
MARK
MARK
GLUE
MARK
MARK
135V
BA-6 A MASS PRODUCTION
1-684-449-11
TP21
TP28
TP29
TP27
TP19
TP20
TP17
TP16
TP33
TP30
TP13
TP14
TP15
4
2
3
1
TP08
TP32
TP34
TP24
TP25
E
B
TP23
TP31
TP22
C
E
B
CL OCK
DAT A
6
1
FBT
E
B
1
6
R390
1
6
T U 1 0 1
9
1
PROCESSOR
AUDIO
1
4
G
S
G
S
2
1
4
3
31
27
25
21
15
11
6
1
2.0A (FS)
2.7A (FV)
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Figure 1
TP23
X
R564
C566
+
-
DIGITAL
MULTIMETER
+
-
POWER
SUPPLY
1SS119
AMMETER
3mA dc range
+
-
A
— 17 —
KV-27FS100L/29FS100L
4-1. SETTING THE SERVICE ADJUSTMENT
MODE
1. Standby mode (Power off).
2. Press the following buttons on the remote commander within a
2. Press the following buttons on the remote commander within a
second of each other:
Display
Channel 5
Sound Volumne +
Power
SERVICE ADJUSTMENT MODE ON
1. The CRT displays the item being adjusted.
DEF NTSC 1 NVM OK
M65582AMF-101FPZ0
Signal
Type
Display
Item #
Category
Item
Data
41
Data
41
Display
Item
H SIZE
2. Press 1 or 4 on the Remote Commander to select the item.
3. Press 3 or 6 on the Remote Commander to change the data.
4. Press MUTING then ENTER to write into memory.
3. Press 3 or 6 on the Remote Commander to change the data.
4. Press MUTING then ENTER to write into memory.
SERVICE ADJUSTMENT MODE MEMORY
service defl hsiz
16
ntsc
vchp 00000000 00000000
Category
Display
Item
Mode
Item
Data
Data
Signal
Type
Type
write
1. Press 8 then ENTER on the Remote Commander to initialize.
service defl hsiz
16
ntsc
vchp 00000000 00000000
Category
Display
Item
Mode
Item
Data
Data
Signal
Type
Type
write
Carry out Step 1 when adjusting
IDs 0-7 and when replacing and
adjusting IC002
IDs 0-7 and when replacing and
adjusting IC002
2. Press MUTING then ENTER to write into memory.
3. Turn set off then on to exit Service Adjustment Mode.
3. Turn set off then on to exit Service Adjustment Mode.
SECTION 4: CIRCUIT ADJUSTMENTS
ELECTRICAL ADJUSTMENTS BY REMOTE COMMANDER
Use the Remote Commander
(RM-Y180) to perform the circuit adjustments in this section.
Test Equipment Required: 1. Pattern generator 2. Frequency counter 3. Digital multimeter 4. Audio oscillator
4-2. MEMORY WRITE CONFIRMATION
METHOD
1. After adjustment, pull out the plug from the AC outlet, then replace
the plug in the AC outlet again.
2. Turn the power switch ON and set to Service Mode.
3. Call the adjusted items again to confirm they were adjusted.
3. Call the adjusted items again to confirm they were adjusted.
4-3. REMOTE ADJUSTMENT BUTTONS AND
INDICATORS
VOLUME (+)
(Service Mode)
6
Item
(Data down)
ENTER
(Enter into
memory)
0
(Remove from
memory)
3
Item
(Data up)
RM-Y180
5
(Device item
down)
MUTING
(Enter into
memory)
1
Disp. (Item up)
2
(Device Item Up)
4
Disp. (Item down)
8
(Initialize)
DISPLAY
(Service Mode)
POWER
(Service Mode)
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