Sony HCDEP-50 Service manual

HCD-EP50

SERVICE MANUAL

Ver 1.1 2001.09

HCD-EP50 is the amplifier, CD pla yer, tape
deck and tuner section in CMT-EP50.

CD
Section

TAPE
Section

SPECIFICATIONS

AUDIO POWER SPECIFICATIONS:
(US model only)

POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:

with 8 Ω loads both channels driven, from 120

- 10,000 Hz; rates 12 W per channel minimum
RMS power, with no more than 10% total
harmonic distortion from 250 mW to rated
output.

Amplifier section Canadian model:

Continuous RMS power output (reference)

AEP, UK models:

DIN power output (rated) 11 + 11 W
Continuous RMS power output (reference)

Music power output (reference)

Other models:

The following measured at AC 230 V, 50/60 Hz
DIN power output (rated) 11 + 11 W

Continuous RMS power output (reference)

Outputs
PHONES: Accepts headphones of
(stereo mini jack) 8 Ω or more
SPEAKER: Accepts impedance of 8 to

12 + 12 W
(8 Ω at 1 kHz, 10% THD)

(8 Ω at 1 kHz, DIN)
12 + 12 W

(8 Ω at 1 kHz, 10% THD)
27 + 27 W

(8 Ω at 1 kHz, DIN)
12 + 12 W

(8 Ω at 1 kHz, 10% THD)

16 Ω

CD player section

System Compact disc and digital
Laser Semiconductor laser

Frequency response 20 Hz - 20 kHz (±0.5 dB)

Tape player section

Recording system 4-track 2-channel stereo
Frequency response 50 - 13 000 Hz (±3 dB),

Tuner section

FM stereo, FM/AM superheterodyne tuner

FM tuner section

Tuning range 87.5 - 108.0 MHz
Antenna FM lead antenna
Antenna terminal 75 Ω coaxial
Intermediate frequency 10.7 MHz

AM tuner section

Tuning range
Pan-American model: 530 - 1 710 kHz

European model: 531 -1 602 kHz

US Model

Canadian Model

AEP Model

UK Model

Chinese Model

Model Name Using Similar Mechanism HCD-EP30
CD Mechanism Type CS-21SC-1280
Model Name Using Similar Mechanism NEW
T ape Tr ansport Mechanism Type CRL3439

audio system
(λ=780 nm)

Emission duration:
continuous

using Sony TYPE I
cassette

(with the interval set at
10 kHz)
531 - 1 710 kHz
(with the interval set at
9 kHz)

(with the interval set at
9 kHz)

Other models: 531 - 1 602 kHz

Antenna AM loop antenna
Antenna terminal External antenna terminal
Intermediate frequency 450 kHz

General

Power requirements
US, Canadian models: 120 V AC, 60 Hz
AEP, UK models: 230 V AC, 50/60 Hz
Mexican model: 120 V AC, 60 Hz
Argentine model: 220 V AC, 50/60 Hz
Hong Kong model: 230 V AC, 50/60 Hz
Chinese model: 220 V AC, 50/60 Hz
Other models: 230 V AC, 50/60 Hz

Power consumption
US model: 35 W
Canadian model: 35 W
AEP, UK models: 40 W

Other models: 40 W
Dimensions (w/h/d):
Mass: Approx. 3.4 kg
Supplied accessories: AM loop antenna (1)

Design and specifications are subject to change
without notice.

(with the interval set at
9 kHz)
530 - 1 710 kHz
(with the interval set at
10 kHz)

0.9 W (in the standby
mode)

Approx. 145 × 238 × 234 mm

Remote Commander (1)
Batteries (2)
FM lead antenna (1)
Speaker pads (8)

E Model

9-873-897-12 Sony Corporation

2001I0500-1 Home Audio Company
C 2001.9 Shinagawa Tec Service Manual Production Group

COMPACT DISC DECK RECEIVER

HCD-EP50

TABLE OF CONTENTS

1. SERVICING NOTES ................................................ 4

2. GENERAL ................................................................... 5

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 7

3-2. Front Panel Section ......................................................... 8

3-3. MAIN Board ................................................................... 8

3-4. CD Cabinet Section......................................................... 9

3-5. CD Mechanism Deck (CS-21SC-1280) ......................... 9

3-6. Tape Mechanism Deck (CRL3439) ................................ 10

3-7. Cassette Lid ..................................................................... 10

4. MECHANICAL ADJUSTMENTS....................... 11

5. ELECTRICAL ADJUSTMENTS......................... 11

6. DIAGRAMS

6-1. Block Diagram – TUNER Section – ............................. 15

6-2. Block Diagram – TAPE DECK Section – ..................... 16

6-3. Block Diagram – MAIN Section – ................................ 17

6-4. Block Diagram

– DISPLAY/POWER SUPPLY Section – ...................... 18

6-5. Note for Printed Wiring Boards and

Schematic Diagrams ....................................................... 19

6-6. Schematic Diagram – FM TUNER Section – ............... 19

6-7. Schematic Diagram – MAIN Board (1/3) – .................. 20

6-8. Schematic Diagram – MAIN Board (2/3) – .................. 21

6-9. Schematic Diagram

– MAIN (3/3)/HEADPHONE Boards – ......................... 22

6-10. Printed Wiring Boards

– MAIN/HEADPHONE Boards –.................................. 23

6-11. Printed Wiring Board – DISPLAY Board – .................. 24

6-12. Schematic Diagram – DISPLAY Board – ..................... 25

6-13. Printed Wiring Board – POWER Board – ..................... 26

6-14. Schematic Diagram – POWER Board –........................ 27

6-15. IC Pin Function Description ........................................... 31

7. EXPLODED VIEWS

7-1. Cabinet Section ............................................................... 33

7-2. Front Panel Section-1...................................................... 34

7-3. Front Panel Section-2...................................................... 35

7-4. CD Cabinet Section......................................................... 36

8. ELECTRICAL PARTS LIST ............................... 37

2

HCD-EP50

r

Ver 1.1

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.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow­ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.

LEAKAGE TEST

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.

3. Measuring the voltage drop across a resistor by means of a

VOM or battery-operated AC voltmeter. The “limit” indica­tion is 0.75 V, so analog meters must have an accurate low­voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex­amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V A C range are suit­able. (See Fig. A)

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.

The following caution label is located inside the unit.

To Exposed Metal
Parts on Set

1.5 k

0.15 µF

Fig. A. Using an AC voltmeter to check AC leakage.

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.

Ω

Earth Ground

AC
voltmete
(0.75 V)

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQ UE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM­POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

3

HCD-EP50

Ver 1.1

SECTION 1

SERVICING NOTES

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
pick-up block. Therefore, when checking the laser diode emis­sion, observe from more than 30 cm away from the objectiv e lens.

LASER DIODE AND FOCUS SEARCH OPERATION
CHECK

1. Press the I/1 button to the power ON with no disc inserted
and press the [CD] button.

2. Open the lid for CD.

3. Turn on SW300 as following figure.

4. Confirm the laser diode emission while observing the object­ing lens. When there is no emission, Auto Power Control cir­cuit or Optical Pick-up is broken.
Objective lens moves up and down five times for the focus
search.

• MODEL IDENTIFICATION
– Bottom View –

PA RT N o.

MODEL PART No.

AEP and UK models 4-235-177-0
US and Canadian models 4-235-179-0
Singapore and Hong Kong models 4-235-180-0
Mexican model 4-235-182-0
Argentina model 4-235-183-0
Chinese model 4-238-634-0

[]

[]

[]

[]

[]

[]

SW300

4

LOCATION OF CONTROLS
– Front Panel –

1 2 3456 7

wg

wf
wd

ws
wa
w;
ql
qk

SECTION 2

GENERAL

HCD-EP50

This section is extracted from
instruction manual.

8
9

q;
qa
qs
qd
qf
qg

qh

qj

Cassette compartment qj (13)
CD 4 (8, 9, 14)
DISPLAY wf (9, 11)
Display Window 5 (8, 9, 10)
ENTER ql (7, 9, 10, 12)
ISS 0 (14)
MEGA BASS 8 (16)
MONO STEREO 0 (11)
MUSIC MENU 9 (16)
PHONES jack wa
PLAY MODE w; (8, 9)
PRESET +/— qk (10, 11, 12)

RDS (European model only)/DIR

w; (12, 13, 14, 15)
Remote sensor wg
TAPE 3 (13)
TIMER indicator 2 (15, 18)
TUNER 6 (10, 11, 14)
TUNER MEM ql (10)
TUNING + qf (10, 11, 12, 15)
TUNING — qg (10, 11, 12, 15)
VOLUME control qd

BUTTON DESCRIPTIONS

@/1 (power) 1 (7, 11, 15, 18)

CD

. m (go back) qg (8, 9)
M > (go forward) qf (8, 9)
nN (play) qa (8, 9)
X (pause) wd (8)
Z PUSH OPEN/CLOSE 7 (8)
x (stop) qs (8, 9)

TAPE

M > (fast forward) qf (13)
X (pause) wd (13)
nN (play) qa (13, 14, 15)
z (recording) ws (14, 15)
. m (rewind) qg (13)
Z PUSH OPEN/CLOSE qh (13 )
x (stop) qs (13, 14)

5

HCD-EP50

Remote Control

CD 3 (8, 9, 14)
CLOCK/TIMER qg (7, 15, 17)
DISPLAY qh (9, 11)
MEGA BASS 2 (16)
MUSIC MENU wa (16)
PLAY MODE/RDS (European

model only)/DIR qj (8, 9, 12,
13, 14, 15)

PRESET +/— qk (10, 11)
REPEAT 7 (8)
SLEEP qd (17)
TAPE w; (13)
TIMER ON/OFF qf (15, 18)
TUNER/BAND 5 (10, 11, 14)
TUNER MEM/ENTER 6 (7, 9,

10, 12, 15, 17, 18)

TUNING/CLOCK/TIMER +/—

ql (7, 10, 11, 12, 15, 17, 18)

VOLUME +/— 4

1234

wa
w;
ql
qk
qj
qh
qg
qf
qd

BUTTON DESCRIPTIONS

M (fast forward) > (go

forward) 0 (8, 9, 13)

. (go back) m (rewind) qa

(8, 9, 13)

X (pause) qs (8, 13)
nN (play) 8 (8, 9, 13, 14, 15)
`/1 (power) 1 (7, 11, 15, 18)
x (stop) 9 (8, 9, 13, 14)

5
6
7
8

9
q;
qa
qs

Setting the time

1

Turn on the system.

2

Press CLOCK/TIMER on the remote.

When you set the clock for the first time, go
to step 5.

3

Press CLOCK/TIMER on the remote
repeatedly until SET CLK appears in
the display.

4

Press TUNER MEM/ENTER on the
remote.

5

Press TUNING/CLOCK/TIMER + or — on
the remote repeatedly to set the hour.

6

Press TUNER MEM/ENTER on the
remote.

7

Press TUNING/CLOCK/TIMER + or — on
the remote repeatedly to set the minute.

8

Press TUNER MEM/ENTER on the
remote.

To reset the system clock

Start over from step 1.

Note

The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.

6

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

SET

3-2. FRONT PANEL SECTION

(Page 8)

HCD-EP50

SECTION 3

DISASSEMBLY

3-3. MAIN BOARD

(Page 8)

3-4. CD CABINET SECTION

(Page 9)

3-5. CD MECHANISM DECK

(CS-21SC-1280)
(Page 9)

3-6. TAPE MECHANISM DECK

(CRL3439)
(Page 10)

3-7. CASSETTE LID

(Page 10)

7

HCD-EP50

)

r

Note: Follow the disassembly procedure in the numerical order given.

3-2. FRONT PANEL SECTION

4

claw

3

two screws

×

5)

(+K3

6

connector
(CN3)

1

two screws
(BTP2.6

×

10)

2

two screws
(BVTP3

×

10

3-3. MAIN BOARD

7

screw
(+BTP2.6

5

9

front panel section

8

×

8)

8

connector
(SW300)

3

1

connector
(CN9)

7

two screws

×

5)

(+K3

3

connector
(CN601)

1

connector
(CN4)

9

MAIN board

two screws

×

5)

(+K3

2

connecto
(CN11)

3

connector
(CN7)

4

connector
(CN201)

5

connector
(CN5)

6

connector

6

connector
(CN14)

(CN15)

8

3-4. CD CABINET SECTION

)

2

CD cabinet section

1

two screws
(BTP2.6

HCD-EP50

×

8

3-5. CD MECHANISM DECK (CS-21SC-1280)

6

two spring clamps

7

vibration proof rubber
(pink)

4

four fiber washers

3

four pulley screws

7

vibration proof rubber
(ORG)

5

8

CD mechanism deck (CS-21SC-1280)

6

two spring clamps

7

vibration proof rubber
(ORG)

7

vibration proof rubber
(pink)

1

two screws
(BVTP3 × 10)

2

plastic cover

9

HCD-EP50

)

3-6. TAPE MECHANISM DECK (CRL3439)

2

tape mechanism deck (CRL3439)

1

two screws
(BVTP3

×

10)

1

two screws
(BVTP3

×

10

3-7. CASSETTE LID

1

Open the cassette lid.

3

cassette lid

2

claw

2

claw

10

SECTION 4

)

MECHANICAL ADJUSTMENTS

HCD-EP50

SECTION 5

ELECTRICAL ADJUSTMENTS

PRECAUTION

1. Clean the following parts with a denatured-alcohol-moistened
swab :

record/playback head pinch roller
erase head rubber belts
capstan idlers

2. Demagnetize the record/playback head with a head demagne­tizer. (Do not bring the head magnetizer close to the erase head.)

3. Do not use a magnetized screwdriver for the adjustments.

4. After the adjustments, 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

Mode Torque Meter Meter Reading

FWD CQ-102C (30 – 70 g•cm)

FWD
Back Tension

FF CQ-201B (more than 60 g•cm)

REW CQ-201B (more than 60 g•cm)

CQ-102C (1.5 – 5.5 g•cm)

• Tape T ension Measurement

Mode Tension Meter Meter Reading

FWD CQ-403A

2.95 – 6.86 mN•m

(0.42 – 0.97 oz•inch)

0.15 – 5.39 mN•m

(0.021 – 0.076 oz•inch)

more than 5.89 mN•m

(more than 0.83 oz•inch)

more than 5.89 mN•m

(more than 0.83 oz•inch)

more than 100 g

(more than 3.53 oz)

PRECAUTION

1. Setting
MEGA BASS switch : OFF

TAPE DECK SECTION 0 dB=0.775 V

Test tape

Type Signal Used for

WS-48B 3 kHz, 0 dB Tape Speed Adjustment

P-4-A100 10 kHz, –10 dB Head Azimuth Adjustment

Tape Speed Adjustment

Setting:

Function: TAPE

test tape
WS-48B
(3 kHz, 0 dB)

set

Procedure:

1. Playback WS-48B (tape center) in the FWD state.

2. Adjsut the volume in CAPSTAN/REEL motor so that the fre­quency counter reading becomes 3,000 Hz.

Specified Value: 2,970 to 3,030 Hz

3. Confirm that the frequency at the beginning and that at the
end of tape winding are between 2,955 to 3,045 Hz.

frequency counter

47 kΩ

+
–

MAIN board
SPEAKER terminal (CN17

Adjustment Location:

CAPSTAN/REEL
motor

Tape Speed
Adjustment

11

HCD-EP50

Record/Playback Head Azimuth Adjustment

Procedure:

1. Mode: Playback (FWD)

test tape
P-4-A100
(10 kHz, –10 dB)

47 kΩ

set

MAIN board
SPEAKER terminal (CN17)

level meter

+

–

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

Adjustment Location:Record/Playback Head.

Note: Refer to “3-7. CASSETTE LID” (see page 10)

3. Mode: Playback (FWD)

test tape
P-4-A100
(10 kHz, –10 dB)

L-CH

set

R-CH

in phase

47 kΩ

47 kΩ

MAIN board
SPEAKER terminal (CN17)

screen pattern

45 °

90 °

good wrong

oscilloscope

V

+

–

135 ° 180 °

H

+

–

4. Repeat step 1 to 3 in playback (REV) mode.

5. After the adjustments, apply suitable locking compound to the
parts adjusted.

12

HCD-EP50

)

)

Ver 1.1

TUNER SECTION 0 dB=1 µV

[AM]

Setting:

Function : TUNER
Band switch: AM

AM RF signal

generator

30% amplitude
modulation by
400 Hz signal
Output level: as low as possible

[FM]

Setting:

Function : TUNER
Band switch: FM

FM RF signal

generator

22.5 kHz frequency
deviation by 400 Hz
signal
Output level: as low as possible

Put the lead-wire
antenna close to
the set.

0.01 µF

MAIN board
TP (FM VT)
TP (AM VT)

set

MAIN board
FM ANT

set

digital voltmeter

100 kΩ

level meter

32 Ω

+

–

MAIN board
SPEAKER terminal (CN17

level meter

32 Ω

+

–

MAIN board
SPEAKER terminal (CN17

no mark: EXCEPT AEP, UK, Chinese models
< > : AEP, UK, Chinese models

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter

T1 450 kHz

AM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display Reading on Digital Voltmeter

T8

Confirmation

Adjust for a maximum reading on level meter

TC1 1,404 kHz

FM FREQUENCY COVERAGE ADJUSTMENT

Adjustment Part Frequency Display Reading on Digital Voltmeter

L901

<Confirmation>

Confirmation 108 MHz 6.8 ± 0.5 V <7.3 to 8.5 V>

Adjust for a maximum reading on level meter

L902 90.1 MHz

TC901 106.1 MHz

530 kHz

<531 kHz>

1,710 kHz 7.8 ± 0.5 V

<1,602 kHz> <7.1 ± 0.5 V>

AM TRACKING ADJUSTMENT

T6 603 kHz

87.5 MHz 2.4 ± 0.1 V <1.4 to 1.6 V>

FM TRACKING ADJUSTMENT

1.3 ± 0.1 V

(EXCEPT AEP, UK, Chinese models)

Adjustment Location: MAIN board (See page 14)

• Repeat the procedures in each adjustment several times, and the
frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.

13

HCD-EP50

Adjustment Location and Connecting Points

– MAIN BOARD (Component Side) –

T1

AM IF Adjustment

AM Tracking Adjustment

Coverage Adjustment

TC1

{

T6

T8

AM Frequency

– MAIN BOARD (Conductor Side) –

U2

TP

(FM VT)

TP

(AM VT)

U1

L901 FM Frequency Coverage Adjustment

L902
TC901

FM Tracking Adjustment

}

14

6-1. BLOCK DIAGRAM – TUNER Section –

SECTION 6

DIAGRAMS

HCD-EP50

Ver 1.1

CN13

FM ANT

75Ω

COAXIAL

CN12

AM ANT

(EXCEPT AEP, UK, Chinese)

B. P. F.

BPF901

L902

FM RF

L902, TC901

FM TRACKING

(AEP, UK, Chinese)

1

T6

AM RF

TC1

T6, TC1

AM TRACKING

FM RF

1

TC901

U4

FM FRONT-END

5

FM RF AMP/MIX/OSC

IN

FM RF

AMP

OUT

FM RF

15

D905 D906

D5

IC901

7

8

FM MIX

FM OSC

FM

OSC

13

FM OSC
BUFFER

Q901

T8

AM OSC

T8

AM FREQUENCY

COVERAGE

MIX
OUT

CF2

10.7MHz

29

3

FM FREQUENCY

COVERAGE

AM-RF

-IN

AM-OSC

L901

FM OSC

L901

FM IF AMP

Q2

AM

RF AMP

AM

OSC

T901

FM IFT

AM

MIX

OSC.BUFF

FM-SD.ADJ

30

CF5

10.7MHz

AM-MIX

2

CF3

10.7MHz

T1

AM IF

FM/AM IF AMP,

AM RF AMP/MIX/OSC,

FM/AM DET, MPX

U1

FM-IN

1 23

CF4

450kHz

FM IF

AM-IF

427

FM

DET

(AEP, UK)

FM-DET

OUT MPX-IN

AGC

DETAM IF

FM DET

9

BUFFER

Q5

L. P. F.

T4

T5

FM DET

22

24

AM-DET OUT

4

4.332MHz

13

XI

ANTI-ALIASING

FILTER

AM/FM

IF BUFFER

X304

14

XO

OSC CLOCK

COMPARATOR

OUT L

DECODER

IF-BUFF

MUTE

13 1514

OUT R

RDS DECODER

IC305

PLL

1187.5Hz

PLL 57kHz

RDS/ARI

R-CH

Q3

AM/FM

L. P. F.

T2

STEREO/MONO

SWITCHING

Q17

21 19 17

20

FM/AM BAND

SELECT SWITCH

AMP­IN L

VCO-STOP

BIPHASE

DECODER

MUTING

DEFERENTIAL

AMP-

OUT L

TUNED6STEREO

7

DECODER

R-CH

RCLK

RDATMUX

TU-L

TU-R

RCLK

16

RDATA

2

A

B

(Page 18)

(Page 17)

• R-ch is omitted due to same as L-ch.

• SIGNAL PATH

: FM

: AM

FM/AM PLL

U2

14 13 18

FMIN

AMIN

1/2

AOUT

SWALLOW

COUNTER

L. P. F

PROGRAMMABLE

SHIFT REGISTER & LATCH

PD

AIN

PHASE

PHASE

DETECTOR/

DETECTOR/

CHARGE PUMP

CHARGE PUMP

12 BIT

DIVIDER

UNLOCK

DETECT

X2

7.2MHz

1

XIN

REFERENCE

DIVIDER

20

XOUT

11

IFIN

UNIVERSAL

COUNTER

IO1

61017 16

BO1

CCB

INTERFACE

ST/BEAT

FM ON/OFF

STEREO

STATION

DI

3

CL

4

CE

2

DO

5

DA IN

CLOCK

PLL CE

DA OUT

C

D

E

(Page 16)

(Page 18)

(Page 17)

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