Sony HCDHP-7 Service manual

HCD-HP7
SERVICE MANUAL
Ver. 1.4 2005. 10
HCD-HP7 is the Amplifier, CD player, Tape Deck and Tuner section in CMT-HP7.
Model Name Using Similar Mechanism NEW
CD Section
TAPE Section
CD Mechanism Type CDM69CH-K6BD71C Base Unit Name BU-K6BD71C Optical Pick-up Name KSM-213D Model Name Using Similar Mechanism HCD-EP515 Tape Transport Mechanism T ype CMAL1Z234A
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Main unit
AUDIO POWER SPECIFICATIONS POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6 ohm loads, both channels driven, from 120 – 10,000 Hz: rated 60 watts per channel minimum RMS power, with no more than 10% total harmon ic d istorti on from 2 50 mil liw atts to rated output.
Amplifier section North American model:
Continuous RMS power output (reference):
60 + 60 watts (6 ohms at 1 kHz, 10% THD)
Total harmon ic distortion less than 0.7% (6 ohms at 1
kHz, 30 W)
European and Russian models:
DIN power output (rated): 60 + 60 watts (6 ohms at 1
kHz, DIN)
Continuous RMS power output (reference):
60 + 60 watts (6 ohms at 1 kHz, 10% THD)
Music power output (reference):
120 + 120 watts (6 ohms at 1 kHz, 10% THD)
SPECIFICATIONS
Other models:
The following measured at AC 120, 127, 220, 240 V 50/60 Hz DIN power output (rated): 60 + 60 watts (6 ohms at 1
kHz, DIN)
Continuous RMS power output (reference):
60 + 60 watts (6 ohms at 1 kHz, 10% THD)
Inputs MD IN (phono jacks):
Sensitivity 250 mV,
impedance 47 kilohms Outputs PHONES (stereo minijack):
accepts headphones of 8
ohms or more OPTICAL CD DIGITAL OUT (Supported sampling frequency: 44.1 k Hz ) SPEAKER: accepts impedance of 6 to
16 ohms.
CD player section
System Compact disc an d d ig ital
LaserSemiconductor laser
Frequency response 2 Hz – 20 kHz (±0.5 dB) Wavelength 780 – 790 nm Signal-to-noise ratio More than 9 0 dB Dynamic range More than 90 dB
Tape deck section
Recording sy stem 4-track 2-channel, stereo Frequency response 50 – 13,000 Hz (±3 dB),
audio system
(
λ
=780 nm) Emission duration: continuous
using Sony TYPE I cassettes
9-877-349-05
2005J16-1 © 2005.10
Sony Corporation
Personal Audio Group Published by Sony Engineering Corporation
HCD-HP7
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range Russian model: 65.0 – 74.0 MHz
(There is no stereo effect)
87.5 – 108.0 MHz Other models: 87.5 – 108.0 MHz Antenna FM lead antenna Antenna terminals 75 ohms unbalanced Intermediate frequen c y 10.7 MH z
AM tuner section
Tuning range Pan-American model: 530 – 1,710 kHz
(with the tuning interval set at 10 kHz) 531 – 1,710 kHz (with the tuning interval set at 9 kHz)
European, Russian, Midd le Eastern models:
531 – 1,602 kHz (with the tuning interval set at 9 kHz)
Other models: 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 frequen cy 450 kHz
General
Power requirements North American model: 120 V AC, 60 H z European and Russian models:
230 V AC, 50/60 Hz
Australian model: 230 – 240 V AC, 50/60 H z Mexican model: 120 V AC, 60 Hz Other models: 120 V, 220 V or 230 – 240
V AC, 50/60 Hz Adjustable with voltage selector
Power consumption European and Russian models:
100 watts
0.35 watts (at the Power Saving Mode)
Other models: 100 watts
Dimensions (w/h/d) Approx. 199 252 400
mm
Mass Approx. 7.0 kg
Supplied accessories: Remote Commander (1)
Batteries (2) AM loop antenna (1) FM lead antenna (1) Speaker pads (8)
Design and specifications are subject to change without notice.
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
ATTENTION AU COMPOSANT AY ANT RAPPORT
À LA SÉCURITÉ! LES COMPOSANTS IDENTIFÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMA TIQUES ET LA LISTE DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

TABLE OF CONTENTS

HCD-HP7
Ver 1.1 2003.11
1. SERVICING NOTES ·······················································4
2. GENERAL ·········································································· 6
3. DISASSEMBLY
3-1. Case (Side-L)(Side-R),
Tape Mechanism Deck (CMAL1Z234A) ······················ 9 3-2. Front Panel Section ······················································· 9 3-3. Panel Board ·································································10 3-4. Back Panel Section ······················································ 10 3-5. MAIN Board ······························································· 11 3-6. PWR AMP Board, Power Transformer ·······················11 3-7. CD Mechanism Deck (CDM69CH-K6BD71C) ··········12 3-8. Base Unit Section ························································ 12 3-9. Base Unit (BU-K6BD71C) ········································· 13 3-10.BD Board·····································································13 3-12.SW Board, Bracket (Top) Assy ··································· 14 3-13.CONNECTOR Board ··················································15 3-14.Motor (Stocker) Assy (Stocker)(M761) ······················ 15 3-15.Motor (Roller) Assy (Roller)(M781)··························· 16 3-16.Motor (Mode) Assy (Mode)(M771) ····························16 3-17.Rubber Roller (Slider) Assy ········································ 17 3-18.Timing Belt (Front/Rear)············································· 17 3-19.Cam (Gear) ·································································· 18 3-20.SENSOR Board ··························································· 18
4. ASSEMBLY
4-1. How to Install the Cam (Eject Lock) ···························· 18 4-2. How to Install the Cam (GEAR)··································· 18 4-3. How to Install the Gear (MODE C)······························ 19 4-4. How to Install the Gear (MODE CAM) ······················· 19 4-5. How to Install the Rotary Encoder (S702),
Gear (STOCKER COMMUNICATION) ····················· 20
4-6. How to Install the Stocker Assy···································· 20
5. TEST MODE···································································· 22
6. MECHANICAL ADJUSTMENTS ····························· 23
7. ELECTRICAL ADJUSTMENTS ······························· 24
8. DIAGRAMS······································································ 26
8-1. Block Diagram ···························································· 28 8-2. Printed Wiring Boards — BD Board —······················ 29 8-3. Schematic Diagram — BD Board — ·························· 30 8-4. Printed Wiring Boards — Changer Section — ··········· 31 8-5. Schematic Diagram — Changer Section —················ 32 8-6. Printed Wiring Boards — Main Section —················· 33 8-7. Schematic Diagram — Main Section —····················· 34 8-8. Printed Wiring Boards — Front Section — ················ 35 8-9. Schematic Diagram — Front Section —····················· 36 8-10.Printed Wiring Boards
— PWR AMP/Power Section —································· 37
8-11.Schematic Diagram
— PWR AMP/Power Section —································· 38 8-12.IC Block Diagrams ······················································ 39 8-13. IC Pin Function Description ······································· 42
9. EXPLODED VIEWS
9-1. Case, Top Panel Section ·············································· 44 9-2. Front Panel Section ····················································· 45 9-3. Chassis Section-1 ························································ 46 9-4. Chassis Section-2 ························································ 47 9-5. CD Mechanism Section-1 (CDM69CH-K6BD71C)··· 48 9-6. CD Mechanism Section-2 (CDM69CH-K6BD71C)··· 49 9-7. CD Mechanism Section-3 (CDM69CH-K6BD71C)··· 50 9-8. CD Mechanism Section-4 (CDM69CH-K6BD71C)··· 51 9-9. CD Mechanism Section-5 (CDM69CH-K6BD71C)··· 52 9-10.CD Mechanism Section-6 (CDM69CH-K6BD71C) ··· 53 9-11.Optical Pick-up Section (KSM-213D) ························ 54
10.ELECTRICAL PARTS LIST ······································· 55
3
HCD-HP7
r
SECTION 1

SERVICING NOTES

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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leaka ge from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes.). Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the v oltage drop across a resistor by means of a V OM
or battery-operated A C voltmeter . The “limit” indication is 0.75 V, so analog meters m ust have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)
To Exposed Metal Parts on Set
1.5 k
0.15 µF
Fig. A. Using an AC voltmeter to check AC leakage.
Earth Ground
AC voltmete (0.75 V)
CAUTION
Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.
This appliance is classified as a CLASS 1 LASER product. This label is located on the rear exterior.
Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.
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.
LASER DIODE AND FOCUS SEARCH OPERATION CHECK
Carry out the “S curve check” in “CD section adjustment” and check that the S curve waveforms is output three times.
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 viscous (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.
4
Service Position of the Tape Cassette Mec hanism Dec k
HCD-HP7
Service Position of the CD Mechanism Deck
Connect jig (extension cable J-2501-248-A) to the MAIN board (CN302) and CONNECTOR board (CN701).
Connect jig (extension cable J-2501-011-B) to the MAIN board (CN301) and BD board (CN710).
5
HCD-HP7
SECTION 2

GENERAL

List of button locations and reference pages
Main unit
ALPHABETICAL ORDER
A – G
CD SYNC 9 (1 7) DIMMER ql (23) DISC 1 – 5 qs (9, 10, 11, 29) Disc slot qf DISPLAY 6 (1 5 , 22, 23, 29) Display window 3 FUNCTION w; (9, 11, 16, 17, 25) GROOVE qj (18)
P – Z
PHONES jack qd PLAY MODE 7 (9, 11, 16, 17,
21) PRESET EQ qk (18) PRESET/ALBUM +/– wa (10,
11, 13, 14) REC PAUSE/START 0 (17 ) Remote sensor 2 REPEAT 8 (11) Tape deck 4 TUNER/BAND 5 (13, 14, 17) TUNING +/– qa (13, 14) VOLUME qh (20)
This section is extracted from instruction manual.
BUTTON DESCRIPTIONS
?/1 (power) 1 (7, 8, 14, 20, 21,
29)
m/M (rewind/fast forward)
qa (10, 16)
./> (go back/go forward)
qa (8, 10, 11, 16, 20, 21)
x (sto p) 5 (10, 16, 17, 21, 29) X (p ause) 5 (10, 16)
CD N (play) 5 (10, 12) TAPE nN (play) 5 (16, 17,
21)
DISC 1 Z – D ISC 5 Z (eject) qg
(9, 10)
6
Remote control
HCD-HP7
ALPHABETICAL ORDER
A – G
ALBUM +/– qf (10, 11) CD ql (9, 11, 17) CLEAR 5 (12) CLOCK/TIMER SELECT 2
(21, 22)
CLOCK/TIMER SET 3 (8, 20,
21) DISPLAY 6 (15, 22, 23, 29) D. SKIP 7 (10, 11) ENTER qh (8, 11, 13, 20, 21) GAME (MD)* GROOVE qd (18)
1
q; (17, 25)
I – Z
ILLUMINATION* PLAY MODE w; (9, 11, 16, 1 7,
21) PRESET EQ qj (18) PRESET +/– 5 (13, 14) REPEAT/FM MODE wa (11, 14) SLEEP 1 (20) SURROUND qa (19) TAPE A/B* TUNER BAND qk (13, 14, 17) TUNER MEMORY 8 (13) TUNING +/– 5 (13, 14) VOL +/– qs (20)
2
3
9 (16, 17)
qg
12 3 4
BUTTON DESCRIPTIONS
?/1 (power) 4 (7, 8, 20, 21, 29) m/M (rewind/fa st for w a rd)
5 (10, 16)
./> (go back/go forward)
5 (8, 10, 11, 16, 20, 21)
x (stop ) 5 (10, 16, 17, 21, 29) X (paus e) 5 (10, 16) N (play) 5 (10, 12, 16)
*1
This button is used to switch to MD function.
*2
This button cannot be used in this system.
*3
This button is used to switch to TA PE function.
5
wa
w; ql qk
qj qh
qg
6 7 8
9 q; qa qs
qd
qf
Setting the clock
Use buttons on the remote for the operation.
Press ?/1 to turn on the system.
1
Press CLOCK/TIMER SET.
2
Press ./> repeatedly to set the
3
hour. Press ENTER.
4
Press ./> repeatedly to set the
5
minute. Press ENTER.
6
The clock starts working.
To adjust the clock
1 Press CLOCK/TIMER SET.
Press ./> to select “CLOCK SET”,
2
then press ENTER. Do the same procedures as step 3 to 6
3
above.
Note
The clock settings are canceled when you disconnect the power cord or if a power failure occurs.
7
HCD-HP7
Ver 1.1 2003.11
• This set can be disassembled in the order shown below.
SET
CASE (SIDE-L) (SIDE-R), TAPE MECHANISM DECK (CMAL1Z234A))
SECTION 3

DISASSEMBLY

BACK PANEL SECTION
MAIN BOARD
PWR AMP BOARD, POWER TRANSFORMER
CD MECHANISM DECK (CDM69CH-K6BD71C)
BASE UNIT SECTION
BASE UNIT (BU-K6BD71C)
BD BOARD
FRONT PANEL SECTION
PANEL BOARD
SW BOARD, BRACKET (TOP) ASSY
MOTOR (ROLLER) ASSY (ROLLER) (M781)
MOTOR (STOCKER) ASSY (STOCKER) (M761)
RUBBER ROLLER (SLIDER) ASSY
TIMING BELT (FRONT/REAR)
CONNECTOR BOARD
MOTOR (MODE) ASSY (MODE) (M771)
CAM (GEAR)
SENSOR BOARD
8
Note: Follow the disassembly procedure in the numerical order given.
)

3-1. Case (Side-L)(Side-R), Tape Mechanism Deck (CMAL1Z234A)

8
top panel section
5
4
four screws
(case3 TP2)
6
case (side-L)
two screws
(BVTP3
×
16
)
9
connector
(6p)
7
two screws
(BVTP3
q;
w
ire (flat type) 8p
HCD-HP7
×
16
)
qd
tape mechanism deck
(CMAL1Z234A)
qs
shield plate (case)
qa
four screws
(BVTP2.6
2
two screws
(BVTP3
×
8)
×
16
)

3-2. Front Panel Section

6
front panel section
4
w
ire (flat type)
37p (CN402)
3
case (side-R)
2
w
ire (flat type)
9p (CN303)
1
screw
(BVTP3
1
four screws
(case3 TP2)
×
8
3
connector
(CN305)
5
two screws
(BVTP3
×
8)
9
HCD-HP7
)
)

3-3. Panel Board

1
knob
(VOL)
3
six claws
4
PANEL board
2
ten screws
(BVTP2.6
×
8

3-4. Back Panel Section

5
connector
(CN905)
4
connector
(CN503)
6
connector
(CN908)
7
connector
(CN904)
8
back panel section
1
w
11p (CN101)
ire (flat type)
2
four screws
(BVTP3
3
two screws
(BVTP3
×
10
×
8)
10

3-5. MAIN Board

)
d
5
w
ire (flat type)
9p (CN303)
4
w
ire (flat type)
37p (CN402)
3
connector
(CN404)
1
connector
(CN907)
9
MAIN board
2
two screws
(BVTP3
HCD-HP7
×
8
8
connector
(CN305)
7
w
ire (flat type)
27p (CN302)

3-6. PWR AMP Board, Power Transformer

5
four screws
(BVTT4
×
8)
6
power transformer
6
w
ire (flat type)
19p (CN301)
1
connector
(CN902)
2
screw
(BVTP3
3
four screws
(BVTP3
×
8)
×
8)
4
PWR AMP boar
11
HCD-HP7

3-7. CD Mechanism Deck (CDM69CH-K6BD71C)

1
two screws
(BVTP3
×
8
)
7
CD mechanism deck
(CDM69CH-K6BD71C)
3
blacket (TR)
2
two screws
(BVTP3
×
4
four screws
(BVTP3
5
w
ire (flat type)
27p (CN701)
8
)
× 8
)

3-8. Base Unit Section

2
screw
6
19p (CN710)
(DIA. 12)
w
ire (flat type)
12
4
boss
7
base unit section
5
boss
6
boss
3
boss
1
floating
screw
(+PTPWHM2.6)

3-9. Base Unit (BU-K6BD71C)

q;
base unit (BU-K6BD71C)
4
floating screw (+PTPWHM2.6)
9
insulator (213)
5
3
floating screw (+PTPWHM2.6)
8
insulator (213)
1
floating screw (+PTPWHM2.6)
6
insulator (213)
2
floating screw (+PTPWHM2.6)
7
insulator (213)
HCD-HP7

3-10. BD Board

3
wire (flat type)
(16core)
4
BD board
1
screw
(BVTP2.6
2
Remove the solder
(four portions).
×
8)
13
HCD-HP7
)
Ver 1.1 2003.11

3-12. SW Board, Bracket (Top) Assy

3
SW (2) board
1
four
screws
(BTP2.6
×
6)
2
SW (1) board
7
bracket (top) assy
4
SW (3) board
5
SW (4) board
6
six screws
(BVTP2.6
×
8
14

3-13. CONNECTOR Board

s
CONNECTOR board
– bottom view –
6
connector (CN703)
5
connector (CN702)
4
connector (CN710)
HCD-HP7
3
1
Remove five solders.

3-14. Motor (Stocker) Assy (Stocker)(M761)

3
two screws
(BVTP2.6
5
STOCKER MOTOR
board
×
2
four screws
(BVTP2.6
7
CONNECTOR board
4
8)
2
Remove two solder
6
motor (stocker) assy (stocker) (M761)
×
8)
1
belt (mode)
15
HCD-HP7
d

3-15. Motor (Roller) Assy (Roller)(M781)

3
two screws
5
motor (roller) assy
(roller)(M781)
2
Remove two solders.
4
ROLLER MOTOR
boar

3-16. Motor (Mode) Assy (Mode)(M771)

1
Remove five solders of rotary encoder.
MODE MOTOR board
2
Remove two solders of motor (M771)
1
belt (roller V)
3
two screws
(BVTP2.6
×
8)
4
MODE MOTOR board
6
motor (mode) assy (mode) (M771)
16
5
belt (mode V)

3-17. Rubber Roller (Slider) Assy

)
8
0
rubber roller (slider 1) assy
qa
rubber roller (slider 2) assy
qs
step screw
qd
rubber roller (slider 4) assy
step screw
qf
screw (BVTP2.6
×
9
8)
tension spring (slider 2)
5
step screw
6
tension spring (base slider 4)
7
rubber roller (slider 1) assy
1
step screw
2
HCD-HP7
rubber roller (slider S) assy
3
tension spring (base slider 5
4
rubber roller (slider 5) assy
qg

3-18. Timing Belt (Front/Rear)

3
5
two gears (center)
6
timing belt (front)
sub chassis
slider (mode cam) assy
7
two gears (center)
8
timing belt (rear)
9
timing belt (rear)
When install three timing belts, its pass under each claws.
timing belt (rear)
claw
timing belt (rear)
claw
claw
claw
4
gear (timing)
2
gear (mode cam) : Note
1
screw
(PTPWH2.6
×
timing belt (front)
Note: Refer to assembly (Section 4)
8)
17
HCD-HP7
)
r

3-19. Cam (Gear)

qf
cam (gear) : Note
qd
Note: Refer to assembly (Section 4).
screw
qs
gear(mode cam)
qa
(PTPWH2.6
screw
0
gear (mode C) :Note
×
8)
9
screw
(PTPWH2.6
6
gear (mode 5)
5
screw (PTPWH2.6 × 8
4
gear (mode 5)
3
screw (PTPWH2.6 × 8)
2
pulley (mode deceleration)
1
screw(PTPWH2.6 × 8)
8
gear (mode D)
×
8)
7
screw (PTPWH2.6 × 8)

3-20. SENSOR Board

q;
cam (eject lock)
: Note
9
screw (PTPWH2.6
qs
cam (BU U/D)
qd
×
gear (eject lock)
7
ql
harness
8)
8
shaft (shutter)
compression spring (shutter)
wa
SENSOR board
w;
screw
(BVTP2.6
6
gear (mode A)
5
base (shutter) block
qk
claw
qh
two claws
qj
rotary encode (S771)
×
8)
qf
gear (mode B)
qg
screw (PTPWH2.6
×
8)
18
qa
screw (PTPWH2.6
3
8)
screw (BVTP2.6
1
screw (PTPWH2.6
×
8)
4
two screws
×
8)
2
lever shutter (A)
(BVTP2.6
×
8)
Note: Refer to assembly (Section 4).
×
• This set can be assembled in the order shown below.

4-1. How to Install the Cam (Eject Lock)

1
Rotate the cam (BU U/D) fully in the direction of arrow.
2
Engage the gear (eject lock) and the gear of the cam (eject lock) aligning the mark with the center of the gear (eject lock).
cam (BU U/D)
HCD-HP7
SECTION 4

ASSEMBLY

mark

4-2. How to Install the Cam (Gear)

1
Check that the cam (BU U/D) can not be rotated in the direction of arrow.
2
Align the mark on the cam (gear) with the boss as shown in the figure and install the cam (gear).
cam (BU U/D)
gear (eject lock)
– bottom view • front –
cam (gear)
cam (eject lock)
boss
mark
– bottom view • front –
19
HCD-HP7

4-3. How to Install the Gear (Mode C)

1
Align the mark on the rotary encoder (S771) with the projection of the assy.
2
Check that the cam (BU U/D) can not be rotated in the direction of arrow.
3
Install the gear (mode C)
rotary encoder (S771)
cam (BU U/D)
gear (mode C)
mark projection

4-4. How to Install the Gear (Mode Cam)

1
Slide the shaft in the direction of arrow.
2
Align mark A on the gear (mode cam) with mark B on the slider (mode cam) assy, then install the gear (mode cam).
3
Check that mark C on the gear (mode cam) is in alignment with mark D on the cam (gear).
mark
A
gear (mode cam)
mark
D
– bottom view • front –
shaft
mark
B
chassis
slider (mode cam) assy
20
cam (gear)
– bottom view • front –
mark
C
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