Sony HCDAZ-1-D Service manual

HCD-AZ1D
SERVICE MANUAL
Ver. 1.0 2006.05
HCD-AZ1D is the Amplifier, DVD player, Tape Deck and Tuner section in DHC-AZ1D.
This system incorporates Dolby1) Digital and DTS2) Digital Surround System.
1)
Manufactured under license from Dolby Laboratories. “Dolby” and the double-D symbol are trademarks of Dolby Laboratories.
2)
Manufactured under license from Digital Theater Systems, Inc. “DTS” and “DTS 2.0 + Digital Out” are trademarks of Digital Theater Systems, Inc.
DVD Section
TAPE Model Name Using Similar Mechanism HCD-DV2D Section T ape Transport Mechanism Type CMAL5Z220C
E Model
Model Name Using Similar Mechanism NEW DVD Mechanism Type WXD Optical Pick-up Name DM3451-A (SF-HD65F)
Amplifier section
The following measured at AC 120 V, 240 V, 50/60 Hz DIN power output (rated): 40 + 40 watts
Continuous RMS power output (reference):
Inputs TV IN (phono jacks): voltage 1 V, impedance
AUDIO IN (stereo mini jack):
MIC (phone jack): sensitivity 1 mV,
Outputs VIDEO OUT (phono jack): max. output level 1 Vp-p,
COMPONENT VIDEO OUT:
(6 ohms at 1 kHz, DIN)
50 + 50 watts (6 ohms at 1 kHz, 10% THD)
47 kilohms
voltage 1 V, impedance 47 kilohms
impedance 10 kilohms
unbalanced, Sync negative, load impedance 75 ohms
Y: 1 Vp-p, 75 ohms
B
, PR: 0.7 Vp-p, 75 ohms
P
SPECIFICATIONS
DIGITAL OUT (OPTICAL) (Square optical connector jack, rear panel) Wavelength 660 nm PHONES (stereo mini jack):
SPEAKER: accepts impedance of
Disc player section
System Compact disc and dig it a l
Laser Semiconductor laser
Frequency response DVD (PCM 48 kHz):
Video color system format
accepts headphones of 8ohms or more
6ohms
audio and video system
(DVD: λ=650 nm, CD: λ=790 nm) Emission duration: continuous
2 Hz – 22 kHz (±1 dB) CD: 2 Hz – 20 kHz (±1 dB)
NTSC, PAL
Tape deck section
Recording system 4-track 2-channel stereo Frequency response 40 – 13,000 Hz, using
Sony TYPE I cassette
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz
(50 kHz step) Antenna FM lead antenna Antenna terminals 75 ohms unbalanced Intermediate frequency 10.7 MHz
AM tuner section
Tuning range 530 – 1,710 kHz
(with the tuning interval
set at 10 kHz)
531 – 1,602 kHz
(with the tuning interval
set at 9 kHz) Antenna AM loop antenna Antenna terminals External antenna terminal Intermediate frequency 450 kHz
— Continued on next page —
9-887-243-01
2006E1678-1 © 2006.05
DVD DECK RECEIVER
Sony Corporation
Home Audio Division Published by Sony Techno Create Corporation
HCD-AZ1D
General
Power requirements 110 – 120 V, 220 – 240 V
Power consumption Dimensions (w/h/d) (excl. speakers)
Mass (excl. speakers) Approx. 6.1 kg
Design and specifications are subject to change without notice.
AC, 50/60 Hz Adjustable with voltage selector 120 watts
Approx. 190 × 300 × 335 mm
Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.
This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.
CAUTION
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
Notes on chip component replacement
Never reuse a disconnected chip component.
Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing
Keep the temperature of the soldering iron around 270 °C during repairing.
Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).
Be careful not to apply force on the conductor when soldering or unsoldering.
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead­free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C. Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
Strong viscosity Unleaded solder is more viscou-s (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.
Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
2

TABLE OF CONTENTS

HCD-AZ1D
1. SERVICING NOTES ................................................ 4
2. GENERAL ................................................................... 7
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 10
3-2. Top Cover, DC Fan.......................................................... 11
3-3. AMP Board, AV Board, Tuner (FM/AM) ....................... 11
3-4. MPEG Board ................................................................... 12
3-5. MPEG Holder.................................................................. 12
3-6. DVD Panel Tray .............................................................. 13
3-7. DVD Loader (WXD)....................................................... 13
3-8. Optical Pick-up DM3451-A (SF-HD65F)....................... 14
3-9. Front Panel Section ......................................................... 14
3-10. Cassette Mechanism Deck (CMAL5Z220C) .................. 15
3-11. KEY Board ...................................................................... 15
3-12. HP Board, MIC CONTROL Board ................................. 16
3-13. MAIN Board.................................................................... 16
3-14. POWER Board ................................................................ 17
3-15. Panel Cass........................................................................ 17
4. TEST MODE ............................................................... 18
5. MECHANICAL ADJUSTMENTS......................... 19
6. ELECTRICAL ADJUSTMENTS .......................... 19
7. DIAGRAMS
7-1. Block Diagram — MPEG-1 Section — ......................... 22
7-2. Block Diagram — MPEG-2 Section — ......................... 23
7-3. Block Diagram — USB Section —................................ 24
7-4. Block Diagram — AUDIO Section — ........................... 25
7-5. Block Diagram — PANEL/POWER Section — ............ 26
7-6. Printed Wiring Board — MAIN Section — ................... 27
7-7. Schematic Diagram — MAIN Section (1/4) —............. 28
7-8. Schematic Diagram — MAIN Section (2/4) —............. 29
7-9. Schematic Diagram — MAIN Section (3/4) —............. 30
7-10. Schematic Diagram — MAIN Section (4/4) — ............. 31
7-11. Printed Wiring Board — MPEG Section (Side A) — .... 32
7-12. Printed Wiring Board — MPEG Section (Side B) — .... 33
7-13. Schematic Diagram — MPEG Section (1/3) — ............ 34
7-14. Schematic Diagram — MPEG Section (2/3) — ............ 35
7-15. Schematic Diagram — MPEG Section (3/3) — ............ 36
7-16. Printed Wiring Boards — KEY Section —.................... 37
7-17. Schematic Diagram — KEY Section — ........................ 38
7-18. Schematic Diagram — MIC CONTROL Section — ..... 39
7-19. Printed Wiring Board — AV Section — ......................... 40
7-20. Schematic Diagram — AV Section — ........................... 40
7-21. Printed Wiring Board — AMP Section — ..................... 41
7-22. Schematic Diagram — AMP Section — ........................ 42
7-23. Printed Wiring Board — POWER Section —................ 43
7-24. Schematic Diagram — POWER Section — .................. 44
8. EXPLODED VIEWS
8-1. Overall Section ................................................................ 55
8-2. Front Panel Section ......................................................... 56
8-3. Chassis Section................................................................ 57
8-4. DVD Mechanism Deck Section ...................................... 58
9. ELECTRICAL PARTS LIST .................................. 59
3
HCD-AZ1D
SECTION 1

SERVICING NOTES

NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic break-down because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick­up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.
DISC TRA Y LOCK
The disc tray lock function for the antitheft of an demonstration disc in the store is equipped.
Procedure :
1. Press the ?/1 button to turn the set ON.
2. Press the DVD u button to select “DVD”
3. Set disc on the tray, press the x button and the Z button simultaneously for five seconds.
4. The message “LOCKED” is displayed the tray is locked.
5. To release from this mode, press the x button and the Z button simultaneously for five seconds again.
6. The message “UNLOCKED” is displayed and the tray is unlocked.
Note: When “LOCKED” is displayed, the slot lock is not released by
turning power on/off with the ?/1 button.
MODEL IDENTIFICATION – Rear Panel –
Parts No.
Model Part No.
E3 model 2-672-998-0[] SP model 2-673-001-0[]
•Abbreviation E3 : 240 V AC Area in E model. SP : Singapore model.
• SERVICE POSITION OF THE TAPE CASSETTE MECHANISM DECK
MAIN board
Front Panel
Tape Cassette Mechanism Deck (CMAL5Z220C)
4
• HOW TO OPEN THE DVD TRAY MANUALLY
Insert the stiff wire in the hole. The lock is released and the DVD tray opens.
DVD tray
hole
HCD-AZ1D
stiff wire
• SERVICE POSITION OF THE DVD MECHANISM DECK
MPEG board
DVD mechanism deck
Draw out the flexible board of the DVD mechanism deck from this position.
5
HCD-AZ1D
• CAUTION ON HANDLING POWER CORD (SAFETY STANDARD)
When you remove or replace the power cord, (1) Fix the power cord to the POWER board with a binding strap as before. (2) Check that the single-sheathed portion of the power cord does not contact the transformer even when the single-sheathed portion is pushed toward the transformer with a 200-g force.
single-sheathed portion of the power cord
power transformer
6
SECTION 2

GENERAL

List of button locations and reference pages
HCD-AZ1D
This section is extracted from instruction manual.
How to use this page
Use this page to find the location of buttons and other parts of the system that are mentioned in the text.
Main unit
ALPHABETICAL ORDER
A – O P – Z
AUDIO IN jack qg (31, 42, 43) Cassette compartment qh (30) CD SYNC 9 (30) Disc tray 4 (13) DISPLAY 3 (36, 37, 38) Display window 2 MIC jack qf (32) MIC LEVEL qd (32)
PC/TV/AUDIO IN ql (31, 40,
43) PHONES jack qj PLAY MODE ws (14, 18, 49) PRESET EQ wa (32) PROGRESSIVE w; (23) Remote sensor wg TUNER/BAND qa (27, 28, 31) TUNING + 7 (27, 29) TUNING – wd (27, 29) VOLUME +/– qk (14, 29, 30, 40,
43)
Illustration number
r
TUNER/BAND qa (27, 28, 31)
RR
Name of button/part Reference page
BUTTON DESCRIPTIONS
?/1 (on/standby) 1 (10, 40, 49) Z (open/close) 5 (13)
DVD NX (play/pause) 6 (13,
31, 44, 49)
> (go forward) 7 (14, 31) x (stop) 8 (11, 14, 23, 28, 30,
33, 44, 49)
z REC PAUSE/START (record)
q; (30, 33)
Z PUSH OPEN/CLOSE (eject)
qs (30) . (go back) wd (14, 31) TAPE N (play) wf (30)
wg wf wd ws wa w; ql
qk
qj
12
3
4 5
6 7 8 9 0 qa qs
qd qf qg qh
7
HCD-AZ1D
Remote control
ALPHABETICAL ORDER
A – O
ANGLE 5 (21) AUDIO 4 (20, 32) CLEAR ef (18, 19, 24) CLOCK/TIMER SELECT w;
(35, 36)
CLOCK/TIMER SET w; (12, 34,
35) DIMMER ej (36) DISPLAY qj (36, 37, 38) DVD eh (11, 12, 13, 16, 18, 23,
25, 30, 44)
ENTER qs wg (12, 15, 16, 18, 19,
21, 22, 24, 27, 34, 35, 43, 49) FM MODE eg (29) FUNCTION +/– 2 (11, 12, 13,
16, 18, 23, 25, 30, 44) MENU 6 (15, 16) MUTING wh (14, 29, 30) Number buttons* qf (15, 16, 18,
19, 24, 41)
P – Z
PLAY MODE qg (14, 18) PRESET + wk (27, 28) PRESET – es (27, 28) PRESET EQ wf (32) REPEAT eg (17) SEARCH 3 (19) SLEEP qk (34) SUBTITLE wd (21) TAPE qh (30) THEATRE SYNC ql (41) TOP MENU qd (15) TUNER/BAND wa (27, 28) TUNER MEMORY ws (27) TUNING + 9 (27, 29) TUNING – qa (27, 29) TV e; (40) TV CH + wk (40, 41) TV CH – es (40) TV/VIDEO qk (40, 41) TV VOL +/–* 7 (40) VOLUME +/–* 7 (14, 29, 30,
34)
BUTTON DESCRIPTIONS
?/1 (on/standby) 1 (10, 34, 49) TV ?/1 1 (40)
SLOW/SLOW y 8 (14)
M (fast forward) 9 (14, 30) X (pause) 0 (14) m (rewind) qa (14, 30)
M/m/</, qs (12, 14, 21, 43,
49) DISPLAY wj (12, 21, 43, 49)
> (forward) wk (12, 14, 31, 34) x (stop) wl (11, 14, 23, 30, 44) H (play)* ea (13, 30, 44) . (go back) es (12, 14, 31, 34) O RETURN ed (16)
-/-- ef *The H, number 5 and
VOLUME + (TV VOL +) buttons have tac tile dots. Use the tactile dots as references when operating the system .
8
Setting the clock
Use buttons on the remote for the operation.
1
Press ?/1 to turn on the system.
2
Press CLOCK/TIMER SET.
3
Press . or > repeatedly to set the hour.
4
Press ENTER.
5
Press . or > repeatedly to set the minute.
6
Press ENTER.
The clock start s working.
To adjust the clock
1
Press CLOCK/TIMER SET.
2
Press . or > to select “CLOCK SET,” then press ENTER.
3
Do the same procedures as step 3 to 6 above.
HCD-AZ1D
Notes
•The clock settings are canceled when you disconnect the power cord or if a power failure occurs.
•You cannot set the clock in Power Saving Mode (page 36).
9
HCD-AZ1D

3-1. DISASSEMBLY FLOW

•This set can be disassembled in the order shown below.
SET
SECTION 3

DISASSEMBLY

3-2. TOP COVER, DC FAN
(Page 11)
3-3. AMP BOARD, AV BOARD,
TUNER (FM/AM)
(Page 11)
3-4. MPEG BOARD
(Page 12)
3-5. MPEG HOLDER
(Page 12)
3-6. DVD PANEL TRAY
(Page 13)
3-7. DVD LOADER (WXD)
(Page 13)
3-15. PANEL CASS
(Page 17)
3-9. FRONT PANEL SECTION
(Page 14)
3-13. MAIN BOARD
(Page 16)
3-14. POWER BOARD
(Page 17)
3-8. OPTICAL PICK-UP DM3451-A (SF-HD65F)
(Page 14)
3-10. CASSETTE MECHANISM DECK
(CMAL5Z220C)
(Page 15)
3-11. KEY BOARD
(Page 15)
3-12. HP BOARD,
MIC CONTROL BOARD
(Page 16)
10
Note: Follow the disassembly procedure in the numerical order given.

3-2. TOP COVER, DC FAN

7
top cover
4
s
crew
(screw 3
3
s
(screw 3
crew
×
10)
×
6)
a
b
5
five s
(screw 3
2
s
crew
(screw 3
8
3P (CN350)
crews
×
6)
×
10)
connector
HCD-AZ1D
qa
four s
crew
crews
×
8)
×
8)
q;
two s
crews
×
(screw 3
8)
(screw 3
9
s
(screw 3
qd
DC fan
6
1
s
crew
×
(screw 3
6)

3-3. AMP BOARD, AV BOARD, TUNER (FM/AM)

0
two s
(screw 3
qf
qg
AV board
four s
(screw 3
crews
crews
×
a
b
×
8)
5
3P (CN106)
10)
4
connector
7P (CN102)
connector
qs
cover heat sink
1
two s
(screw 3
3
connector
10P (CN108)
crews
×
10)
qa
s
crew
(screw 3
qd
wire (flat type)
16core (CN801A)
×
8)
qs
earth wire
ql
two claws
qk
tuner
w;
rear panel
qj
wire (flat type)
9core
9
(screw 3
8
two s
(screw 3
qh
two s
(screw 3
crews
2
(screw 3
7
AMP board
6
connector
5P (CN101)
three s
crews
×
10)
crews
×
8)
×
8)
two s
crews
×
10)
11
HCD-AZ1D

3-4. MPEG BOARD

7
two s
(screw 3
2
connector
5P (CN9)
1
connector
6P (CN10)
3
wire (flat type)
24core (CN7)
crews
×
8)
4
wire (flat type)
16core (CN2)
9
8
MPEG board
connector
5
9P (CN3)
6
wire (flat type)
12core (CN1)

3-5. MPEG HOLDER

1
s
crew
(screw 3
5
two s
crews
(screw 2.6
3
MPEG holder
×
8)
2
two hooks
×
8)
4
(screw 2.6
6
holder
two s
crews
×
8)
12

3-6. DVD PANEL TRAY

3
two
HCD-AZ1D
claws
2
4
DVD panel tray

3-7. DVD LOADER (WXD)

5
(screw 3
7
DVD loader (WXD)
two s
crews
× 10
1
stiff wire
6
two s
crews
)
(screw 3
8
two s
(screw 3
× 10
crews
×
)
10)
2
two s
(screw 3
crews
q;
DVD holder
× 10
9
two rear mecha holders
)
4
3
two dowels
1
s
crew
(screw 3
×
10)
13
HCD-AZ1D

3-8. OPTICAL PICK-UP DM3451-A (SF-HD65F)

qa
optical pick-up
DM3451-A
9
two dumpers (traverse mech)
8
holder (traverse mech)
3
belt (pulley)
1
Turn round the gear in the direction of the arrow.
7
(SF-HD65F)
6
4
two screws
5
two dumpers (traverse mech)
q;
w
24core
ire (flat type)
2

3-9. FRONT PANEL SECTION

6
screw (screw 3
×
8)
5
1
wire (flat type)
21core (CN501)
screw (screw 3
2
connector
3P (CN202)
×
8)
qa
3
connector
8P (CN201)
claw
4
connector
3P (CN104)
q;
claw
8
screw (screw 3
×
8)
14
9
screw (screw 3
×
10)
qs
front panel section
7
screw (screw 3
×
8)

3-10. CASSETTE MECHANISM DECK (CMAL5Z220C)

1
wire (flat type)
7core
4
cover cass deck DV2D
HCD-AZ1D

3-11. KEY BOARD

5
cassette mechanism deck
(CMAL5Z220C)
4
7core (CN602)
w
ire (flat type)
3
coating clip
2
four screws (screw 3
×
10)
3
ten screws (screw 2.6 × 8)
5
w
ire (flat type)
21core (CN601)
6
KEY board
2
holder mecha front
1
four screws (screw 3 × 10)
15
HCD-AZ1D

3-12. HP BOARD, MIC CONTROL BOARD

2
HP board
1
two screws (screw 2.6
×
8)

3-13. MAIN BOARD

4
mic knob
7
21core (CN501)
5
MIC CONTROL board
wire (flat type)
3
three screws (screw 2.6 × 8)
5
wire (flat type)
12core (CN503)
4
connector
3P (CN202)
6
connector
3P (CN104)
8
MAIN board
16
2
connector
11P (FW901)
3
connector
8P (CN201)
1
two s
(screw 3
crews
×
10)
2
four screws (screw 4
×
8)
4
coating clip
3
coating clip
9
power transformer
q;
POWER board
8
Remove the
solderings.
6
clamp
7
power cord
5
bushing cord
1
connector
11P (FW901)

3-14. POWER BOARD

HCD-AZ1D

3-15. PANEL CASS

2
1
4
panel cass, window cass
3
four claws
17
HCD-AZ1D
SECTION 4

TEST MODE

Note 1:Regarding the notification symbol “R”
Because the number of the operating buttons of this product are limited, some operations require use of the operating buttons of the remote commander. When a specific operation requires use of the operating buttons of the remote commander, “R” is added to the specific operating procedure in this manual. Example MENU/NO “R” The MENU/NO button of remote commander .
Note 2:Incorrect operations may be performed if the test mode is not
entered properly. In this case, press the ?/1 button to turn the power off, and retry to enter the test mode.
COLD RESET
• The cold reset clears all data including preset data stored in the RAM to initial conditions. Execute this mode when returning the set to the customers.
Procedure:
1. Press the ?/1 button to turn the set ON.
2. Press three buttons x , [PLAY MODE] and DVD u simul- taneously.
3. The message “COLD RESET” is displayed and the set is reset.
TUNER STEP CHANGE
•A step of AM channels can be changed over between 9 kHz and 10 kHz.
Procedure:
1. Press the ?/1 button to turn the set ON.
2. Select the function “TUNER”, and press [TUNER/BAND] button to select the BAND “AM”.
3. Press the ?/1 button to turn the set OFF.
4. Press the x and [TUNER/BAND] buttons simultaneously, and thus the channel step is changed over.
PANEL TEST MODE
•This mode is used to check the software version, FL, LED and KEY.
Procedure:
1. Press the ?/1 button to turn the set ON.
2. Press the DVD u button to select “DVD”
3. Press three buttons x , [PRESET EQ] and T APE N simul- taneously.
4. When the panel test mode is activated, all segments are turned on.
VERSION DISPLAY
•This mode is used check the model, destination, software version.
Procedure:
1. Press the ?/1 button to turn the set ON.
2. Press the DVD u button to select “DVD”
3. Press three buttons x , [PRESET EQ] and [TV] simultaneous- ly, the model and destination are displayed.
DVD COLOR SYSTEM CHANGE OVER
•The color system can be changed over NTSC or PAL.
Procedure:
1. Press the ?/1 button to turn the set ON.
2. Set the function to “DVD”.
3. Press the ?/1 button to turn the set OFF.
4. Press the x button and ?/1 button simultaneously . The set will power on automatically.
5. The message “COLOR PAL” or “COLOR NTSC” will be displayed on the fluorescent indicator tube. The color system is changed over.
SHIP RESET
Procedure:
1. Press the ?/1 button to turn the set ON.
2. Press the DVD u button to select “DVD”
3. Remove the disc.
4. The message “NO DISC” is displayed.
5. Press three buttons x , [PLAY MODE] and TAPE N si- multaneously.
6. The message “SHIP RESET” is displayed and the set is reset. The DVD function is activated.
7. To e xit from this mode, press the ?/1 button and pull out the AC plug.
DISC TRA Y LOCK
The disc tray lock function for the antitheft of an demonstration disc in the store is equipped.
Procedure :
1. Press the ?/1 button to turn the set ON.
2. Press the DVD u button to select “DVD”
3. Set disc on the tray, press the x button and the Z button simultaneously for five seconds.
4. The message “LOCKED” is displayed the tray is locked.
5. To release from this mode, press the x button and the Z button simultaneously for five seconds again.
6. The message “UNLOCKED” is displayed and the tray is unlocked.
Note: When “LOCKED” is displayed, the slot lock is not released by
turning power on/off with the ?/1 button.
CD REPEAT 5 TIMES LIMIT RELEASE MODE
Procedure:
1. Press the ?/1 button to turn the set ON.
2. Set the function to “DVD”.
3. Press three buttons x , Z , and DVD u simultaneously.
4. The repeat all mark blinks and then repeat 5 times limit is released.
18
SECTION 5

MECHANICAL ADJUSTMENTS

HCD-AZ1D
SECTION 6

ELECTRICAL ADJUSTMENTS

Precaution
1. Clean the following parts with a denatured alcohol-moistened swab:
record/playback heads pinch rollers 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, apply 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
FWD
FWD back tension
REV
REV back tension
FF/REW
FWD tension
REV tension
Torque meter Meter reading
2.94 – 7.84 mN • m
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
(31 to 71 g • cm)
(0.43 – 0.98 oz • inch)
0.15 – 0.59 mN • m (2 to 6 g • cm)
(0.02 – 0.08 oz • inch)
2.94 – 7.84 mN • m
(30 to 79 g • cm)
(0.42 – 1.11 oz • inch)
0.15 – 0.59 mN • m (2 to 6 g • cm)
(0.03 – 0.08 oz • inch)
6.86 – 17.64 mN • m (71 to 143 g • cm)
(0.98 – 2.49 oz • inch)
9.8 mN • m or more
(100 g • cm or more)
(1.4 oz • inch or more)
9.8 mN • m or more
(100 g • cm or more)
(1.4 oz • inch or more)
DECK SECTION 0 dB=0.775V
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 parts adjusted.
4. The adjustments should be performed with the rated power supply voltage unless otherwise noted.
5. The adjustments should be performed in the order given in this service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.)
6. The adjustments should be performed for both L-CH and R­CH.
7. Switches and controls should be set as follows unless otherwise specified.
Signal Used forTape
P-4-A100
WS-48B
[Record/Playback Head Azimuth Adjustment]
Procedure:
1. Mode : Playback
test tape P-4-A100 (10kHz, –10dB)
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 1 dB of peak.
10 kHz, –10 dB
3 kHz, 0 dB
MAIN board JK102 speaker terminal
set
Azimuth Adjustment
Tape Speed Adjustment
level meter
+ –
L-CH peak
screw position
R-CH peak
output level
within 1 dB
L-CH peak
R-CH peak
within 1dB
screw position
19
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