HCD-CP11 is the Amplifier, CD
player, Tape Deck and Tuner section
in CMT-CP11/CP11K.
Dolby noise reduction manufactured under license
from Dolby Laboratories Licensing Corporation.
“DOLBY” and the double-D symbol a are trademarks of Dolby Laboratories Licensing Corporation.
– HEADPHONE/SPEAKER Section – ····························· 21
6-10.Printed Wiring Boards – CONTROL Section – ················· 22
6-11.Schematic Diagram – CONTROL Section –····················· 23
6-12.Printed Wiring Board – POWER Section – ······················· 24
6-13.Schematic Diagram – POWER Section –·························· 25
6-14.IC Block Diagrams ···························································· 26
6-15.IC Pin Function Description ·············································· 28
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.
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.
8. ELECTRICAL PARTS LIST····································· 34
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.
CAUTION :
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL :
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDGÅ UDSAETTELSE
FOR STRÅLING.
VORSICHT :
ABDECKUNG GEÖFFNET UND SICHERUEITSVERRIEGELUNG
ÜBERBRÜCKT. NICHT DEM STRAHL AUSSETZEN.
VARO!:
TIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
VARNING :
OCH SPÄRREN ÄR URKOPPLAD. BETRAKTA EJ STRÅLEN.
ADVERSEL :
SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.
VIGYAZAT!:
GÁRVESZÉLY
INVISIBLE LASER RADIATION WHEN OPEN AND
USYNLIG LASERSTRÅLING VED ÅBNING NÅR
UNSICHTBARE LASERSTRAHLUNG, WENN
AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET AL T-
OSYNLING LASERSTRÅLING NÄR DENNA DEL ÄR ÖPPNAD
USYNLIG LASERSTRÅLING NÅR DEKSEL ÅPNES OG
A BURKOLAT NYITÁSAKOR LÁTHATATLAN LÉZERSU-
!
KERÜLJE A BESUGÁRZÁST!
3
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.
MODEL IDENTIFICATION
– Back Panel –
Power Voltage
Indication
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.
SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, screws,
and all other exposed metal parts for AC leakag e. Check leakage as
described below.
LEAKAGE
The AC 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 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. Follo w the manufacturers’ instructions to use these
instruments.
2.A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
Model
US, CND, MX, KR models
AEP, UK, AED, CIS, models
E, EA, AR, HK, MY, SP,
TW , A US models
• Abbreviation
EA: Saudi Arabia model.
AUS : Australian model.
SP: Singapore model.
MY: Malaysia model.
TW: Taiwan model.
HK: Hong Kong model.
AR: Argentine model.
CND : Canadian model.
AED : North European model.
MX: Mexican model.
KR: Korean model.
VOLTAGE SELECTOR
Switch
Power Voltage
Incdication
AC: 120 V 60 Hz 55 W
AC: 230 V ⁄50 Hz 55 W
AC: 110 – 120/
220 – 240 V / 50/60 Hz 55 W
3.Measuring the voltage drop across a resistor by means of a
VOM or battery-operated A C voltmeter . The “limit” indication
is 0.75 V, so analog meters must have an accurate lo w-v oltage
scale. The Simpson 250 and Sanwa SH-63Trd are e xamples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V AC range are suitable. (See
Fig. A)
T o Exposed Metal
Parts on Set
AC
0.15
µ
F
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k
Ω
Earth Ground
Voltmeter
(0.75 V)
4
SECTION 2
GENERAL
LOCATION OF CONTROLS
• Front View
2
1
ql
w;
wa
ws
wd
wf
wg
wh
1 TAPE deck
2 Liquid crystal display
6543
7
8
9
0
qa
qs
qd
qf
qg
qh
qj
qk
wl
eseae;wkwj
3 TAPE P button
4 TAPE 0 button
5 TAPE œ button
6 TAPE 6 button
7 TAPE p button
8 TAPE ) button
9 TAPE REC r button
0 CD SYNC button and indicator
!¡ BAND button
!™ TUNING + button
!£ TUNING – button
!¢ TUNING MODE button
!∞ CD EJECT 6 button
!§ CD p button
!¶ CD + ) button
!• CD REPEAT button
!ª DSG button and indicator
@º STANDBY 1/u button and indicator
@¡ MD/VIDEO button and indicator
@™ TAPE button and indicator
@£ CD button and indicator
@¢ TUNER button and indicator
@∞ Remote sensor
@§ jack
@¶ PHONES jack
@• CD disc tray
@ª VOLUME knob
#º CD ^ button
#¡ CD =0 button
#™ CD PLAY MODE button
• Rear View
4
5
6
7
1
2
1 AM ANTENN A terminals
2 FM ANTENNA jack or terminals
3
3 SPEAKER terminals
4 LINE OUT jacks
5 MD IN jacks
6 VIDEO IN jacks
7 CD DIGITAL OUT OPTICAL connector
5
This section is extracted from
instruction manual.
6
SECTION 3
)
s
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
3-1. COVER (UPPER)
4
Cover (upper)
1
Two screws
(case3 TP2)
2
Four screws
(BTP3
3
×
8)
Two screws
(case3 TP2
3-2. TAPE MECHANISM DECK
5
T ape
mechanism deck
2
Connector
3
Two screws
(BTP3
×
8)
1
Flat wire (12 core)
4
Two screw
(BTP3 × 8)
7
3-3. FRONT PAENL SECTION
3
Connector
4
Screw
(TP3
×
6)
2
Flat wire
1
Connector
(CN303)
Two claws
5
Two screws
(BTP3
×
8)
7
(There is a claw.)
6
Screw
(KTP3
Front panel section
×
6)
8
3-4. CD MECHANISM DECK
r
w
3
Screw
(BTP3
×
8)
2
flat wire (19 core)
(CN805)
1
connecto
3-5. UPPER CHASSIS
2
Upper chassis
4
CD mechanism deck
1
Scre
9
3-6. TRA Y
5
Pull the tray
2
Belt
A
1
Rotate the control cam in
the direction of arrow
A
3-7. CAM
2
SW lever
1
Torsion spring
3
5
Two screws
Gear
3
Pulley
4
4
Gear
Motor board
6
Roller
7
Cam
10
SECTION 4
SERVICE MODE
[Liquid Crystal Display All Lit Check Mode]
Procedure:
1.Set to standby state.
2.Press three buttons of x (T APE), x (CD), and MD/VIDEO
simultaneously.
3.Liquid crystal display are all turned on.
4.To e xit from this mode, press the ?/1 button to turn the power
OFF .
[Tape Deck Aging Mode]
This mode can be used for operation check of tape deck section.
Procedure:
1.Set a tape in the tape deck.
2.Set to standby state.
3.Press three buttons of x (TAPE), x (CD), and TAPE
simultaneously.
4.The aging is executed in bellow sequence.
5.To e xit from the aging mode, press the ?/1 button to turn the
power OFF.
Aging mode sequence:
Start
[CD Aging Mode]
This mode can be used for operation check of CD section.
Procedure:
1.Load a CD disc.
2.Set to standby state.
3.Press three buttons of x (TAPE), x (CD), and TUNER
simultaneously.
4.The aging is executed in bellow sequence.
5.To e xit from the aging mode, press the ?/1 button to turn the
power OFF.
Aging mode sequence:
Start
Open the disc tray
Close the disc tray
Play the last track
FWD Play
1 minute
REC pause for 3 seconds
FWD REC
3 minutes
Fast forward
REV Play
1 minute
REC pause for 3 seconds
REV REC
3 minutes
Shut off
Shut off
Shut off
Shut off
Rewind
11
SECTION 5
r
ELECTRICAL CONFIRMATIONS AND ADJUSTMENTS
DECK SECTION
Note: Confirm each contents of this section first of all. If the results are
not satisfied, do the adjustment.
0 dB=0.775 V
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 adjust.
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.
• Test Tape
TapeSignalUsed for
P-4-A10010 kHz, –10 dBAzimuth Adjustment
WS-48B3 kHz, 0 dBTape Speed Adjustment
P-4-L300315 Hz, 0 dBLevel Adjustment
Record/Playback Head Azimuth Adjustment
Procedure:
1.Mode: Playback
test tape
P-4-A100
(10 kHz, –10 dB)
MAIN board
LINE OUT jack (PJ301)
L-CH, R-CH
level mete
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.
Output
level
within
1dB
L-CH
peak
R-CH
peak
within
1dB
Screw
position
L-CH
peak
Screw
position
R-CH
peak
3.Mode: Playback
MAIN board
test tape
P-4-A100
(10 kHz, –10 dB)
L-CH
MAIN
board
CN301
set
R-CH
in phase 45°90°135°180
LINE OUT jack (PJ301)
L-CH
R-CH
waveform of oscilloscope
good
oscilloscope
wrong
H
V
°
set
+
–
4.Repeat step 1 to 3 in playback (REV) mode.
5.After the adjustments, apply suitable locking compound to the
pats adjusted.
Adjustment Location:
reverse
forward
12
Playback level Confirmation and Adjustment
r
set
MAIN board
MD IN jack (PJ301)
L-CH, R-CH
315 Hz, 50 mV (–23.8 dB)
blank tape
CS-123
600
Ω
attenuator
AF OSC
+
–
set
recorded
portion
MAIN board
LINE OUT jack (PJ301)
L-CH, R-CH
level meter
PJ301
Playback Level
REC Bias
REC Level
RV252 (R)
IC352
LINE OUT (L/R)
MD IN (L/R)
VIDEO IN (L/R)
RV152 (L)
RV251 (R)
RV151 (L)
RV253 (R)
RV153 (L)
Procedure:
Mode: Playback
test tape
WS-48B
(3 kHz, 0 dB)
frequency counter
REC Level Confirmation and Adjustment
Procedure:
1.Mode: Record
set
MAIN board
LINE OUT jack (PJ301)
L-CH, R-CH
+
–
Confirm playback level is within specification values as follows.
If these levels are out of specification v alues, adjust the RV151 (LCH) and RV251 (R-CH) on the MAIN boar d so that the lev el meter
reading become within specification values.
Specification values:
PJ301 PB level: 301.5 to 338.3 mV (–8.2 to –7.2 dB) lev el difference
between the channels: within ±0.5 dB
Adjustment Location: MAIN board
REC Bias Confirmation and Adjustment
Procedure:
1.Mode: Record
MAIN board
MD IN jack (PJ301)
L-CH, R-CH
50 mV (–23.8 dB)
600
Ω
set
blank tape
CN-123
AF OSC
1) 315 Hz
2) 10 kHz
attenuator
2.Mode: Playback
3.Confirm playback the signal recorded in step 1 become
specification values as follows.
If these values are out of specification v alues, adjust the R V252
(R-CH) and RV152 (L-CH) on the MAIN boar d to repeat steps
1 and 2.
Specification values:
PJ301 PB level: 47.2 to 53.0 mV (– 24.3 to – 23.3 dB)
Adjustment Location: MAIN board
– MAIN BOARD (Conductor Side) –
2.Mode: Playback
3.Confirm playback the signal recorded in step 1 become
specification values as follows.
If these values are out of specification v alues, adjust the R V153
(L-CH) and R V253 (R-CH) on the MAIN board to repeat steps
1and 2.
Specification values: Playback output of 315 Hz to playback
Adjustment Location: MAIN board
recorded
portion
level mete
set
MAIN board
LINE OUT jack (PJ301)
L-CH, R-CH
+
–
output of 10 kHz: ± 0.5 dB
13
SECTION 6
d
DIAGRAMS
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGARAMS
Note on Printed Wiring Board:
• X : parts extracted from the component side.
• Y : parts extracted from the conductor side.
• b : Pattern from the side which enables seeing.
• Waveforms
– MAIN Board –
1
IC801 el
4.6Vp-p
5.0Vp-p
4.3Vp-p
2
3
238ns
IC801 os
30.5µs
IC804 qf
230ns
Note on Schematic Diagram:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ω and 1/
specified.
¢
•
• C : panel designation.
Note:
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part
number specified.
• U : B+ Line.
• V : B– Line.
• H : adjustment for repair.
• Voltages are taken with a VOM (Input impedance 10 M Ω).
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
• Abbreviation
: internal component.
Voltage var iations may be noted due to normal production tolerances.
Voltage var iations may be noted due to normal production tolerances.
F: TUNER
E: TAPE PLAY
a : TAPE RECORD
J: CD PLAY (ANALOG OUT)
c : CD PLAY (OPTICAL OUT)
EA: Saudi Arabia model.
AUS : Australian model.
SP: Singapore model.
MY: Malaysia model.
TW: Taiwan model.
HK: Hong Kong model.
AR: Argentine model.
CND : Canadian model.
AED : North European model.
MX: Mexican model.
KR: Korean model.
4
W or less unless otherwise
Note:
Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.