SONY HTC-V5550 User Manual

MICROFILM

HTC-V5550

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SERVICE MANUAL

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• This set is the deck and Video CD section in MHC-V5550/V7770.

This stereo system is equipped with the Dolby Btype noise reduction system. * Manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY , the double-D symbol a and “PRO LOGIC” are trademarks of Dolby Laboratories Licensing Corporation.

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CD CD Mechanism Type CDM38-5BD24 Section Base Unit Type BU-5BD24

Tape deck Section Tape Transport Mechanism Type

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Model Name Using Similar Mechanism HCD-V717

Optical Pick-up Name KSS-213BA/F-NP Model Name Using Similar Mechanism HTC-W555

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Chinese Model

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E Model

TCM-230AWR2 TCM-230PWR2

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SPECIFICATIONS

Video section

Inputs AV INPUT VIDEO (phono jack):

1Vp-p, 75 Ω VIDEO IN (phono jack) 1Vp-p, 75 Ω

Outputs MONITOR OUT (phono jack):

1Vp-p, 75 Ω VIDEO OUT (phono jack) 1Vp-p, 75 Ω S-VIDEO (4-pin/mini-DIN jack): Y: 1Vp-p, unbalanced, sync negative C: 0.286Vp-p, load impedance 75 Ω

VIDEO CD/CD player section

System Compact disc, digital audio video system Laser Semiconductor laser (λ=780nm)

Emission duradon: continuous

Laser output Max. 44.6µW*

*This output is the value measured at a diatance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture.

Frequency response 20 Hz – 20 kHz (±1 dB) Wavelength 780 – 790 nm Signal to noise ratio More than 90 dB Dynamic range More than 90 dB Video Color System format

NTSC, PAL

CD OPTICAL DIGITAL OUT (Square optical connector jack, rear panel) Wavelength 600 nm Output Level –18 dBm

Tape player section

Recording system 4-track 2-channel stereo Frequency response 40 – 13,000 Hz (±3 dB), (DOLBY NR OFF) using Sony TYPE

cassette 40 – 14,000 Hz (±3 dB), using Sony TYPE cassette

Design and specifications are subject to change without notice.

COMPACT DISC DECK

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CAUTION

Use of controls or adjustments or performance of procedures

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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 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

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or unsoldering.

Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.

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NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK

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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 waveform is output three times.

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This appliance is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT MARKING is located on the rear exterior.

The following caution label is located inside of the unit.

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SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE

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COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

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TABLE OF CONTENTS

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1. SERVICING NOTE .......................................................... 4

2. GENERAL .......................................................................... 7

3. DISASSEMBLY

3-1. Loading Panel ................................................................. 8

3-2. Back Panel and CD Mechanism Deck ............................ 8

3-3. Front Panel ...................................................................... 9

3-4. TC Mechanism Deck and Cassette Holder ..................... 9

3-5. Disc Tray....................................................................... 10

4. MECHANICAL ADJUSTMENTS .......................... 11

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5. ELECTRICAL ADJUSTMENTS ............................... 1 1

6. DIAGRAMS

6-1. Circuit Boards Location ................................................ 16

6-2. Block Diagrams

• Servo Section ................................................................... 17

• Audio/Video CD Section ................................................. 19

• Tape Deck Section ........................................................... 21

• Power Section ..................................................................23

6-3. Printed Wiring Board – CD Section – .......................... 25

6-4. Schematic Diagram – CD Section – ............................. 27

6-5. Schematic Diagram – Deck Section – .......................... 29

6-6. Printed Wiring Board – Deck Section –........................ 31

6-7. Printed Wiring Board – Main Section –........................ 33

6-8. Schematic Diagram – Main (1/2) Section –..................35

6-9. Schematic Diagram – Main (2/2) Section –..................37

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6-10. Printed Wiring Board – Leaf SW Section –................ 39

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6-11. Schematic Diagram – Leaf SW Section –................... 39

6-12. Printed Wiring Board – Panel Section – ..................... 41

6-13. Schematic Diagram – Panel Section – ........................ 43

6-14. Schematic Diagram – CD Motor Section – ................ 45

6-15. Printed Wiring Board – CD Motor Section – ............. 47

6-16. Printed Wiring Board – Video Section –..................... 49

6-17. Schematic Diagram – Video (1/2) Section –............... 51

6-18. Schematic Diagram – Video (2/2) Section –............... 53

6-19. IC Block Diagrams ..................................................... 58

6-20. IC Pin Functions Description ......................................60

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7. EXPLODED VIEWS

7-1. Case and Back Panel Section ........................................ 67

7-2. Front Panel Section ....................................................... 68

7-3. CD Mechanism Section 1 (CDM38-5BD24)................69

7-4. CD Mechanism Section 2 (CDM38-5BD24)................70

7-5. Base Unit Section (BU-5BD24) ................................... 71

7-6. TC Mechanism Section 1 (TCM-230AWR2)...............72

7-8. TC Mechanism Section 2 (TCM-230AWR2) ..............73

8. ELECTRICAL PARTS LIST ........................................ 74

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SECTION 1

SERVICING NOTE

HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF

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Remove the Case.

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Pull-out the disc tray.

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Turn the cam to the

direction of arrow.

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Note for Installation (ROTARY ENCODER)

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BU cam

Groove

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Note:When attaching the Base unit, Insert th section A into the groove of BU cam.

Section A

Note:When attaching the BU cam, engage the Rotary encoder switch as shown in the figure.

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Connection and Operations of the Unit by Itself

This unit cannot be operated by itself as it does not come with a power supply.

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Connect STR-V5550/V7770 as shown in “Connection 1” before beginning servicing.

Connection 1: If there is STR-V5550/V7770.

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STR-V5550/V7770

SYSTEM CABLE 17P

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Use a power supply jig (PFJ-1) if the STR-V5550/V7770 is not available. Connect the conversion jig for connection (J-2501-138-A) as shown in “Connection 2” before beginning servicing.

Connection 2: If there is not STR-V5550/V7770.

Power SW

Service Box (PFJ-1)

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AC IN

FH-E939,838,737 MHC-6600,5600,3600,2600 CDP/TC

Connector cable 17P

(Supplied with PFJ-1)

Conversion

Jig

(J-2501-138-A)

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SET

SYSTEM CONTROL

Connector cable 17P

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(Supplied with

Conversion Jig or Set)

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Set

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To operate the unit by itself, turn on the power of the conduction jig (PFJ-1), and press the π (TAPE A) , π (TAPE B) , and · (TAPE B) buttons together in this order.

As this unit is not equipped with fast forward and rewind buttons, buttons need to be combined and pressed together for different functions when operating the unit by itself. (See Table-2.) However, it will not operate properly if operations are performed without switching the functions. Perform the following procedure to switch the functions before operating the unit. The function selected is indicated by the DISC NUMBER indicator.

Table 1 Switching the Functions Table 2 Pressing Combination of Buttons When Operated by Itself

Function

CD p (CD) button 1` 2` 3

+ HI-SPEED DUBBING button

TAPE A p (CD) button 1` 2 3

+ r REC button

TAPE B p (CD) button 12` 3

+ ª (TAPE A) button

The function can be differentiated by the lighting of this part of the indicator.

↓↓

1` 2` 3

Operation

Indicator

Deck

CD + (AMS) π (TAPE B) button + DISC3 button

TAPE A + (AMS) DISC SKIP button + · (TAPE B) TAPE B = (AMS) DISC SKIP button + ª (TAPE B)

Function Operation

= (AMS) π (TAPE B) button + DISC1 button ) π (TAPE A) button + DISC3 button 0 π (TAPE A) button + DISC1 button

) DISC SKIP button + · (TAPE A) 0 DISC SKIP button + ª (TAPE A)

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Cold Reset

NOTE: This is the mode for operating the unit by itself. Take note that the operating method differs when connected to the STR-V5550/

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V7770. This method is described in the manuals of the STR-V5550 and STR-V7770. Refer to these manuals for details.

This mode is used for initializing the RAM contents. Perform this mode when returning the repaired product to the customer.

Precedure:

1. After turning ON the power of the conduction jig (PFJ-1), press the π (TAPE A) button, π (TAPE B) button, and · (TAPE B) button together in this order.

2. Press the P (TAPE) button while pressing the p (CD) button.

CD Delivery Mode

NOTE: This is the mode for operating the unit by itself. Take note that the operating method differs when connected to the STR-V5550/

V7770. This method is described in the manuals of the STR-V5550 and STR-V7770. Refer to these manuals for details. This mode moves the pickup to areas where the anti-vibration is stronger. Perform this mode when returning the repaired product to the customer.

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Precedure:

1. After turning ON the power of the conduction jig (PFJ-1), press the π (TAPE A) button, π (TAPE B) button, and · (TAPE B) button together in this order.

2. Press the CD SYNCHRO button while pressing the p (CD) button.

3. Wait untill r (TAPE B) indicator is on befor disconnect from the conduction jig (PFJ-1).

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LED All Lit Mode

NOTE: Always perform this mode when operating the unit by itself.

This mode is used for lighting up the whole LED.

Precedure:

1. After turning ON the power of the conduction jig (PFJ-1), press the π (TAPE A) button, π (TAPE B) button, and · (TAPE B) button together in this order.

2. The whole LED can be turned on and off each time the π (TAPE A) button is pressed while pressing the p (CD) button.

3. Press the three buttons in step 1 at the end.

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Key Check Mode

NOTE: Always perform this mode when operating the unit by itself.

This mode is used for checking the key inputs of the buttons of the unit.

Precedure:

1. After turning ON the power of the conduction jig (PFJ-1), press the π (TAPE A) button, π (TAPE B) button, and · (TAPE B) button together in this order.

2. Press the DOLBY NR button while pressing the p (CD) button to set the key check mode, and the indicator displays “3 ·P”.

3. The number of buttons pressed are indicated in binary digits by the indicator LED. Buttons pressed once are not counted when pressed again.

4. Press the two buttons in step 2 at the end.

Display: 1` 2` 3

MSB ↑↑ LSB

Aging Mode NOTE: Perform the following procedure only when operating the unit by itself.

This mode is used for checking the operations of the CD player and tape deck. The operations are the same as the aging mode described in the service manual for the STR-V5550/V7770. However as this unit does not have a fluorescent indicator tube, operating states and error statuses cannot be checked. If the STR-V5550/V7770 is available, set the aging mode according to those service manuals.

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Aging continues in the following sequence as long as no errors occur.

Aging of CD player (12 minutes) Aging of deck A Aging of deck B

Precedure:

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1. After turning ON the power of the conduction jig (PFJ-1), press the π (TAPE A) button, π (TAPE B) button, and · (TAPE B) button together in this order.

2. Press the π (TAPE B) button while pressing the p (CD) button to set the aging mode and start aging.

3. To end aging, press the three buttons in step 1.

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12 minutes

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Front Panel

SECTION 2

GENERAL

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#¡

#º

@ª

@•

@¶

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234 5 6 7 8 9

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!º

!¡ !™ !£ !¢

!∞

!§

!¶

!•

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LOCA TION OF PARTS AND CONTROLS

1 DISC SKIP/EX-CHANGE button 2 DISC 1 button 3 DISC 2 button 4 DISC 3 button 5 DISC NUMBER 1` 2` 3 indicator 6 ( (CD play) indicator 7 P (CD pause) indicator 8 6 OPEN/CLOSE button 9 p (CD stop) button !º ·P (CD play pause) button !¡ œ (Deck A play) indicator !™ r (Deck B rec) indicator !£ P (Tape (Deck B pause)) indicator !¢ œ (Deck B play) indicator !∞ · (Deck B play) button !§ ª (Deck B play) button

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@º

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@¡@™@£@¢@∞ !ª@§

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!¶ π (Deck B stop) button !• § (Deck B eject) button !ª Casette lid (Deck B) @º DIRECTION MODE button @¡ P PAUSE button @™ r REC button @£ HI-SPEED DUBBING button @¢ CD SYNCHRO button @∞ DOLBY NR button @§ Casette lid (Deck A) @¶ § EJECT (Deck A) button @• π (Deck A stop) button @ª ª (Deck A play) button #º · (Deck A play) button #¡ Video CD Disc tray

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SECTION 3

DISASSEMBLY

Note: Follow the disassembly procedure in the numerical order given.

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3-1. LOADING PANEL

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Pull-out the disc tray.

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Two claws

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Loading panel

(Remove two claws)

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Turn the cam to the

direction of arrow.

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3-2. BACK PANEL AND CD MECHANISM DECK

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!º

Screw

(BVTP3

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!£

Connector

(CN112)

×

10)

!¢

CD mechanism deck

!™

Connector

(CN111)

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Back panel

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Two screws

(BVTP3

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×

10)

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Three screws

(BVTP3

!¡

Flat type wire

(19core, CNS103)

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Four screws

(BVTP3

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(BVTP3

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×

10)

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×

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Screw

×

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Cover (SC)

System cable

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(BVTP3

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Dummy board

Two screws

×

10)

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Three screws

(BVTP2.6

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Two screws

(BVTP2.6

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8)

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TC mechanism deck

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Two springs

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D

C

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Remove the Cassette holder A and Cassette holder B. (Remove

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first, and remove D.)

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Eject button

A

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Eject button

B

Note for installation

Set the Spring to be at the position in the figure.

B

(Push out in the direction of the arrow

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.)

(Push out in the direction of the arrow

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3-3. FRONT PANEL

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Front panel

(Remove the catcher)

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Lead (with connector)

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Flat type wire

(15core, CNS101)

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Catcher

Flat type wire

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(17core, CNS104)

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Flat type wire

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(17core, CNS102)

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Connector (CNP105)

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Connecto

(CN113)

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3-4. TC MECHANISM DECK AND CASSETTE HOLDER

5

Two screws

(BVTP3x10)

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3-5. DISC TRAY

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Two claws

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Flat type wire (8 core)

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Note: When installing the Disc tray, pull around the flat type wire to

pass through the claw A and claw B , as shown in the figure.

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Pull-out the disc tray.

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Remove the disc tray.

Claw

Turn the cam the

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direction of arrow.

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Claw

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SECTION 4

MECHANICAL ADJUSTMENTS

Precaution

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1. Clean the following parts with a denatured alcohol-moistened

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2. Demagnetize the record/playback head with a head

3. Do not use a magnetized screwdriver for the adjustments.

4. After the adjustments, apply suitable locking compound to the

5. The adjustments should be performed with the rated power

Torque Measurement

FWD FWD

back tension

REV REV

back tension

FF/REW

FWD tension

REV tension

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swab:

record/playback heads pinch rollers erase head rubber belts capstan idlers

demagnetizer.

parts adjusted.

supply voltage unless otherwise noted.

Mode

6

Torque meter

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3

CQ-102C

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

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1

Meter reading

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

31 to 71 g • cm

(0.43 – 0.98 oz • inch)

2 to 6 g • cm

(0.02 – 0.08 oz • inch)

71 to 143 g • cm

(0.98 – 1.99 oz • inch)

100 g or more

(3.53 oz or more)

100 g or more

(3.53 oz or more)

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Read before adjustments

T o adjust the unit, operate the unit by itself using the conduction jig (PFJ-1).

For details on switching functions and fast forwarding the unit, etc. when operating it by itself, refer to “Connection and Operations of the Unit by Itself” on page 5 of Servicing Notes.

• Turning on the power When operating the unit by itself:

1. After turning ON the power of the conduction tool (PFJ-1),

Inputting/outputting audio signals:

Use the jack of the power supply jig (PFJ-1).

DECK SECTION 0 dB=0.775V

1. Demagnetize the record/playback head with a head

2. Do not use a magnetized screwdriver for the adjustments.

3. After the adjustments, apply suitable locking compound to the

4. The adjustments should be performed with the rated power

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5. The adjustments should be performed in the order given in this

6. The adjustments should be performed for both L-CH and R-

7. Switches and controls should be set as follows unless otherwise

SECTION 5

ELECTRICAL ADJUSTMENTS

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press the π (T APE A) button, π (TAPE B) button, and · (TAPE B) button together in this order.

PFJ-1

damagnetizer.

parts adjusted.

supply voltage unless otherwise noted.

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service manual. (As a general rule, playback circuit adjustment should be completed before performing recording circuit adjustment.)

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specified.

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Output point

Input point

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Tape Signal Used for

P-4-A100

WS-48B

P-4-L300

Record/Playback Head Azimuth Adjustment (Deck A, Deck B)

Note: Perform this adjustments for both decks.

Procedure:

1. Mode : Playback

test tape

P-4-A100

(10kHz, -10dB)

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10 kHz, –10 dB

3 kHz, 0 dB

315 Hz, 0 dB

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PFJ-1

Azimuth Adjustment

Tape Speed Adjustment

Level Adjustment

level meter

output point

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2. T urn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw

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so that outputs match within 1 dB of peak.

L-CH peak

R-CH

screw

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position

3. Mode: Playback

(10kHz, -10dB)

peak

test tape

P-4-A100

3

output level

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within 1 dB

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L-CH peak

output point

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1

R-CH peak

oscilloscop

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1

within 1dB

screw position

5

Tape Speed Adjustment (Deck B)

0

Note: Set the test mode using the following method and begin tape

speed adjustment. In the test mode, the speed will switch to double speed or normal speed each time the HI-DUB button is pressed.

Procedure:

Press the p (CD) button while pressing the DIRECTION MODE button.

1. Insert the WS-48B into deck B, while pressing the p (CD) button, press the ª (TAPE A) button, set the function to “deck B”.

2. Press the · button of deck B.

3. Press the HI-DUB button and play the tape at double speed.

4. Adjust RV1001 of the LEAF SW board so that the reading of the frequency counter becomes 6000 ± 180 Hz.

5. Press the HI-DUB button and play the tape at normal speed.

6. Adjust RV1002 of the LEAF SW board so that the reading of the frequency counter becomes 3000 ± 90 Hz.

Adjustment Location: LEAF SW board

Sample Value of Wow and flutter

W.RMS (JIS) less than 0.3% (test tape: WS-48B)

8

9

2

4

9

8

2

9

TEL 13942296513 QQ 376315150 892498299

set PFJ-1

TEL

4. After the adjustments, apply suitable locking compound to the parts adjusted.

Adjustment Location: Playback Head (Deck A)

13942296513

Waveform of oscilloscope

in phase 45

good

°

90

Record/Playback/Erase Head (Deck B)

135

°

wrong

180

°

Playback Level Adjustment (Deck A, Deck B)

Procedure:

Mode: Playback

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301 (L-CH) and RV401 (R-CH) so that adjustment within the following adjustment level.

Adjustment level:

Output point from PFJ-1 playback level: 301.5 to 338.3 mV (–8.2 to –7.2 dB) level difference between the channels: within ± 0.5 dB Adjustment Location: AUDIO board

Adjustment Location [LEAF SW BOARD]

test tape

P-4-L300

(315Hz, 0dB)

set

level meter

PFJ-1

output point

2

9

Reverse

Foward

w

.

xia

o

y

u

1

— 12 —

6

RV1002 RV1001

3

.

RV1001(High Speed) RV1002(Normal Speed

c

o

m

e

Record Bias Adjustment (Deck B)

7

Q

TEL 13942296513 QQ 376315150 892498299

TEL

3

Procedure:

1. Press the p (CD) button while pressing the DIRECTION MODE button.

2. While pressing the p (CD) button, press the ª (TAPE A) button, set the function to “deck B”.

3. Insert a tape into deck B, press the r REC button, and then press the ( button to start recording.

4. Mode: Record

AF OSC

5. Mode: Playback

recorded position

6. Confirm playback the signal recorded in step 2 become

13942296513

adjustment level as follows. If these levels do not adjustment level, adjust the RV341 (LCH) and RV441 (R-CH) on the AUDIO board to repeat steps 3 and 4.

Adjustment level: The playback output of 10 kHz level difference

6

attenuator

set

against 315 Hz reference should be ± 1.0 dB.

1

3

INPUT POINT

1) 315 Hz

2) 10 kHz

Ω

600

PFJ-1

5

1

} 50 mV (–23.8 dB)

set

PFJ-1

level meter

output

point

5

blank tap CS-123

0

Q

Record Level Adjustment (Deck B)

Procedure:

1. Press the p (CD) button while pressing the DIRECTION

2. While pressing the p (CD) button, press the ª (T APE A)

3. Insert a tape into deck B, press the r REC button, and then

4. Mode: Record

5. Mode: Playback

6. Confirm playback the signal recorded in step 2 become

7

3

Adjustment level:

Output point from PFJ-1 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)

4

2

9

8

MODE button.

button, set the function to “deck B”.

press the ( button to start recording.

AF OSC

attenuator

recorded position

set

adjustment level as follows.

6

If these levels do not adjustment level, adjust the RV301 (LCH) and RV351 (R-CH) on the MAIN board to repeat steps 3 and 4.

3

1

5

1

5

0

9

INPUT POINT 315Hz 50 mV (–23.8 dB)

Ω

600

PFJ-1

2

9

8

output

point

4

2

set

level meter

8

9

2

9

blank tape CS-123

9

TEL 13942296513 QQ 376315150 892498299

Adjustment Location: AUDIO board

Adjustment Location

[AUDIO BOARD] (Conductor Side)

RV341(Lch),RV441(Rch) Record Bias

RV301 RV401

RV441 RV341

RV301(Lch),RV401(Rch) Playback Level (Deck B)

w

.

xia

RV311(Lch),RV411(Rch) Playback Level (Deck A)

RV311

o

y

u

RV411

1

Adjustment Location: MAIN board

[MAIN BOARD] (Component Side)

CNS102

CNS101

6

3

.

c

o

RV301

Record

Level (L ch)

CNP105

RV351

Record

Level (R ch)

m

— 13 —

e

)

CD SECTION

Q

Notes:

1. CD block basically constructed to operate without adjustment. Therefore, check each item in order given.

2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated.

3. Use the oscilloscope with more than 10 MΩ impedance.

4. Clean an object lens by an applicator with neutral detergent when the signal level is low than specified value with the following checks.

S-Curve Check

Connection:

BD board

TEL 13942296513 QQ 376315150 892498299

Procedure:

1. Connect the oscilloscope to TP (FE) and TP (VC) on BD board.

2. Connect between test point TP (FOK) and Ground by lead wire.

3. Turned power switch on.

4. Put disc (YEDS-18) in and turned power switch on again and

actuate the focus search. (actuate the focus search when disc table is moving in and out.)

5. Confirm that the oscilloscope waveform (S-curve) is

symmetrical between A and B. And confirm peak to peak level within 3.0 ± 1.0 Vp-p.

3

TP (FE)

TP (VC)

7

6

oscilloscop

+ –

3

1

5

1

5

0

When observing the eye pattern, set the oscilloscope for AC range and raise vertical sensitivity.

When a general remote commander is not used (1 Track Jump Check): Procedure:

1. Connect the oscilloscope to TP (TE) and TP (VC) on BD board.

2. Turned power switch on.

3. Put disc (YEDS-18) in and press the ﬂ button, and play the

4. Press the ﬂ button. (Becomes the 1 track jump mode)

5. Confirm that the level B of the oscilloscope's waveform and

RF signal waveform

number five track.

the A (DC voltage) of the center of the traverse waveform. Confirm the following:

A – B

2 (A + B)

9

8

× 100 = ± 7 (%)

2

4

9

VOLT/DIV: 200 mV TIME/DIV: 500 ns (with the 10: 1 probe in use)

level: 1.3 Vp-p

8

+0.25 –0.20

2

9

TEL 13942296513 QQ 376315150 892498299

S-curve wavef orm

TEL

6. After check, remove the lead wire connected in step 2.

Note: • Try to measure several times to make sure that the ratio of A : B

or B : A is more than 10 : 7.

• Take sweep time as long as possible and light up the brightness to obtain best waveform.

RF Level Check

Connection:

Procedure:

1. Connect the oscilloscope to TP (RF) and TP (VC) on BD board.

2. Turned power switch on.

3. Put disc (YEDS-18) in and press the ﬂ button.

4. Confirm that the oscilloscope waveform is clear and check RF signal level is correct or not.

Note: Clear RF signal waveform means that the shape “≈” can be clearly

distinguished at the center of the waveform.

13942296513

BD board

TP (RF) TP (VC)

symmetry

A

within 3.0 ± 1.0 Vp-p

B

oscilloscop

(AC range)

+ –

1 track jump waveform

6

7

3

Q

0V

level: 1.3 ± 0.6 Vp-p

Connection Location:

[BD Board] (Side A)

CN101

TP

(FOK)

3

5

1

IC101

1

5

Center of the waveform

B

2

9

8

0

symmetry

CN102

IC103

TP

(TE)

TP

(FE)

2

8

9

4

A (DC voltage

TP (RF) TP (VC

9

w

.

xia

o

y

u

1

6

3

— 14 —

.

c

o

m

r

MAIN board

REGULATOR board

VIDEO IN/OUT board

VIDEO board

TC (A) board

TC LED board

TC (B) board

TC (P) board

CD (P) board

AUDIO board

LEAF SW board

SENSOR board

CONNECTOR board

BD board

MOTOR (SLIDE) board

MOTOR (TURN) board

HTC-V5550

SECTION 6 DIAGRAMS

VIDEO SECTION

Q

Frequency Adjustment

Connection:

Procedure:

1. Connect the frequency counter to TP508 (27 MHz) on VIDEO

2. Turned power switch on.

3. Press the FUNCTION button to select the CD.

TEL 13942296513 QQ 376315150 892498299

4. Adjust CT503 on the VIDEO board so that the frequency

Adjustment Location:

[VIDEO BOARD] (Side A)

Q

VIDEO board

TP508 (27 MHz)

board.

counter reading 27.0 MHz ± 80 Hz at stop status.

3

7

frequency counte

+ –

6

3

1

5

1

5

0

6-1. CIRCUIT BOARDS LOCATION

8

9

2

4

9

8

2

9

TEL 13942296513 QQ 376315150 892498299

T

E

L

1

IC505

IC507

3

9

4

2

TP508

(27 MHz)

CT503

VIDEO

Frequency

Adjustment

2

9

6

5

1

3

Q

3

7

6

3

1

5

1

5

0

8

9

2

4

9

8

2

9

w

.

x

— 15 — — 16 —

i

a

o

y

u

1

6

3

.

c

o

m

HTC-V5550

6-2. BLOCK DIAGRAMS

— SERVO SECTION —

7

FOCUS/TRACKING ERROR AMP

A

3

B

4

C

5

D

6

F

F I-V AMP

8

E

9

E I-V AMP

POWER

Q101

27 26

13

12

2

1

16 17

1

FOCUS/TRACKING COIL DRIVE,

SPINDLE/SLED MOTOR DRIVE

3

9

OUT+

MOTOR

OUT–

OUT+

MOTOR

OUT–

OUT– OUT+

OUT+ OUT–

DRIVE

LD

IC102

DRIVE

COIL

DRIVE

COIL

APC LD

4

6

RF AMP,

IC103

RF

SUMMING

AMP

2

IN+

IN–

IN– IN+

MUTE

RF EQ

FOCUS

ERROR AMP

TRACKING

ERROR AMP

APC PD

AMP

2

IN+, IN–

23, 24

9

10

4 5

19 20

15

3

AMP

FE BIAS

RFO

RFE

LDON

9

16

17

FE

15

14

TE

13

19

PD

2

6

SFDR

100

SRDR

2

TFDR

4

TRDR

6

FFDR

8

FRDR

10

7

4

2

1

5

10

6

M101

M102

(SLED)

3

A+5V

AUTOMATIC

CONTROL

1

M

Q

DETECTOR

A

B

C

D

I-V AMP

F

TEL 13942296513 QQ 376315150 892498299

E

OPTICAL PICK-UP (KSS-213D/Q-NP)

LASER DIODE

LD

PD

T

E

L

(SPINDLE)

2-AXIS

DEVICE

(TRACKING)

(FOCUS)

16

1

RF EQ

SWITCH

Q102, 103

CTL1

CTL2

5

1

29

28

27

TE

SE

CONVERTER

PWM GENERATOR

FOCUS/TRACKING/SLED

SERVO

INTERFACE

5

1

36

38 39

3

26

FE

RFDC

A/D

MIRR/DFCT/

COUT 89

DETECTOR

SERVO AUTO

SEQUENCER

SERVO DSP

FOCUS/TRACKING/SLED

5

DIGITAL SIGNAL PROCESSOR

IC101 (1/2)(BD BOARD)

RFAC

ASYMMETRY

CORRECTOR

ASYI ASYO

NOISE

SHAPER

DIGITAL SERVO

PROCESSOR

IC101 (2/2)

(BD BOARD)

FOK

CPU

INTERFACE

MIX

18-TIMES

OVERSAMPLING

FILTER

CLV

PROCESSOR

MDP

MON

FSW

94

95

96

FOK

93

MIRR

91

DFCT

92

SENS

80

DATA

86

CLOK

88

XLAT

87 99

SSTP

MDS

97

0

31

FILO

PROTECTOR

GENERATOR 1

28

A+5V

FILTER

34

33

PCO

CLTV

DIGITAL PLL VARI-PITCH

DOUBLE SPEED

SYNC

TIMING

SCOR

WFCK

74

73

18

SCOR

LDON

Q

SENSE

1

S101

(LIMIT)

32

FILI

GENERATOR 2

DSP CLK

DSP DATA

3

5

DEMODULATOR

TIMING

DSP LATCH

4

EFM

ADDRESS

GENERATOR

SUBCODE Q

PROCESSOR

SUBQ

SQCK

77

78

37

36

SUBQ CLK

7

3

SYSTEM CONTROLLER

IC101 (1/3)(MAIN BOARD)

DISC-SENS

LOAD-OUT

REGISTER

32K

RAM

SUBQ DATA

CD MECHANISM

6

T-SENS

OPEN

ENC1 ENC2 ENC3

LOAD-IN

TBL-L TBL-R

8

PRIORITY ENCODER

SUBCODE P – W

PROCESSOR

EXCK

76

D+5V

CONTROLLER

IC502 (1/2)

1

3

75

76

81

80 79 78

63 64

60 61

9

6320

62

XTAI

VCKI

XTAO

CLOCK

GENERATOR

INTERNAL BUS

SBSO 75

ERROR

CORRECTOR

PEAK

DETECTOR

DIGITAL

OUT

SCLK

83

2

SENSE CLK

1

5

LEVEL SHIFT

Q701

(OPEN/CLOSE DET)

4

ROTARY

2

ENCODER

S811

3

DISC TRAY SLIDE MOTOR DRIVE

10

DISC TRAY TURN MOTOR DRIVE

IC801

FIN

MOTOR

RIN

DRIVE

2

IC701

IN1

3

MOTOR

IN2

DRIVE

6

2

D/A DIGITAL

PROCESSOR

MUTE

79

10

DSP MUTE

0

5

DISC SENSOR

IC703

TABLE SENSOR

IC702

S801

CLOSE

OPEN

OUT1 OUT2

IC104

4

PROCESSOR

SERIAL/PARALLEL

CTRL1 CTRL2

7

M

4

7

M

2

9

XTSL

64

DATA

46

BCLK

47

LRCK

45

GFS

54

RFCK

55

C2PO

56

DOUT

71

81

XRST

11 27

9

8

M801

(SLIDE MOTOR)

M701

(TURN MOTOR)

CTL1 CTL2

2

CTL1

DATA

BCK

LRCK

C2PO

8

4

9

2

OPTICAL

TRANSCEIVER

IC107

2

8

• SIGNAL PATH

MCLK

33.8MHz

9

DATA, BCK,

LRCK, C2PO

9

: CD PLAY : DIGITAL OUT

(Page 19)

A

(Page 19)

B

CD OPTICAL

DIGITAL OUT

9

TEL 13942296513 QQ 376315150 892498299

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

— 17 — — 18 —

RESET

C

(Page 20)

— AUDIO/VIDEO CD SECTION —

7

MPEG VIDEO/AUDIO DECODER,

VIDEO SIGNAL PROCESSOR

CD-DATA

4

CD-BCK

3

CD-LRCK

5

CD-C2PO

6

MA0 – MA10

58 – 56, 54, 52 – 50, 48, 46 – 44 10 – 15, 17, 19, 21, 23 – 29

IC505

CD-ROM

INTERFACE

CIRCUIT

6

3

MPEG

SYSTEM

DECODER

D-RAM/ROM INTERFACE

MD0 – MD15

LEVEL

SHIFT IC501

3

Q

(Page 18)

Q

DATA, BCK, LRCK,

DATA

C2PO

B

BCK

LRCK

C2PO

TEL 13942296513 QQ 376315150 892498299

MPEG AUDIO

DECODER

MPEG VIDEO

DECODER

1

MCE

37

5

VIDEO

PROCESS

CIRCUIT

RAS0

MWE

38 42 40

AUDIO

INTERFACE

CIRCUIT

CAS

60

RESET

1

DA-DATA

DA-BCK

DA-LRCK

DA-XCLK

Y-OUT

C-OUT

VCK-IN

PGIO2/VSYNC/CSYNC

CPU INTERFACE

HRDY

HSEL

HD-OUT

HD-IN

HINT

113

114 121

112

119

(Page 18)

MCLK

A

0

33.8MHz

OSC

BUFFER

IC504

5

110 111 108

86

69 75

106 93

HCK

117

DATA

18

BCK

17

LRCK

19

768FSO

21

384FSO

20

MCKO

4

INPUT

INTERFACE

CIRCUIT

TIMING CONTROL/

CLOCK GENERATOR

XT2

X503

27MHz

XT1

DIGITAL FILTER,

D/A CONVERTER

DIGITAL

FILTER,

NOISE SHAPER CIRCUIT

8

IC509

D/A

CONVERTER

MODE

CONTROL

MC

MD 9 724 1

8

HTC-V5550

4

LOW-PASS

FILER IC101

9

R-CH

8

• SIGNAL PATH : CD PLAY (AUDIO)

: CD PLAY (VIDEO)

VOUTL

VOUTR

2

14

11

9

LOW-PASS

FILER

ML

RSTB 10

2

9

CD-L

9

(Page 23)

E

TEL 13942296513 QQ 376315150 892498299

A0 – A8

16 – 19, 22 – 26

A0 – A8

T

D-RAM

IC507

E

L

UCAS

LCAS

14 132928

DQ1 – DQ16

RAS

WE

D0 – D15

ADDRESS BUS

1

DATA BUS

3

A0 – A10

12 – 5, 27, 26, 23

A0 – A10

9

4

PROGRAM ROM

IC506

X401

8MHz

BUFFER

Q502

D0 – D15

D0 – D7

13 – 15, 17 – 212 – 5, 7 – 10, 31 – 34, 36 – 39

O0 – O7

2

XIN

19

XOUT

20

12C.DATA

14 13

IIC-DATA

12C.CLK

IIC-CLK

D8 – D14

25, 4, 28, 29, 3, 2, 30

A11 – A17

9

6

22

EXPANSION

IC402

RESET

5

1

3

CE

S501

SYSTEM SELECT

NTSC

AUTO

PAL

RXD

UTAU

TXD

UTAI

10918

1112

(SELF DIAGNOSIS)

D502

DATA

CLK

BUS

45

CLK1

33

DATA1O

31 32

DATA1I

CL680 SEL

21 20

CL680 HINT CL680 HRDY

23

24

CL680 RESET

CD MECHANISM CONTROLLER

93

NT/PAL

TEST LED

73

72

UTOI

19

ITOU

29

RXD

30

TXD

DEVICE RESET

Q

IC502 (2/2)

DF LATCH

Q

22 77

9

2

8

9

4

2

9

3

7

B.P.F.

6

3

VIDEO

BUFFER

Q301

VIDEO

BUFFER

Q304

1

VIDEO

BUFFER

Q303

SHARPNESS

FILTER

Q302

5

1

VIDEO

BUFFER

Q307

5

0

VIDEO

BUFFER

Q308

8

Y/C MIX

Q310

VIDEO AMP IC401 (1/2)

5

13

VIDEO AMP IC401 (2/2)

VIDEO MUTE

Q453

7

VIDEO MUTE

Q454

VIDEO SELECT

IC601 1 3

2

C

Y

VIDEO

BUFFER

7

Q601

RESET

9

CD POWER

(Page 18)

3 4

(Page 23)

1

2

C

J301

S VIDEO OUT

J601

VIDEO IN

MONITOR OUT

J

16

(Page 23)

D

F

(Page 23)

RESET

IIC-DATA, IIC-CLK

w

.

SHARPNESS

CONTROL SWITCH

Q306

.

c

o

m

x

i

a

o

y

IIC-DATA

IIC-CLK

u

1315

VMUTE

XOUT

34

65

6

3

12

XRESET

29

CLK DATA

30

XIN

X501

10MHz

SHARPNESS

1

— 19 — — 20 —

HTC-V5550

— TAPE DECK SECTION —

7

PB EQ AMP

(DECK A)

IC611

PB EQ AMP

(DECK B)

IC601

IC602

6

RV311

PB LEVEL (L)

(DECK A)

RV301

PB LEVEL (L)

(DECK B)

4

R-CH

3

REC/PB SWITCHING

1

R-CH

Q

HP101

(PLAYBACK)

L-CH

R-CH R-CH

HRPE101 (1/2)

(RECORD/PLAYBACK)

TEL 13942296513 QQ 376315150 892498299

L-CH

R-CH R-CH

Q

3

DECK A/B SELECT, PB/REC EQ AMP,

3

(DECK A 120/70)

(DECK B 120/70)

DOLBY NR AMP, ALC, AMS

AIN (L)

48

BIN (L)

46

BIAS (N)

33

BIAS (C)

32

BIAS (M)

31

S1004

S1008

DECK PROCESS

1

IC301

BIAS

CONTROL

CIRCUIT

B NORM/CROM

ALC ON/OFF

A 120/70

1516182022 23242517

19

5

NORM/HIGH

PB A/B

70

120

R-CH

NR ON/OFF

BIAS ON/OFF

RM ON/OFF

1

+

L.P.F.

BUFFER

28

27

AMS

CIRCUIT

REC/PB/PASS

LM ON/OFF

26

5

MAOUT

MSIN

MSOUT

RIN (L)

43

0

ALC (L)

44

DOLBY PASS

ROUT (L) 35 34

DOLBY NR

AMP

CIRCUIT

ALC

IN (L)

REC OUT (L) 39

RV301

REC LEVEL (L)

(DECK B)

8

EQ IN (L)

38

REC

EQ AMP

9

PB OUT (L)

EQ OUT

2

40

(L)

36

4

PB-L

9

G

(Page 23)

8

2

• SIGNAL PATH : PB (DECK A)

: PB (DECK B) : REC

9

TEL 13942296513 QQ 376315150 892498299

REC-L

H

(Page 23)

HRPE101 (2/2)

(ERASE)

16

RV441

REC BIAS (R)

(DECK B)

T

R-CH

w

E

BIAS OSC

L

2

RV341

REC BIAS (L)

(DECK B)

T621

w

1

BIAS OSC

Q621, 622

w

3

REC BIAS

SWITCH

Q623

9

C331, L331

BIAS

TRAP

4

B+

(A+7V)

.

2

x

9

6

97

TC-RELAY

A-PLAY-SW

95 96

S1001

(A PLAY)

i

5

1

3

9994939290 898887

BIAS

PB-A/B

EQ-H/N

ALC-ON/OFF

S1002

(B PLAY)

a

REC-MUTE

B-PLAY-SW

o

TC-MUTE

R/P-PASS

NR-ON/OFF

S1003

(A HALF)

31

98

y

AMS-IN

A-HALF

ROTATION

DETECT SENSOR

(DECK A)

IC1001

S1006

(B HALF)

S1009

(REC B)

u

26

A-SHUT

28

B-HALF

1

Q

DETECT SENSOR

Q

ROTATION

(DECK B)

IC1002

27

S1005

(REC A)

6

B-SHUT

6

7

3

SL1

TRIGGER PLUNGER

DECK A

TRIGGER

PLUNGER DRIVE

(DECK A)

Q333, 334

84

SYSTEM CONTROLLER

IC101 (2/3)

3

A-TRG

.

3

5

1

SL2

TRIGGER PLUNGER

DECK B

TRIGGER

PLUNGER DRIVE

(DECK B)

Q331, 332

83

B-TRG

c

1

5

o

0

m

Q335

9

8

RV1001

TAPE SPEED

(HIGH)

82

CAPM-ON/OFF(+)

CAPM-EMG(+)

CAP-M-H/L

CAPM-EMG(–)

CAPM-ON/OFF(–)

4

2

CAPSTAN MOTOR

CONTROL SWITCH

Q1001

100

1

85 86

8

9

RV1002

TAPE SPEED

(NORMAL)

CAPSTAN

MOTOR DRIVE

Q336 – 339

CAPSTAN

MOTOR DRIVE

Q340 – 343

2

9

M

9

M1

(CAPSTAN)

— 21 — — 22 —

— POWER SECTION —

d

M12V

Q

3

A+7.5V

D+5V A+5V

7

6

+7.5V REG

Q852

+5V SW

Q102-104

3

+5V

1

+12V REG

3 1

+5V REG

3 1

+5V REG

3 1

TEL 13942296513 QQ 376315150 892498299

3

6

IC101

i

+7V REG

(Page 20)

(Page 22) (Page 22)

(Page 19)

(Page 20)

(Page 19)

16

T

E

D224-230

w

E

G H

F

J

D

L

ON/OFF

SWITCH

Q214-223

w

CD-L

PB L REC L

IIC-DATA IIC-CLK

1

CD-POWER

RESET

LED

w

3

9

4

.

2

46

CD-POWER

57

52

DECO1

66

DECO2

65

CD-PAUSE

67 72 54 70 69 53

68

x

M+7V

A-7.5V

9

XRST

MASTER CONTROL

CD-PLAY DISC1 DISC2 DISC3 EXIST1 EXIST2 EXIST3

IC851

IC852

IC854

IC853

-7.5V REG Q855

5

IIC DATA

LED1 LED2 LED3 LED4 LED5 LED6

KEY A KEY B

a

5

1

IIC CLK

RESET

X1

X2

3

55 56

15

11

10

2 3 4 5 6 7

29

30

o

1

X101

5MHz

y

+

-

RESET

IC101

KEY

MATRIX

5

RECT

D901-904

u

LED

ON/OFF

SWITCH

Q201-206

0

1

Q

(CD R)

R CH

(PB R)

R CH

(REC R)

R CH

Q

D201-206

6

8

17 13

3

CNB108

SYSTEM

CONTROL

3

6

7

• R CH: Same as L ch

• SIGNAL PATH : CD : PB : REC

.

3

2 9 7 6 4 14

16

3

1

9

5

c

1

2

5

o

0

m

4

8

HTC-V5550

THIS NOTE IS COMMON FOR PRINTED WIRING

9

BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)

For schematic diagrams.

Note:

• All capacitors are in µF unless otherwise noted. pF: µµF

• All resistors are in Ω and 1/

•

• 1 : fusible resistor.

• C : panel designation.

• U : B+ Line.

• V : B– Line.

• H : adjustment for repair.

• Voltages and waveforms are dc with respect to ground

• Voltages are taken with a VOM (Input impedance 10 MΩ).

• Waveforms are taken with a oscilloscope.

• Circled numbers refer to waveforms.

9

• Signal path.

For printed wiring boards.

Note:

• X : parts extracted from the component side.

• p : parts mounted on the conductor side.

•

• b : Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

• Abbreviation

• Indication of transistor

8

50 WV or less are not indicated except for electrolytics and tantalums.

specified.

¢

: internal component.

Note:

The components identified by mark ! or dotted line with mark ! are critical for safety. Replace only with part number specified.

under no-signal (detuned) conditions. Voltage variations may be noted due to normal produc-

tion tolerances. Voltage variations may be noted due to normal produc-

tion tolerances.

4

2

F : FM f : AM E : PB (DECK A) d : PB (DECK B) G : REC (DECK B) J : CD (AUDIO) L : CD (VIDEO) c : DIGITAL OUT

®

: Through hole.

HK : Hong Kong SP : Singapore MY : Malaysia CH : Chinese TH : Thai IA : Indonesia

C

Q

These are omitted

EB

C

EB

These are omitte

9

2

8

9

4

W or less unless otherwise

Note:

9

2

9

TEL 13942296513 QQ 376315150 892498299

— 23 — — 24 —

HTC-V5550

6-3. PRINTED WIRING BOARD — CD SECTION —

Q

TEL 13942296513 QQ 376315150 892498299

Q

3

7

6

• Refer to page 16 for Circuit Boards Location.

3

1

5

1

5

0

8

9

2

4

9

8

2

9

TEL 13942296513 QQ 376315150 892498299

16

• Semiconductor

Location

Ref. No. Location

IC101 E-4 IC102 C-10 IC103 E-2 IC104 F-9

T

E

L

1

3

9

4

2

9

6

5

1

3

S

B

Q

(Page 50)

Q

3

7

6

3

1

5

1

5

0

8

9

2

4

9

8

2

9

Q101 E-12 Q102 C-2 Q103 C-2

w

.

— 25 — — 26 —

x

i

a

o

y

u

1

6

3

.

c

o

m