Sony DHC-AZ2D / DHC-AZ5D / HCD-AZ2D / HCD-AZ5D Service Manual ▷ View online
25
HCD-AZ2D/AZ5D
SECTION 5
MECHANICAL ADJUSTMENTS
SECTION 6
ELECTRICAL ADJUSTMENTS
PRECAUTION
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head
pinch roller
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head
demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to
4. After the adjustments, appiy suitable locking compound to
the parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
• Torque Measurement
Mode
Torque Meter
Meter Reading
3.06 N
⋅m to 6.96 N⋅m
FWD
CQ-102C
31 to 71 g
⋅cm
(0.43 – 0.98 oz
⋅inch)
FWD
0.19 N
⋅m to 0.58 N⋅m
Back Tension
CQ-102C
2 to 6 g
⋅cm
(0.02 – 0.08 oz
⋅inch)
3.06 N
⋅m to 6.96 N⋅m
REV
CQ-102RC
31 to 71 g
⋅cm
(0.43 – 0.98 oz
⋅inch)
REV
0.19 N
⋅m to 0.58 N⋅m
Back Tension
CQ-102RC
2 to 6 g
⋅cm
(0.02 – 0.08 oz
⋅inch)
6.96 N
⋅m to14.02 N⋅m
FF/REW
CQ-201B
71 to 143 g
⋅cm
(0.98 – 1.99 oz
⋅inch)
9.80 N
⋅m
FWD Tension
CQ-403A
100 g or more
(3.53 oz or more)
9.80 N
⋅m
REV Tension
CQ-403R
100 g or more
(3.53 oz or more)
0 dB=0.775 V
DECK SECTION
Procedure:
1. Mode: Playback
2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
so that outputs match within 1dB of peak.
so that outputs match within 1dB of peak.
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
3. After the adjustments, apply suitable locking compound to the
3. After the adjustments, apply suitable locking compound to the
parts adjust.
TEST Tape
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Note: Perform this adjustments for both decks.
Tape
Signal
Used for
P-4-A063
6.3 kHz, -10 dB
Azimuth Adjustment
DECK–A
DECK–B
set
MAIN board
VIDEO/SAT OUT
jack (J101)
VIDEO/SAT OUT
jack (J101)
+
–
–
level meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
Screw
position
position
L-CH
peak
peak
within
1dB
1dB
Output
level
level
L-CH
peak
peak
R-CH
peak
peak
within
1dB
1dB
Screw
position
position
R-CH
peak
peak
26
HCD-AZ2D/AZ5D
3. Mode: Playback
4. After the adjustments, apply suitable locking compound to
the pats adjusted.
Adjustment Location: Playback Head (DECK-A)
Record/Playback/Erase Head (DECK-B)
RFMON LEVEL CHECK
Procedure :
1. Connect the oscilloscope to CN105 pin 6 (RFMON) and
CN105 pin 3 (GND) on the DMB10 board.
2. Press the `/1 button to turn the power on.
3. Insert the test disc (DVD: TDV-520CSO (Part No. J-2501-
3. Insert the test disc (DVD: TDV-520CSO (Part No. J-2501-
236-A), CD: LUV-P01 (Part No. 4-999-032-01) and touch the
Y sensor to playback.
Y sensor to playback.
4. Confirm that oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (
A good eye pattern means that the diamond shape (
◊) in the
center of the waveform can be clearly distinguished.
Checking Location:
DVD SECTION
set
test tape
P-4-A063
(6.3 kHz, –10 dB)
P-4-A063
(6.3 kHz, –10 dB)
oscilloscope
V
H
waveform of oscilloscope
in phase 45
°
90
°
135
°
180
°
good
wrong
MAIN board
VIDEO/SAT OUT
jack (J101)
VIDEO/SAT OUT
jack (J101)
reverse
forward
forward
+
–
–
DMB10 board
CN105 pin
6
(RFMON)
CN105 pin
3
(GND)
oscilloscope
(DC range)
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
TIME/DIV: 500 ns
level:
0.8
0.8
±
0.2 Vp-p (DVD)
0.8
±
0.2 Vp-p (CD)
IC102
– DMB10 BOARD (Side A) –
IC201
CN105
1
6
27
27
HCD-AZ2D/AZ5D
HCD-AZ2D/AZ5D
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – RF SERVO/VIDEO SECTION –
FLASH ROM
IC101
DQ0 – DQ7
AD0 – AD7
A-1, A0 – A20
IOA0 – IOA21
DIGITAL OPTICAL
TRANSCEIVER
IC231
D/A CONVERTER
IC301
OPTICAL PICK-UP
BLOCK
(KHM-310CAB)
RF AMP, SERVO DSP,
MPEG DECODER
IC102
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED/LOADING MOTOR DRIVE
IC201
AUTOMATIC POWER
CONTROL (FOR CD)
Q102-1
DVDRF IP
6
MA
8
MB
9
MC
10
MD
11
RF
DVDA
2
SDTI1
14
DVDB
3
DVDC
4
DVDD
5
VOA/A
VOB/B
VOC/C
VOD/D
TNI
18
VOE/E+G
TPI
19
VOF/F+H
V20
29
VC
LDO1
23
LD (780)
AUTOMATIC POWER
CONTROL (FOR DVD)
Q102-2
LDO2
22
LD (650)
FOO
42
CD ON
SWITCH
Q101-1
DVD ON
SWITCH
SWITCH
Q101-2
VR (780)
MSW
LIMSW
187
VR (650)
FCS+
MSW
MDI1
20
MDI2
21
PD
176
LIMIT
Q103
DVD
DIGITAL
OUT
IOCS
CE
SD-RAM
IC104
X101
27MHz
S003
(TRIGGER)
FL
FR
A
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
42
46
47
13
SPFG
47
REV
185
FWD
186
45
TROPENPWM
39
ASDATA0 217
LOUT1+ 2
LOUT1– 1
ROUT1+ 48
ROUT1– 47
MCLK
ACLK
10
ACLK 215
BICK
9
ABCK 214
LRCK
17
ALRCK 213
SDA
20
SDA 103
SPDATA 209
SCL
19
SCL 102
PDN
8
XRST 220
SPDIF 225
XTALI
229
TRG-SW
104
XTALO
228
EEPROM
IC103
SDA
6
SCL
5
MIC 205
MIX AMP
IC3711
SDTI2
15
SL
SR
ASDATA1 218
LOUT2+ 46
LOUT2– 45
ROUT2+ 44
43
ROUT2–
MIX AMP
IC3731
SDTI3
16
FC
SW
ASDATA2 219
LOUT3+ 42
LOUT3– 41
ROUT3+ 40
39
ROUT3–
MIX AMP
IC3751
SDTI4
13
LT
RT
ASDATA4 222
LOUT4+ 38
LOUT4– 37
ROUT4+ 33
32
ROUT4–
MIX AMP
IC3771
FL, FR, SL, SR, FC, SW, LT, RT
C
MIC
B
SPDATA, ACLK, ABCK, ALRCK
81 – 84,
86 – 88, 91
29, 31, 33, 35,
38, 40, 42, 44
93, 78, 53 – 59, 75, 74,
72 – 67, 92, 60, 61, 76, 89
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
125 – 123, 121, 120, 118, 117,
115, 135, 133 – 128, 126
147, 149 – 151, 166 – 164,
162, 160, 159, 146, 158
23 – 26,
29 – 34, 22, 35
77
26
IOOE
OE
79
28
IOWR
WE
66
11
BA0
BA0
143
20
BA1
BA1
145
21
RCLK
CLK
156
38
CKE
CKE
157
37
DQM0
LDQM
113
15
DQM1
UDQM
137
39
RAS
/RAS
140
18
CAS
/CAS
139
17
RCS
/CS
142
19
RWE
/WE
138
WIDE
171
16
• SIGNAL PATH
: CD PLAY
: DVD PLAY
: AUDIO
: VIDEO
: Y
: CHROMA
: COMPONENT VIDEO
FOCUS
COIL DRIVE
TRACKING
COIL DRIVE
SLED
MOTOR DRIVE
SPINDLE
MOTOR DRIVE
REGULATOR
25
24
16
17
MUTE123
MUTE12
184
19
MUTE
MUTE34
183
20
TSDM
TSD-M
181
22
IOPMON
40
40
8
MUTE5 21
15
LOADING
MOTOR DRIVE
BUFFER
BUFFER
M
M001
(LOADING)
RF+3.3V
SW+5V
S002
(CHUCKING)
CKSW
179
S001
(DISC IN/OUT)
OCKSW
177
REGO2
REGO1
P_I_DVD_SI
IFSDO
32
19
98
P_I_DVD_XIFCS
IXFCS
26
100
P_I_MREQ
MREQ
25
114
P_I_KRMOD
KRMOD
27
207
P_O_DVD_SO
IFSDI
31
101
PI_DVD_SCK
IFCK
33
99
P_O_DVD_BUSY
IFBSY
28
105
P_ID_IO_SYSRST
PRST
34
P_VIDEO_MUTE
23
110
SWITCH
Q2001
SWITCH
Q464
P_DVD_I_MTK
_SLOT_IN
_SLOT_IN
SYSTEM
CONTROLLER
IC401 (1/5)
CENTER VOLTAGE
GENERATOR
Q3801
ABCK
ALRCK
SPDATA
VIDEO OUT
J1202
S VIDEO OUT
J1201
196
YUV2
194
YUV1
198
YUV3
DSEL
188
J1203
COMPONENT
VIDEO OUT
Y
P
B
/C
B
P
R
/C
R
202
YUV5
202
YUV4
203
YUV6
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
: DIGITAL OUT
(AZ2D)
(AZ5D)
(AZ5D)
(AZ5D)
(Page 29)
(Page 29)
(Page 29)
28
28
HCD-AZ2D/AZ5D
HCD-AZ2D/AZ5D
7-2. BLOCK DIAGRAM – TUNER/TAPE SECTION –
T301
BIAS OSC
BIAS OSC
Q318
REC BIAS
SWITCH
Q316, 317
A+9V
R-CH
TUNER UNIT
AM
FM ANT
AM ANT
ST-L
ST-R
STDOUT
TUNED
STDIN
STCLK
STCE
FM 75
Ω
COAXIAL
ANTENNA
HRPE301
(REC/PB/ERASE)
(DECK-B)
HP301
(PB)
(DECK-A)
L-CH
L-CH
R-CH
R-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
11
10
9
8
67
66
DECK A/B SELECT SWITCH,
REC/PB EQ AMP
IC101 (1/2)
AMS
AMS DETECT
Q341 – 343
AMS MUTING
Q140, 363
A CAPM+
M
TAPE MECHANISM
DECK BLOCK
A PLAY
A TRGM+
B PLAY
A SHUT
B SHUT
A HALF
B HALF
F-REC
R-REC
(DECK-A)
B TRGM+
(DECK-B)
41 ST-CE
39 ST-CLK
38 ST-DOUT
40 ST-DIN
37 ST TUNED
75 TC AMS IN
70 TC LINE MUTE
44 P_TC_AMS_MUTE
22 TC A PLAY SW
68 TC PB/REC
69 TC REC MUTE
67 TC BIAS
80 TC B PLAY SW
97 TAPE A SHUT
90 TAPE B SHUT
21 TC A HALF
91 TAPE B HALF/REC
36 TC A TRG
79 TC B TRG
35 TC A CAPM
D
ST-L
F
REC-L
E
PB-L
MUTING
Q103
R-CH
MUTING CONTROL
SWITCH
Q362
TRIGGER PLUNGER
DRIVE (DECK-A)
Q323, 324
TRIGGER PLUNGER
DRIVE (DECK-B)
Q321, 322
CAPSTAN/REEL
MOTOR DRIVE (DECK-A)
Q326, 327
B CAPM+
M
78 TC B CAPM
CAPSTAN/REEL
MOTOR DRIVE (DECK-B)
Q328, 329
SYSTEM CONTROLLER
IC401 (2/5)
• SIGNAL PATH
: TAPE PLAY (DECK-B)
: REC
: TAPE PLAY (DECK-A)
: TUNER (FM/AM)
• R-ch is omitted due to same as L-ch.
BIAS
TRAP
C306, L301
CAPSTAN/REEL
(DECK-A)
CAPSTAN/REEL
(DECK-B)
(Page 29)
(Page 29)
(Page 29)
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