Sony HCD-H33D User manual
MICROFILM
AEP Model
UK Model
E Model
Australian Model
SERVICE MANUAL
MINI Hi-Fi COMPONENT SYSTEM
HCD-H33D
CD Model Name Using Similar Mechanism HCD-H801
Section CD Mechanism Type CDM28-5BD19
Base Unit Name BU-5BD19
Tape deck Model Name Using Similar Mechanism HCD-H881
Section Tape Transport Mechanism Type TCM-220WR2
SPECIFICATIONS
Photo: AEP Model
HCD-H33D is the tuner, deck, CD
and amplifier section in CHC-P33D.
CD player section
System Compact disc digital audio
system
Laser Semiconductor laser
(λ=780 nm)
Emission duration: continuous
Laser output Max 44.6 µW*
* Thisoutputisthevaluemeasured
ata distanceof 200mm fromthe
objective lens surface on the Op-
tical Pick-up Block with 7 mm
aperture.
Wavelength 780-790 nm
Frequency response 2 Hz-20 kHz
Signal-to-noise ratio More than 65 dB
Dynamic range More than 97 dB
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5-108.0 MHz (50 kHz step)
Aerial FM lead aerial
Aerial terminals 75 ohm unbalanced
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol aare trade-
marksofDolbyLaboratoriesLicensingCorporation.
Intermediate frequency10.7 MHz
AM tuner section
Tuning range AEP, UK, German model:
MW: 531-1,602 kHz
LW: 153-279 kHz
Italian model:
MW: 522-1,611 kHz
(9 kHz step)
LW:153-279 kHz
E3 (Tuner Sections
SW BAND exist),
SaudiArabia, Hong kong,
Malaysia, Singapore model:
MW: 531-1,602 kHz
(9 kHz step)
530-1,710 kHz
(10 kHz step)
SW: 5.95-17.90 MHz
E2 (Tuner Sections SW
BAND do not exist),
Mexican,Argentine
model:
AM: 531-1,710 kHz
(9 kHz step)
AM: 530-1,710 kHz
(10 kHz step)
Australian model:
AM: 531-1,602 kHz
(9 kHz step)
AM: 530-1,710 kHz
(10 kHz step)
Aerial AM loop aerial
External aerial terminals
Intermediate frequency450 kHz
Tape player section
Recording system 4-track 2-channel stereo
Frequency response (DOLBY NR OFF)
40-13,000 Hz (±3 dB),
using Sony TYPEI cassette
40-14,000 Hz (±3 dB),
usingSonyTYPEIIcassette
Wow and flutter 0.1% WRMS ±0.3% (DIN)
Amplifier section
Peak music power output
600 W
– Continued on next page –
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TEL 13942296513 QQ 376315150 892498299
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– 2 –
TABLE OF CONTENTS
1. SERVICING NOTES ................................................. 3
2. GENERAL
Index to Parts and Controls ............................................... 5
3. DISASSEMBLY............................................................ 7
4. MECHANICAL ADJUSTMENTS ......................... 11
5. ELECTRICAL ADJUSTMENTS
Deck Section...................................................................... 11
Tuner Section ..................................................................... 14
CD Section......................................................................... 15
6. DIAGRAMS
6-1. IC Pin Function Description .............................................. 17
6-2. Block Diagrams
CD Section......................................................................... 21
Main Section...................................................................... 23
6-3. Schematic Diagram – Main Section – ............................... 28
6-4. Printed Wiring Boards – Main Section –........................... 33
6-5. Schematic Diagram – Tuner Section –
(AEP, G, IT, UK model) .................................................... 38
6-6. Printed Wiring Board –Tuner Section –
(AEP, G, IT, UK model) .................................................... 40
6-7. Printed Wiring Board –Tuner Section –
(EXCEPT AEP, G, IT, UK model) .................................... 41
6-8. Schematic Diagram – Tuner Section –
(EXCEPT AEP, G, IT, UK model) .................................... 42
6-9. Schematic Diagram – CD Section – .................................. 44
6-10. Printed Wiring Board –CD Section – ................................ 47
6-11. Schematic Diagram – Deck Section – ............................... 51
6-12. Printed Wiring Boards –Deck Section –............................ 53
6-13. Printed Wiring Board – Power Section –........................... 56
6-14. Schematic Diagram – Power Section – ............................. 57
6-15. Schematic Diagram – Panel Section –............................... 61
6-16. Printed Wiring Boards – Panel Section – .......................... 63
7. EXPLODED VIEWS .................................................. 65
8. ELECTRICAL PARTS LIST.................................. 72
DIN power output:
Satellite 7 W+7 W (4 ohms at 1 kHz, DIN)
Superwoofer 30 W (6 ohms at 60 Hz, DIN)
Continuous RMS power output
Satellite 10 W+10 W (4 ohms at 1 kHz, 10% THD)
Superwoofer 35 W (6 ohms at 60 Hz, 10%THD)
Music power output
Satellite 15 W+15 W (4 ohms at 1 kHz, 10% THD)
Supperwoofer 45 W (6 ohms at 60 Hz, 10% THD)
Inputs
MD IN Sensitivity 450 mV, impedance 47 kilohms
Output
MD OUT Sensitivity 250 mV, 1 kilohms
PHONES (stereo phone jack)
accept headphones of 8 ohms or more.
General
•Abbreviation
G : German
IT : Italian
Destination Power requirements Power
consumption
Dimensions Approx. 225 ×210 ×235 mm
(w/h/d) incl. projecting
parts and controls
Mass Approx. 4.8 kg
Design and specifications are subject to change without notice.
AEP, UK, German, 220-230 V AC, 50/60 Hz
Italian model
E, Saudi Arabia,
Hong Kong, 110-120 V/220-240 V AC, 75 W
Singapore, Argentine,
50/60 Hz Adjustable with
Malaysia model the voltage selector
Mexican model 120 V AC, 60 Hz
Australian model 240 V AC, 50/60 Hz
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TEL 13942296513 QQ 376315150 892498299
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– 3 –
SECTION 1
SERVICING NOTES
MODEL IDENTIFICATION
(Specification Label)
MODEL NO.
HCD-H33D
COMPACT DISC RECEIVER
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.
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 soldering iron around 270 ˚C during re-
pairing.
•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 pro-
cedures other than those specified herein may result in
hazardous radiation exposure.
Laser component in this product is capable of emitting radia-
tion exceding the limit for Class 1.
This appliance is classified as a
CLASS 1 LASER product.
The CLASS 1 LASER PROD-
UCT MARKING is located on the
side exterior.
This caution label
is located inside
the unit.
AEP, AED 4-981-428
German, Italian 4-981-429
UK 4-981-430
Argentine, E2, E3, Hong Kong,
Malaysia, Singapore 4-981-431
EA3 4-981-432
Mexican 4-981-433
Australian 4-981-434
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TEL 13942296513 QQ 376315150 892498299
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– 4 –
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
breakdown because of the potential difference generated by the
charged electrostatic load, etc. on clothing and the human body.
During repair, pay attenation to electrostaic breakdown 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.
NOTE 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, ob-
serve more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH
OPERATION CHECK
1. Maker POWER switch on with no disc inserted and disc table
closed.
2. Confirm that the following operation is performed while ob-
serving the objective lens.
Notes for repairing CD MECHANISM section electric flow.
Two jigs (J-2501-091-A and J-2501-092-A) are necessary for the
CD MECHANISM section electric flow.
Connect SET and JIG as shown in the figure below and turn the
power switch on.
Disc table getting out procedure on the power supply is
OFF
1Confirm that laser beam is spread.
2Up and down motion of the objective lens. (3 times)
Jig
(J-2501-092-A)
CN101
(19 pin)
Jig
(J-2501-081-A)
CNU102
(19 pin)
Disc Table
2
1
CN291
(5pin)
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– 7 –
SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
CASE SECTION
•
TO ADJUST THE AZIMUTH
2
Front Panel
Window (DIS)
Window (DIS)
1
Open the cassette lid.
2
Pressonthewindow(DIS) clips(3locations)
with a tool such as a thin screwdriver and
remove the window (DIS).
1
four screws
(case 3 TP2)
2
top plate
3
connector
(CN803)
3
connector
(CN801)
4
screw
(case 3 TP 2)
6
ten screws
(BVTP3
×
10)
7
case section
5
two screws
(BVTP 3
×
10)
4
screw
(case 3 TP2)
3
connector
(CN805)
1
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TEL 13942296513 QQ 376315150 892498299
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– 8 –
4
connector
(CN105)
1
wire (flat type)
(CN101)
CD MECHANISM SECTION
5
MAIN board
1
tow wires (flat type)
(CN104, 401)
2
connector
(CN291)
3
two screws
(BVTP 3
×
8)
1
wire (flat type) (CN402)
MAIN BOARD
1
two screws
(BVTP 2.6
×
8)
2
CD mechanism section
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TEL 13942296513 QQ 376315150 892498299
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– 9 –
TAPE MECHANISM SECTION
1
three screws
(BVTP 2.6
×
8)
1
two screws
(BVTP 2.6
×
8)
3
tape mechanism
section
2
Open the cassette
lid ass’y.
CASSETTE LID ASS’Y 1
two springs
2
two screws
(BVTP2.6
×
8)
4
bracket (FR)
5
cassette lid ass’y
3
bracket (FL)
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TEL 13942296513 QQ 376315150 892498299
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– 11 –
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
damagnetizer.
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 sup-
ply voltage unless otherwise noted.
•Torque Measurement
SECTION 4
MECHANICAL ADJUSTMENTS SECTION 5
ELECTRICAL ADJUSTMENTS
DECK SECTION
1. The adjustment should be performed in the publication.
(Be sure to make playback adjustment at first.)
2. The adjustment and measurement should be performed for both
L-CH and R-CH.
•Switch position
DOLBY NR switch : OFF
TIMER switch : OFF
DIRECTION MODE switch : A
3. Deck section electrical adjustment are made in test mode by
pressing TUNER/BAND, DISPLAY, and FUNCTION at the
same time.
– Record Mode –
set
MD IN
600
Ω
attenuator
AF OSC
+
–
level meter
MD OUT
Tape Contents Use
P-4-A100 10 kHz, –10 dB
Head Azimuth Adjustment
P-4-L300 315 Hz, 0 dB LevelAdjustment
WS-48B 3 kHz, 0 dB Tape Speed Adjustment
0dB = 0.775V
Record/Playback Head Azimuth Adjustment
DECK A DECK B
•Setup for adjustment
When adjusting the azimuth, remove the Window (DIS) in the
center of the front panel. (Refer to page 7.)
Procedure :
1. Mode : Forward Playback
•TestTape
Mode Torqu Meter Meter Reading
Foward CQ-102C 36 to 61 g•cm
(0.50 – 0.84 oz•inch)
Forward CQ-102C 2 to 6 g•cm
Back Tension (0.026 – 0.082 oz•inch)
Reverse CQ-102RC 36 to 61 g•cm
(0.50 – 0.84 oz•inch)
Reverse CQ-102RC 2 to 6 g•cm
Back Tension (0.026 – 0.082 oz•inch)
FF, REW CQ-201B 61 to 143 g•cm
(0.85 – 1.98 oz)
Mode Torque Meter Meter Reading
Forward CQ-403A more than 100 g (3.53 oz)
Reverse CQ-403R more than 100 g (3.53 oz)
•TapeTension Measurement
set +
–
test tape
P-4-A100
(10 kHz, –10 dB)
MD OUT
level meter
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– 12 –
2. Turn the adjustment screw for the maximum output levels. If
these levels do not match, turn the adjustment screw until both
of output levels match together within 1dB.
Screw
position
L-CH
peak
within
1dB
output
level
L-CH
peak R-CH
peak
within
1dB
Screw
angle
R-CH
peak
3. Mode : Forward Playback
4. Change the reverse playback mode and repeat the steps 1 to 3.
5. After the adjustment, lock the adjustment screw with suitable
locking compound.
Adjustment Location : –record/playback head (Deck A and B)
Deck A Deck B
forward reverse
Adjustment Screw
Tape Speed Adjustment
Procedure :
•Perform high speed adjustment before normal speed adjustment.
Mode : Playback
DECK A DECK B
Speed Deck Adjustment Frequency counter
*High A RV652 5,940 to 6,060 Hz
B RV652
Normal A RV651 2,990 to 3,030 Hz
B RV651
* Continuous to press HIGH SPEED DUBBING switch (S507) in
playback mode : High speed playback.
Frequency difference between the beginning and the end of the tape
should be within ± 3%.
Frequency difference between deck A and deck B the beginning of
the tape should be within 1.5%.
Adjustment Location : AUDIO board (see page 13)
Playback Level Adjustment
Procedure :
Mode : Playback
DECK A DECK B
DeckA is RV311 (L-CH) and RV411 (R-CH), deck B is RV301 (L-
CH) and RV401 (R-CH) so that adjustment within adjustment level
as follows.
Adjustment Level :
OUTPUT level : –3.5 ± 0.5 dB (0.489 to 0.546 V)
Level Difference between Channels : within 0.5 dB
Confirm the OUTPUT level dose not change in playback mode while
changing the mode from playback to stop several times.
Adjustment Location : AUDIO board (see page 13)
set +
–
test tape
P-4-A100
(10kHz, -10dB)
MD OUT
Oscilloscope
L-CH
R-CH
VH
+
–
screen pattern
in phase 45
°
90
°
135
°
180
°
good wrong
set
test tape
WS-48B
(3 kHz, 0 dB)
MD OUT
+
–
frequency counte
r
set +
–
test tape
P-4-L300
(315 Hz, 0 dB)
MD OUT
level mete
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TEL 13942296513 QQ 376315150 892498299
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– 13 –
Record Bias Adjustment
Procedure :
1. Mode : Record
DECK B
set
MD IN
1) 315 Hz
2
)
10 kHz
blank tape
CS-123
600
Ω
attenuator
AF OSC
38.8 mV (–26 dB)
2. Mode : Playback
3. Confirm playback the signal recorded in step 1 become adjust-
ment level as follows.
4. If these levels do not adjustment level, adjustment the RV341
(L-CH) and RV441 (R-CH) to repeat step 1 and 4.
Adjustment level :
Playback output of 315 Hz to playback output of 10 kHz : –0.5 dB
to 0.5 dB. (–1.3 to 1.3 mV)
Adjustment Location : AUDIO board
Record Level Adjustment
Procedure :
1. Mode : Record
DECK B
2. Mode : Playback
3. Confirm playback the signal recorded in step become adjust-
ment level as follows.
4. If these levels do not adjustment level, adjust the RV401 (L-
CH) and RV451 (R-CH) to repeat step 1 and 4.
Adjustment Level :
OUTPUT level : –26 dB ± 0.5 dB (36.7 to 41.1 mV)
Adjustment Location : MAIN board
Adjustment Location :
[AUDIO BOARD] – Conductor side –
set +
–
recorded
portion
MD OUT
level mete
r
set
MD IN
315 Hz, 38.8 mV
(
–26 dB
)
blank tape
CS-123
600
Ω
attenuator
AF OSC
set +
–
recorded
portion
MD OUT
level mete
r
RV301: Playback Level (Deck B L-CH)
RV401: Playback Level
(Deck B R-CH)
RV651:Tape Speed
(Normal)
RV652: Tape speed
(HIGH)
RV311: Playback Level
(Deck A L-CH)
RV411: Playback Level
(Deck A R-CH)
RV341: Record Bias (L-CH)
RV441: Record Bias (R-CH)
[MAIN BOARD] – Component side –
RV401:
Record Level (L-CH)
RV451:
Record Level (R-CH)
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TEL 13942296513 QQ 376315150 892498299
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– 14 –
Procedure :
1. Tune the set to 98 MHz
2. Adjust RV42 so that the TUNED indicatior goes on.
Adjustment Location : TCB board (see page 15)
SW OSC Voltage Adjustment (E3, EA, MY, SP, HK model)
Setting :
Band : SW
Procedure :
1. Connect digital Voltmeter to diode D1 center lead and ground.
2. Adjust for a following value reading on digital Voltmeter.
Set frequency Adjustment Reading on
part digital voltmeter
SW 5.95 MHz T2 1.2 Vdc
17.9 MHz CV2 8.5 Vdc
Adjustment Location : TCB board (see page 15)
SWTracking Adjustment (E3, EA, MY, SP, HK model)
Setting :
Band : SW
Procedure :
Adjust for maximum reading on level meter.
Set frequency Adjustment
part
SW 7 MHz T1
17 MHz CV1
•Repeat the procedures is each adjustment several times, and the
frequency coverage and tracking adjustment should be finally done
by the trimmer capacitors.
Adjustment Location : TCB board (see page 15)
set
AM RF signal
generator
Modulation: 400 Hz
30% modulation
+
–
level meter
SPEAKER terminal
AM ANTENNA terminal
TUNER SECTION
Precautions in Repairing
Note. 1 : The adjustment should be performed in the publication.
(MW →FM →SW)
Note. 2 : As a front-end (FE1) is difficult to repair if faulty, re-
place it with new one.
•Abbreviation
E2 : Tuner sections SW BAND do not exist.
E3 : Turner sections SW BAND exist.
EA : Saudi Arabia
MY :Malaysia
SP :Singapore
HK : Hong Kong
AMTuned Level Adjustment
Setting :
Band : MW
Procedure :
1. Set loop antenna A so that the loop antenna B input level be-
comes 55 dBµ/m (0.56 mV/m)
2. Tune the set to 999 kHz (at 9 kHz step) or 1,050 kHz (at 10 kHz
step).
3. Adjust RV41 so that the TUNED indicatior goes on.
Adjustment Location : TCB board (see page 15)
FMTuned Level Adjustment
Note : Always make the tuning level adjustment first.
(Since it affects the FM tuning level).
Setting :
Band : FM
AM RF signal
generator
loop antenna A
set
loop antenna B
Carrier frequency
Modulation
: 999 kHz (at 9 kHz step) or
1,050 kHz (at 10 kHz step)
: 400 Hz 30 % modulation
set
FM ANTENNA terminal (TM1
)
FM RF stereo signal
generator
Carrier frequency : 98 MHz
Modulation : 1 kHz, 75 kHz (100%)
Output level : 0.018 mV (25 dB
µ
)
75
Ω
coaxial
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– 15 –
Adjustment Location
[TCB BOARD] – Component side –
CD SECTION
Note :
1. CD Block basically constructed 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 the oscilloscope with more than 10MΩimpedance.
4. Clean an object lens by an applicatior with neutral detergent
when the signal level is low than specified value with the fol-
lowing checks.
Focus Bias Adjustment
This adjustment is to be done when the optical block is replaced.
Adjustment procedure :
1. Connect oscilloscope to test point TP (VC) and TP (RF) on BD
board.
2. Ground main board IC101 (pin (£) with the lead wire.
3. Turned power switch ON. (Stop mode)
4. Put disc (YEDS-18) in and press the (button.
5. Press the Pbutton. (Tracking servo ON)
6. Adjust RV101 so that the 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.
7. After adjustment, remove the lead wire connecd in step 2.
•RF signal reference waveform (eye pattern)
When observing the eye pattern, set the oscilloscope for AC
range and raise vertical sensitivity.
Adjustment Location : BD board (see page 16)
S-Curve Check
Procedure :
1. Connect oscilloscope to test point TP (FEO) on BD board.
2. Connect between test point TP (FOK) and TP (GND) by lead
wire.
3. Turned Power switch on.
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
1.3
±
0.3 Vp-p
+
–
BD board
TP (FEO)
TP (VC)
oscilloscope
+
–
BD board
TP (RF)
TP (VC)
oscilloscope
(DC range)
FE1
D1
CV1: SW Tracking Adjustmnet
T1: SW Tracking Adjustmen
t
RV41:
AM Tuned Level
Adjustment
CV2:
SW OSC voltage
Adjustment
T2:
SW OSC voltage
Adjustment
RV42:
FM Tuned Level
Adjustment
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– 16 –
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.
Adjustment Location : BD board (see page 16)
RF Level Check
+
–
BD board
TP (RF)
TP (VC)
oscilloscope
Procedure :
1. Connect oscilloscope to test point TP (RF) on BD board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in and press the (button.
4. Confirm that oscilloscope waveform is clear and check RF sig-
nal level is correct or not.
Note :
Clear RF signal waveform means that the shape “≈” can be
clearly distinguished at the center of the waveform.
•RF signal waveform
Adjustment Location : BD board (see page 16)
E-F Balance Check
+
–
BD board
TP (TEO)
TP (VC)
oscilloscope
Procedure :
1. Ground MAIN board IC101 (pin (£) with the lead wire.
2. Connect oscilloscope to test point TP (TEO) on BD board.
3. Turned Power switch on.
4. Put disc (YEDS-18) in and press the (button.
5. Confirm that the oscilloscope waveform is symmetrical on the
top and bottom in relation to 0 Vdc, and check this level.
specified level : •—————— ×100 = less than ± 7%
•A+B= 300 ± 100 mVp-p
6. Remove the lead wire connected in step 1.
Focus/Tracking Gain Adjustment (RV102, RV103)
This gain has a margin, so even if it is slightly off. There is no prob-
lem.
Therefore, do not perform, this adjustment.
Please note that it should be fixed to mechanical center position
when you moved and do not know original position.
Adjustment Location :
[BD BOARD] – Side B –
A-B
2 (A + B)
RF FOK
RV101
IC101 IC102
TE1
FE1
FEO
RV103
TEO
VC RV102
PCK
GND
IC104
symmetry
within 2.4 ± 0.7 Vp-p
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. Check the oscilloscope waveform (S-curve) is symmetrical be-
tweenA and B.And confirm peak to peak level within 2.4 ± 0.7
Vp-p.
•S-curve waveform
B
A
VOLT/DIV: 200 mV
TIME/DIV: 500 ns
level:
1.3
±
0.3Vp-p
level: 300 ± 100 mVp-p
0 V A
B
•Traverse waveform
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– 17 –
6-1. IC PIN FUNCTION DESCRIPTION
MAIN BOARD IC101 TMP87CP64YF-6396 (MASTER CONTROL)
SECTION 6
DIAGRAMS
Pin No. Pin Name I/O Function
1 Vss — Ground
2 X OUT O Main system clock (10 MHz)
3XINI
4 RESET I Reset signal input terminal
5 X OUT O Sub system clock (32 kHz)
6XINI
7 GND <TEST> — Ground
8 BACK UP I BACK-UP mode input terminal
9 COUNT. SW — Not used (Connected to Ground)
10 INIT. SW — Not used (Connected to Ground)
11 DISC SENS — Not used (Connected to Ground)
12 MID SENS — Not used (Connected to Ground)
13 CD-XRST O CD Reset output “L”: RESET
14 POWER O Power on output “L”: ON
15 MUTE O Mute output “L”: MUTE
16 MPX — Not used (Open)
17 KEYCON. LATCH O HIGH LED drive signal output
18 VOL. LATCH O Latch output to volume control (TC9210)
19 ST MUTE O Mute signal output for tuner
20 ST FM — Not used (Open)
21 FUNC. A O
22 FUNC. B O Function Select
23 FUNC. C O
24 GEQ. LATCH O Latch output to gray control (M6243)
25 RDS-INT I Not used (Pull up)
26 SCOR <DSP> I Sub code sync SO+SI detection input from DSP (CXD2507AQ)
27 CIN/SENS I SENS input from DSP (CXD2507AQ)
28 CD. POWER O CD Power on output “H”: ON
29 CDG_LATCH — Not used (Open)
30 DBFB 1-2 O MID LED drive signal output
31 MUTE O LOW LED drive signal output
32 CE O Chip enable output to tuner PLL IC (LC72130)
33 STEREO I FM/AM Stereo identification “L”: STEREO
34 TUNED I FM/AM Tuning identification “L”: TUNING
35 SQ-RDS-CLK O Sub-code Q data scanning clock output to DSP (CXD2507AQ)
36 SQ-RDS. D1 I Sub-code Q data input from DSP (CXD2507AQ)
37 RDS-RESET — Not used (OPEN)
38 CLK O System clock output
39 D. IN I Serial data input from tuner
40 D. OUT O Serial data (COMN) output
FUNCTION FUNC A FUNC B FUNC C
ST L L H
CD L H H
TC H L H
MD H H L
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– 18 –
41 TABLE SENS I WOOFER LEVEL switch signal input
42 REQ. GM I Data transmission request input from system control
43 REQ. MG O Not used (Pull up)
44 CLK. MG O Clock output for communications with system control
45 D. GM I Serial data input from system control
46 D. MG O Serial data output to system control
47 RDY I/O System control Ready signal input/output “L”: READY
48 VAREF I Analog reference voltage input (+5 V)
49 VASS — Analog Ground
50 Vss — Ground
51 VDD — Power supply (+5 V)
52 URGENT. SIG I Not used (Pull up)
53 URGENT. STBY I Not used (Open)
54 BUGY/N — Not used (Pull up)
55 ADJUSTOR — Not used (Pull up)
56 ADJUST 2 — Not used (Pull up)
57 MAGIC SPEED — Not used (Pull up)
58 SPEC I Not used (Pull up)
59 DIST I Model Selection input (A/D converter)
60 SPEED — Not used (Pull up)
61 BREAK — Not used (Pull up)
62 B-PLAY I Deck-B PLAY switch input “H”: PLAY
63 B-SHUT I Deck-B Reel table signal input
64 B-HALF I Deck-B Record prevention clawA, B detection input
65 A-SHUT I Deck-A Reel table signal input
66 A-PLAY I Deck-A PLAY Switch input “H”: PLAY
67 A-HALF I Deck-A HALF Switch input
68 CAPM H/L O Capstan motor speed selector “H”: Normal speed “L”: High speed
69 CAPM ON/OFF O Capstan motor ON/OFF “L”: ON
70 TRIG H/L O
71 B TRG O Trigger motor control output
72 A TRG O
73 RELAY O Control output to REC/PB select switch (IC602) “H”: REC
74 A/B O Dolby IC PB input Deck A/B select output “L”: A, “H”: B
75 NORM/HIGH O EQ Select switch output for normal/high speed “H”: High speed
76 BIAS ON/OFF O BIAS Oscillation ON/OFF control “H”: High speed
77 RM ON/OFF O REC Mute output “L”: MUTE
78 REC/PB O Dolby IC REC/PLAY Select output “H”: REC
79 NR O Dolby ON/OFF Control output “H”: ON
80 LM O Line Mute output “L”: MUTE
81 PASS O PASS Amplifier switch output to Dolby IC (IC401)
82 CDG_MUTE O Woofer level control signal output
83 UP MOTOR O
84 DOWN MOTOR O Not used
85 TABLE R — Not used (Open)
Pin No. Pin Name I/O Function
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– 19 –
86 TABLE L — Not used (Open)
87 LOAD OUT O Loading motor (M903) Load out output
88 LOAD IN O Loading motor (M903) Load in output
89 DF-LATCH O Latch output to digital filter (PCM1710U)
90 XLT O Serial data latch output to DSP (CDX2507AQ)
91 FOCUS. SW O High-region gain down output to focus servo (CXA1782BQ)
92 HIGH DUBB — Not used (Pull up)
93 TEST 1 I Test land (Pull up)
94 OUT. SW I CD Tray output detection input “L”: OUT
95 IN. SW I CD Tray input detection input
96 UP. SW — Not used (connected to ground)
97 PANEL. SW — Not used (connected to ground)
98 CLOSE. SW — Not used (connected to ground)
99 OPEN. SW — Not used (connected to ground)
100 VDD — Power supply (+5 V)
Pin No. Pin Name I/O Function
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– 20 –
Pin No. Pin Name I/O Function
1 ENC I Volume encoder input terminal
2 SIRCS I Remote commander signal input
3 REQ. MG I Data transmission request input from master control Not used (Pull up)
4 REQ. GM O Data transmission request output to master control
5-9 LED O LED drive signal Not used (Open)
10 RDY I/O Master control Ready signal input/output “L”: Ready
11 SCK. IN I Clock output for communications with master control
12 SD. IN I Serial data input from master control
13 SD. OUT O Serial data output to master control
14 LED_PAUSE O PAUSE LED Output
15 LED_CD O CD LED Output
16 LED_TUNER/BAND O TUNER/BAND LED output
17 LED_TAPE O TAPE LED Output
18
LED_FWD. STOP. FF & REW
O(, p, 0, )LED drive signal output
19
LED_DECK_A/B & REV
O9, DECK SELECT LED
20 LED_A O A LED Output
21 LED_B O B LED Output
22 KEY1 I Not used (Pull up)
23 KEY2 I
24 KEY3 I Key matrix input (A/D converter)
25 KEY4 I
26-29 BPF1-4 I Not used (Connected to Ground)
30 RST I Reset signal input
31 EXTAL I System clock (4 MHz)
32 XTAL O
33 Vss — Ground
34-62 P29-P1 O FL Drive
63-69 7G-1G O FL grid signal output
70 NC — Not used (Open)
71 VFDP — LED Driver –25 V power supply
72 VDD — Power supply (+5 V)
73, 74 KEY — Not used (Pull up)
75 VDD (TEST) — Power supply (+5 V)
76
LED_TUNER_COMMON
O TUNING MODE, STEREO/MONO, TUNER MEMORY LED drive signal output
77 LED_ENTER/NEXT O ENTER/NEXT LED drive signal output
78 ENC B I AMS encoder signal input
79 ENC A I
80 ENC — Not used (Pull up)
PANEL BOARD IC501 CXP82612-016Q (DISPLAY CONTROL)
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TEL 13942296513 QQ 376315150 892498299
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