Sony XVM-R70 Service Manual ▷ View online
21
21
XVM-R70
6-2. BLOCK DIAGRAM — VIDEO SECTION —
46
2
48
47
7
6
53
63
62
16
1
9
8
45
AGC
AGC
VCO
Q350
Q351
12V
RV350
L-CH
VCO
VREF
VREF
L
OUT
R
OUT
VC0
BUF
BUF
PRE
EMPHASIS
PRE
EMPHASIS
6
43
11
LEVEL
DETECT
22
2
20
1
19
3
16
17
18
49
48
14
16
15
17
16
18
17
15
63 64
47
39
54
34
35
46
57
52
53
VCO
I/N
VXO
IC500
RGB DECODER
IC400 (1/2)
SYSTEM CONTOL
VD IN
HSYNCLOCK
SYNC
SEP
HH
KILL
V
COUNT
OSD
SW
OUTPUT
CONTROL
VIDEO RAM
CG
ROM
OSC
BRIGHT/
CONTRAST
TRAP
SYNC
SEP
Q501,502
H PULSE
SHAPE
Q504,505
VD PULSE
SHAPE
Q500
ACC
CHECK
Q403
INVERT
RGB
OUT
OUT
G-Y
GEN
BPF/
ACC
R-Y/B-Y
DEMOD
MATRIX
26
21
19
19
36
28
31
32
H
CONT
V
CONT
DATA
SELECT
20
19
SW
SYNC
OUT
DELAY/
SHARP
POWER
CONTROL
Q406,407
IR
DRIVE
Q352,353
POWER
CONTROL
Q957,958
1
3
3
2
1
POWER
CONTROL
Q952,954
TRAP
CONTROL
Q503
RV351
R-CH
VCO
D903
D902
BATT+
S950
(POWER SELECT)
IC350
AUDIO IR
TRANSMITTER
IC401
CHARACTER GENERATER
D410
3.3V
HD
VD
R
G
B
B
POL
PAL
VCOM
HD OUT
VD OUT
R
G
B
POL
H SYNC
V SYNC
VCOM
ACC5V
ACC ON
PW ON
ACC Y/N
DATA
SCLK
CSN
L
IN
IN
R
IN
IN
Y IN
C IN
CSYNCIN
REM IN
REM HALT
S-DATA
S-SCL
A MUTE
A MUTE
SW1
SW2
SW2
IR CONT
VSYNC
CS
CLK
DATA
SCK
SDATA
P20
Q402
Q401
Q400
5V
REG
IC953
3.3V
REG
IC952
BATT+
BATT+
CVBS
CN950
AMP REM
ACC DET
POWER ON
SIRCS
V-SDATA
V-SCL
V-SCL
A MUTE
SW1
SW2
L-CH IR
R-CH IR
BATT
12V
BATT+
R IN2
SDATA
SCLK
CSYNC
G IN2
B IN2
YS
VR
VG
VB
VBLK
X500
3.579545MHz
X501
4.433619MHz
POWER
CONTROL
Q951,956
REMOTE
CONTROL
RECEIVER
IC404
OSD
2
1
3
Signal path
: AUDIO
: VIDEO
(Page 22)
(Page 22)
(Page 22)
22
22
XVM-R70
6-3. BLOCK DIAGRAM — DISPLAY SECTION —
12V
D800
IC400 (2/2)
SYSTEM CONTROL
RV802
SW REG
ADJUST
ADJUST
D803
D802
D801
T800
8V
VGH
VEE
N/P
PW DET
SDA
SCL
SIED 1
SIDE 2
SIDE 3
KEY IN
KEY HALT
P50
S501
(DOOR)
RESET
TFT ON
DIMMER
12V
VDD
VGL
12V
12V
R
G
B
HD
VD
PAL
POL
VCOM
EEPROM
IC402
8V
REG
IC351
BATT
13
22
56
54
53
59
8
25
14
28
32
19
31
30
13
29
27
17
21
5
6
7
59
58
57
27
44
50
36
56
60
23
32
13
14
5
6
12
2
5
1
3
10
11
9
14
15
4
7
3
2
PWM
COMP
ON/OFF
DRIVE
Q800,801
OSC
IC800
SWITCHING
REGULATOR
PWM
OUT
ERROR
AMP
RV800
DC-DC
FREQUENCY
1
3
5
2
50
44
6
FIELD DET
INT/EXT
SEL
VCOM
DRIVE
DRIVE
Q802-804
HD OUT
POLC
NBLK
PAL
POLS
VD OUT
MODE1
LR
18
55
MIRROR
UD 54
NODE2
MODE3
1
6
VCOM
UPSD
CX
OEV3
OEV2
OEV1
STV2
STV1
STH2
STH1
HDIR
CPH1
VB
VG
VR
VR
AI
VCC
AN
AO
BO
BO
CO
BN
CN
CN
BI
S0
S1
S2
CI
VG
VB
CPV
PDOS
OSCI
IC601
VCO
RV601
VCO
RV600
PLL FREERUN
IC600
DISPLAY CONTROL
3.3V
V
COUNT
V
SEL
OSC
MASK
PLL
DET
DET
H
COUNT
H
OUT
LCD1
LIQUID CRYSTAL
DISPLAY PANEL
V
OUT
COM
OSC
IC801
POWER
CONTROL
Q855,856,859
RESET
IC403
KEY IN
DETECT
Q404,405
KEY-IN
S401-406
OSC
BIAS
Q600,D601
POWER
CONTROL
Q853,854
SWITCH
Q857,858
CURRENT
DETECT
Q850
PULSE
STEERING
F/F
ERROR
AMP
ERROR
AMP
PWM
COMP
1
3
S951
(RESET)
Q506
IC501
RGB BLANKING
X2
X400
4.19MHz
X1
40
41
Q601
IC850
BACK LIGHT
CONTROL
D853
T850
BACK LIGHT
RV801
VCOM
BIAS
11
16
1
12
1
2
3
Signal path
: VIDEO
(Page 21)
(Page 21)
(Page 21)
23
23
XVM-R70
• Waveforms (LCD Board)
1
TP505
1V/DIV 50µsec/DIV
127µsec
2
0.2V/DIV 20µsec/DIV
3
0.2V/DIV 20µsec/DIV
H
0
10V/DIV 5µsec/DIV
14.7µsec
qa
1V/DIV 5msec/DIV
16.4µsec
3.5Vp-p
H
1Vp-p
1Vp-p
30.7Vp-p
3.5Vp-p
4
0.2V/DIV 200nsec/DIV
3.5714MHz
5
0.5V/DIV 200nsec/DIV
6
0.5V/DIV 200nsec/DIV
2.3MHz
qs
1V/DIV 50µsec/DIV
128µsec
qd
1V/DIV 20µsec/DIV
62.6µsec
qf
1V/DIV 50µsec/DIV
190.9µsec
0.8Vp-p
2.8MHz
1.1Vp-p
1.1Vp-p
3.5Vp-p
3.5Vp-p
3.5Vp-p
7
1V/DIV 10msec/DIV
16.5µsec
8
1V/DIV 20µsec/DIV
qh
1V/DIV 50nsec/DIV
7.2MHz
qg
1V/DIV 10µsec/DIV
63.4µsec
3.5Vp-p
64µsec
3.6Vp-p
3.6Vp-p
2.8Vp-p
9
5V/DIV 5µsec/DIV
8.4µsec
13.2Vp-p
qk
5V/DIV 2µsec/DIV
4.2µsec
ql
10V/DIV 2µsec/DIV
4.2µsec
11.8Vp-p
35Vp-p
w;
0.5V/DIV 20µsec/DIV
63µsec
wa
2V/DIV 50µsec/DIV
127µsec
ws
1V/DIV 20µsec/DIV
2H
2.2Vp-p
4.4Vp-p
3.3Vp-p
wf
1V/DIV 20µsec/DIV
2H
wd
1V/DIV 20µsec/DIV
2H
3.3Vp-p
3.2Vp-p
qj
0.2V/DIV 50nsec/DIV
14.48MHz
5.4Vp-p
TP506
TP507
TP508
TP352
TP353
TP406
TP407
TP850
TP851
TP601
TP602
TP603
TP606
TP609
TP611
TP612
TP801
TP802
TP808
TP809
TP810
TP811
TP812
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
for schematic diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in Ω and
1
/
4
W or less unless otherwise
specified.
•
%
: indicates tolerance.
•
f
: internal component.
• C : panel designation.
Caution:
Pattern face side: Parts on the pattern face side seen from the
(Side B)
Pattern face side: Parts on the pattern face side seen from the
(Side B)
pattern face are indicated.
Parts face side: Parts on the parts face side seen from the
(Side A)
(Side A)
parts face are indicated.
• A : B+ Line.
• B : B– Line.
• H : adjustment for repair.
• CN401 of XVM-R70 is connected to Connection Box with
• B : B– Line.
• H : adjustment for repair.
• CN401 of XVM-R70 is connected to Connection Box with
a monitor cable.
Power voltage is dc 14.4 V from ACC cord of the Connec-
tion Box and fed with regulated dc power supply.
Power voltage is dc 14.4 V from ACC cord of the Connec-
tion Box and fed with regulated dc power supply.
• CN401 of XVM-R70 is connected to Connection Box with
a monitor cable.
Voltage and waveforms are measured at input the color
bar signal from the Connection Box.
Voltage and waveforms are measured at input the color
bar signal from the Connection Box.
• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
g : VIDEO
• Abbreviation
CND : Canadian model.
for printed wiring boards:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
Note:
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
The components identi-
fied by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specified.
Note:
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
Les composants identifiés par
une marque 0 sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce por tant le numéro
spécifié.
• Abbreviation
CND : Canadian model.
24
24
XVM-R70
6-4. PRINTED WIRING BOARD — LCD SECTION (1/2) — • Refer to page 23 for Common Note on Printed Wiring Boards.
1
A
B
C
D
E
F
G
H
I
J
2
3
4
5
6
7
8
9
10
11
12
13
1-688-870-
11
R872
C831
C833
C835
D804
D805
C837
L807
L809
L805
L806
L803
L804
L810
L808
R873
R874
C857
D853
R866
R886
D854
R862
C810
C806
C855
R801
C801
R810
C809
C802
R802
R864
R865
D852
R878
C858
R876
D855
Q856
R877
R803
R867
R868
R879
R858
Q854
Q853
R804
R815 R814
R811
C808
R813
R812
C800
R451
R440
C426
R441
R442
R443
R444
R445
R464
C407
X400
C406
R469
R403
R402
C403
IC403
R411
C425
R412
R439
R438
C509
C508
C507
C505
C504
C503
C502
R520
R534
R533
R510
R519
R518
C534
Q502
Q501
Q503
R521
R535
C530
Q500
C600
R614
R617
R635
R823
R820
R826
R817
R822
C816
R627 R626
R625 R624
R623
C601
R621
R619
R622
R658
R655
R654
R656
Q601
R618
C611
R630
R631
C608
R632
C604
C618
C627
R648
C617
FL601
C602
R659
R504
R506
C519
R508
C525
R509
C526
C531
C413
R450
R449
R448
R447
R446
R875
R887
R885
Q858
Q857
R415
Q402
Q401
Q400
R416
R482
R480
R417
R414
C827
C824
C818
C821
IC800
9
8
16
1
IC401
1
20
10
1
2
3
11
IC402
5
4
8
1
IC501
9
8
16
1
IC801
8
5
1
4
IC850
1
16
8
89
Q850
Q859
Q855
R500
R809
R610
R600
C612
R634
R633
R629
C607
C609
R613
R615
R616
R657
R602
R604
R606
R608
C516
C517
C520
L500
R505
R507
C522
R502
R501
R455
R517
R530
R531
R532
C528
C539
C541
C537
R515
R512
C547
R514
C536
C535
C411
C518
C515
C514
C540
C523
C527
C524
C529
C532
L503
L603
Q804
Q802
Q803
R819
L802
JC801
C813
R818
R816
R821
IC600
48
49
64
32
17
33
1
16
IC500
32
33
48
16
1
17
49
D501
64
D602
D604
D356
R410
R470
R859
R861
R860
R643
C622
D603
LCD BOARD (SIDE B)
D356
C-8
D501
G-10
D602
D-12
D603
D-12
D604
D-12
D804
C-4
D805
C-4
D852
G-1
D853
C-3
D854
G-3
D855
G-3
IC401
H-7
IC402
H-9
IC403
H-8
IC500
H-11
IC501
F-12
IC600
E-11
IC800
G-4
IC801
D-9
IC850
G-2
Q400
B-7
Q401
B-6
Q402
B-7
Q500
G-12
Q501
I-11
Q502
I-11
Q503
I-12
Q601
F-10
Q802
D-9
Q803
D-9
Q804
D-10
Q850
G-2
Q853
H-3
Q854
H-3
Q855
G-2
Q856
G-1
Q857
F-1
Q858
F-2
Q859
G-2
• Semiconductor
Location
Ref. No.
Location
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