Sony HCD-MD515 - Component For Dhcmd515 User manual

MINI Hi-Fi COMPONENT SYSTEM
MICROFILM
US Model
AEP Model
UK Model
E Model
Tourist Model
Model Name Using Similar Mechanism NEW
CD Mechanism Type CDM48-5BD29
Base Unit Name BU-5BD29
Optical Pick-up Name KSS-213BA/F-NP
Model Name Using Similar Mechanism NEW
MD Mechanism Type MDM-C1D
Base Unit Name MBU-C1
Optical Pick-up Name KMS-260A/J1N
SPECIFICATIONS
SERVICE MANUAL
HCD-MD515
RM-MD515
HCD-MD515 is the Amplifier, CD player, MD
Deck and Tuner section and RM-MD515 is the
DetachableControllersectioninDHC-MD515.
U.S and foreign patents licensed from Dolby Labora-
tories Licensing Corporation.
CD
Section
MD
Section
RM-MD515 HCD-MD515

– 2 –
SELF DIAGNOSTICS

– 3 –
CD SECTION
1. OPERATING THE DISPLAYED HISTORYS
1. Press the DIMMER button, DBFB button, and CD 16but-
ton simultaneously and enter the test mode.
2. Press the PROGRAM button, and mechanical error count and
the cout of “NO DISC” that optical system judged are displyed.
3. Under this condition press the buttons in Table 2, and the re-
spective operations are executed as listed below.
Table 2.
Button Function
MD/CD 1 Mechanical error cord from latest one to last ten are dis-
played each time this button is pressed. (*1)
MD/CD 2 The reasons of “NO DISC” from latest one to last ten are
displayed each time this button is pressed. (*2)
CD 16Reset the count of mechanical error.
CD 26Reset the count of “NO DISC”.
(*1) Mechanical error code
MD SECTION
1. OPERATING THE ERROR HISTORY MODE
All operations are performed using the MULTI JOG dial
and PROGRAM button.
1. Enter the test mode for MD function. (*1)
2. Turn the MULTI JOG dial and display “ERR DP MODE”.
3. Press the ENTER/YES button, therefor enter the error his-
tory mode and change the display “total rec”.
4. Press the EDIT/NO button, therefor end the error history
mode and change the display “ERR DP MODE”.
(*1) See the “SECTION 4 TEST MODE” (page 21) for
detail of test mode.
Table 1.
Contents Function Display
total rec Total time of laser power high. r h
About 20% of total recording time.
total play Total time of playback. p h
retry error Total count of record and playback r p
retry error.
total error Total count of error. total
err history Error contents display of from 0 E (*2)
latest one“00” to last ten “09”.
(Turn the MULTI JOG dial and
change the error NO.)
err refresh Press the PROGRAM button and complete
(*3) clear the error histories memory
2. OPERATING THE DISPLAYED HISTORYS
1. Turn the MULTI JOG dial and change the display of error
history contents.
2. Press the PROGRAM button and display error history func-
tion.
3. Press the PROGRAM button again and back the display of
error history contents.
(*2) See table 1-1. for contents of each error code.
(*3) Error refresh with optical pick-up exchange, another not ex-
ecute.
Table 1-1.
Display Contents
(error No./code)
0: E00 No error
0: E01 Disc error PTOC does not read
0: E02 Disc error UTOC does not read
0: E03 Loading error
0: E04 Address does not read
0: E05 Out of FOK
0: E06 Focus does not work
0: E07 Retry of record
0: E08 Record retry error
0: E09 Retry of Playback
0: E0A Playback retry error
(a) The number of Mechanical error.
Latest one “00” to last ten “09”
(Turn the MULTI JOG dial and change the error No.)
(b) “FF”: Mechanical error, when mechanical initialize to
completion.
Others: Mechanical error in the midst of mechanical initialize.
(c) “4*”: Mechanical error in the midst of mechanical initial-
ize, when sub tray set into the stocker.
“5*”: Mechanical error in the midst of mechanical initial-
ize, when sub tray take out to the stocker.
(d) “2*”: Mechanical error in the midst of elevator moving.
(*2) NO DISC error code
(a) The number of NO DISC error.
Latest one “00” to last ten “09”
(Turn the MULTI JOG dial and change the error No.)
(b) “01”: Focus error
“02”: GFS error
“03”: Set up error
(c) “00”: NO DISC error (Does not chucking retry)
“02”: NO DISC error (Chucking retry to completion)
(d) The status, when judged NO DISC error.
“3*”: Stop
“4*”: Set up
“5*”: TOC read
“6*”: Access
“7*”: Play
“8*”: Pause
“9*”: Manual search (Play)
M0 =
(a) (b) (c) (d)
* ******
D0 =
(a) (b) (c) (d)
* ******

– 4 –
TABLE OF CONTENTS
SELF DIAGNOSTICS ...................................................... 2
1. SERVICING NOTES............................................... 4
2. GENERAL ................................................................... 6
3. DISASSEMBLY ......................................................... 8
4. TEST MODE.............................................................. 21
5. ELECTRICAL ADJUSTMENTS
MD Section ..................................................................... 24
CD Section ...................................................................... 29
6. DIAGRAMS
6-1. Printed Wiring Board – BD (CD) Section –.................. 31
6-2. Schematic Diagram – BD (CD) Section –...................... 33
6-3. Printed Wiring Boards – BD (MD) Section – ............... 36
6-4. Schematic Diagram – BD (MD) Section –.................... 39
6-5. Schematic Diagram – SUB Section –............................. 44
6-6. Printed Wiring Board – SUB Section –.........................49
6-7. Printed Wiring Boards – MAIN Section – .................... 52
6-8. Schematic Diagram – MAIN Section –.......................... 55
6-9. Schematic Diagram –PANEL Section – ......................... 60
6-10. Printed Wiring Boards – PANEL Section – .................. 65
6-11. Printed Wiring Boards
– CD (Motor/ Sensor) Section – ....................................67
6-12. Schematic Diagram
– CD (Motor/ Sensor) Section – ..................................... 69
6-13. Printed Wiring Boards
– MD (Motor/ Sensor) Section – .................................... 71
6-14. Schematic Diagram
– MD (Motor/ Sensor) Section – .................................... 73
6-15. Printed Wiring Boards
– POWER/AMPLIFIER Section – .................................75
6-16. Schematic Diagram
– POWER/AMPLIFIER Section – ................................. 77
6-17. Printed Wiring Boards
– DETACHABLE CONTROLLER Section
(RM-MD515) – .............................................................. 79
6-18. Schematic Diagram
– DETACHABLE CONTROLLER Section
(RM-MD515) – ............................................................... 81
6-19. IC Pin Function Description ........................................... 92
7. EXPLODED VIEWS ...............................................107
8. ELECTRICAL PARTS LIST ..............................117
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electro-
static 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
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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-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 COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
SECTION 1
SERVICING NOTES

– 5 –
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.
The CLASS 1 LASER PRODUCT MARKING is located on
the rear exterior.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
The following caution label is located inside the unit.
MODEL IDENTIFICATION
– Back Panel –
MODEL PARTS No.
AEP, UK, German and
North European models 4-993-619-1π
Malaysia and Singapore models 4-993-619-2π
Hong Kong model 4-993-619-3π
US model 4-993-619-4π
Tourist model 4-993-619-6π
PART No.
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing 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
TheAC leakage 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 microampers.).
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 voltage drop across a resistor by means of a
VOM or battery-operated AC voltmeter. The “limit” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 VAC range are suit-
able. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k Ω 0.15 µ FAC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground

– 6 –
SECTION 2
GENERAL
LOCATION OF CONTROLS
– Main Unit (HCD-MD515) –
1GROOVE button and indicator
2Fluorescent indicator tube
3POWER button
4Remote sensor (for optional remote controller)
5MD slots
6MD 1 to 3 indicator
7MD 6button
8CD 1 to 3 6(open/close) button and indicator
9CD disc tray
!º PHONES jack
!¡ DIMMER button
!™ DBFB button and indicator
!£ Remote sensor (for detachable controller)
!¢ Detachable controller terminal
1EDIT/NO button
2ENTER/YES button
3POWER button
4PRESET EQ button
5CLOCK/TIMER SET button
CLOCK/TIMER SELECT button
6TAPE button
MD button
CD button
TUNER (BAND) button
7MANUAL, CONTINUE button
AUTO, SHUFFLE button
PRESET, PROGRAM button
STEREO/MONO, REPEAT button
8FUNCTION button
9DISPLAY button
!º ^button
!¡ pbutton
!™ VOLUME dial
!£ DISC SKIP button
!¢ REC/CD-MD SYNC button
!∞ REC IT button
!§ CD LOOP button
!¶ MD/CD 1 to 3 button
!• MULTI JOG dial
!ª 0Nbutton
)nbutton
– Detachable Controller (RM-MD515) –

– 7 –
This section is extracted from
instruction manual.

– 8 –
SECTION 3
DISASSEMBLY
•This set can be disassembled in the order shown below.
DETACHABLE CONTROLLER
(RM-MD515)
(Page 9)
CABINET (REAR) ASS’Y
(DETACHABLE CONTROLLER)
(Page 9)
MD MECHANISM DECK SECTION (MDM-C1D)
(Page 11)
OPTICAL PICK-UP (KMS-260A/J1N) (for MD)
(Page 15) OPTICAL PICK-UP (KSS-213BA/F-NP) (for CD),
SLED MOTOR (M102)
(Page 19)
CASE
(Page10)
FRONT PANEL SECTION
(Page 10)
MAIN BOARD, SUB BOARD
(Page 11)
HOLDER (FN),
CHASSIS (TOP)
(Page 12)
CHASSIS (ELEVATOR)
(NEW) ASS’Y
(Page 13)
TRAY (SUB)
ASS’Y
(Page 17)
OPTICAL
PICK-UP CLEANING
(Page 18)
OVER WRITE HEAD (HR901)
(Page 15)
SPINDLE MOTOR (M101)
(Page 20)
MD BASE UNIT
(MBU-C1)
(Page 14)
MOTOR (HEAD)
ASS’Y (M905)
(Page 13)
BD (MD) BOARD
(Page 14)
STOCKER ASS’Y
(Page 17)
BD (CD) BOARD
(Page 19)
AMP BOARD
(Page 16)
CD MECHANISM DECK SECTION (CDM48-5BD29)
(Page 16)
CD BASE UNIT (BU-5BD29)
(Page 18)

– 9 –
Note: Follow the disassembly procedure in the numerical order given.
DETACHABLE CONTROLLER (RM-MD515)
CABINET (REAR) ASS’Y (DETACHABLE CONTROLLER)
2 Detachable controller (RM-MD515)
to direction of the arrow.
1 two claws
3 Hold the arrow B
of cabinet (front) ass’y.
B
4 Remove eighth claws as
turn the cabinet (rear) ass’y
to direction of the arrow C .
5 connector
(CN2)
two claws
1 Remove the battery
case lid to direction
of the arrow A .
2 seventh screws
(P2 × 4)
three claws
A
C
three claws
C

– 10 –
CASE
FRONT PANEL SECTION
1 connector
(CN200)
2 screw
(BV3 × 8)
2 two screws
(BV3 × 8)
3 Remove the case to
direction of the arrow.
1 four screws
(case 3TP2)
1 four screws
(case 3TP2)
1 flat wire (19 core)
(CN400)
2 earth lead
5 front panel section
4 two claws
3 three screws
(BV3 × 8)
4 claw
4 two claws

– 11 –
MAIN BOARD, SUB BOARD
1 connector
(CN920)
1 flat wire (11 core)
(CN101)
3 connector
(CN300)
1 connector
(CN900)
2 two screws
(BV3 × 8)
1 connector
(CN112)
6 flat wire (17 core)
(CNP13)
9 SUB board
6 flat wire (23 core)
(CN600)
6 flat wire (17 core)
(CN601)
7 two screws
(BV3 × 8)
6 flat wire (23 core)
(CN500)
1 connector
(CN911)
8 PC board holder
6 connector
(CN912)
7 screw (BV3 × 8)
2 screw (BV3 × 8)
4 two PC board holders
MD MECHANISM DECK SECTION (MDM-C1D)
3 two screws
(BV3 × 8)
1 two screws
(BV3 × 8)
5 two screws
(BV3 × 8)
3 screw
(BV3 × 8)
3 screw
(BV3 × 8)
4 cover (MDM)
5 two screws
(BV3 × 8)
6 MD mechanism deck section
(MDM-C1D)
2 REG 5V, 7V board
1 flat wire (19 core)
(CN401)
5 MAIN board

– 12 –
HOLDER (FN), CHASSIS (TOP)
NOTE FOR INSTALLATION OF BRACKET (3)
bracket (3)
lever (s) ass’y
7 two screws
(BVTT2.6 × 5)
8 chassis (TOP)
4 screw
(BVTT2.6 × 5)
7 two screws
(PTP2 × 5)
6 bracket (3)
3 flat wire (13 core)
(CNP12)
3 flat wire (7 core)
(CNP15)
5 lever (S) ass’y
1 four screws
(BVTT2.6 × 5)
2 holder (FN)
screw (BVTT2.6 × 5)
1Lift up the lever (S) ass’y.
2Hang the lever (S) ass’y for bracket (3).
3Slide the lever (S) ass’y to direction of the arrow.

– 13 –
CHASSIS (ELEVATOR) (NEW) ASS’Y
8 MOTOR RELAY board
2 belt A
B
7 Break the soldering of motor.
6 Remove the motor (head)
ass’y to direction of the arrow B .
1 Remove the chassis (elevator) (new)
ass’y to direction of the arrow.
MOTOR (HEAD) ASS’Y (M905)
3 screw
(BVTT2.6 × 5)
5 two screws
(P2 × 2)
A
1 connector (CNP19)
4 Remove the chassis (head gear)
ass’y to direction of the arrow A .

– 14 –
1 two step screws
chassis (elevator)
2 MD base unit
(MBU-C1)
1 two step screws
3 connector
(CN108)
over write head
Take care not to catch.
3 screw
(BTP2 × 6)
4 BD (MD) board
5 OP translation
flexible board
(CN101)
1 two connectors
(CN104, 109)
2 two precision screws
(P1.7 × 2.5)
MD BASE UNIT (MBU-C1)
BD (MD) BOARD

– 15 –
OPTICAL PICK-UP (KMS-260A/J1N) (for MD)
4 Remove the optical pick-up
(KMS- 260A/J1N) (for MD)
to direction of the arrow.
3 shaft (main)
1 screw
(M1.7 × 1.4)
2 stopper
OVER WRITE HEAD (HR901)
2 over write head
(HR901)
1 screw
(P1.7
× 2.5)

– 16 –
AMP BOARD
7 connector
(CN802)
5 two screws
(BV3 × 8)
6 chassis
5 two screws
(BV3 × 8)
7 connector
(CN801)
5 two screws (BV3 × 8)
8 AMP board
4 Pullthe heat sink.
2 cover (back)
1 three screws
(BV3 × 8)
1 two screws
(BV3 × 8)
3 two screws
(BVTT3 × 8)
3 two screws
(BV3 × 8)
CD MECHANISM DECK SECTION (CDM48-5BD29)
2 CD mechanism deck section
(CDM48-5BD29)
1 two screws
(BV3 × 8)
1 two screws
(BV3 × 8)

– 17 –
STOCKER ASS’Y
2 tray (sub) ass’y
1 Pull the slider (selection).
TRAY (SUB) ASS’Y
4 three screws
(BVTT3 × 6)
1 two screws
(BVTT3 × 6)
1 two screws
(BVTT3 × 6)
3 two levers (stock)
5 stocker ass’y
2 Remove the bracket
(sub chassis) to
direction of the arrow.

– 18 –
CD BASE UNIT (BU-5BD29)
5 Remove the CDbaseunit(BU-5BD29)
to direction of the arrow.
2 two screws
(BV3 × 8)
4 four screws
(BV3 × 8)
1 connector
(CN691)
3 CDM board
1 three connectors
(CN692, 693, 694)
OPTICAL PICK-UP CLEANING
applicator
opticalpick-up
Note 1: In cleaning the lens, do not apply an excessive force.
As the optical pick-up is vulnerable, application of
excessive force could damage the lens holder.
Note 2: In cleaning, do not use a cleaner other than exclusive cleaning
liquid (KK-91 or isopropyl alcohol).
Note 3: Wipe the objective lens spirally from center toward outside.
(See Figure A)
(Figure A)

– 19 –
1 two screws
(PTPWH M2.6 × 6)
BD (CD) BOARD
5 screw
(BVTP2.6 × 8)
6 Remove the
four solders.
3 two springs
1 two screws
(PTPWH M2.6 × 6)
2 optical pick-up section
3 two springs
4 flat wire (16 core)
(CN101)
7 BD (CD) board
1 claw
2 sled shaft
3 optical pick-up (KSS-213 BA/F-NP) (for CD)
4 two screws
(P 2 × 3)
5 sled motor
(M102)
limit switch
(S101)
OPTICAL PICK-UP (KSS-213BA/F-NP) (for CD), SLED MOTOR (M102)

– 20 –
SPINDLE MOTOR (M101)
6 Turn the lever.
8 spindle motor
(M101)
1 two insulators (BU)
7 flatness gear (P)
3 Turn the lever.
1 two insulators (BU)
2 claw
4 gear (M)
5 claw