Sony HCDGP-5 Service manual

HCD-GP5
SERVICE MANUAL
Ver 1.5 2004.10
HCD-GP5 is the Amplifier, CD player, Tape Deck and Tuner section in CMT-GP5.
CD Section
TAPE Section
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Model Name Using Similar Mechanism NEW CD Mechanism Type CDM55A-K6BD44B Base Unit Name BU-K1BD44B Optical Pick-up Name KSM-213D Model Name Using Similar Mechanism NEW Tape Transport Mechanism Type CMAL1Z240A
Amplifier section
AUDIO POWER SPECIFICATIONS: (U.S.A. model only)
POWER OUTPUT AND TOTAL HARMONIC DISTORTION: With 6-ohm loads, both channels driven, from 120 ­10,000 Hz; rated 35 watts per channel minimum RMS power, with no more than 10% total harmonic distortion from 250 milliwatts to rated output. North American model: Continuous RMS power output (reference):
European model: DIN power output (rated): 30 + 30 W
Continuous RMS power output (reference):
Music power output (reference ):
Other models: The following measured at AC 230 V or AC 120 V, 50/ 60 Hz DIN power output (rated): 30 + 30 W
Continuous RMS power output (reference):
35 + 35 W (6 ohms at 1 kH z, 10% THD)
(6 ohms at 1 kH z, DIN)
30 + 30 W (6 ohms at 1 kH z, 10% THD)
60 + 60 W
(6 ohms at 1 kH z, DIN)
30 + 30 W (6 ohms at 1 kH z, 10% THD)
SPECIFICATIONS
Inputs MD IN (phono jacks):
Outputs PHONES (stereo minijack):
SPEAKERS: Accepts impedance of 6 to
CD player section
System Compact disc and digital
LaserSemiconductor laser
Frequency response 2 Hz – 20 kHz (±0.5 dB)
Tape deck section
Recording system 4-track 2-channel stereo Frequency response 50 – 13,000 Hz (±3 dB),
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Sensitivity 500 mV, impedance 47 kilohms
Accepts headphones with an impedance of 8 ohms or more
16 ohms.
audio system
λ
=780 nm)
( Emission duration: continuous
using Sony TYPE I cassettes
Tuning range 87.5 – 108.0 MHz (50-kHz
Antenna FM lead antenna Antenna terminals 75 ohms balanced Intermediate frequency 10.7 MHz
AM tuner section
Tuning range Pan-American model: 530 – 1,710 kHz
European model: 531 – 1,602 kHz
Other models: 530 – 1,710 kHz
Antenna AM loop antenna, external
Intermediate frequency 450 kHz
step)
(with the tuning interval set at 10 kHz) 531 – 1,710 kHz (with the tuning interval set at 9 kHz)
(with the tuning interval set at 9 kHz)
(with the tuning interval set at 10 kHz) 531 – 1,602 kHz (with the tuning interval set at 9 kHz)
antenna terminal
— Continued on next page —
9-877-380-06
2004J16-1 © 2004.10
Sony Corporation
Personal Audio Company Published by Sony Engineering Corporation
HCD-GP5
Ver 1.3 2004.01

TABLE OF CONTENTS

General
Power requirements North American model: 120 V AC, 60 Hz European model: 230 V AC, 50/60 Hz Australian model: 230 - 240 V AC, 50/60 Hz Hong Kong model: Singaporean model: Other models:
Power consumption North American model: 60 watts European model: 60 watts
Other models: 60 watts Dimensions (w/h/d) Approx. 190 × 250 × 270
Mass Approx. 4.6 kg
Design and specifications are subject to change without notice.
220 - 240 V AC, 50/60 Hz 220 - 240 V AC, 50/60 Hz 110 - 120 V or 220 - 240 V AC, 50/60 Hz Adjustable with voltage selector
0.3 watts (in the standby mode)
mm
1. SERVICING NOTES ······················································· 3
2. GENERAL ··········································································5
3. DISASSEMBLY
3-1. Top Cabinet, Rear Panel·················································· 7 3-2. Front Panel Assy ····························································· 8 3-3. CONTROL Board, Single Cassette Mechanism············· 8 3-4. CD Mechanism Deck (CDM55A-K6BD44B)················ 9 3-5. MAIN Board, TRANSFORMER Board······················· 10 3-6. LOADING Board·························································· 10 3-7. CD Board ······································································ 11 3-8. Tray (CDM55D) ··························································· 11 3-9. Optical Pick-up (KSM-213D), Holder (C213) ············· 12
4. MECHANICAL ADJUSTMENTS ····························· 13
5. ELECTRICAL ADJUSTMENTS ······························· 14
6. DIAGRAMS······································································ 17
6-1. Block Diagram ······························································ 19 6-2. Printed Wiring Board – CD Section – ························· 20 6-3. Schematic Diagram – CD Section – ···························· 21 6-4. Printed Wiring Board – Control Section – ··················· 22 6-5. Schematic Diagram – Control Section –······················ 23 6-6. Printed Wiring Boards – Main Section – ····················· 24 6-7. Schematic Diagram – Main Section (1/4) –················· 25 6-8. Schematic Diagram – Main Section (2/4) –················· 26 6-9. Schematic Diagram – Main Section (3/4) –················· 27 6-10. Schematic Diagram – Main Section (4/4) –··············· 28 6-11. Printed Wiring Board – Power Section – ··················· 29 6-12. Schematic Diagram – Power Section –······················ 30 6-13. IC Pin Function Description ······································· 35
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.
ATTENTION AU COMPOSANT AYANT 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.
7. EXPLODED VIEWS
7-1. Overall Section ····························································· 37 7-2. Front Panel Section ······················································· 38 7-3. Chassis Section ····························································· 39 7-4. CD Mechanism Deck Setion········································· 40 7-5. KSM-213D···································································· 41
8. ELECTRICAL PARTS LIST ······································· 42
2
SECTION 1
r
SERVICING NOTES
HCD-GP5
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 leakag e 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 voltage 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 must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM tha t is suitable. Nearly all battery operated digital multimeters that have a 2 V A C range are suitable. (See Fig. A)
To Exposed Metal Parts on Set
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 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.
1.5 k
0.15 µF
Fig. A. Using an AC voltmeter to check AC leakage.
Earth Ground
AC voltmete (0.75 V)
3
HCD-GP5
Service Position of the CD Mechanism Deck
MAIN Board
CD Mechanism Deck (CDM55A-K6BD44B)
Service Position of the Tape Cassette Mechanism Deck
MAIN Board
Tape Cassette Mechanism Deck (CMAL1Z240A)
4
SECTION 2
Illustrati
GENERAL
List of button locations and reference pages
HCD-GP5
This section is extracted from instruction manual.
How to use this page
Use this pa ge to fin d th e lo c atio n o f b u tto ns an d o th e r parts of the system that are mentioned in the text.
Main unit
ALPHABETICAL ORDER
A – M
Cassette compartment qg CD SYNC qd (12) DIRECTION 9 (11, 12, 15) Disc tray 4 DISPLAY 8 (9, 10, 16) Display window 3 DSG qa (13) MD qj (17)
P – Z
PHONES jack qh PLAY MODE/TUNING MODE
9 (6, 7) Remote sensor 2 TUNER/BAND qj (8, 9) TUNING +/– 6 (8 , 9) VOLUME +/– 7 (14, 15)
12 345
on number
r
DISPLAY 8 (9, 10, 16)
Name of button/par t Reference page
RR
BUTTON DESCRIPTIONS
?/1 (po w e r) 1 (5, 9, 14, 15) .m/ M> (go back/go
forward or fast forward/ rewind) 6 (5, 6, 7, 11, 12, 14,
15, 16) x (stop) qs (6, 7 , 11, 12, 20) REC PAUSE/START z qf (12,
15) CD NX (play/pause) qk (6 , 7) TAPE nN (play) qk (11, 12,
15)
Z (CD open/close) 5 (6) Z PUSH (tape open/close) 0
(11)
qk qj
qh
6 7
8 9
qdqfqg
0qaqs
5
HCD-GP5
Remote control
ALPHABETICAL ORDER
A – M
BASS +/– 0 (13) CLEAR 8 (8, 9) CLOCK/TIMER SELECT w;
(14, 15)
CLOCK/TIMER SET wa (5, 14,
15) DISPLAY 2 (9, 10, 16) DSG qa (13) MD qk (17)
wa w;
ql qk
qj
qh
qg
qf
P – Z
PLAY MODE/DIRECTION qd
(6, 7, 11, 12, 15) PRESET +/– 5 (9) REPEAT/FM MODE qf (7, 9) SLEEP ql (13) TREBLE +/– 9 (13) TUNER BAND qh (8, 9) TUNER MEMORY qs (8) TUNING +/– 6 (8, 9) VOL +/– 7 (14, 15)
BUTTON DESCRIPTIONS
?/1 (power) 1 (5, 9, 14, 15) m/M (fast forward/re wind)
6 (6, 11)
./ > (go back/go forward)
5 (5, 6, 7, 12, 14, 15, 16)
x (s top) 4 (6, 7, 11, 12, 20) X (pa us e) 3 (6, 11)
CD N (play) qj (6, 7) TAPE nN (play) qg (11, 12,
15)
1 2
3 4
5
6
qd
qs
qa
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 CLOCK/TIMER SET.
4
Press ./> repeatedly to set the
5
minute. Press CLOCK/TIMER SET.
6
The clock starts working.
To adjust the clock
Press CLOCK/TIMER SET.
1
Press ./> to select “CLOCK”, then
2
press CLOCK/TIMER SET. Do the same procedures as step 3 to 6
3
above.
7
8
9
0
6
• This set can be disassembled in the order shown below.
SET
TOP CABINET, REAR PANEL
FRONT PANEL ASSY
SECTION 3
DISASSEMBLY
HCD-GP5
Ver 1.2 2003.11
CD MECHANISM DECK (CDM55A-K6BD44B)
MAIN BOARD, TRANSFORMER BOARD
Note: Follow the disassembly procedure in the numerical order given.
CONTROL BOARD, SINGLE CASSETTE MECHANISM
LOADING BOARD CD BOARD TRAY (CDM55D)

3-1. Top Cabinet, Rear Panel

5
2
three s
(+KTP 3
crews
×
12)
top cabinet
a
3
six s
crews
(+BVTP 3
OPTICAL PICK-UP (KSM-213D), HOLDER (C213)
×
10)
qa
rear panel
a
9
three s
(+BVTP 3
crews
×
10)
4
1
three s
(+KTP 3
crews
×
12)
7
two s
crews
b
b
6
w
ire (flat type)
11p
CN304
q;
tuner (FM/AM)
(+BVTP 3
8
(+BVTP 3
three s
×
10)
crews
×
10)
7
HCD-GP5

3-2. Front Panel Assy

6
w
ire (flat type) 26p (CN302)
q;
front panel assy
2
CD lid
7
connector 5p (CN1)
5
w
ire (flat type) 13p (CN303)
1
four claws
4
four s
(+BVTP 3
crews
×
10)
3
two s
(+KTP 3
crews
×
12)

3-3. CONTROL Board, Single Cassette Mechanism

7
CONTROL
6
w
ire (flat type) 8p (CN603)
board
8
connector 6p
9
connector 5p (CN201)
1
three s
crews (+BVTP 3
2
four s
crews (+BVTP 3
3
four s
4
×
10)
×
10)
crews (+BVTP 3
w
ire (flat type) 26p (CN601)
×
10)
5
w
ire (flat type) 13p (CN602)
8
four s
crews
×
10)
9
two clamp
q;
single cassette mechanism (CMAL1Z240A)
(+BVTP 3
8

3-4. CD Mechanism Deck (CDM55A-K6BD44B)

)
1
CD plate
7
CD mechanism deck
(CDM55A-K6BD44B)
5
6
CD holder
4
s
crew (+BVTP 3
CN101
×
10)
3
w
ire (flat type) 21p (CN101,305
HCD-GP5
CN305
2
s
crew (+BVTP 3
×
10)
9
HCD-GP5
)

3-5. MAIN Board, TRANSFORMER Board

q;
four s
(+BVTP 3
qs
TRANSFORMER
board
crews
×
10)
6
two s
(+BVTP 3
qa
power transformer
5
main heat sink
crews
1
×
10)
connector 9p (CN801)
8
sub heat sink
7
two s
crews
(+BVTP 3
9
×
10)
MAIN board
3
three s
(+BVTP 3
crews
×
10

3-6. LOADING Board

1
Remove the belt.
4
two s
(+BVTP 3
crews
×
10)
2
two s
crews (+BVTP 3
×
10)
10
4
motor
(M901)
(LD) assy
2
two
screws (+BTP 2.6
3
Remove soldering from the two points.
5
LOADING board
×
6)
p

3-7. CD Board

4
wire (flat type) 21p (CN101)
2
Remove soldering
from the four points.
1
screw(+P 2.6
5
CD board
×
5)
3
wire (flat type) 16
HCD-GP5

3-8. Tray (CDM55D)

1
While pressing the two protrusions A and B to unlock the two claws as shown,
pull the tray in the direction of the arrow C. (Be careful of the claws.)
A
claw
claw
C
2
tray
B
11
HCD-GP5
s
Ver 1.2 2003.11
3-9. Optical Pick-up (KSM-213D), Holder (C213)
3
5
screw (+PTTP M2.6)
6
stopper (BU)
7
compression spring
(T213)
8
insulator
qd
optical pick-up
(KSM-213D)
qg
holder
(C213)
insulator
2
two compression spring
1
(+PTPWH M2.6)
4
9
screw (+PTTP M2.6)
q;
stopper (BU)
qa
compression spring
(T213)
qs
insulator
qf
floating
(+PTPWH M2.6)
(T213)
two floating
insulator
screws
screw
12
SECTION 4
MECHANICAL 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
HCD-GP5
Mode
FWD
FWD back tension
REV
REV back tension
FF/REW
FWD tension
REV tension
Torque meter Meter reading
3.04 – 6.96 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)
0.20 – 0.58 mN • m (2 to 6 g • cm)
(0.02 – 0.08 oz • inch)
3.04 – 6.96 mN • m
(31 to 71 g • cm)
(0.43 – 0.98 oz • inch)
0.20 – 0.58 mN • m (2 to 6 g • cm)
(0.02 – 0.08 oz • inch)
6.97 – 14.02 mN • m (71 to 143 g • cm)
(0.98 – 1.99 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)
13
HCD-GP5
SECTION 5
ELECTRICAL ADJUSTMENTS
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 J203 speaker terminal
set
Azimuth Adjustment
Tape Speed Adjustment
level meter
+ –
3. Mode: Playback
test tape P-4-A100 (10kHz, –10dB)
set
in phase 45
MAIN board J203 speaker terminal
L
R
Waveform of oscilloscope
°
90
°
good
135
oscilloscope
°
wrong
180
°
4. After the adjustments, apply suitable locking compound to the parts adjusted.
Adjustment Location:Record/Playback/Erase Head
[Tape Speed Check]
Procedure:
1. Turn the power on.
2. Insert the WS-48B into deck.
3. Press the Y button of deck.
4. Check the reading of frequency counter becomes 3000 ± 90 Hz.
Sample Value of Wow and flutter
W.RMS (JIS) less than 0.3% (test tape: WS-48B)
L-CH peak
screw position
14
R-CH peak
output level
within 1 dB
L-CH peak
R-CH peak
within 1dB
screw position
HCD-GP5
+ –
CD board
TP (RFAC)
TP (VC)
oscilloscope
CD SECTION
Note:
1. CD Block is basically designed to operate without adjustment. There­fore, check each item in order given.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10M impedance.
4. Clean the 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:
oscilloscope
CD board
TP (FE)
TP (DVC)
Procedure:
1. Connect an oscilloscope to test point TP (FE) and TP (DVC)
on the CD board.
2. Turn the power on.
3. Put the 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)
4. Check the oscilloscope waveform (S-curve) is symmetrical
between A and B. And confirm peak to peak level within 2 ± 1 Vp-p.
S-curve waveform
+ –
symmetry
A
B
within 2
±
1 Vp-p
RFDC signal waveform
VOLT/DIV: 200 mV TIME/DIV: 500 ns
level: 0.7
±
0.2 Vp-p
Checking Location: CD board (Conductor side)
RFAC Level Check
Connection:
Procedure:
1. Connect an oscilloscope to test point TP (RFA C) and TP (VC) on the CD board.
2. Turn the power on.
3. Put the disc (YEDS-18) in to playback the number five track.
4. Confirm that oscilloscope waveform is clear and check RF AC signal level is correct or not.
Note: A clear RFAC signal waveform means that the shape “” can be
clearly distinguished at the center of the waveform.
RFAC signal waveform
VOLT/DIV: 200 mV TIME/DIV: 500 ns
Note: •Try to measure several times to make sure than 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.
Checking Location: CD board (Conductor side)
RFDC Level Check
Connection:
oscilloscope
CD board
TP (RFDC)
TP (DVC)
+ –
Procedure:
1. Connect an oscilloscope to test point TP (RFDC) and TP (DVC) on the CD board.
2. Turn the power on.
3. Put the disc (YEDS-18) in to playback the number five track.
4. Confirm that oscilloscope waveform is clear and check RFDC signal level is correct or not.
Note: A clear RFDC signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
level: 0.9
Checking Location: CD board (Conductor side)
±
0.4 Vp-p
15
HCD-GP5
E-F Balance Check
Connection:
oscilloscope
CD board
TP (TE)
TP (DVC)
+ –
Procedure:
1. Connect an oscilloscpe to test point TP (TE) and TP (DVC) on the CD board.
2. AC is put in pushing CD u button.
3. FL tube carries out all lights and goes into CD test mode.
4. Put the disc (YEDS-18) in to playback the number five track.
5. Press the CD u button. (The tracking servo and the sledding servo are turned OFF)
6. Check the level B of the oscilliscope's waveform and the A (DC voltage) of the center of the Traverse waveform. Confirm the following : A/B x 100 = less than ± 22%
Tr averse Waveform
0V
Center of the waveform
B
A (DC
voltage)
Checking Location:
– CD BOARD (Conductor Side) –
TP (VC)
IC103
TP
(RFAC)
TP (TE)
TP (FE)
TP
(DVC)
IC101
TP
(RFDC)
level: 1.15 ± 0.5 Vp-p
7. Press the CD u button. (The tracking servo and sledding servo are turned ON) Confirm the C (DC voltage) is almost equal to the A (DC voltage) is step 4.
8. To exit from this mode, turn the power off.
Notes: •Always move the optical pick-up to most inside track when
0V
exiting from this mode. Otherwise, a disc will not be unloaded.
• Do not run the sled motor excessively, otherwise the gear can be chipped.
Tr averse Waveform
Tr acking servo
Sled servo
OFF
Tr acking servo
Sled servo
ON
C (DC voltage)
Checking Location: CD board (Conductor side)
16
Loading...
+ 36 hidden pages