Sony DAV-DZ260 / DAV-DZ270 / HCD-DZ260 / HCD-DZ270 / HCD-HDZ278 Service Manual ▷ View online
HCD-DZ260/DZ270/HDZ278
29
SECTION 5
ELECTRICAL ADJUSTMENTS
When the optical pick-up assy is replaced, perform the
“EXECUTING IOP MEASUREMENT”.
“EXECUTING IOP MEASUREMENT”.
EXECUTING IOP MEASUREMENT (See page 25)
[FM Tune Level Check]
Procedure:
1. Turn the power on.
2. Input the following signal from Signal Generator to FM
1. Turn the power on.
2. Input the following signal from Signal Generator to FM
antenna input directly.
* Carrier Freq : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation : 75 kHz
Modulation : 1 kHz
ANT input : 35 dBu (EMF)
Note: Please use 75 ohm “coaxial cable” to connect SG and the set. You
cannot use video cable for checking.
Please use SG whose output impedance is 75 ohm.
3. Set to FM tuner function and tune A, B and C signals.
4. Confi rm “TUNED” is lit on the display for A, B and C
signals.
The mark of “TUNED” means “The selected station signal is
received in good condition.”
DVD SECTION
TUNER SECTION
generator
OUT (75
Ω)
SET
HCD-DZ260/DZ270/HDZ278
30
SECTION 6
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
• All capacitors are in
μF unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω and
1
/
4
W or less unless otherwise
specifi ed.
• f :
internal
component.
• C : panel designation.
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
(In addition to this, the necessary note is printed in each block.)
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages and waveforms are dc with respect to ground in
service mode.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
Voltage variations may be noted due to normal production
tolerances.
no mark : TUNER (FM)
<
<
> : DVD PLAY
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M
Ω).
• Circled numbers refer to waveforms.
• Signal path.
F :
F :
TUNER
J
: DVD PLAY
L :
VIDEO
E :
Y
a :
CHROMA
r : COMPONENT VIDEO
• Abbreviation
AR
AR
:
Argentina
model
AUS :
Australian
model
CND :
Canadian
model
E3
: 240 V AC area in E model
E12
: 220-240 V AC area in E model
E32
: 110-240 V AC area in E model
E87
: Venezuelan model
KR
: Korea model
MX
: Mexican model
TW :
Taiwan
model
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• a
• X : Parts extracted from the component side.
• a
:
Through
hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Note:
The components identi-
fi
The components identi-
fi
ed by mark 0 or dotted
line with mark 0 are criti-
cal for safety.
Replace only with part
number specifi ed.
cal for safety.
Replace only with part
number specifi ed.
Note:
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
Les composants identifi és
par une marque 0 sont
critiques pour la sécurité.
Ne les remplacer que par
une piéce portant le nu-
méro spécifi é.
• Indication of transistor.
C
B
These are omitted.
E
Q
C E
B
These are omitted.
Caution:
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Pattern face side:
(SIDE B)
Parts face side:
(SIDE A)
Parts on the pattern face side seen from
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
the pattern face are indicated.
Parts on the parts face side seen from
the parts face are indicated.
• Abbreviation
AR
AR
: Argentina model
AUS :
Australian
model
CND : Canadian model
E3
E3
: 240 V AC area in E model
E12
: 220-240 V AC area in E model
E32
: 110-240 V AC area in E model
E87
: Venezuelan model
KR
: Korea model
MX
: Mexican model
TW :
Taiwan
model
Ver. 1.2
HCD-DZ260/DZ270/HDZ278
HCD-DZ260/DZ270/HDZ278
31
31
• Waveforms
– MAIN Board –
– MAIN Board –
• Circuit Boards Location
– IO-SCART Board (DZ260) –
– IO-COMPONENT Board
(DZ270/HDZ278) –
(DZ270/HDZ278) –
IC404 RI (Cr OUT)
500 mV/DIV, 20
μs/DIV
IC404 RL (Cb OUT)
500 mV/DIV, 20
μs/DIV
IC404 X (CY OUT)
500 mV/DIV, 20
μs/DIV
H
1Vp-p
1Vp-p
H
1Vp-p
H
IC400 (Cin)
1 V/DIV, 20
μs/DIV
IC400 (Yin)
1 V/DIV, 20
μs/DIV
IC400 (CVin)
1 V/DIV, 20
μs/DIV
IC400 RT (Cbin)
500 mV/DIV, 20
μs/DIV
IC400 RG (Crin)
500 mV/DIV, 20
μs/DIV
IC400 XE (CVBSout)
500 mV/DIV, 20
μs/DIV
0.72Vp-p
0.72Vp-p
H
1Vp-p
H
1Vp-p
H
H
1Vp-p
H
H
1.3Vp-p
IC1101 (DVDRFIP)
200 mV/DIV, 100 ns/DIV
IC1101 [
Y (R/Cr/Pr)
500 mV/DIV, 20
μs/DIV
IC1101 [
D (B/Cb/Pb)
500 mV/DIV, 20
μs/DIV
IC1101 [
C (Y/G)
1 V/DIV, 20
μs/DIV
IC1101 [
(C)
1 V/DIV, 20
μs/DIV
IC1101 [[ (Y)
1 V/DIV, 20
μs/DIV
IC1101 YD
(XTALO)
500 mV/DIV, 20 ns/DIV
IC501 RE (Xout)
1 V/DIV, 100 ns/DIV
IC702 XB (XOUT (O))
1 V/DIV, 20 ns/DIV
IC3010 RG (XFSOOUT)
1 V/DIV, 10 ns/DIV
RB
IC3010 SL (XFSOIN)
1 V/DIV, 10 ns/DIV
RT
IC3051 (3Y)
1 V/DIV, 10 ns/DIV
0.72Vp-p
0.72Vp-p
H
1Vp-p
H
1Vp-p
H
H
1Vp-p
4.3Vp-p
49.1MHz
1.6Vp-p
27MHz
4.3Vp-p
49.1MHz
4.3Vp-p
49.1MHz
3.4Vp-p
4Vp-p
5MHz
12.288MHz
650mVp-p
H
SPEAKER board
IO-SCART board (DZ260)
IO-COMPONENT board (DZ270/HDZ278)
IO-COMPONENT board (DZ270/HDZ278)
MAIN board
POWER board
MS-203 board
P-SW board
FL board
JACK board
HCD-DZ260/DZ270/HDZ278
HCD-DZ260/DZ270/HDZ278
32
32
RF
DETECTOR
LASER
DIODE
(FOR CD)
OPTICAL PICK-UP
BLOCK
(KHM-313CAA)
Q1102 (1/2)
LD DRIVE
CONTROL (FOR CD)
DVDRFIP
10
OSN
1
OSP
V2REFO 27
RXD
TXD
DVDA
VOA/A
VOB/B
VOC/C
VOD/D
VOD/D
VOF/F+H
VOE/E+G
VC
PD
CD LD
(780)
6
DVDB
7
DVDC
8
DVDD
9
TNI
17
TPI
A
A
B
C
D
B
C
D
C
D
18
NA
11
NB
12
MC
13
MD
14
V20 (2.0V)
28
LD01
22
MDI1
19
MDI2
20
LASER
DIODE
(FOR DVD)
Q1102 (2/2)
LD DRIVE
CONTROL (FOR DVD)
Q1101
PD VOLUME
CONTROL
IC1201
FOCUS/TRACKING COIL DRIVER,
LOADING/SPINDLE/SLED MOTOR DRIVER
IC1101 (1/3)
CD/DVD RF AMP,
FOCUS/TRACKING ERROR AMP,
DVD SYSTEM CONTROL,
DIGITAL SERVO PROCESSOR
IC501 (1/5)
SYSTEM CONTROLLER
XSYSRST
IFSCK
IFSDO
IFSDI
XIFCS
IC510
EEPROM
IC4502
BUFFER
IC707
A/D CONVERTER
(SERVICE JIG)
BUFFER
DVD LD
VR (650)
VR (780)
VR (780)
MSW
Q1103
10P
VCC
(650)
LD02
MSW
FOO
VREFO
TRO
FMO
DMO
DMO
21
TROPENPWM
38
MTK RST
NC
MCKO
LRCKO
BCKO
AMP_D2
AMP_D1
AMP_D0
38
BCK
8
DOUT
TXD
RXD
V2REFO
RFMON
CN1105
1
2
5
6
L-IN
R-IN
9
LRCK
7
SCKI
6
9
11
SDA
5
SCL
6
DVD_SCO
33
DVD_SOD
32
DVD_SID
31
DVD XIFCS
37
CDM_OPEN_SW/XM_SEL
27
DVD_XIFBUSY
XSYSRST
S001
(CHUCK/TRAY DETECT)
M203
(LOADING MOTOR)
XSYSRST
OCSW1
CKSW
LDM+
LDM-
34
98
FMO
37
FOO
41
DMO
36
TRO
FMO
FOO
FOO
DMO
TRO
TRO
40
V REFO
29
FWD
94
REV
95
IOPMON
39
SPFG OP_INP
35
MUTE123
MUTE
TSD_M
MUTE
TSD_M
LIMITSW
(LIMIT SW)
53
42
25
21
22
20
19
45
7
6
40
17
16
13
10
4
3
1
48
43
15
24
41
54
2AXIS
DEVICE
FOCUS/
FOCUS/
TRACKING
COIL
(SLED MOTOR)
REG01
REG02
(SPINDLE MOTOR)
FCS+
FCS-
TRK+
TRK-
SP-
SP+
SL-
SL+
SL+
BUFFER
46
47
47
MCS
BUFFER
32
31
30
29
31
30
29
SPINDLE MOTOR
DRIVE
27
28
28
SLED MOTOR
DRIVE
FOCUS COIL
DRIVE
36
37
37
TRACKING COIL
DRIVE
35
34
34
M
M
M
M
130
158
157
105
106
106
MC_DATA (ADIN) 206
ASDATA3 222
XSYSRST
IFCK
47
I2C_DATA
48
I2C_CLK
99
XIFCS
14
VINR
13
VINL
97
IFSDO
108
OCSW 104
IFBSY 110
CKSW 103
IFSDI 100
256
8
12
ASDATA0 226
7
13
ASDATA1 225
6
14
ASDATA2 223
5
15
ABCK 204
4
16
ALRCK 205
2
18
ACLK 203
AUDIO
SECTION
B
AMP
SECTION
A
VIDEO
SECTION
C
AUDIO
SECTION
D
M
• SIGNAL PATH
: TUNER
: DVD PLAY
: DVD PLAY
6-1. BLOCK DIAGRAM – RF Section –
(Page 34)
(Page 35)
(Page 34)
(Page 33)
Ver. 1.1
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