Sony HCD-GPZ6 User manual

SERVICE MANUAL
US and foreign patents licensed from Dolby
Laboratories.
COMPACT DISC DECK RECEIVER
AEP Model
HCD-GPZ7
UK Model
Australian Model
HCD-GPZ6
E Model
HCD-GPZ6/GPZ7
SPECIFICATIONS
HCD-GPZ6/GPZ7
Ver. 1.1 2005.05
9-879-578-02
2005E05-1
© 2005.05
Sony Corporation
Personal Audio Group
Published by Sony Engineering Corporation
•HCD-GPZ6 is the amplifier, CD player, tape
deck and tuner section in CMT-GPZ6.
•HCD-GPZ7 is the amplifier, CD player, tape
deck and tuner section in CMT-GPZ7. Photo: HCD-GPZ6
Model Name Using Similar Mechanism NEW
CD CD Mechanism Type CDM80B-F1BD83
Section Base Unit Name BU-F1BD83
Optical Pick-up Block Name KSM-215DCP
Tape deck Model Name Using Similar Mechanism NEW
Section Tape Transport Mechanism Type CMAL5Z232A
PHONES (stereo mini jack):
accepts headphones with
an impedance of 8 ohms or
more
SPEAKER: accepts impedance of 6 to
16 ohms
CD player section
System Compact disc and digital
audio system
Laser Diode Properties Emission duration:
continuous
Laser Output*:
Less than 44.6 µW
*Thisoutput is the value measurement at a distance of
200 mm from the objective lens surface on the
Optical Pick-up Block with 7 mm aperture.
Frequency response 20 Hz – 20 kHz (±0.5 dB)
Wavelength 780 – 790 nm
Tape deck section
Recording system 4-track 2-channel stereo
Frequency response 50 – 13,000 Hz (±3 dB),
using Sony TYPE I
cassettes
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz
Aerial FM lead aerial
Aerial terminals 75 ohms unbalanced
Intermediate frequency 10.7 MHz
Amplifier section
HCD-GPZ7
European model:
DIN power output (rated): 40 + 40 W (6 ohms at
1kHz,DIN)
Continuous RMS power output (reference):
60 + 60 W (6 ohms at
1kHz,10% THD)
Music power output (reference):
100 + 100 W (6 ohms at
1kHz,10% THD)
Other models:
Thefollowing measuredatAC240 V, AC 220 V or AC
120 V
DIN power output (rated): 40 + 40 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
60 + 60 W
(6 ohms at 1 kHz, 10%
THD)
HCD-GPZ6
European model:
DIN power output (rated): 40 + 40 W (6 ohms at
1kHz,DIN)
Continuous RMS power output (reference):
50 + 50 W (6 ohms at
1kHz,10% THD)
Music power output (reference):
90 + 90 W (6 ohms at
1kHz,10% THD)
Other models:
Thefollowing measuredatAC240 V, AC 220 V or AC
120 V
DIN power output (rated): 30 + 30 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference):
40 + 40 W
(6 ohms at 1 kHz, 10%
THD)
Inputs
ANALOG IN (stereo mini jack):
Sensitivity 250 mV,
impedance 47 kilohms
Outputs
CD DIGITAL OUT: Optical Wavelength:
660 nm
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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2
HCD-GPZ6/GPZ7
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.
CAUTION
Use of controls or adjustments or performance of procedures
otherthan those specifiedherein may resultinhazardous radiation
exposure. SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0ON 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.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
List of playable discs
Discs that this system cannot
play
•CD-ROMs
•CD-Rs/CD-RWs other than those recorded in
the following formats:
–music CD format
–ATRAC3plus format and MP3 format that
conform to ISO96601) Level 1/Level 2,
Joliet or Multi Session2)
•Discs with non-standard shapes (e.g., heart,
square, star) cannot be played on this unit.
Attempting to do so may damage the unit. Do
not use such discs.
•Adisc with paper or stickers on it.
•Adisc that has the adhesive, cellophane tape,
or a sticker still left on it.
•An 8 cm disc with an adaptor
1) ISO9660 Format
The most common international standard for the
logical format of files and folders on a CD-ROM.
There are several specification levels. In Level 1,
file names must be in the 8.3 format (no more than
eight characters in the name, no more than three
characters in the extension) and in capital letters.
Foldernames canbenolonger thaneightcharacters.
There can be no more than eight nested folder
levels. Level 2 specifications allow file names and
folder names up to 31 characters long. Each folder
can have up to 8 trees.
For Joliet in the expansion format (file and folder
names can have up to 64 characters) make sure of
the contents of the writing software, etc.
2) Multi Session
This is a recording method that enables adding of
data using the Track-At-Once method.
Conventional CDs begin at a CD control area called
the Lead-in and end at an area called Lead-out. A
Multi Session CD isa CD having multiple sessions,
with each segment from Lead-in to Lead-out
regarded as a single session.
CD-Extra: This format records audio (audio CD
data) on the tracks in session1 and dataonthetracks
in session 2.
Mixed CD: This format records data on the first
track and audio (audio CD data) on the second and
subsequent tracks of a session.
Format of discs Disc logo
Audio CDs
CD-R/CD-RW
(audio data, ATRAC3plus
files, MP3 files)
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 model: 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)
Aerial AM loop aerial
Aerial terminals External aerial terminal
Intermediate frequency 450 kHz
General
Power requirements
European model: 230 V AC, 50/60 Hz
Korean model: 220 V AC, 60 Hz
Australian model: 230 – 240 V AC, 50/60 Hz
Argentine model: 220 V AC, 50/60 Hz
Other models: 120 V, 220 V or
230 – 240 V AC, 50/60 Hz
Adjustable with voltage
selector
Power consumption
HCD-GPZ7
European model: 100 W
0.25 W (in Power Saving
Mode)
Other models: 105 W
HCD-GPZ6
European model: 90 W
0.25 W (in Power Saving
Mode)
Other models: 75 W
Dimensions (w/h/d) (excl. speakers)
Approx. 181 ×261 ×
297 mm
Mass (excl. speakers)
Amplifier/Tuner/Tape/CD section:
HCD-GPZ7: 6.1 kg
HCD-GPZ6: 5.8 kg
Design and specifications are subject to change
without notice.
Ver. 1.1
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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3
HCD-GPZ6/GPZ7
TABLE OF CONTENTS
1. SERVICING NOTES ............................................... 4
2. GENERAL ................................................................... 5
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 6
3-2. Panel (Side L)/(Side R) ................................................... 7
3-3. Top Block Section ........................................................... 7
3-4. Front Panel Block ............................................................ 8
3-5. MAIN Board.................................................................... 8
3-6. CD Block Assy ................................................................ 9
3-7. Base Unit (BU-F1BD83)................................................. 9
3-8. BD Board......................................................................... 10
3-9. CD Mechanism Deck (CDM80B-F1BD83).................... 10
3-10. Holder (BU215) Assy ...................................................... 11
3-11. Chassis (Top) ................................................................... 11
3-12. Lever (Loading-L/R) ....................................................... 12
3-13. Lever (Disc Sensor)/(Disc Stop) ..................................... 13
3-14. DRIVER Board ............................................................... 13
3-15. Lever (BU Lock) ............................................................. 14
3-16. Close Lever...................................................................... 14
3-17. Lever (DIR), Gear (IDL-B) ............................................. 15
3-18. Gear (IDL-C) ................................................................... 15
3-19. AU-TC Board .................................................................. 16
3-20. Mechanical Deck (CMAL5Z232A) ................................ 16
4. TEST MODE.............................................................. 17
5. MECHANICAL ADJUSTMENTS ....................... 19
6. ELECTRICAL ADJUSTMENTS ......................... 19
7. DIAGRAMS
7-1. Block Diagram – CD SERVO/TUNER Section –........... 20
7-2. Block Diagram – MAIN Section –.................................. 21
7-3. Block Diagram
– PANEL/POWER SUPPLY Section – ........................... 22
7-4. Printed Wiring Board – BD Board – ............................... 24
7-5. Schematic Diagram – BD Board – .................................. 25
7-6. Printed Wiring Board – DRIVER Board – ...................... 26
7-7. Schematic Diagram – DRIVER Board –......................... 26
7-8. Printed Wiring Board – AU-TC Board – ......................... 27
7-9. Schematic Diagram – AU-TC Board (1/2) – ................... 28
7-10. Schematic Diagram – AU-TC Board (2/2) – ................... 29
7-11. Printed Wiring Board – MAIN Board – .......................... 31
7-12. Schematic Diagram – MAIN Board (1/2) – .................... 32
7-13. Schematic Diagram – MAIN Board (2/2) – .................... 33
7-14. Printed Wiring Boards – AMP Section –......................... 34
7-15. Schematic Diagram – AMP Section – ............................. 35
7-16. Printed Wiring Board – PANEL (1) Board –................... 36
7-17. Schematic Diagram – PANEL (1) Board – ..................... 37
7-18. Printed Wiring Boards – JACK Section – ....................... 38
7-19. Schematic Diagram – JACK Section –............................ 39
7-20. Printed Wiring Board – POWER Board – ....................... 40
7-21. Schematic Diagram – POWER Board –.......................... 41
7-22. Printed Wiring Board – SUB PT Board – ....................... 42
7-23. Schematic Diagram – SUB PT Board – .......................... 43
8. EXPLODED VIEWS
8-1. Overall Section ................................................................ 52
8-2. Panel Board Section ........................................................ 53
8-3. Front Panel Section ......................................................... 54
8-4. Top Block Section ........................................................... 55
8-5. CD Block Section ............................................................ 56
8-6. Chassis Section................................................................ 57
8-7. CD Mechanism Deck Section-1 (CDM80B-F1BD83) ... 58
8-8. CD Mechanism Deck Section-2 (CDM80B-F1BD83) ... 59
8-9. CD Mechanism Deck Section-3 (CDM80B-F1BD83) ... 60
8-10. CD Mechanism Deck Section-4 (CDM80B-F1BD83) ... 61
8-11. Base Unit Section (BU-F1BD83).................................... 62
9. ELECTRICAL PARTS LIST................................ 63
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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4
HCD-GPZ6/GPZ7
•MODEL IDENTIFICATION
MODEL PART No.
GPZ7: AEP, EE, RU 2-591-366-0[]
GPZ7: AR 2-591-366-2[]
GPZ6: UK 2-591-366-3[]
GPZ6: AUS 2-591-366-4[]
GPZ6: KR 2-591-366-5[]
GPZ6: AR 2-591-366-6[]
GPZ7: E 2-591-367-0[]
GPZ7: E51 2-591-367-1[]
GPZ6: SP 2-591-367-3[]
GPZ7: MX 2-591-367-4[]
•Abbreviation
AR : Argentina model
AUS:Australian model
E51 : Chilean and Peruvian models
EE : East European model
KR : Korean model
MX : Mexican model
RU : Russian model
SP : Singapore model
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 pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
SECTION 1
SERVICING NOTES
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with
the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
•Unleaded solder melts at a temperature about 40 °C higher
than ordinary solder.
Ordinary soldering irons can be used but the iron tip has to be
applied to the solder joint for a slightly longer time.
Soldering irons using a temperature regulator should be set to
about 350 °C.
Caution: The printed pattern (copper foil) may peel away if
the heated tip is applied for too long, so be careful!
•Strong viscosity
Unleaded solder is more viscou-s (sticky, less prone to flow)
than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Usable with ordinary solder
It is best to use only unleaded solder but unleaded solder may
also be added to ordinary solder.
Ver. 1.1
PART No.
– Rear Panel –
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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5
HCD-GPZ6/GPZ7
SECTION 2
GENERAL This section is extracted from
instruction manual.
Main unit
ANALOG IN jack wf
BASS +/−ed
CANCEL wa
Cassette compartment 5
CD DIGITAL OUT jack wd
CD SYNC qs
Disc slot ea
DISPLAY 3
Display window 4
DSGX ef
ENTER qk
FM MODE wh
FUNCTION wl
ALPHABETICAL ORDER
Jog dial qj
PHONES jack e;
PLAY MODE wk
Remote sensor q;
REPEAT wj
TREBLE +/−es
TUNER/BAND qd
TUNER MEMORY qf
TUNING MODE wg
TUNING +/−qg
VOLUME control 2
Hs
HS
A
jJ
+ / 1
slj JL
34 8
qs
qa
0
qg
qd
qf
qj
qk
qh
ql
w;
wa
e;
ea
es
ed
ef
1
2
wl
ws
wd
whwjwk wg wf
975 6
?/1 (power) 1
Z PUSH OPEN/CLOSE (tape
open/close) 6
TAPE N(play) 7
x (tape stop) 8
m/M (tape rewind/fast
forward) 9
z PAUSE/START (record) qa
+/−(select group) qh
lm/ML (rewind/fast
forward, go back/go forward)
ql
Z (CD open/close) w;
x (CD stop) wa
CD NX (play) ws
BUTTON DESCRIPTIONS
Use buttons on the remote for the operation.
1Press ?/1 to turn on the system.
2Press CLOCK/TIMER SET.
3Press .or >repeatedly to set the hour.
Setting the clock
4Press ENTER.
5Press .or >repeatedly to set the minute.
6Press ENTER.
The clock starts working.
To adjust the clock
1 Press CLOCK/TIMER SET.
2 Press . or > repeatedly to select ÒCLOCK SETÓ, then
press ENTER.
3 Do the sa e procedures as step 3 to 6 above.
Note
The clock is not displayed in Power Saving Mode.
Remote control
CD qh
CLEAR qd
CLOCK/TIMER SELECT 2
CLOCK/TIMER SET 3
DISPLAY ql
ENTER 9
EQ qs
ALPHABETICAL ORDER
FM MODE 4
FUNCTION 6
PLAY MODE qk
REPEAT 4
?/1 (power) 1
m/M (rewind/fast forward)
7
N(play) 8
X(pause) 8
x(stop) 8
+/−(select group) qa
./> (go back/go forward)
qf
+/−(tuning) qf
BUTTON DESCRIPTIONS
4
5
6
7
8
9
1
qs
qf
qd
w;
ql
qk
qj
qh
qg
qa
0
3
2
SLEEP w;
TAPE qg
TUNER BAND 5
TUNER MEMORY qj
TUNING MODE qk
VOLUME +/−q;
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-GPZ6/GPZ7
6
•This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
SET
3-2. PANEL (SIDE L)/(SIDE R)
(Page 7)
3-10. HOLDER
(BU215) ASSY
(Page 11)
3-15. LEVER
(BU LOCK)
(Page 14)
3-16. CLOSE
LEVER
(Page 14)
3-17. LEVER (DIR),
GEAR (IDL-B)
(Page 15)
3-9. CD MECHANISM DECK
(CDM80B-F1BD83)
(Page 10)
3-7. BASE UNIT
(BU-F1BD83)
(Page 9)
3-8. BD BOARD
(Page 10)
3-6. CD BLOCK ASSY
(Page 9)
3-11. CHASSIS (TOP)
(Page 11)
3-14. DRIVER
BOARD
(Page 13)
3-12. LEVER
(LOADING-L/R)
(Page 12)
3-13. LEVER (DISC
SENSOR)/
(DISC STOP )
(Page 13)
3-18. GEAR
(IDL-C)
(Page 15)
3-19. AU-TC BOARD
(Page 16) 3-20. MECHANICAL DECK (CMAL5Z232A)
(Page 16)
3-4. FRONT PANEL BLOCK
(Page 8)
3-5. MAIN BOARD
(Page 8)
3-3. TOP BLOCK SECTION
(Page 7)
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HCD-GPZ6/GPZ7
7
Note: Follow the disassembly procedure in the numerical order given.
3-2. PANEL (SIDE L)/(SIDE R)
3-3. TOP BLOCK SECTION
2 four screws
(BVTP3
× 8)
1 three screws
(BVTP3
× 8)
4 three screws
(BVTP3
× 8)
5 four screws
(BVTP3
× 8)
6 panel (side R)
3 panel (side L)
5 top block section
3
1 screw
(BVTP3 × 8)
2 claw
2 claw
4 flexible board
(CN307)
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HCD-GPZ6/GPZ7
8
3-4. FRONT PANEL BLOCK
3-5. MAIN BOARD
3 two screws
(BVTP3
× 8)
6 screw
(BVTP3
× 8)
4 screw
(BVTP3
× 8)
7 harness
2 three connectors
(CN302, 308, 310)
1 flexible board
(CN312)
5 two harnesses
8 two claws
9 front panel block
7 connector
(CN303)
5
8 MAIN board
3 screw
(BVTP3 × 8)
4 two screws
(BVTP3 × 8)
1 flexible board
(CN313)
6 two flexible boards
(CN304, 305)
2 three connectors
(CN306, 309, 314)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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HCD-GPZ6/GPZ7
9
3-6. CD BLOCK ASSY
3-7. BASE UNIT
(BU-F1BD83)
1 connector
(CN902)
2 three screws
(BVTP3
× 8)
3 screw
(BVTP3
× 8)
5 four screws
(BVTP3
× 8)
6 CD block assy
4 AMP board block
8 base unit (BU-F1BD83)
3 two coil springs
(insulator)
4 two insulators
2 two stoppers
(BU)
1 two screws
(BTTP M2.6)
5 two floating screws
(PTPWHM2.6)
6 two coil springs
(insulator)
7 two insulators
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-GPZ6/GPZ7
10
3-8. BD BOARD
3-9. CD MECHANISM DECK
(CDM80B-F1BD83)
1 Remove four solders.
4 BD board
2 wire (flat type) (16 core
)
(CN301)
3 screw (2.6 × 8)
4 four screws
(B3)
6 CD mechanism deck
(CDM80B-F1BD83)
2 three claws
2 claw
1 two screws
(B3)
3 holder (mecha upper)
5 holder (mecha lower)
2 two claws
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-GPZ6/GPZ7
11
3-10. HOLDER (BU215) ASSY
5 coil spring (holder down B)
1 screw
(BVTP 2.6
× 8)
2 lever (CL UP2)
6 holder (BU215) assy
3 floating screw
(PTPWHM2.6)
4 floating screw
(PTPWHM2.6)
3-11. CHASSIS (TOP)
1 screw
(BVTP 2.6 × 8)
3 two screws
(P 2 × 10)
5 chassis (top)
2 lever (CL UP2)
4 three screws
(BVTT 2.6)
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-GPZ6/GPZ7
12
lever (loading-R)
Align the horizontal position.
lever (loading-L)
Install the both levers so that they move symmetrically.
– Bottom view –
2 two hooks
4 two hooks
3 lever (loading-L)
5 lever (loading-R)
SPT-T (loading-R) SPR-T (loading-L)
1
1
PRECAUTION DURING LEVER (LOADING R / L) INSTALLATION
3-12. LEVER (LOADING-L/R)
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2
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4 2
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-GPZ6/GPZ7
13
3-13. LEVER (DISC SENSOR)/(DISC STOP)
chassis (top)
hole
Install the lever (disc stop) so that the both holes
are aligned.
hole
1 gear (cap)
3 two claws
5 two hooks
6 lever (disc stop) lever (disc stop)
4 lever (disc sensor)
PRECAUTION DURING DISC STOP LEVER INSTALLATION
2 gear (IDL-L)
3-14. DRIVER BOARD
3 Remove two solders.
2 two screws
(BVTT 2.6)
5 DRIVER boar
d
4 motor (pully) assy
(loading)
1 belt (MOT)
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2
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4 2
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-GPZ6/GPZ7
14
3-15. LEVER (BU LOCK)
4 three hooks
1 floating screw
(PTPWHM2.6)
5 lever (BU lock)
2 gear (cap)
3 gear (BU lock)
3-16. CLOSE LEVER
1 washer (3-1-0.4)
2 SPR-E lever close
4 shaft disc stop
5 close lever
3 claw
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-GPZ6/GPZ7
15
3-17. LEVER (DIR), GEAR (IDL-B)
4 pulley (gear)
3 nylon washer 1.7
2 claw
washer
0 lever (DIR)
6 gear (IDL-A)
qa gear (IDL-B)
1 tension coil spring
(DIR)
9 stopper
7 Loosen the screw.
8 Hold the release lever
and change the direction.
5 gear (cap)
6 claw
1 gear (IDL-F)
5 gear loading lever
2 two claws
4 three hooks
3 gear (IDL-D)
7 gear (IDL-C)
3-18. GEAR (IDL-C)
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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HCD-GPZ6/GPZ7
16
3-19. AU-TC BOARD
3-20. MECHANICAL DECK
(CMAL5Z232A)
1 connector
(CN301)
2 screw (B2.6)
3 AU-TC board
1 connector
2 two screws
(B2.6)
1 two screws
(B2.6)
4 screw (B2.6)
6 mechanical deck
(CMAL5Z232A)
5 bracket (CST)
3 screw (B2.6)
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

17
HCD-GPZ6/GPZ7
SECTION 4
TEST MODE
[COMMON TEST MODE]
•This mode is used to check operations of Amplifier.
Procedure:
1. Press the I/1key to turn the power ON.
2. Press three keys of [DSGX] and [DISPLAY] and [PLAY MODE]
simultaneously.
3. When the COMMON test mode is activated, “PLAY SLEEP”
blinks on the fluorescent indicator tube.
4. Turn the [BASS] knob counterclockwise, “TONE MIN” is
displayed on the fluorescent indicator tube. Turn the [BASS]
knob clockwise, “TONE MAX” is displayed on the fluorescent
indicator tube.
Turn the [TREBLE] knob clockwise or counterclockwise,
“TONEFLAT” is displayed on the fluorescent indicator tube.
Turn the [VOLUME] knob counterclockwise, “VOL MIN” is
displayed on the liquid crystal display. Turn the [VOLUME]
knob clockwise, “VOL MAX” is displayed on the fluorescent
indicator tube.
5. To release this mode, press the I/1key.
[PANEL TEST MODE]
•This mode is used to check the fluorescent indicator tube, LED,
model, destination, software version and key.
Procedure:
1. Press the I/1key to turn the power ON.
2. Press three keys of [DSGX], [DISPLAY] and [FUNCTION]
simultaneously.
3. Fluorescent indicator tube is all turned on and each LED
of CDu, [TUNER/BAND],TAPEB, [DSGX] and [STANDBY]
blinks every 0.5 seconds.
4. When you want to enter the model, destination and version display
mode, press the [PLAY MODE] key. The model and destination
are displayed alternately on the fluorescent indicator tube.
5. Each time [PLAY MODE] key is pressed, the display changes
starting from MC version, GC version, CD version, CDD
version, CDMA version, CDMB version, BDA version, BDB
version, ST version, TA version, TM version, and TC version
this order, and returns to the MC version display on the
fluorescent indicator tube.
6. Press the [CD SYNC] key, the key check mode is activated.
7. In the key check mode, the fluorescent indicator tube displays
“K 0 J0 V0”.
8. Each time a button is pressed, “K” value increases. However,
once a button is pressed, it is no longer taken into account.
All keys are pressed, display becomes “K26”.
9. “V” value increases 1, 2, 3 ... if turn the [VOLUME] knob
clockwise, or it decreases 0, 9, 8 ... if turn the knob
counterclockwise
“J” value increases like 1, 2, 3 ... if turn the [BASS] or [TREBLE]
or JOG knob clockwise, or it decreases like 0, 9, 8 ... if turn
the knob counterclockwise.
10. When [FUNCTION] key is pressed while the version numbers
are being displayed except model and destination, year, month
and day of the software creation display. When [FUNCTION]
key is pressed again, the display returns to the software version
display. In this state, each time [PLAY MODE] key is pressed,
the year, month and day of creation of the software versions
are displayed on the fluorescent indicator tube in the same
order of version display.
11. To release this mode, press three keys in the same manner as
step 2, or disconnect the power cord.
[COLD RESET]
•The cold reset clears all data including preset data stored in
the RAM to initial conditions. Execute this mode when
returning the set to the customer.
Procedure:
1. Press the I/1key to turn the power ON.
2. Press three keys of I/1, [DISPLAY] and x(CD)
simultaneously.
3. The fluorescent indicator tube becomes blank instantaneously,
and the set is reset.
[SHIP MODE (NO MEMORY CLEAR)]
•This mode moves the optical pick-up to the position durable
to vibration. Use this mode when returning the set to the
customer after repair.
Procedure:
1. Press the I/1key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DISPLAY],Zand MLsimultaneously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the fluorescent indicator tube, and the ship mode is set.
[SHIP MODE (MEMORY CLEAR)]
•This mode moves the optical pick-up to the position durable
to vibration. Use this mode when returning the set to the
customer after repair.
Procedure:
1. Press the I/1key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DSGX],x(CD) and [DISPLAY] simulta-
neously.
4. After the “STANDBY” display blinks, “LOCK” is displayed
on the fluorescent indicator tube, and the ship mode is set.
[CD SLOT LOCK MODE]
•This mode is used to unable to take sample disc out of disc
slot in the shop.
Procedure:
1. Press the I/1key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. While pressing the Zkey, press the x(CD) key for
5 seconds.
4. The message “LOCKED” is displayed on the fluorescent
indicator tube and the disc slot is locked. (Even if pressing
the Zkey, the message “LOCKED” is displayed on the
fluorescent indicator tube and the disc slot is locked)
5. To release from this mode, pressing the Zkey, press
the x(CD) key for 5 seconds.
6. The message “UNLOCKED” is displayed on the fluorescent
indicator tube and the disc slot is unlocked.
[CD SERVICE MODE]
•This mode can run the CD sled motor freely. Use this mode,
for instance, when cleaning the optical pick-up.
Procedure:
1. Press the I/1key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [ENTER],MLand [DISPLAY]
simultaneously.
4. Press the MLkey to move the optical pick-up to outside
track, or press the lmkey to inside track.
5. Press the x(CD) key, “LD OFF” is displayed and laser diode
is turned off. Each time x(CD) key is pressed, laser diode
ON/OFF switch is performed.
6. To release this mode, press the I/1key.
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2
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4 2
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

18
HCD-GPZ6/GPZ7
[CD ERROR CODE DISPLAY MODE]
This mode can be used for error code display of CD section.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DISPLAY], [DSGX] and ML
simultaneously.
4. When this mode is activated, mechanism deck error code is
displayed on the fluorescent indicator tube.
5. Press the + – keys to changed over between optical
pick-up error code display mode and mechanism deck error
code mode.
6. Turn the l mM Lkeys to change over display of error
history.
[CD SERVO TEST MODE]
•This mode used to check operation of optical pick-up.
Procedure:
1. Press the I/1key to turn the power ON.
2. Press the [FUNCTION] key to select “CD”.
3. Press three keys of [DISPLAY], [ENTER] and lm
simultaneously.
4. When the CD servo test mode is activated. In this state, each
time [PLAY MODE] key is pressed, tracking ON/OFF switch
is performed.
[CD POWER MANAGE]
This mode is for switch the CD power supply on/off. Even if this
state pulls out AC plug, it is held.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [FUNCTION] key to select “CD”.
3. Press the I/1button again to turn the power off (standby).
4. While pressing the x(CD) button, press the I/1button.
5. It turns power on and display “CD POWER”, then display
“ON” or “OFF”.
[CHANGE-OVER THE AM TUNING INTERVAL]
(EXCEPT AEP, UK, East European and Russian models)
The AM tuning interval can be changed over 9 kHz or 10 kHz.
Procedure:
1. Press the I/1button to turn the power on.
2. Press the [TUNER/BAND] button to select TUNER (AM)
function.
3. Press the I/1button again to turn the power off (standby).
4. While pressing the MLbutton, press the I/1button.
5. It turns power on and display “STEP 9kHz” or “STEP 10kHz”,
and thus the tuning interval is changed over.
Ver. 1.1
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
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HCD-GPZ6/GPZ7
1919
HCD-GPZ6/GPZ7
SECTION 6
ELECTRICAL ADJUSTMENTS
Screw
position
L-CH
peak
within
1dB
Output
level
L-CH
peak R-CH
peak
within
1dB
Screw
position
R-CH
peak
0 dB=0.775 VDECK SECTION
set
PANEL (2) board
PHONES jack
(J321)
+
–
level mete
r
test tape
P-4-A063
(6.3 kHz,
− 10 dB)
1. Demagnetize the record/playback head with a head
demagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.
•TestTape
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
Procedure:
1. Mode: Playback
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 1dB of peak.
3. Mode: Playback
4. After the adjustments, apply suitable locking compound to
the pats adjusted.
Tape Signal Used for
P-4-A063 6.3 kHz, -10 dB Azimuth Adjustment
set
test tape
P-4-A063
(6.3 kHz, − 10 dB) oscilloscope
VH
waveform of oscilloscope
in phase 45 ° 90 ° 135 ° 180 °
good wrong
PANEL (2) board
PHONES jack
(J321)
Checking Location:
+
–
BD board
TP (RFACI)
TP (VC)
oscilloscop
e
(DC range)
Procedure :
1. Connect oscilloscope to TP (RFACI) and TP (VC) on the BD
board.
2. Press the I/1button to turn the power ON, and press
the Z(CD) button to open the CD disc tray.
3. Set disc (YEDS-18) on the tray and press the CDubutton
to playback.
4. Confirm that oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
VOLT/DIV: 200 m
V
TIME/DIV: 500 ns
level:
0.9
± 0.4 Vp-p
TP
(VC)
TP
(RFACI)
IC201
– BD Board (Conductor Side) –
CD SECTION
Note:
1. CD Block is basically constructed to operate without adjustment.
2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.
3. Use an oscilloscope with more than 10 MW 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.
5. Check the focus bias check when optical pick-up block is replaced.
FOCUS BIAS CHECK
Adjustment Location: Record/Playback/Erase Head
SECTION 5
MECHANICAL ADJUSTMENTS
•Precaution
1. Clean the following parts with a denatured-alcohol-moistened
swab :
record/playback head pinch roller
erase head rubber belts
capstan idlers
2. Demagnetize the record/playback head with a head
demagnetizer. (Do not bring the head magnetizer close to the
erase head.)
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, appiy suitable locking compound to
the parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
•Torque Measurement
Mode Torque Meter Meter Reading
2.95 – 6.86 mN⋅m
FWD CQ-102C (30 – 70 g⋅cm)
(0.42 – 0.97 oz⋅inch)
FWD 0.15 – 5.39 mN⋅m
Back Tension CQ-102C (1.5 – 5.5 g⋅cm)
(0.021 – 0.076 oz⋅inch)
more than 5.89 mN⋅m
FF CQ-201B (more than 60 g⋅cm)
(more than 0.83 oz⋅inch)
more than 5.89 mN⋅m
REW CQ-201B (more than 60 g⋅cm)
(more than 0.83 oz⋅inch)
•TapeTension Measurement
Mode Tension Meter Meter Reading
FWD CQ-403A more than 100 g
(more than 3.53 oz)
reverse
forward
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Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
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http://www.xiaoyu163.com

HCD-GPZ6/GPZ7
2020
HCD-GPZ6/GPZ7
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – CD SERVO/TUNER Section –
(Page 21)
(Page 21)
OPTICAL
PICK-UP BLOCK
(KSM-215DCP)
CH2OUTF CH2FIN
FOCUS/TRACKING COIL DRIVER,
SLED/SPINDLE MOTOR DRIVER
IC402
12 6
CH2OUTR
11
CH1OUTR
13
CH1OUTF
14
CH3OUTF
17
CH3OUTR18
SL–
SL+
TRK–
TRK+
FCS–
FCS+
2-AXIS
DEVICE
PD
LD
B
A
D
C
F
E
M402
(SLED) M
CH4OUTF
16
CH4OUTR15
CH2RIN 7
CH1RIN 5
CH1FIN 4
CH3FIN 23
CH3RIN 22
OPIN+ 3
CH4IN 24
OPOUT 27
FFDR
45
PD
67
F
51
E
50
D
60
C
59
B
58
A
57
LD
66
FRDR
46
TRDR
44
TFDR
43
SFDR
41
SRDR42
MDP
38
SP–
SP+
M401
(SPINDLE) M
CD DSP
IC201
SYSTEM CONTROLLER
IC306 (1/3)
XTAI 109
XTAO 108
SSTP 39
X202
16.9344MHz
S201
(LIMIT)
D +3.3V
CD-L
DOUT
RFACO
101
AOUT1 112
AOUT2 117
70
RFACI
71
XRST
8
MUTE
20
XTACN 7
SSTB-MP3 85
ACK-MP3 15 MP3 ACK
24
B
TUNER-L
AUTOMATIC
POWER CONTROL
Q321
CD MUTING
CONTROL
Q317, 318
MP3 STB
28
XTCN
33
(OUT SW) CDM80 SW1
56
(CHECK SW) CDM80 SW2
57
CDM80 LOAD-OUT
53
CDM80 LOAD-IN
54
CD XRST
22
IREQ-MP3 10
REQ-MP3 14
XLAT-MP3 13
CLK2 90 MP3 CLK
7
MP3 XLAT
25
MP3 REQ
26
MP3 IREQ
27
DATA2 12
SCOR 26 CD SCOR
19
MP3 DATA OUT
5
MP3 DATA IN
6
SENS 20
XLAT 16
CLOK 11
DATA 89 CD DATA
35
CD CLK
37
CD XLT
23
CD SENS
36
ST TUNED
75
ST DATA OUT
77
DIN/STEREO
78
ST CLK
79
ST CE
76
RDS-CLK
18
RDS DATA
21
S701
(OUT)
S702
(CHUCK)
OPTICAL
TRANSCEIVER
J302
MD Link
CD DIGITAL
OUT
R-CH
R-CH
TUNER UNIT
L OUT
R OUT
ST CE
R-CH
TUNED
ST DIN
DO/STEREO
ST CLK
RDS DATA
RDS CLK
(GPZ6: UK/GPZ7: AEP, EE, RU)
AM
ANTENNA
FM ANT
AM ANT
ANT GND
ANT GND
FM 75Ω
A
38
CD AMUTE
MUTING
Q102
M
LOADING
MOTOR DRIVE
IC701
M701
(LOADING)
• SIGNAL PATH
: CD PLAY (ANALOG)
• R-ch is omitted due to same as L-ch.
: CD PLAY (DIGITAL)
: TUNER
Abbrivation
: East European modelEE
: Russian modelRU
Ver. 1.1
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TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com