Sony XR-CA330 Installation/Connection User manual

SERVICE MANUAL
FM/AM CASSETTE CAR STEREO
US Model
XR-CA330
E Model
XR-CA340
SPECIFICATIONS
XR-CA330/CA340
Photo: XR-CA330
Ver 1.2 2002.11
Model Name Using Similar Mechanism NEW
Tape Transport Mechanism Type MG-36SZ12-32
9-873-346-03 Sony Corporation
2002K0500-1 e Vehicle Company
C2002.11 Published by Sony Engineering Corporation
AUDIO POWER SPECIFICATIONS (US model)
POWER OUTPUT AND TOTAL HARMONICDISTORTION
22 watts per channel minim m contin o s average power into 4 ohms, 4 channels
driven from 20 Hz to 20 kHz with no more than 5 % total harmonic distortion.
Cassette
Other specifications
player section
Tape track 4-track 2-channel stereo
Wow and fl tter 0.13 % (WRMS)
Freq ency response 30 – 15,000 Hz
Signal-to-noise ratio 55 dB
Tuner section
FM
T ning XR-CA330
XR-CA330
XR-CA340
XR-CA340
XR-CA330
XR-CA340
range
FM t ning interval:
50 kHz/200 kHz
switchable
87.5 – 108.0 MHz
(at 50 kHz step)
87.5 – 107.9 MHz
(at 200 kHz step)
Aerial terminal External aerial connector
Intermediate freq ency 10.7 MHz
Usable sensitivity 11 dBf
Selectivity 75 dB at 400 kHz
Signal-to-noise ratio 62 dB (stereo),
68 dB (mono)
Harmonic distortion at 1 kHz
0.7 % (stereo),
0.5 % (mono)
Separation 33 dB at 1 kHz
Freq ency response 30 – 15,000 Hz
AM
T ning range
AM t ning interval:
9 kHz/10 kHz switchable
531 – 1,602 kHz
(at 9 kHz step)
530 – 1,710 kHz
(at 10 kHz step)
General
O tp ts A dio o tp t
Power aerial relay control
lead
Power amplifier control
lead
Inp t (XR-CA340 only) Telephone ATT control
lead
Tone controls
Bass ±9 dB at 100 Hz
Treble ±9 dB at 10 kHz
Power req irements 12 V DC car battery
(negative earth)
S pplied accessories Parts for installation and
connections (1 set)
Front panel case (1)
Design and specifications are subject to change
without notice.
FM t ning interval:
87.5 – 107.9 MHz
(at 200 kHz step)
AM t ning interval:
530 – 1,710 kHz
(at 10 kHz step)
Bass ±10 dB at 20 Hz
Treble ±10 dB at 20 kHz
Dimensions Approx. 178 × 50 × 178 mm
(7 1/8 × 2 × 7 1/8 in.)
(w/h/d)
Mo nting dimensions Approx. 182 × 53 × 161 mm
(7 1/4 × 2 1/8 × 6 3/8 in.)
(w/h/d)
Mass Approx. 1.2 kg (2 lb 10 oz.)
Aerial terminal External aerial connector
Intermediate freq ency 10.7 MHz/450kHz
Sensitivity 30 µV
Power amplifier section
O tp ts Speaker o tp ts
(s re seal connectors)
Speaker impedance 4 – 8 ohms
Maxim m power o tp t 45 W × 4 (at 4 ohms)

2
XR-CA330/CA340
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C dur-
ing 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.
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.
TABLE OF CONTENTS
1. GENERAL
Location of Controls ....................................................... 3
Setting the Clock ............................................................. 3
Installation....................................................................... 4
Connections ..................................................................... 5
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 8
2-2. Sub Panel ......................................................................... 8
2-3. Mechanism Deck (MG-36SZ12-32)............................... 9
2-4. MAIN Board ................................................................... 9
2-5. Heat Sink ......................................................................... 10
2-6. Bracket (MD) .................................................................. 10
2-7. Motor (Capstan/Reel) (M901) ........................................ 11
2-8. Main Belt, Sub Belt (C) .................................................. 11
2-9. Head (Playback) (HP901) ............................................... 12
3. MECHANICAL ADJUSTMENTS....................... 13
4. ELECTRICAL ADJUSTMENTS......................... 13
Tape Deck Section .......................................................... 14
Tuner Section .................................................................. 15
5. DIAGRAMS
5-1. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 18
5-2. Printed Wiring Board – MAIN Board – ........................ 19
5-3. Schematic Diagram – MAIN Board (1/2) – .................. 20
5-4. Schematic Diagram – MAIN Board (2/2) – .................. 21
5-5. Printed Wiring Board – CONTROL Board – ................ 22
5-6. Schematic Diagram – CONTROL Board –................... 23
5-7. IC Pin Function Description ........................................... 25
6. EXPLODED VIEWS
6-1. General Section ............................................................... 27
6-2. Front Panel Section ......................................................... 28
6-3. Mechanism Deck Section (MG-36SZ12-32) ................. 29
7. ELECTRICAL PARTS LIST ............................... 30
Ver 1.2
SERVICING NOTE
TYPE A/B DISCRIMINATION
In this set with following serial No. or later IC500 on MAIN board
has been changed in the midway of production. With the conse-
quence of this change, parts mounted on MAIN board have been
changed.
MODEL TYPE SERIAL No.
XR-CA330 A 2620428 or before
B 2620429 or later
XR-CA340 TYPE A only (No TYPE B)

3
XR-CA330/CA340
SECTION 1
GENERAL This section is extracted from
instruction manual.
Location of controls
RELEASE
DIR
654321 BT M DSPLAT T
SEEK
AMS
SENS
SEL
MODE
SRC
SOURCE
D-BASS
OFF
MBP
D
DISC REP SHUF ATA
Refer to the pages listed for details.
1Volume +/– button 7
2MODE button
During radio reception:
BAND select 8, 9
During CD/MD playback:
CD/MD unit select 12
3SOURCE (TUNER/CD/MD) button
8, 9, 12
4SEL (select) button 7, 10, 11, 12
5Z(eject) button 7, 8, 9, 12
6Display window
7m/M(fast winding)/DIR (tape
transport direction change) buttons 7, 8
8MBP (My Best sound Position) button
11
9D-BASS button 11
q; SEEK/AMS +/– button 9, 13
Seek 9
Automatic Music Sensor 13
Manual search 13
qa RELEASE (front panel release) button
6, 14
qs ATT (attenuate) button 10
qd SENS button 9
qf RESET button (located on the front side
of the unit behind the front panel) 6
qg Frequency select switch (XR-CA340 only)
(located on the bottom of the unit)
See “Frequency select switch” in the
Installation/Connections manual.
qh Number buttons 8, 9, 10, 12, 13
During radio reception:
Preset number select 9
During tape playback:
(6) ATA 8
During CD/MD playback:
(1) DISC – 13
(2) DISC + 13
(3) REP 13
(4) SHUF 13
qj BTM button 8
qk DSPL (display mode change) button
7, 12
ql OFF button*6
*Warning when installing in a car
without ACC (accessory) position on
the ignition key switch
Be sure to press (OFF) on the unit for two
seconds to turn off the clock display after
turning off the engine.
When you press (OFF) momentarily the
clock display does not turn off and this
causes battery wear.
Setting the clock
The clock uses a 12-hour digital indication.
Example: To set the clock to 10:08
1Press (DSPL) for two seconds.
The hour indication flashes.
1Press either side of the volume button
to set the hour.
2Press (SEL).
The minute indication flashes.
3Press either side of the volume button
to set the minute.
2Press (DSPL).
The clock starts.
After the clock setting is complete the
display returns to normal playback mode.
to go forward
to go back
to go forward
to go back

4
XR-CA330/CA340
182 mm
53 mm
Installation
Precautions
•Choose the installation location carefully so that the unit will not interfere with normal driving.
•Avoid installing the unit in areas subject to dust, dirt, excessive vibration, or high temperatures, such as
in direct sunlight or near heater ducts.
•Use only the supplied mounting hardware for a safe and secure installation.
Mounting angle adjustment
Adjust the mounting angle to less than 2 °.
How to detach and attach the front panel
Before installing the unit, detach the front panel.
A To detach
Before detaching the front panel, be sure to press (OFF). Press (RELEASE), then slide the front panel a
little to the left, and pull it off towards you.
B To attach
Attach part A of the front panel to part B of the unit as illustrated and push the left side into position
until it clicks.
AB
Mounting example (Installation in the dashboard)
123
1
Bend these claws outward for a tight
fit, if necessary.
5
Dashboard
Fire wall
2
3
1
4
max. size M5 × 8 mm
Mounting the unit in a Japanese car
You may not be able to install this unit in some makes of Japanese cars. In such a case, consult your Sony
dealer.
TOYOTA NISSAN
to dashboard centre console
Existing parts supplied to your car
Bracket
to dashboard centre console
Bracket
4 max.size M5 × 8 mm
Note
To prevent malfunction, install only with the supplied screws 4.
Existing parts supplied to your car
4 max. size M5 × 8 mm 4 max. size M5 × 8 mm
First attach 5 to the unit, then insert the unit into 1.
(OFF)
(RELEASE)
Bracket
BA
With the UP marking up
Bracket
(XR-CA340 only)

5
XR-CA330/CA340
Connections
Cautions
•This unit is designed for negative earth 12 V DC operation only.
•Be careful not to pinch any wires between a screw and the body of the car or this unit or between any
moving parts such as the seat railing, etc.
•Before making connections, disconnect the earth terminal of the car battery to avoid short circuits.
•Connect the yellow and red power input leads only after all other leads have been connected.
•Be sure to connect the red power input lead to the positive 12 V power terminal which is energized
when the ignition key is in the accessory position.
•Run all earth wires to a common earth point.
•Connect the yellow cord to a free car circuit rated higher than the unit’s fuse rating. If you connect this
unit in series with other stereo components, the car circuit they are connected to must be rated higher
than the sum of the individual component’s fuse rating. If there are no car circuits rated as high as the
unit’s fuse rating, connect the unit directly to the battery. If no car circuits are available for connecting
this unit, connect the unit to a car circuit rated higher than the unit’s fuse rating in such a way that if the
unit blows its fuse, no other circuits will be cut off.
•Be sure to insulate any loose unconnected wires with electrical tape for safety.
•When installing a car without ACC (accessory) position on the ignition key switch, connect the red
power input lead to the +12 V power terminal which is energized at all times with the yellow lead.
Frequency select switch (XR-CA340 only)
The AM (FM) tuning interval is factory-set to the 9 K (5 K) position. If the frequency allocation system of
your country is based on 1 kHz (2 kHz) interval, set the switch on the bottom of the unit to the 1 K
(2 K) position before making connections.
Note
When you change the position of the switch, be sure to press the reset buttons after the connections are
completed.
Warning when installing in a car without ACC (accessory) position on
the ignition key switch
Be sure to press (OFF) on the unit for two seconds to turn off the clock display after turned off the
engine.
When you press (OFF) momentarily, the clock display does not turn off and this causes battery wear.
Reset button
When the installation and connections are over, be sure to press the reset button with a ballpoint pen, etc.
Change the position with a jeweler’s screwdriver, etc.
Cautions
•Cautionary notice for handling the bracket 1.
Handle the bracket carefully to avoid injuring your fingers.
•Remove the protection collar 5 before installing.
Release the catch lock as illustrated.
5
1

6
XR-CA330/CA340
BUS
AUDIO IN AUDIO OUT
to the interface cable of a car telephone
to the +12 V power terminal which is energized at the accessory position
of the ignition key switch
Notes
• If there is no accessory position, connect to the +12 V power (battery)
terminal which is energized at all times.
Be sure to connect the black earth lead to it first.
• When your car has a built-in FM/AM aerial in the rear/side glass, see
“Notes on the control and power supply leads.”
to the power aerial control lead or power supply lead of aerial booster
amplifier
Notes
• It is not necessary to connect this lead if there is no power aerial or aeria
booster, or with a manually-operated telescopic aerial.
• When your car has a built-in FM/AM aerial in the rear/side glass, see
“Notes on the control and power supply leads.”
AUDIO
OUT
from a car aerial
BUS CONTROL IN
Fuse (10 A)
7
BUS AUDIO IN
AMP REM Blue/white striped
Max. supply current 0.3 A
Max. supply current 0.1 A
ANT REM Blue
Sky blue
ATT
Red
Yellow
Black
Purple
Green
Grey
White
Right
Left
Right
Left
to AMP REMOTE IN of the optional power amplifier
This connection is only for ampilifiers. Connecting any other system may
damage the unit.
Source selector
(not supplied)
Supplied with the CD/MD changer
Supplied with the XA-C30
RCA pin cord (not supplied)
Notes on the control and power supply leads
• The power aerial control lead (blue) supplies +12 V DC when you turn on the unit.
• When your car has a built-in FM/AM aerial in the rear/side glass, it is necessary to connect the power aerial
control lead (blue) or the accessory power input lead (red) to the power terminal of the existing aerial booster.
For details, consult your dealer.
• A power aerial without a relay box cannot be used with this unit.
Memory hold connection
When the yellow power input lead is connected, power will always be supplied to the memory circuit even when
the ignition switch is turned off.
Notes on speaker connection
• Before connecting the speakers, turn the unit off.
• Use speakers with an impedance of 4 to 8 ohms, and with adequate power handling capacities. Otherwise, the
speakers may be damaged.
• Do not connect the terminals of the speaker system to the car chassis, and do not connect the terminals of the
right speaker with those of the left speaker.
• Do not attempt to connect the speakers in parallel.
• Do not connect any active speakers (with built-in amplifiers) to the speaker terminals of the unit. Doing so may
damage the active speakers. Be sure to connect passive speakers to these terminals.
to the +12 V power terminal which is energized at all times
Be sure to connect the black earth lead first.
to a metal place in the car
First connect the black earth lead, then connect the yellow and red
power input leads.
Connection diagram
White/black striped
Grey/black striped
Green/black striped
Purple/black striped
XR-CA340 only

7
XR-CA330/CA340
Connection example
Equipment used in illustrations (not supplied)
Power amplifierFront speakers
Rear speakers
CD/MD changer
A
B
BUS CONTROL IN
BUS AUDIO IN
BUS AUDIO IN
BUS CONTROL IN
Source selector
(not supplied)
C
Notes
•Be sure to connect the earth cord before connecting the amplifier.
•If you connect an optional power amplifier and do not use the built-in amplifier, the beep sound will
be deactivated.
AUDIO OUT
For connecting two or more changers, the source selector XA-C30 (optional) is necessary.

XR-CA330/CA340
8
SECTION 2
DISASSEMBLY
Note: Follow the disassembly procedure in the numerical order given.
2-2. SUB PANEL
1 two claws
1 claw
1 two claws
2 sub panel
• This set can be disassembled in the order shown below.
2-1. DISASSEMBLY FLOW
Note 1: The process described in can be performed in any order.
Note 2: Without completing the process described in , the next process can not be performed.
Note 3: Illustration of disassembly is omitted.
SET
2-2. SUB PANEL
(Page 8)
FRONT PANEL SECTION
(Note 3) COVER
(Note 3)
2-3. MECHANISM DECK (MG-36SZ12-32)
(Page 9)
2-4. MAIN BOARD
(Page 9)
2-5. HEAT SINK
(Page 10)
2-6. BRACKET (MD)
(Page 10)
2-7. MOTOR
(CAPSTAN/REEL) (M901)
(Page 11)
2-8. MAIN BELT,
SUB BELT (C)
(Page 11)
2-9. HEAD
(PLAYBACK) (HP901)
(Page 12)

XR-CA330/CA340
9
2-3. MECHANISM DECK (MG-36SZ12-32)
2 two screws
(BTP2.6
× 6)
1 connector
(CN350)
1 connector
(CN300)
3 mechanism deck
(MG-36SZ12-32)
2 two screws
(BTP2.6
× 6)
2-4. MAIN BOARD
2 two ground point screws
(PTT2.6
× 6)
3 two screws
(BTP2.6
× 10)
3 screw
(BTP2.6
× 10)
4 main board
1 claw

XR-CA330/CA340
10
2-5. HEAT SINK
1 five screws
(PTT2.6
× 10)
1 two screws
(PTT2.6
× 10)
2 heat sink
2-6. BRACKET (MD)
1 claw
1 claw
1 claw
2 four screws
(B2.6
× 4)
3 bracket (MD)

XR-CA330/CA340
11
2-7. MOTOR (CAPSTAN/REEL) (M901)
1 two screws
(P2 × 2.5)
4 motor (capstan/reel)
(M901)
3 sub belt (C)
2 main belt
Note :When installing motor,
adjust the screw and
screw hole of motor.
2-8. MAIN BELT, SUB BELT (C)
1 main belt
4 sub belt (c)
2 screw
(PTP2
× 3)
A
2
screw
(PTP2 × 3)
2 screw
(PTP2 × 3)
2 screw
(PTP2 × 3)
3 Lift up the bottom BKT (TS)
in the direction of arrow A
(as far as the belt can be removed).

XR-CA330/CA340
12
2-9. HEAD (PLAYBACK) (HP901)
2 screw
(PTT2 × 4)
1 screw
(P2 × 3)
3 FF/REV lever section
9 screw
(P2
× 4)
5 screw
(PTP2
× 3)
qd Remove three head lead
wires from the
adjuster arm blue.
head (HP901)
head lead wire
adjuster arm blue • HEAD LEAD WIRE COLOR INDICATION
ON HEAD (HP901) AND SLIDE SW BOARD.
0 SPG support plate
7 PSW (reel) B
8 HP roller (A)
qa adjuster arm SPG (A)
qs adjuster arm SPG (B)
qf head (play back) (HP901)
6 slide SW board
4 Remove the three solders
of head lead wires.
yellow lead wire
black lead wire
red lead wire slide SW board

13
XR-CA330/CA340
SECTION 3
MECHANICAL ADJUSTMENTS SECTION 4
ELECTRICAL ADJUSTMENTS
Mode Tension Meter Meter Reading
Forward CQ-403A more than 5.89 mN•m
(more than 60 g)
Reverse CQ-403R (more than 2.12 oz)
•TapeTension Measurement
1. Clean the following parts with a denatured-alcohol-moistened
swab:
playback head pinch roller
rubber belt capstan
idler
2. Demagnetize the playback head with a head demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. The adjustments should be performed with the power supply
voltage (14.4V) unless otherwise noted.
Note: With this set, it is not necessary to apply suitable locking
compound to the parts after the azimuth adjustment.
•Torque Measurement
Mode Torque Meter Meter Reading
2.46 – 5.39 mN•m
Forward CQ-102C (25 – 55 g•cm)
(0.35 – 0.76 oz•inch)
Forward 0.15 – 0.39 mN•m
CQ-102C (1.5 – 4 g•cm)
Back Tension (0.02 – 0.06 oz•inch)
2.46 – 5.39 mN•m
Reverse CQ-102RC (25 – 55 g•cm)
(0.35 – 0.76 oz•inch)
Reverse 0.15– 0.39 mN•m
CQ-102RC (1.5 – 4 g•cm)
Back Tension (0.02 – 0.06 oz•inch)
4.91 – 14.70 mN•m
FF, REW CQ-201B (50 – 150 g•cm)
(0.69 – 2.08 oz•inch)
TEST MODE
This set have the test mode function. In the test mode, FM Auto
Seek/Stop Level and AM Auto Seek/Stop Level adjustments can
be performed easier than it in ordinary procedure.
<Set the Test Mode>
1. Turn ON the regulated power supply. (All LEDs on the set
lights up, and the clock is displayed.)
Note: Press the [OFF] button, if the clock is not displayed.
2. Push the [4] button.
3. Push the [5] button.
4. Press the [1] button for more than two seconds.
5. Then the display indicates all lights, the test mode is set.
<Release the Test mode>
1. Push the [OFF] button.

14
XR-CA330/CA340
TAPE DECK SECTION 0 dB= 0.775 V
1. The adjustments should be performed in the order given in
this service manual.
2. The adjustments should be performed for both L-CH and
R-CH.
TestTape
PB Head Azimuth Adjustment
Procedure:
1. Put the set into the FWD PB mode.
2. Turn the screw and check the output peak value. Adjust the
screw so that the peak value in channels L and R coincides
within 3 dB.
3. Check the phase in the FWD PB mode.
4. Repeat the above adjustment for the REV PB mode.
5. Check that output level difference between FWD PB mode
and REV PB mode is within 4 dB.
Type Signal Used for
P-4-A063 6.3 kHz, –10 dB head azimuth adjustment
WS-48A 3 kHz, 0 dB tape speed adjustment
Adjustment Location: PB head
Tape Speed Adjustment
Setting:
Procedure:
1. Put the set into the FWD PB mode.
2. Adjust adjustment resistor for inside capstan motor so that the
reading on the frequency counter becomes in 3,015 Hz.
Specified Value: 2,940 to 3,090 Hz
Adjustment Location: See page 17.
level
meter
test tape
P-4-A063
(6.3 kHz, –10 dB)
set
speaker out terminal
4 Ω
+
–
screw
position
L-CH
peak
within
3 dB
output
level
L-CH
peak
R-CH
peak
within
3 dB
angl
e
R-CH
peak
test tape
P-4-A063
(6.3 kHz, –10 dB)
L-CH
R-CH
speaker out terminal
oscilloscope
VH
++
––
Screen pattern
in phase
good wrong
45 °90 °135 °180 °
4 Ω
4 Ω
set
frequency counte
r
test tape
WS-48A
(3 kHz, 0 dB)
set
speaker out terminal
–
+
4 Ω
FWD
REV





adjustment
screws

15
XR-CA330/CA340
TUNER SECTION
0 dB=1 µV
Cautions during repair
When the tuner unit is defective, replace it by a new one be-
cause its internal block is difficult to repair.
Note: Adjust the tuner section in the sequence shown below.
1. FM Auto Seek/Stop LevelAdjustment
2. FM Stereo Separation Adjustment
3. AM Auto Seek/Stop Level Adjustment
FM Auto Seek/Stop Level Adjustment
Setting:
[SOURCE] button: FM
[FREQUENCY SELECT] switch:FM50k(XR-CA340 only)
Procedure:
1. Set to the test mode. (see page 13)
2. Push the [SOURCE] button and set to FM.
Display
3. Adjust with the volume RV3 on TU100 so that the “FM” indi-
cation turns to “FM0” indication on the display window.
But, in case of already indicated “FM0”, turn the RV3 so that
put out light “0” indication and adjustment.
Display
Adjustment Location: See page 17.
FM RF signal
generator dummy
antenna
Carrier frequency : 97.9 MHz (XR-CA330)
98.00 MHz (XR-CA340)
Output level : 22 dB (12.6 µV)
Mode : mono
Modulation : 1 kHz, 22.5 kHz deviation (30%)
antenna
jack (ANT100)
set
50 Ω
50 Ω
0.1µF
SHUF
(XR-CA330)
SHUF
(XR-CA340)
SHUF
(XR-CA330)
SHUF
(XR-CA340)

16
XR-CA330/CA340
FM Stereo Separation Adjustment
Setting:
[SOURCE] button: FM
[FREQUENCY SELECT] switch:FM 50 k (XR-CA340 only)
Procedure:
L-CH Stereo separation: A-B
R-CH Stereo separation: C-D
The separations of both channels should be equal.
Specified Value: Separation more than 30 dB
Adjustment Location: See page 17.
FM RF signal
generator
Carrier frequency : 97.9 MHz (XR-CA330)
98.00 MHz (XR-CA340)
Output level : 70 dB (3.2 mV)
Mode : stereo
Modulation : main: 1 kHz, 20 kHz deviation (26.7%)
sub: 1 kHz, 20 kHz deviation (26.7%)
:19 kHz pilot: 7.5 kHz deviation (10%)
0.01 µF
set
antenna jack (ANT100)
+
–
speaker out terminal
level meter
10 kΩ
AM Auto Seek/Stop Level Adjustmant
Make this adjustment after “FM Auto Seek/Stop Level Adjust-
ment”.
Setting:
[SOURCE] button: AM
[FREQUENCY SELECT] switch:AM 9 k (XR-CA340 only)
Procedure:
1. Set to the test mode. (see page 13)
2. Push the [SOURCE] button and set to FM.
3. Push the [MODE] button and set to AM.
Display
4. Adjust with the volume RV1 on TU100 so that the “AM” indi-
cation turns to “AM0” indication on the display window. But,
in case of already indicated “AM0”, turn the RV1 so that put
out light “0” indication and adjustment.
Display
Adjustment Location: See page 17.
SHUF
(XR-CA330)
SHUF
(XR-CA340)
AM RF signal
generator
Carrier frequency : 1000 kHz (XR-CA330)
999 kHz (XR-CA340)
30% amplitude
modulation by
1 kHz signal
Output level : 33 dB (44.7 µV)
(50 Ω)set
AM dummy antenna
30 Ω15 pF
65 pF
antenna jack
(ANT100)
SHUF
(XR-CA330)
SHUF
(XR-CA340)
FM Stereo Level meter Level meter
signal generator connection reading (dB)
output channel
L-CH L-CH A
B
R-CH L-CH Adjust RV2 on TU100
for minimum reading.
R-CH R-CH C
D
L-CH R-CH Adjust RV2 on TU100
for minimum reading.

17
XR-CA330/CA340
Adjustment Location:
–Set Upper View –
TU100
RV2
FM Stereo Separation Adjustment
Tape Speed Adjustment
RV3
FM Auto Seek/Stop Level Adjustment
RV1
AM Auto Seek/Stop Level Adjustment
–Set Bottom View –
10 k (AM)
200 k (FM)
N
9 k (AM)
50 k (FM)
FREQUENCY
SELECT
switch
S60
(XR-CA340 only)

18
XR-CA330/CA340 SECTION 5
DIAGRAMS
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 Ωand 1/4W or less unless otherwise
specified.
•C: panel designation.
•A: B+ Line.
• Powervoltageis dc14.4V andfed withregulated dc power
supply from ACC and BATT cords.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark : FM
( ) : AM
〈〈 〉〉 :TAPE PLAYBACK
• Voltages are takenwith aVOM (Inputimpedance 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:TAPE PLAYBACK
L: BUS AUDIO IN
Note on PrintedWiring Board:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•z:Through hole.
•: Pattern from the side which enables seeing.
•: Carbon pattern.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Partsonthe pattern facesideseen from
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
5-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

XR-CA330/CA340
1919
D100 I-3
D351 H-4
D450 D-5
D500 C-7
D501 C-7
D502 C-7
D503 C-7
D504 C-7
D505 D-7
D506 D-7
D507 D-7
D620 D-6
D622 D-5
D630 D-6
D640 D-10
D650 G-11
D700 H-11
D710 D-11
D720 E-9
D721 D-8
D723 D-8
D724 D-9
D731 H-12
D740 D-10
D741 E-10
D750 J-10
D800 E-11
D801 D-11
D802 E-11
D805 E-11
IC1 G-8
IC2 G-11
IC350 G-4
IC400 E-4
IC500 B-7
IC800 E-11
Q450 D-4
Q451 D-4
Q452 D-5
Q453 D-3
Q620 D-5
Q621 E-6
Q630 E-6
Q640 E-10
Q650 G-11
Q700 I-11
Q702 I-10
Q703 I-11
Q704 I-10
Q720 E-9
Q721 E-9
Q722 E-8
Q724 E-7
Q725 E-8
Q726 E-7
Q730 H-11
Q731 H-11
Q732 G-11
Q733 H-11
Q734 H-10
Q740 D-10
Q741 E-10
Q750 I-10
R703 J-10
R27
R802
R803
R801
ECB
Q741
C741
R740
R800
C800
R811
R810
BCE
Q650
C81
IC2
3
4
2
1
ECB
Q732
ECB
Q731
C731
R732
R81
C733
R11
R608
ECB
Q733
ECB
Q734
E
C
B
Q730
R700
R705
ECB
Q702
ECB
Q704
ECB
Q750
C750
R753
R751R752
D750
KA
C4
C3
R9
R8
R10
C1 C2
R4
R3
C5
C21
C22
R22
R23
C82 R208
R644
BCE
Q640
BCE
Q720
BCE
Q721
D720
A
K
R643
R642
R641
R720
C721
ECB
Q725
R728
BCE
Q726
C500
C465
R632
R633
ECB
Q630
R635
R634
C50
C504 R502
R620
R621
R500
ECB
Q621
C621
C501
C467
C464
C466
C463C462
BCE
Q620
R503
C443
C442
R452R451
BCE
Q451
ECB
Q452
R460
R456
C458C456
R459
R455
C454
C460
R461
R457
R458
R454
BCE
Q453
ECB
Q450
R450
R453
C430
R430 R432
C431
R433
R431
C440
C441
C415
C414
R411
R410
C413
C411
C164
C401
C425
R421
R420
C424
C423
C421
C403
R401
C51 C52
R41
R62R63
R64
R61
R76
R69
R1
R2
C8
R73
R70
R71
R72
R68
R12
R358
R356
C358
C367
R361
C366
R362
C357
R365
R357
C359
R359
R360
C131
R131
C363
R352
C352
C365
R350
C350 C364
C351
R351 R363
R354 R355
C362
C120
R122
R130
R120
C130
R123
C121
R121
C104
R855
R116
R115
R117
R111
C111
C361
C356
C165
R108
C109
R103
C103 C101 L101
C702
C700
C506
R730
R853
IC400
1
18
36
19
IC1
1
25
26
5051
75
76
100
IC800
1
7
14
8
IC350
5
8
4
1
L710
D710
D801
D802
D800
D805
R650
D650
C730
+
D731
R731
C732
C734
+
+
C743
+
D700
CN350
1
8
1-683-562-
11
Q700
Q703
R702 R701
R703
S1
(RESET)
R607
R67
X4
R733
R105
R107
R106
L1
R21
C742
C740
++
C720
+
D640
R640
C722
+
Q740
D741
D740
TH800
C710
+
CN800
1
2
3
4
5
6
7
8
C801
+
CN700
(POWER)
16
8
9
1
F901
18
17
19
D724
Q722
R722 R721
R26
X1
R622
R501
R34 R33 R32
R631
R725
Q724
S60
FM
200K
r
50K
AM
10K
r
9K
FREQUENCY
SELECT
S60
C7
+
R852
D721
D723
IC500
25
24
1
2
D500
D501
D503
D502
C507
+
D630
R630
D622
D620
C503
+
C622
C620
++
R104
R102
C420
C400
+
+
C354
C161
C124
+
+
+
C422
C426
+
+
C402
+
D450
C452
C451
++
C163
C162
L R
BUS
AUIDO IN
+
+
L R
AUDIO
OUT
CN400
C450
C453
++
C416
+
C412
C410
C125
+
+
+
C355
C160
+
+
1
26
TU100
FM/AM TUNER UNIT
14
13
D100
C360
C353
R364
+
+
CN600
1
2
11
12
ACONTROL BOARD
CN900
R606 R605 R604 R603
R602
R601
R600
CP100
ANT100
(FM/AM ANTENNA)
C102
L100
+
5 4
87
6
2 13
(FRONT VIEW)
(FOR SONY BUS)
BUS CONTROL IN
CN800
18
M901
(CAPSTAN/REEL)
M
RED
BLU
S901
(DIRECTION)
REV
m
FWD
BRN
BRN
ORG
ORG
S902
(FF/REW)
(OFF : PLAYBACK)
S903
(TAPE DETECT)
(ON : TAPE IN)
YEL YEL
TO
CN350
TO
CN700
91FRONT LCH (+)
FRONT LCH (–)
REAR LCH (+)
REAR LCH (–)
REAR RCH (+)
REAR RCH (–)
FRONT RCH (+)
FRONT RCH (–)
AMP REM
ATT
ANT REM
ACC
GND
BATT
10 2
11 3
12 4
13 5
14 6
15 7
16 8
CN300
1
3
HP901
PLAYBACK
HEAD
C640
+
D505
D504
D507
D506
D351
R704
MAIN BOARD
R724
R723
R706
R353
A
B
C
D
E
F
G
H
I
1 2 3 4 5 6 7 8 9 10 11 12 13
J(CHASSIS)
R366
R7 (CHASSIS)
(CA330)
(CA330) (CA340)
(CA340)
(CA330)
(CA330)
(CA340) (CA340)
(CA340)
(CA340)
C505
(TYPE B)
C502
+
(TYPE B)
WHT
WHT/BLK
GRN
GRN/BLK
VIO
VIO/BLK
GRY
GRY/BLK
BLU/WHT
LIGHT BLU
BLU
RED
BLK
YEL
5-2. PRINTED WIRING BOARD – MAIN Board – • Refer to servicing note (page 2) for discrimination of TYPE A/B.
Ref. No. Location
• Semiconductor
Location
(Page 22)
Ver 1.2

XR-CA330/CA340
2020
5-3. SCHEMATIC DIAGRAM – MAIN Board (1/2) – • See page 24 forWaveforms.
(Page
23)
(Page
21)