Sony DHC-AZ77DBT / HCD-AZ77DBT Service Manual ▷ View online
HCD-AZ77DBT
HCD-AZ77DBT
29
29
FM TUNE LEVEL CHECK
signal
generator
set
Procedure:
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
1. Turn on the set.
2. Input the following signal from signal generator to FM antenna
input directly.
Carrier frequency : A = 87.5 MHz, B = 98 MHz, C = 108 MHz
Deviation
: 75 kHz
Modulation
: 1 kHz
ANT input
: 35 dBu (EMF)
Note: Use 75 ohm coaxial cable to connect signal generator and the set.
You cannot use video cable for checking.
Use signal generator 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 sig-
nals.
When the selected station signal is received in good condition,
“TUNED” is displayed.
TUNER SECTION
Checking Location:
– DMB17 Board (Component Side) –
6
1
CN105
IC104
IC102
IC101
IC201
DVD SECTION
TEST DISC LIST
Use the following test disc on electrical adjustments.
YEDS-18 (CD)
Use the following test disc on electrical adjustments.
YEDS-18 (CD)
: PART No. 3-702-101-01
PATD-012 (CD)
: PART No. 4-225-203-01
HLX-503 (DVD-SL) (NTSC) : PART No. J-6090-069-A
HLX-504 (DVD-SL) (NTSC) : PART No. J-6090-088-A
HLX-506 (DVD-SL) (PAL) : PART No. J-6090-077-A
HLX-501 (DVD-DL) (NTSC) : PART No. J-6090-071-A
HLX-505 (DVD-DL) (NTSC) : PART No. J-6090-089-A
HLX-507 (DVD-DL) (PAL) : PART No. J-6090-078-A
HLX-504 (DVD-SL) (NTSC) : PART No. J-6090-088-A
HLX-506 (DVD-SL) (PAL) : PART No. J-6090-077-A
HLX-501 (DVD-DL) (NTSC) : PART No. J-6090-071-A
HLX-505 (DVD-DL) (NTSC) : PART No. J-6090-089-A
HLX-507 (DVD-DL) (PAL) : PART No. J-6090-078-A
Note: Do not use excepting test disc for DVD.
ADJUSTMENT AFTER OPTICAL PICK-UP BLOCK RE-
PLACED
After optical pick-up block is replaced, adjustment is necessary. In
this case, perform “EXECUTING IOP MEASUREMENT” (Refer
to page 25 in TEST MODE) next.
PLACED
After optical pick-up block is replaced, adjustment is necessary. In
this case, perform “EXECUTING IOP MEASUREMENT” (Refer
to page 25 in TEST MODE) next.
RF LEVEL CHECK
+
–
–
DMB17 board
CN105 pin (RFMON)
CN105 pin (GND)
oscilloscope
(DC range)
Procedure :
1. Connect the oscilloscope to CN105 pin 6 (RFMON) and
1. Connect the oscilloscope to CN105 pin 6 (RFMON) and
CN105 pin 3 (GND) on the DMB17 board.
2. Press the [
?
/
1
] button to turn the power on.
3. Insert the test disc and touch the [
Y
] sensor to playback.
4. Confi rm that oscilloscope waveform is as shown in the fi gure
below. (eye pattern)
A good eye pattern means that the diamond shape (
◊) in
the center of the waveform can be clearly distinguished.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
0.8 p 0.2 Vp-p (DVD)
0.8 p 0.2 Vp-p (CD)
HCD-AZ77DBT
HCD-AZ77DBT
30
30
7-1. BLOCK DIAGRAM - RF SERVO/VIDEO Section -
FLASH ROM
IC101
DQ0 – DQ7
HD0 – HD7
DG15/A-1, A0 – A20
HA0 – HA21
D/A CONVERTER
IC301
OPTICAL PICK-UP
BLOCK
(KHM-313CAB)
RF AMP, SERVO DSP,
MPEG DECODER
IC102
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
IC201
AUTOMATIC POWER
CONTROL (FOR CD)
Q102-2
DVDRFIP
6
MA
8
MB
9
MC
10
MD
11
RF
USBP
47
USBM
48
DVDA
2
SDTI1
14
DVDB
3
DVDC
4
DVDD
5
VOA/A
VOB/B
VOC/C
VOD/D
VOD/D
TNI
18
VOE/E+G
TPI
19
VOF/F+H
V2O
29
VC
LDO1
23
LD (780)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q102-1
LDO2
22
LD (650)
FOO
DD1–
DD1+
DD1+
DD2+
DD2–
DD2–
DD3–
DD3+
DD3+
DD4–
DD4+
DD4+
OPIN1–
OPIN1+
OPIN1+
DD5+
DD5–
DD5–
OPIN2–
REGO2
REGO1
REGO1
42
CD ON
SWITCH
Q101-1
DVD ON
SWITCH
SWITCH
Q101-2
VR (780)
MSW
LIMITSW
51
VR (650)
FCS+
MSW
MDI1
20
MDI2
21
PD
LIMIT
Q103
XROMCS
CE
SD-RAM
IC104
X101
27MHz
S003
(TRIGGER)
FL
FR
B
36
FCS–
37
1
TRO
41
TRK+
35
TRK–
34
4
FMO
38
SL+
29
SL–
30
10
DMO
37
SP+
27
SP–
28
31
32
32
41
46
47
47
13
SPFG
50
REV
FWD
45
TROPENPWM
39
ASDATA4
LOUT3+ 42
LOUT3– 41
LOUT3– 41
ROUT3+ 40
ROUT3– 39
ROUT3– 39
MCLK
10
ACLK
BICK
9
ABCK
LRCK
17
ALRCK
SDA
20
SDA 102
SCL
19
SDA
5
SCL
6
WP
7
SCL
EEWP 54
PDN
8
XRST
XT
ALI
TRG_SW
XT
ALO
EEPROM
IC103
VBUS_OC
USB_OCD
USB_SW
VBUS_OE
MIX AMP
IC3751
SDTI2
15
ASDATA1
SDTI3
16
ASDATA2
SDTI4
13
LT
RT
ASDATA0
LOUT4+ 38
LOUT4– 37
LOUT4– 37
ROUT4+ 33
32
ROUT4–
MIX AMP
IC3771
FL, FR, SR, SL, FC, SW, LT, RT
C
USB_OCD, USB_SW
79, 80,
82 – 86, 89
29, 31, 33, 35,
38, 40, 42, 44
92, 77, 56 – 62, 74 – 67,
91, 63, 64, 75, 87
45, 25 – 18, 8 – 1,
48, 17, 16, 9, 10
DQ0 – DQ15
RD0 – RD15
A0 – A11
RA0 – RA11
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
121 – 119,
117 – 113, 129 – 122
140, 141, 143, 144,
155 – 150, 139, 149
23 – 26,
29 – 34, 22, 35
76
26
XRD
OE
78
28
XWR
WE
66
11
RESET
12
BA0
BA0
20
BA1
BA1
21
DRCLK
CLK
38
CKE
CKE
37
DQM0
LDQM
15
DQM1
UDQM
39
RAS
RAS
18
CAS
CAS
17
RCS
CS
19
RW
E
W
E
WIDE
16
• SIGNAL PATH
: CD PLAY
: DVD PLAY
: AUDIO
: VIDEO
: Y
: CHROMA
: COMPONENT VIDEO
: USB INPUT
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SLED
MOTOR DRIVE
SPINDLE
MOTOR DRIVE
REGULATOR
25
24
24
16
17
17
MUTE123
MUTE123 19
MUTE
MUTE4 20
TSD_M
TSD_M 22
IOPMON
40
40
8
PS 21
15
LOADING
MOTOR DRIVE
BUFFER
BUFFER
M
M001
(LOADING)
RF+3.3V
SW+5V
S002
(CHUCKING)
CKSW
52
S001
(DISC IN/OUT)
OCSW
SW+3.3V
53
REGO2
REGO1
REGO1
P_I_DVD_SI
IFSDO
32
19
97
P_I_DVD_XIFCS
XIFCS
26
99
P_I_KRMOD
KMOD
27
P_O_DVD_SO
IFSDI
31
P_I_DVD_SCK
IFCK
33
98
P_O_DVD_BUSY
XIFBSY
28
P_O_DVD_SYSRST
XSYSRST
34
P_VIDEO_MUTE
23
SWITCH
Q2001
SW+3.3V
P_DVD_I_MTK
_SLOT_IN
_SLOT_IN
65 P_MIC_IN
SYSTEM CONTROLLER
IC401 (1/5)
CENTER VOLTAGE
GENERATOR
Q3801
VIDEO OUT
J1202
S VIDEO OUT
J1201
C
Y
CVBS
DSEL
J1203
COMPONENT
VIDEO OUT
Y
P
B
/C
B
P
R
/C
R
B/CB/PB
Y/G
IN1–
IN2–
IN3–
IN4–
OPOUT1
FWD
REV
CTL
OPOUT2
REGCTL
R/CR/PR
VIDEO AMP, 75
Ω DRIVER
IC1201
4 CVBS IN
2 C IN
6 Y IN
10 CY IN
12 CB IN
14 CR IN
23
CVBS OUT
26
C OUT
21
Y OUT
20
CY OUT
18
CB OUT
16
CR OUT
27
S-DC OUT
3
MUTE1
13
MUTE2
25
S1
9
I/P
C
Y
3
2
D+
D–
CN001
(USB)
XVOICE
SCORE
XVOICE
SCORE
MIC
MIC
A
XVOICE, SCORE, MIC
SWITCH
Q464
101
211
210
210
209
228
197
203
202
214
130
173
172
172
171
169
168
168
200 199
167
198
100
112 222
108
234
233
179
181
227
177
133
136
134
135
132
111
147
146
138
137
182
183
185
191
189
187
LOUT1+ 2
LOUT1– 1
LOUT1– 1
ROUT1+ 48
ROUT1– 47
ROUT1– 47
LOUT2+ 46
LOUT2– 45
LOUT2– 45
ROUT2+ 44
ROUT2– 43
ROUT2– 43
MIX AMP
IC3711
MIX AMP
IC3731
SR
SL
FC
SW
: DIGITAL OUT
ADIN 212
N
AUDIO
13
LIN
9 DOUT
6 SCKL
7 LRCK
8 BCK
8 BCK
14
RIN
R-CH
ALRCK
ABCK
ACLK
ALRCK
ABCK
ABCK
ACLK
A/D CONVERTER
IC3601
• R-ch is omitted due to same as L-ch.
SECTION 7
DIAGRAMS
(Page 32)
(Page 34)
(Page 31)
(Page 32)
HCD-AZ77DBT
HCD-AZ77DBT
31
31
7-2. BLOCK DIAGRAM - BT/TUNER/TAPE DECK/MIC Section -
T301
BIAS OSC
BIAS OSC
Q318
REC BIAS
SWITCH
Q316, 317
A+9V
R-CH
TUNER (FM/AM)
AM
FM ANT
AM ANT
L OUT
R OUT
ST DOUT
TUNED
LINE_
OUT2
PB_EQ2
ST DIN
ST CLK
ST CE
FM 75
COAXIAL
ANTENNA
L-CH
R-CH
R-CH
ERASE
R-CH
MUTING
Q303
MUTING CONTROL
SWITCH
Q314, 315
R-CH
MUTING
Q301, 302
R-CH
MUTING CONTROL
SWITCH
Q311 – 313
MUTING CONTROL
SWITCH
Q361
MUTING
Q104
71
70
48
50
EQ
68
67
66
REC/PB EQ AMP
IC101 (1/2)
TAPE MECHANISM
DECK BLOCK (2/2)
TAPE MECHANISM
DECK BLOCK (1/2)
SHUT
HALF
F-REC
R-REC
TRGM+
43 ST-CE
41 ST-CLK
40 ST-DOUT
42 ST-DIN
39 ST-TUNED
70 TC LINE MUTE
68 TC PB/REC
69 TC REC MUTE
67 TC BIAS
90 TC SHUT
91 TC HALF/REC
79 TC TRGM+
E
ST-L
G
REC-L
F
PB-L
MUTING
Q103
R-CH
MUTING CONTROL
SWITCH
Q362
TRIGGER PLUNGER
DRIVE
Q321, 322
CAPM+
M
78 TC CAPM+
CAPSTAN/REEL
MOTOR DRIVE
Q328, 329
SYSTEM CONTROLLER
IC401 (2/5)
• SIGNAL PATH
: TAPE PLAY
: REC
: TUNER (FM/AM)
: MIC INPUT
• R-ch is omitted due to same as L-ch.
D
MUSIC L+R
COMPARATOR
IC802 (2/2)
COMPARATOR
IC802 (1/2)
COMPARATOR
IC801 (1/2)
XVOICE
SCORE
MIC
A
XVOICE, SCORE, MIC
H
MIC SIGNAL
AC/DC
CONVERTER
IC800 (2/2)
COMPARATOR
IC801 (2/2)
A+9V
J1061
MIC 1
MIC 1
J1060
MIC 2
MIC 2
MIC AMP
IC1060 (2/2)
MIC AMP
IC1060 (1/2)
RV1061
MIC LEVEL
BIAS
TRAP
C306, L301
(CAPSTAN/REEL)
PB_INA2
REC_EQ2
5
15
7
MIC IN
8 MICVOL IN
MIC OUT
28
MIX OUT
PB_INB2
LINE_
IN2
CASSETTE
DETECT
Q330, 331
SDA/MIC VOL
RV1060
ECHO LEVEL
16
SCL/ECHO VOL
DIGITAL ECHO
IC1101
D801
D803
D806 – 808
+
+
Q465
AC/DC
CONVERTER
IC800 (1/2)
IC904
BLUETOOTH MODULE
ANT901
PATTERN
ANTENNA
(FOR BLUETOOTH)
25
37
38
35
75
36
12
39
38
41
46
40
10
9
A_OUT_P_L
A_OUT_N_L
8
7
A_OUT_P_R
A_OUT_N_R
5
4
A_IN_P_L
A_IN_N_L
3
2
A_IN_P_R
A_IN_N_R
R-CH
R-CH
MIX AMP
IC902
LINE AMP
IC901
MUTING
Q341
Q
BT-MUTE
R-CH
R
BT-L
S
BT OUT-L
: AUDIO
: BLUETOOTH OUT
: BLUETOOTH IN
UART_RXD
UART_TXD
UART_TXD
UART_CTS
UART_RTS
PIO_00
RESET
BT UART RXD
BT UART TXD
BT UART CTS
BT UART TXD
BT UART CTS
BT UART RTS
BT AV ROLE
BT AV ROLE
BT_RESET
(Page 32)
(Page 32)
(Page 32)
(Page 32)
(Page 30)
(Page 32)
(Page 33)
(Page 32)
(Page 32)
HCD-AZ77DBT
HCD-AZ77DBT
32
32
7-3. BLOCK DIAGRAM - AUDIO Section -
B
FL, FR, SL, SR,
FC, SW, LT, RT
FC, SW, LT, RT
MUTING
Q270
MUTING
Q271
MUTING
Q272
MUTING
Q273
F
PB-L
H
MIC SIGNAL
RT
FL
FR
LT
R-CH
R-CH
64
65
E
ST-L
D
MUSIC L+R
R-CH
J101 (1/2)
VIDEO/SAT
IN
L
R
62
61
SELECT
OR
TONE
63
42
41
37
7
59
56
53
52
51
+
R-CH
+
R-CH
BASS
BOOST
31
30
29
40
39
38
MUTING CONTROL
SWITCH
Q263
P_AMPIC_DA
TA
71
P_AMPIC_CLK
72
P_A_MUTE
77
P_V
ACS
89
J701
2
3
1
4
R-CH
R-CH
R-CH
FEED BACK
SWITCH
Q101
R-CH
I/F
MCU
34
35
P_RECOUT_MUTING 46
MUTING
Q141
MUTING
CONTROL
SWITCH
Q171
FL, SL, FC, SW
K
REC-L
G
FEED BACK
J
J101 (2/2)
R-CH
VIDEO/SAT
OUT
L
R
SYSTEM CONTROLLER
IC401 (3/5)
INPUT SELECT SWITCH,TONE CONTROL,
ELECTRICAL VOLUME, BASS BOOST AMP
IC101 (2/2)
• SIGNAL PATH
: REC
: VIDEO/SAT OUT
: VIDEO/SAT OUT
: VIDEO/SAT IN
: TAPE PLAY
: TUNER (FM/AM)
: AUDIO
• R-ch is omitted due to same as L-ch.
: MIC INPUT
A+9V
33
74
A+4.5V
D181
R-CH
IND2
INC2
INB2
TAPE_IN2
INA2
INC2
INB2
TAPE_IN2
INA2
REF_OUT
LPFIN
VCC
MIC
DPL_IN2
SAOUT2
DA
TA
CLOCK
RECA2
SAOUT1
RECB2
TONE_
OUT2
SWOUT
LPFOUT
OUT2
BB12
BB22
BB32
VOL_
IN2
IN2
+
D-LIGHT
SYNC OUT
BUFFER
Q702
REGULATOR
Q701
DLS+9V
(E3, Thai)
AUDIO
N
P_O_DVD_POWER 48
REG_SW
P
MUTING
Q201
MUTING
CONTROL
SWITCH
Q262
R-CH
12 X0
13 X1
5 Z0
3 Z1
11 10 9
X-X1
Y-Y1
Z-Z1
14
X
4
Z
SL
SR
SW
AUDIO SELECT
IC261
AUDIO SELECT CONTROL
Q260, 261
P_LINK_SW
76
P_LINK_LFE_SW
45
FC
MUTING
Q274
MUTING
Q275
MUTING
Q276
MUTING
Q277
R-CH
FC
SW
SL
FL
R
BT-L
BT OUT-L
S
• Abbreviation
E3: 240V AC area in E model
(Page 31)
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(Page 31)
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