Sony HTC-WX5 User manual

HTC-WX5
E Model
Australian Model
Tourist Model
SERVICE MANUAL
COMPACT DISC DECK
MICROFILM
SPECIFICATIONS
HTC-WX5 is the deck and CD
section in MHC-WX5/WX7.
CD
SECTION
TAPE DECK
SECTION
Model Name Using Similar Mechanism HTC-W555
CD Mechanism Type CDM38-5BD29A
Base Unit Type BU-5BD29AL
Optical Pick-up Type KSS-213B/S-N
Model Name Using Similar Mechanism HCD-VR90AV
Tape Transport Mechanism Type TCM-230AWR2
CD player section
System Compact disc and digital audio system
Laser Semiconductor laser ( =780nm)
Emission duration : continuous
Laser output Max. 44.6 µW*
*This output is the value measured at a
distance of 200mm from the objective
lens surface on the Optical Pick-up Block
with 7mm aperture.
Frequency response 20Hz – 20kHz (±1dB)
Wavelength 780 – 790 nm
Signal-to-noise ratio More than 90dB
Dynamic range More than 90dB
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength 600nm
Output Level -18dBm
Tape player section
Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000Hz (±3dB), using Sony TYPE I
(DOLBY NR OFF) cassette 40 – 14,000Hz (±3dB), using Sony
TYPE II cassette
General
Dimensions (w/h/d) Approx. 288 ×205 ×360mm
Mass Approx. 4.4kg
Design and specifications are subject to change without notice.

2
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
radiation exposure.
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 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.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
The CLASS 1 LASER
PRODUCT MARKING is
located on the rear exterior.
NOTES ON HANDLINGTHE 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 pick-
up 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 waveform is output three times.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINEWITH
MARK !ON THE SCHEMATIC DIAGRAMS AND INTHE 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.

3
TABLE OF CONTENTS
1. SERVICING NOTE .......................................................... 4
2. GENERAL .......................................................................... 7
3. DISASSEMBLY
3-1. Loading Panel ................................................................. 8
3-2. Back Panel and CD Mechanism Deck ............................ 8
3-3. Front Panel ...................................................................... 9
3-4. TC Mechanism Deck and Cassette Holder ..................... 9
3-5. Disc Tray ....................................................................... 10
4. MECHANICAL ADJUSTMENTS ..........................11
5. ELECTRICAL ADJUSTMENTS ............................... 11
6. DIAGRAMS
6-1. Circuit Boards Location ................................................ 14
6-2. Block Diagrams
• CD Section ....................................................................... 15
• Deck Section .................................................................... 16
• Main Section .................................................................... 14
6-3. Printed Wiring Board CD Section .............................. 18
6-4. Schematic Diagram CD Section ................................ 19
6-5. Schematic Diagram Deck Section .............................. 20
6-6. Printed Wiring Board Deck Section............................ 21
6-7. Printed Wiring Board Main Section............................ 22
6-8. Schematic Diagram Main (1/2) Section...................... 23
6-9. Schematic Diagram Main (2/2) Section...................... 24
6-10. Printed Wiring Board Leaf SW Section.................... 25
6-11. Schematic Diagram Leaf SW Section ...................... 25
6-12. Printed Wiring Board Panel Section ......................... 26
6-13. Schematic Diagram Panel Section ............................ 27
6-14. Schematic Diagram CD Motor Section .................... 28
6-15. Printed Wiring Board CD Motor Section ................. 29
6-16. IC Block Diagrams ..................................................... 30
6-17. IC Pin Functions ......................................................... 32
7. EXPLODEDVIEWS
7-1. Case and Back Panel Section........................................ 39
7-2. Front Panel Section ....................................................... 40
7-3. CD Mechanism Section 1 (CDM38-5BD29A)............. 41
7-4. CD Mechanism Section 2 (CDM38-5BD29A)............. 42
7-5. Base Unit Section (BU-5BD29A)................................. 43
7-6. TC Mechanism Section 1 (TCM230AWR2) ................ 44
7-8. TC Mechanism Section 2 (TCM230AWR2) ...............45
8. ELECTRICAL PARTS LIST ........................................ 46

4
SECTION 1
SERVICING NOTE
HOW TO OPENTHE DISC TRAY WHEN POWER SWITCH
TURNS OFF
1 Remove the Case.
Note for Installation (ROTARY ENCODER)
3 Pull-out the disc tray.
2 Turn the cam to the
direction of arrow.
BU cam
Groove Section A
Note:When attaching the Base unit, Insert the
section A into the groove of BU cam.
Note:When attaching the BU cam,
engage the Rotary encoder
switch as shown in the figure.

5
CD >(AMS) s(TAPE B) button + DISC3 button
.(AMS) s(TAPE B) button + DISC1 button
Ms(TAPE A) button + DISC3 button
ms(TAPE A) button + DISC1 button
TAPE A >(AMS) DISC SKIP button + H(TAPE B)
TAPE B .(AMS) DISC SKIP button + h(TAPE B)
MDISC SKIP button + H(TAPE A)
mDISC SKIP button + h(TAPE A)
Connection and Operations of the Unit by Itself
This unit cannot be operated by itself as it does not come with a power supply.
Connect STR-WX5/WX7 as shown in “Connection 1” before beginning servicing.
Connection 1: If there is STR-WX5/WX7.
STR-WX5/WX7
SYSTEM CABLE 17P
SET
AC IN
Use a power supply jig (PFJ-1) if the STR-WX5/WX7 is not available.
Connect the conversion jig for connection (J-2501-138-A) as shown in “Connection 2” before beginning servicing.
Connection 2: If there is not STR-WX5/WX7.
Set
Conversion
Jig
(J-2501-138-A)
Power SW
Service Box (PFJ-1) Connector
cable 17P
(Supplied with PFJ-1)
Connector
cable 17P
(Supplied with
Conversion Jig or Set)
FH-E939,838,737
MHC-6600,5600,3600,2600
CDP/TC SYSTEM CONTROL
To operate the unit by itself, turn on the power of the conduction jig (PFJ-1), and press the s(TAPE A) , s(TAPE B) , and H(TAPE
B) buttons together in this order.
As this unit is not equipped with fast forward and rewind buttons, buttons need to be combined and pressed together for different functions
when operating the unit by itself. (See Table-2.)
However, it will not operate properly if operations are performed without switching the functions.
Perform the following procedure to switch the functions before operating the unit.
The function selected is indicated by the DISC NUMBER indicator.
Table 1 Switching the Functions Table 2 Pressing Combination of Buttons When Operated by Itself
Function
CD x(CD) button 1< 2< 3
+ HI-SPEED DUBBING button
TAPE A x(CD) button 1< 2 3
+ zREC button
TAPE B x(CD) button 12<3
+ h(TAPE A) button
Operation
The function can be differentiated by the lighting of this part of the indicator.
↓↓
1< 2< 3
Indicator Deck Function Operation

6
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the s(TAPE A) button, s(TAPE B) button, and H(TAPE B)
button together in this order.
2. Press the s(TAPE B) button while pressing the x(CD) button to set the aging mode and start aging.
3. To end aging, press the three buttons in step 1.
Cold Reset
NOTE: This is the mode for operating the unit by itself. Take note that the operating method differs when connected to the STR-WX5/
WX7. This method is described in the manuals of the STR-WX5 and STR-WX7. Refer to these manuals for details.
This mode is used for initializing the RAM contents. Perform this mode when returning the repaired product to the customer.
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the s(TAPE A) button, s(TAPE B) button, and H(TAPE B)
button together in this order.
2. Press the X(TAPE) button while pressing the x(CD) button.
CD Delivery Mode
NOTE: This is the mode for operating the unit by itself. Take note that the operating method differs when connected to the STR-WX5/
WX7. This method is described in the manuals of the STR-WX5 and STR-WX7. Refer to these manuals for details.
This mode moves the pickup to areas where the anti-vibration is stronger. Perform this mode when returning the repaired product
to the customer.
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the s(TAPE A) button, s(TAPE B) button, and H(TAPE B)
button together in this order.
2. Press the CD SYNCHRO button while pressing the x(CD) button.
3. Wait untill z(TAPE B) indicator is on befor disconnect from the conduction jig (PFJ-1).
LED All Lit Mode
NOTE: Always perform this mode when operating the unit by itself.
This mode is used for lighting up the whole LED.
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the s(TAPE A) button, s(TAPE B) button, and H(TAPE B)
button together in this order.
2. The whole LED can be turned on and off each time the s(TAPE A) button is pressed while pressing the x(CD) button.
3. Press the three buttons in step 1 at the end.
Key Check Mode
NOTE: Always perform this mode when operating the unit by itself.
This mode is used for checking the key inputs of the buttons of the unit.
Precedure:
1. After turning ON the power of the conduction jig (PFJ-1), press the s(TAPE A) button, s(TAPE B) button, and H(TAPE B)
button together in this order.
2. Press the DOLBY NR button while pressing the x(CD) button to set the key check mode, and the indicator displays “ 3HX”.
3. The number of buttons pressed are indicated in binary digits by the indicator LED. Buttons pressed once are not counted when pressed
again.
4. Press the two buttons in step 2 at the end.
Display: 1< 2< 3
Aging Mode
NOTE: Perform the following procedure only when operating the unit by itself.
This mode is used for checking the operations of the CD player and tape deck.
The operations are the same as the aging mode described in the service manual for the STR-WX5/WX7. However as this unit does
not have a fluorescent indicator tube, operating states and error statuses cannot be checked.
If the STR-WX5/WX7 is available, set the aging mode according to those service manuals.
Aging continues in the following sequence as long as no errors occur.
MSB ↑↑LSB
Aging of CD player (12 minutes)
Aging of deck A
Aging of deck B
Aging of deck A (half)
10 minutes

7
SECTION 2
GENERAL
Front Panel
Location of Parts and Controls
1DISC SKIP/EX-CHANGE button
2DISC 1 button
3DISC 2 button
4DISC 3 button
5DISC NUMBER 1< 2< 3 indicator
6N(CD play) indicator
7X (CD pause) indicator
8ZOPEN/CLOSE button
9x(CD stop) button
0HX (CD play pause) button
qa Y(Deck A play) indicator
qs z(Deck B rec) indicator
qd X(Tape (Deck B pause)) indicator
qf Y(Deck B play) indicator
qg H(Deck B play) button
qh h(Deck B play) button
qj s(Deck B stop) button
qk A(Deck B eject) button
ql Cassette lid (Deck B)
s; DIRECTION MODE button
wa XPAUSE button
ws zREC button
wd HI-SPEED DUBBING button
wf CD SYNCHIRO button
wg DOLBY NR button
wh Cassette lid (Deck A)
wj AEJECT (Deck A) button
wk s(Deck A stop) button
wl h(Deck A play) button
e; H(Deck A play) button
ea CD Disc tray
234
56789
0
qa qs qd qf
qg
qh
qj
qk
ql
w;wawswdwfwg
wh
wj
wk
wl
e;
ea
1

8
SECTION 3
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
3-1. LOADING PANEL
3-2. BACK PANEL AND CD MECHANISM DECK
2 Pull-out the disc tray.
1 Turn the cam to the
direction of arrow.
3 Loading panel
(Remove two claws)
Two claws
1 Screw
(BVTP3x8)
2 Cover (SC)
4 Two screws
(BVTP3x10)
3 System cable
5 Three screws
(BVTP3x10)
6 Two screws
(BVTP3x8)
7 Back panel
8 Two screws
(BVTP3x10)
!º Screw
(BVTP3x10)
!¡ Flat type wire
(19core, CNS103)
!™ Connector
(CN111)
!£ Connector
(CN112)
!¢ CD mechanism deck
9 Dummy board

9
3-3. FRONT PANEL
3-4.TC MECHANISM DECK AND CASSETTE HOLDER
1 Push the 6 buttons.
(Arrow A and arrow B .)
1 Flat type wire
(13core, CNS102)
4 Connector
(CN113)
2 Flat type wire
(17core, CNS104)
5 Two screws
(BVTP3x10)
6 Lead (with connector)
7 Connector (CNP105)
Catcher
8 Front panel
(Remove the catcer)
3 Flat type wire
(15core, CNS101)
A
2
Three screws
(BVTP2.6x8)
3 Two screws
(BVTP2.6x8)
4 TC mechanism deck
5 Two springs
C
D
D
C
6
Remove the Cassette holder A
and Cassette holder B.
(Remove C first, and remove D .)
7 Eject button A
8 Eject button B
Note for installation
Set the Spring to be at the position
in the figure.
B

10
3-5. DISCTRAY
Note for installation
When installing the Disc tray, pull around the flat type wire to
pass through the claw A and claw B, as shown in the figure.
Claw B
Claw A
1
Turn the cam the
direction of arrow.
2 Pull-out the disc tray.
5 Remove the disc tray.
4 Two claws
3 Flat type wire (8 core)

11
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
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
31 to 71 g • cm
(0.43 – 0.98 oz • inch)
2 to 6 g • cm
(0.02 – 0.08 oz • inch)
71 to 143 g • cm
(0.98 – 1.99 oz • inch)
100 g or more
(3.53 oz or more)
100 g or more
(3.53 oz or more)
7. Switchesandcontrolsshouldbeset as followsunless otherwise
specified.
Record/Playback Head Azimuth Adjustment
(Deck A, Deck B)
Note: Perform this adjustments for both decks.
Procedure:
1. Mode : Playback
SECTION 4
MECHANICAL ADJUSTMENTS
Mode
FWD
FWD
back tension
REV
REV
back tension
FF/REW
FWD tension
REV tension
Torque meter
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Meter reading
SECTION 5
ELECTRICAL ADJUSTMENTS
Read before adjustments
To adjust the unit, operate the unit by itself using the conduction jig
(PFJ-1).
For details on switching functions and fast forwarding the unit, etc.
when operating it by itself, refer to “Connection and Operations of
the Unit by Itself” on page 5 of Servicing Notes.
• Turning on the power
When operating the unit by itself:
1. After turning ON the power of the conduction tool (PFJ-1),
press the π(TAPE A) button, π(TAPE B) button, and ·
(TAPE B) button together in this order.
Inputting/outputting audio signals:
Use the jack of the power supply jig (PFJ-1).
P-4-A100
WS-48B
P-4-L300
10 kHz, –10 dB
3 kHz, 0 dB
315 Hz, 0 dB
PFJ-1
Output point
Input point
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 R-
CH.
set
test tape
P-4-A100
(10kHz, -10dB)
PFJ-1
level meter
output point
Signal Used for
Tape Azimuth Adjustment
Tape Speed Adjustment
Level Adjustment

12
Tape Speed Adjustment (Deck B)
Note: Set the test mode using the following method and begin tape
speed adjustment.
In the test mode, the speed will switch to double speed or
normal speed each time the HI-SPEED DUBBING button
is pressed.
Procedure:
Press the p(CD) button while pressing the DIRECTION MODE
button.
1. Insert the WS-48B into deck B, while pressing the p(CD)
button, press the ª(TAPE A) button, set the function to
“deck B”.
2. Press the ·button of deck B.
3. Press the HI-SPEED DUBBING button and play the tape at
double speed.
4. Adjust RV1001 of the LEAF SW board so that the reading of
the frequency counter becomes 6000 ± 180 Hz.
5. Press the HI-SPEED DUBBING button and play the tape at
normal speed.
6. Adjust RV1002 of the LEAF SW board so that the reading of
the frequency counter becomes 3000 ± 90 Hz.
Adjustment Location: LEAF SW board
Sample Value of Wow and flutter
W.RMS (JIS) less than 0.3%
(test tape: WS-48B)
Playback Level Adjustment (Deck A, Deck B)
Procedure:
Mode: Playback
RV1002 RV1001
RV1002(Normal Speed
)
RV1001(High Speed)
Adjustment Location
[LEAF SW BOARD]
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.
L-CH
peak
R-CH
peak
screw
position
output
level within
1 dB
L-CH
peak R-CH peak
screw
position
within 1dB
3. Mode: Playback
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
Adjustment Location: Playback Head (Deck A)
Record/Playback/Erase Head (Deck B)
Forward
Reverse
set
test tape
P-4-L300
(315Hz, 0dB)
PFJ-1
level meter
output point
Deck A is RV311 (L-CH) and RV411 (R-CH), deck B is RV301
(L-CH) and RV401 (R-CH)
so that adjustment within the following adjustment level.
Adjustment level:
Output point from PFJ-1 playback level: 301.5 to 338.3 mV (–8.2
to –7.2 dB)
level difference between the channels: within ± 0.5 dB
Adjustment Location:AUDIO board
Waveform of oscilloscope
in phase 45
°
90 °
135 °
180 °
good wrong
set PFJ-1
oscilloscop
e
test tape
P-4-A100
(10kHz, -10dB) output point

HTC-WX5
1313
CD SECTION
Note:
1. CD Block is 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 an oscilloscope with more than 10MΩimpedance.
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
Procedure :
1. Connect oscilloscope to test point TP (FEO).
2. Connect betweentestpointTP(FOK)andGroundby lead wire.
3. Turn Power switch on.
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
between A and B. And confirm peak to peak level within 3 ±
1Vp-p.
S-curve waveform
6. After check, remove the lead wire connected in step 2.
Note: • Try to measure several times to make sure than the ratio of
A : B or B : A is more than 10 : 7.
• Takesweep time as long as possible and light up thebright-
ness to obtain best waveform.
RF Level Check
Procedure :
1. Connect oscilloscope to test point TP (RF) on BD board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in and playback.
4. Confirm that oscilloscope waveform is clear and check RF
signal 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
Procedure:
1. Connect oscilloscope to test point TP (TEO) on BD board.
2. Turned Power switch on.
3. Put disc (YEDS-18) in to play the number five track.
4. Press the “P(Pause)” button.
5. Check the level B of the oscilloscope's waveform and the A
(DC voltage) of the center of the Traverse waveform.
Confirm the following:
• A/B x 100 = less then ± 7 (%)
• B = 500 ± 100 mVp-p
1 track jump waveform
Adjustment Location:
[BD BOARD] (Conductor Side)
E-F Balance (1Track Jump) check
oscilloscope
BD board
TP (FEO)
TP (VC)
symmetry
A
B
Within 3
± 1 Vp-p
oscilloscope
BD board
TP (RF)
TP (VC)
VOLT/DIV : 200mV
TIME/DIV : 500ns
level : 1.3
± 0.3 Vp-p
oscilloscope
BD board
TP (TEO)
TP (VC)
0V
Center of the waveform
B
Symmetry
A (DC voitage)
level : 500 mV
± 100 mVp-p
TP (RF)
TP
(FOK)
IC101
TP
(VC)
TP
(GND)
TP
(TEO) TP
(FEO)
IC103
IC102
IC102
CN101
[MAIN BOARD] (Component Side)
Record Bias Adjustment (Deck B)
Procedure:
1. Press the p(CD) button while pressing the DIRECTION
MODE button.
2. While pressing the p(CD) button, press the ª(TAPEA)
button, set the function to “deck B”.
3. Insert a tape into deck B, press the rREC button, and then
press the (button to start recording.
4. Mode: Record
6. Confirm playback the signal recorded in step 2 become
adjustment level as follows.
If these levels do not adjustment level, adjust the RV341 (L-
CH) and RV441 (R-CH) on theAUDIO board to repeat steps 3
and 4.
Adjustment level: The playback output of 10 kHz level difference
against 315 Hz reference should be ± 1.0 dB.
Adjustment Location:AUDIO board
Record Level Adjustment (Deck B)
Procedure:
1. Press the p(CD) button while pressing the DIRECTION
MODE button.
2. While pressing the p(CD) button, press the ª(TAPEA)
button, set the function to “deck B”.
3. Insert a tape into deck B, press the rREC button, and then
press the (button to start recording.
4. Mode: Record
5. Mode: Playback
6. Confirm playback the signal recorded in step 2 become
adjustment level as follows.
If these levels do not adjustment level, adjust the RV301 (L-
CH) and RV351 (R-CH) on the MAIN board to repeat steps 3
and 4.
Adjustment level: Output point from PFJ-1 playback level: 47.2
to 53.0 mV (–24.3 to –23.3 dB)
Adjustment Location: MAIN board
5. Mode: Playback
RV441 RV341
RV301(Lch),RV401(Rch)
Playback Level (Deck B)
RV301 RV401
RV341(Lch),RV441(Rch)
Record Bias RV311(Lch),RV411(Rch)
Playback Level (Deck A)
RV311 RV411
CNS102
CNP105
CNS101 RV351
Record
Level (R ch)
RV301
Record
Level (L ch)
recorded
position level meter
set
PFJ-1
output
point
recorded
position level meter
set
PFJ-1
output
point
AF OSC
INPUT POINT
1) 315 Hz
2) 10 kHz
blank tape
CS-123
PFJ-1
set
attenuator 600
Ω
} 50 mV (–23.8 dB)
AF OSC blank tape
CS-123
PFJ-1 set
attenuator 600
Ω
INPUT POINT
315Hz 50 mV (–23.8 dB)
[AUDIO BOARD] (Component Side)

HTC-WX5
1414
SECTION 6
DIAGRAMS
6-1. CIRCUIT BOARDS LOCATION THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this,the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• 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 Ωand 1/4W or less unless otherwise
specified.
•¢: internal component.
•1: fusible resistor.
•C: panel designation.
For printed wiring boards.
Note:
•X: parts extracted from the component side.
•p: parts mounted on the conductor side.
•®:Through hole.
•b: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•U: B+ Line.
•V: B– Line.
•H: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
• Voltages are takenwith aVOM(Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
• Circled numbers refer to waveforms.
• Signal path.
F: FM
f: AM
E: PB (DECK A)
d: PB (DECK B)
G: REC (DECK B)
J: CD
c: digital out
IC103 @¶ MDP
1
2
3
4
5
IC101 #£ RFO
IC101 2FEI
IC101 $¶ TEI
IC103 ^™ RFCK
6
IC103 ^º XPCK
7
IC103 &¢ WFCK
IC103 *ª XTAI
8
500mV/DIV, 500nsec/DIV
1.3Vp-p
200mV/DIV, 1µsec/DIV
0.5Vp-p
50mV/DIV, 1msec/DIV
0.2Vp-p
7.8µsec
2.5Vp-p
230µsec
5Vp-p
135µsec
5Vp-p
135µsec
5Vp-p
16.9344MHz
2.6Vp-p
9
IC101 0X2
5MHz
5.5Vp-p
Note: The components identified by mark !or dotted line
with mark !are critical for safety.
Replace only with part number specified.
• Indication of transistor
CThese are omitted EB
Q
C
These are omitted
EB
MAIN board
REGULATOR boar
d
TC (A) board
TC LED board
TC (B) board
TC (P) board
CD (P) board
AUDIO board
LEAF SW board
SENSOR board
CONNECTOR board
BD board
MOTOR (SLIDE) board
MOTOR (TURN) board
•Waveform
CD SECTION
MAIN (2/2) SECTION

HTC-WX5
1515
6-2. BLOCK DIAGRAM
CD SECTIOAN
• R CH: Same as L ch
• SIGNAL PATH
: CD
: Digital out
OPTICAL PICK-UP BLOCK
DETECTOR KB+
A
D
C
B
E
F
AD
C
B
1
4
2
5
10
6
38
39
41
42
2
1
45
47
LD DRIVE
Q101 36
37
LD
PD
XRST
FOK
23
27
FOCUS/TRACKING SERVO.
RF AMP
IC101 (1/2)
6
7
12
13
20
22
21
26
25
24
33
19
44
14
15
PD1
PD2
F
E
FEI
FEO
TEO
TEI
CLK
XLT
DATA
TA O
TA M
FE M
FE O
SENS2
SENS1
C.OUT
LOCK
RF O
27 23
15 16 17 10 11 12 75 879 100
93
86
89 • 90
X101
16.9344MHz
XTAI
•
XTAO
LOUT1
LOUT2
XRST
SCOR SQSO
SQCK
SENS
DATA
XLAT
CLOK
DIGITAL SIGNAL PROCESSOR
IC103
RF
29 LOCK
CNIN
SEIN
DATAO
XLTO
CLKO
MDP
FOK
21
S101
LIMIT
SPOD
9
LASER
DIODE
TRACKING
COIL DRIVE 27
15
16
FOCUS/TRACKING
COIL DRIVE
IC102 (1/2)
FOCUS
COIL DRIVE 26
18
17
2-AXIS
DEVICE
TRACKING
COIL
FOCUS
COIL T+
F+
T–
F–
SLED
SERVO
IC101 (2/2)
SLED/SPINDLE
MOTOR DRIVE
IC102 (2/2)
1416
6
SLED MOTOR
DRIVE
11
•
12
M
M102
SLED MOTOR
SPINDLE MOTOR
DRIVE 3
13
•
14
M
M101
SPINDLE
MOTOR
SL O SL P
CD CLK
CD DATA
SENS2
SCOR
SQ DATA
SQ CLK
SENS
XRST
XLAT
16
L-CH
R-CH
A
MAIN
SECTION
MUTE
(Page 17)
M
TABLE
SENSOR
IC702 T. SENS
OPEN
S801
OPEN/CLOSE
DET
OUT1 IN1
IN2
OUT2
M
M701
TURN
MOTOR
TBL.L
TBL.R
TURN
MOTOR DRIVER
IC701
7
DISC
SENSOR
IC703
ROTARY
ENCODER
S811
Q701
DISC SENS
ENC 1
ENC 2
ENC 3
2
4
72 10
M801
SLIDE
MOTOR OUT2
OUT1 RIN
FIN
SLIDE
MOTOR DRIVER
IC801
LOAD IN
LOAD OUT
3
6
CD DIGITAL
71
D.OUT
1OUT
OPTICAL
IC107
DOUT

HTC-WX5
1616
DECK SECTION
IC611
R CH
HP101
PB HEAD
(DECK A)
L
R
RV311
PLAYBACK
LEVEL
DECK A
IC601
R CH
L
R
RV301
PLAYBACK
LEVEL
DECK B
31IC602
4
REC/PB
EQOUT
REC BIAS BIAS OSC
T621, Q621, 622
ERASE HEAD ERASE BIAS
46
48 B IN
A IN
16PB-A/B
EQIN 38
36
RV301
REC LEVEL 39 RECOUT
BIAS SW
C
M
70
120
DOLBY
TYPE B
+7.5V
Q623
RIN 44
PB 24
18
20
22
40
25
PB OUT
LM ON/
OFF
BIAS ON/OFF
RM ON/OFF
ALC ON/OFF
PB L
REC L
PB A/B
NORM/HIGH
REC/PB/PASS
BIAS ON/OFF
RM ON/OFF
15 ALC ON/OFF
RELAY REC/PB
16
B
MAIN
SECTION
LM ON/OFF
NORM/
HIGH
PAS
DOL
PR
REC/PB HEAD
(DECK B)
X
DOLBY NR
IC301
DOLBY NR
HRPE101
RV341
REC
BIAS
32 33
23
NR ON/
OFF NR ON/OFF
17
S1004
A CrO2S1008
B CrO2
19
A 120/70 B 120/70
M
CAP MOTOR
CONTROL
Q336-343
SPEED
CONTROL
Q1001
SWITCH
Q335
RV1001
HIGH
SPEED
RV1002
NORMAL
SPEED
M1
CAPSTAN
MOTOR
CAPM EMG (–)
CAP M H / L
CAPM ON/OFF (–)
CAPM ON/OFF (+)
CAPM EMG (+)
REEL
DETECT
IC1001 A SHUT
B SHUT
REEL
DETECT
IC1002
S1001 (A PLAY)
+5V
S1002 (B PLAY) A PLAY
B PLAY
B HALF
S1003
(A HALF)
+5V
+5V
S1005
(REC A)
S1006
(B HALF)
S1009
(REC B)
(Page 17)
• R CH : Same as L ch
• SIGNAL PATH
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
28 27 26
MS
MS OUT
B TRIG
A TRIG
TRIGGER
MOTOR
CONTROL
Q331-334
A DECK/
B DECK
PLUNGER
• PLUNGER SOLENOID is supplied
as the MECHANICAL BLOCK ASSY.

HTC-WX5
1717
MAIN SECTION
97
26
27
28
98
95
96
94
93
D110
RESET
IC101
+5V
11
10
X101
5MHz
15
16
65
67
72
54
70
69
CD-PLAY
D224-230
DISC1
DISC2
DISC3
EXIST1
EXIST2
EXIST3
LED
ON/OFF
SWITCH
Q214-223
TC RELAY
TC MUTE
A PLAY
B PLAY
60
61
18
76
73
74
57
48
47
75
36
34
58
TBL L
TBL R
SCOR
T SENS
SENSE 2
SENS
XRST
CD CLK
CD DATA
DISC SENS
SQ CLK
SQ DATA IN
XLAT
46
CD-POWER
55
56
IIC DATA
IIC CLK
RESET
X1
X2
MASTER CONTROL
IC101
92
90
89
88
82
84
83
PB A/B
BIAS
REC MUTE
NR ON/OFF
REC/PB
A SHUT
B SHUT
B HALF
A HALF
NORM/HI
CAPM-H/N
CAPM-EMG(-)
CAPM ON/OFF(-)
CAPM ON/OFF(+)
CAPM EMG(+)
ALC ON/OFF
A TRG
B TRG
AMS IN
DECO1
DECO2
CD-PAUSE
RELAY REC/PB
L CH
TBL. L
TBL. R
SCOR
T. SENS
SENS 2
SENS
X RST
CD CLK
CD DATA
DISC SENS
SQ CLK
SQ DATA
X LAT
B
DECK
SECTION
A
CD
SECTION
A SHUT
PB L
REC L
BIAS ON/OFF
B SHUT
RM ON/OFF
LM ON/OFF
REC/PB PASS
CAPM EMG(-)
CAPM ON/OFF(-)
CAPM ON/OFF(+)
CAPM EMG(+)
ALC ON/OFF
B HALF
A HALF
A PLAY
B PLAY
PB A / B
NORM/HIGH
NR ON/OFF
CAP M H/L
A TRG
B TRG
MS OUT 52
(Page 16)
(Page 15)
KEY
MATRIX
53
• R CH: Same as L ch
• SIGNAL PATH
: CD
: PB
: REC
81
80
79
78
64
63
OPEN
ENC1
ENC2
ENC3
LOAD IN
LOAD OUT
OPEN
ENC 1
ENC 2
ENC 3
LOAD IN
LOAD OUT
68
66
87
31
85
86
100
1
99
LED1
LED2
LED3
LED4
LED5
LED6
2
3
4
5
7
KEY B
KEY A 30
29
6
D201-206
LED
ON/OFF
SWITCH
Q201-206
+7.5V REG
Q852 +12V REG
IC851
3 1
+5V SW
Q102-104
-7.5V REG
Q855
+5V REG
IC852
3 1
+
-
+7V REG
IC853
3
A+7.5V
D+5V
A+5V
M12V
+5V
M+7V
A-7.5V
117
13
(CD R)
R CH
(PB R)
R CH
(REC R)
R CH
CNB108
TO
STR-W555
2
3
9
7
6
4
14
16
RECT
D901-904
SYSTEM
CONTROL

HTC-WX5
1818
6-3. PRINTED WIRING BOARD CD SECTION • Refer to page 14 for Circuit Boards Location.
(Page 22)
Ref. No. Location
• Semiconductor
Location
IC101 C-5
IC102 B-5
IC103 C-6
Q101 C-3

HTC-WX5
1919
6-4. SCHEMATIC DIAGRAM CD SECTION • Refer to page 14 for Waveforms. • Refer to page 30 for IC Block Diagrams. • Refer to page 31 for IC Pin Function.
(Page
23)
Can not be measured.

HTC-WX5
2020
The components identified by mark !or dotted
line with mark !are critical for safety.
Replace only with part number specified.
6-5. SCHEMATIC DIAGRAM DECK SECTION • Refer to page 31 for IC Block Diagrams.
(Page 23)