Sony HCD-DZ7T Service Manual ▷ View online
29
HCD-DZ7T
SECTION 5
ELECTRICAL ADJUSTMENT
DVD SECTION
When the optical pick-up assy is replaced, perform the “Executing
IOP Measurement”.
IOP Measurement”.
Executing IOP Measurement (See page 26)
[FM Tune Level Check]
Procedure:
1. Turn the power on.
2. Input the following signal from Signal Generator to FM
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)
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.
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. Confirm “TUNED” is lit on the display for A, B and C signals.
4. Confirm “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.”
received in good condition.”
TUNER SECTION
generator
OUT (75
Ω
)
SET
30
HCD-DZ7T
SECTION 6
DIAGRAMS
For Schematic Diagrams.
Note:
• All capacitors are in
Note:
• All capacitors are in
µ
F unless otherwise noted. (p: pF)
50 WV or less are not indicated except for electrolytics and
tantalums.
tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
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 un-
der 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
tolerances.
no mark : DVD STOP
tolerances.
no mark : DVD STOP
*
: Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M
Ω
).
• Circled numbers refer to waveforms.
• Signal path.
F
: AUDIO
J
: CD PLAY
c
: DVD PLAY
d
: TUNER
L
: VIDEO
E
: Y
a
: CHROMA
r
: COMPONENT VIDEO
f
: AUDIO IN
h
: DIGITAL IN
• Abbreviation
E32
: 110 – 240V AC area in E model
MX
: Mexican model
SP
: Singapore model
TH
: Thai model
For Printed Wiring Boards.
Note:
•
Note:
•
X
: parts extracted from the component side.
•
a
: Through hole.
•
: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
• Indication of transistor.
Caution:
Pattern face side: Parts on the pattern face side seen from
(SIDE B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.
Pattern face side: Parts on the pattern face side seen from
(SIDE B) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.
Note: The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
C
B
These are omitted.
E
Q
C E
B
These are omitted
Ver. 1.1
31
31
HCD-DZ7T
HCD-DZ7T
• Circuit Boards Location
• Waveforms
– MAIN Board –
– MAIN Board –
– IO-S-OUT Board –
2
IC1101
<xcv
(XTALI)
1 V/DIV, 10 ns/DIV
37 ns
3.3 Vp-p
1
IC1101
6
(DVDRFIP)
200 mV/DIV, 100 ns/DIV
900 mVp-p
3
IC1101
<z,m
(CVBS)
500 mV/DIV, 20
µ
s/DIV
H
1.5 Vp-p
5.0 Vp-p
20.3 ns
5
IC3010
rk
(XFSOIN)
1 V/DIV, 10 ns/DIV
4
IC501
qg
(XIN)
1 V/DIV, 100 ns/DIV
200 ns
3.0 Vp-p
1
IC308
wh
(C OUT)
2
IC308
wa
(Y OUT)
3
IC308
w;
(CY OUT)
4
IC308
qk
(Cb OUT)
5
IC308
qh
(Cr OUT)
1 V/DIV, 20
µ
s/DIV
H
1.3 Vp-p
1 V/DIV, 20
µ
s/DIV
2 Vp-p
H
1 V/DIV, 20
µ
s/DIV
2 Vp-p
H
1.8 Vp-p
H
500 mV/DIV, 20
µ
s/DIV
500 mV/DIV, 20
µ
s/DIV
H
1.5 Vp-p
– DSP Board –
1
IC002
<zvx
(CLKIN)
40 ns
1.9 Vp-p
1 V/DIV, 20 ns/DIV
FL board
JACK board
P-SW board
IO-S-OUT board
SP board
MAIN board
HEATSINK B board
HEATSINK A board
TUNER (FM/AM)
POWER board
DSP board
MS-203 board
INSURATOR board
32
32
HCD-DZ7T
HCD-DZ7T
6-1. BLOCK DIAGRAM – RF/VIDEO SECTION –
C
AUDIO
SECTION
(Page 34)
A
POWER
SECTION
(Page 35 )
AUDIO
SECTION
(Page 34)
B
: CD PLAY
: DVD PLAY
: AUDIO
¥ Signal Path
: VIDEO
: Y
: CHROMA
: COMPONENT VIDEO
IC454(1/2) INV AMP
SCORE
XVOICE
199
200
Rch
Lch
224
226
SCORE
VOICE
VOICE
5
DC
DC
DC
DC
7
6
IC451(1/2) AMP
5
7
6
IC453 SCORE DET
6
7
5
3
1
2
IC454(2/2) INV AMP
3
1
2
CN451
MUSIC L+R
MUSIC
MIC 1+2
D-LIGHT SYNC OUT
IC451(2/2) AMP
3
1
2
IC452 VOICE DET
6
7
5
3
1
2
DETECTOR
6
2
3
4
5
11
10
19
18
252
253
DVDRFIP
DVDA
DVDB
DVDC
DVDD
TPI
TNI
MC
MD
MD
29 V2O
C
D
LD01
MDI1
LD02
MSW
IOP
MDI2
OSP
OSN
IC1101
CD/DVD RF AMP,
FOCUS/TRACKING ERROR AMP
DVD SYSTEM PROCESSOR
DIGITAL SERVO PROCESSOR
OPTICAL
PICK-UP
BLOCK
(KHM-313CAA)
2AXIS
DEVICE
FOCUS/
FOCUS/
TRACKING
COIL
23
20
LIMITSW
SMPTE_Y[0]
|
SMPTE_Y[7]
Y0
|
Y7
TX2P,N
|
TX0P,N
TCKP,N
HTPLG
TX27M
CLK
VCK
130
22
21
36
48
43
15
37
1
Q1102 (2/2)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q1101
VOLUME CONTROL
Q1102 (1/2)
AUTOMATIC POWER
CONTROL (FOR CD)
LASER
DIODE
(FOR CD)
LASER
DIODE
(FOR DVD)
FOCUS COIL
DRIVE
42
41
35
3
34
4
TRACKING COIL
DRIVE
32
31
38
42
39
37
41
30
50
REG
REG
IC1201
FOCUS/TRACKING COIL DRIVER,
SLED/SPINDLE/LOADING MOTOR DRIVER
27
28
M
M
M
M
(SPINDLE MOTOR)
46
47
FMO
TROPENPWM
FOO
DMO
TRO
VREFO
SPFG
40 IOPMON
RF
VOA/A
VOB/B
VOC/C
VOD/D
VOF/F+H
VOE/E+G
VC
LIMIT SW
LD(780)
PD
VR(780)
VR(650)
(LO:DVD,HI:CD)MSW
LD(650)
FCS+
VCC
FCS
TRK+
+3.6V
+2.5V
TRK
SP+
SP
SL+
SL
D C B A
SW+9V
9 NB
B
8 NA
A
REG
VCC
VCC
39
PS
V REF
RF+3.3V
8
30
29
SLED MOTOR
DRIVE
SPINDLE MOTOR
DRIVE
M
M
(SLED MOTOR)
51
BUFFER
BUFFER
TSD
MCS
19
20
22
21
40
45
IC501 (1/4)
SYSTEM CONTROLLER
IC1701
HDMI DRIVE
98
IFCK
DVD_SCO
33
99
xIFCS
DVD_XIFCS
37
108
xSYSRST
MTK_RST
SYSRST
SCO
SCD
SCD
SID
38
97
IFSDO
DVD_SOD
32
100
IFSDI
53
OCSW
CDM_OPEN_SW
27
112
IFBSY
CKSW
XTALI
DVD_XIFBUSY
34
DVD_SID
31
10
13
16
17
6
7
172 REV
173 FWD
222
KMOD
KARAOKE_MODE
KRMOD
36
167
MIC
MIC_DET_OUT
MIC
35
9
12
171 MUTE123
169 MUTE
168 TSD_M
22
24
24
25
52
EEWP 54
CKSW
OCSW1
S001
M203
(CHUCK/TRAY DETECT)
(LOADING MOTOR)
LDM+
LDM-
28 V2REFO
105 RXD
106 TXD
5
6
2
1
RFMON
CN1105
TO DIAG JIG
V2REFO
RXD
TXD
Q1103
SPDIF
XSYSRST
IC1102
32M FLASH ROM
IC1103
EEPROM
Q1701
SWITCH
SCL
SDA
WE
IC1111(2/2)
X1101
27MHz
191
Y
182
R/Cr/Pr
189
187
C
CVBS
185
Y/G
183
B/Cb/Pb
177
WIDE
J301
J303(1/2)
12 CBIN
10 CYIN
4 CVBSIN
18
CBOUT
14
25
CRIN
SI
20
CYOUT
23
CVBSOUT
2 CIN
6
YIN
26
COUT
21
YOUT
16
CROUT
CBOUT
CYOUT
VOUT
CROUT
SYOUT
SCOUT
COMPONENT
VIDEO OUT
S VIDEO
(DVD ONLY)
MONITOR OUT
VIDEO
Y
PB/CB
PR/CR
J300(1/2)
SAT/CABLE
VIDEO IN
IC308
VIDEO AMP, 75
Ω DRIVER
83
V_SEL1
87
V_SEL2
88
V_SEL3
HDMI+5V
+5V POWER
CEC
TMDS DATA2-0 +, -
TMDS CLOCK +, -
HPD
3
CEC_RX_IN
22
CEC_TX_OUT
82
V_SEL0
6
1
IC309
VIDEO OUTPUT SELECTOR
Q9724,9726,9728
RX-BUFFER
3
2
1
7
IC1111(1/2)
OSC
IC1705
4
3
6
IC1104
64M SDRAM
234
VCLK 166
165
|
161
159
|
157
7 6 5
5
4
Q9729
TX-BUFFER
+3.3V
58,57
55,54
52,51
55,54
52,51
26
40
11
SPDIF
SPDIF 216
72
AD3
ASDATA0 197
73
ACK
ACLK 211
77
ABCK
ABCK 210
78
ALRCK
ALRCK 209
79
PWON
PWON 223
24
SSO
SDA 102
22
SCK
SCL 101
HDMI_SDA 104
HDMI_SCL 103
21
XRST
XSYSRST 108
25
13
|
20
49,48
CN1701
HDMI OUT
(DVD ONLY)
2
SDA
SCL
8
13 MUTE2
3 MUTE1
4
2
1
Click on the first or last page to see other HCD-DZ7T service manuals if exist.