Onkyo PCSD 1 Service Manual

Page 1

TU-D1

Ref. NOI 3424
ONKYO® SERVICE MANUAL
P C S - D1 (
CASSETTE /CD PLAYER
TU-D1
Black and Silver models
UDN. UDCI UD 120V AC, 60Hz
UP 230v Ac, 50m
uw 120/ 220v AC, 50/60Hz
UQA 240V AC, 50H;
23:5:g;§§§$§%%gg¥;?gg~érywaillg(Z! ON THE Sampling frequency: 176.4kHz (4 times oversampling)
SCHEMATICDIAGRAMAND IN THE PARTS LISTARECRITI- Number °f mm; 2 (m")
CAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE We 5.9m? _ 2° H2 20 kHz
THESE COMPONENTS WITH ONKYO PARTS WHOSE PARTS Tm hémom dmmo: 0 03% (3 1 kHz)
NUMBERS APPEAR AS SHOWN IN THIS MANUAL Pym ragga: , 7MB
MAKE LEAKAGE-CURRENT 0R RESISTANCE MEASURE- 53] ° 5? 90013
MENTS TO DETERMINE THAT EXPOSED PARTS ARE AC- Charm] pajama": 7MB (2 1 kHz) . I
CEPTABLY INSULATED FROM THE SUPPLY CIRCUIT WW and Hum _ Bel 65 of measuablty
BEFORE RETURNING TI lE APPLIANCE To THE CUS~ Onset my" seam
TOMER. Track System: 4-n'acks, 2.Charmeis
Erasing System: AC erase
SPECIFICATIONS Tape Speed: 4.8 cm/sec. (177/8 i.p,s.)
CD Player Section Wow and Flutter: 0.07% (WRMS) 0.15%W PEAK
. , Frequency Response: 20 ~ 15,000Hz (Normal)
Signal readour system: Opuonal nonicomacl (30 ~ [4,000111 fldB)
Reading rolatmn: About 5007 200 r,p.rn. 20 ~ 16,000Hz (High)
Linear velocily (163??? :35? low (30 ~ 15,000Hz fldB)
. ' ' ' 20 ~ 17.000Hz (Metal)
Error conectron system. Cross Interleave Reed-Solomon code (30 ~ 160001-[2 fldB)
D/A converter: 1 BIT D/A Convener

S/N Ratio: Dolby NR off: SSdB
(metal position tape)
ONKYO A noise reduction of 10dB above SkHz
and SdB at (Hz is possible with
Dolby B NR.
Auulfl cu P 0 "["Is A norse reduction of 20dB at SkHz is
possible with Dolby C NR.

Page 2

TU-D1

AUX IN: 2
Input sensitivity: 280/500mV
Input impedance: 50 kohms

[nput Jacks;

Outputs: Monitor Jack: 1
Optimum load impedance:
8-2000th
Motors: DC servo motor X 1: DC motorx 1
Heads: REC/PB: l
ERASE: 1

Power Supply Rating: (AC Adaptor)
European models. AC 230V, SOHZ
3 pin Attachment plug
U.S,A. and Canadian models:
AC 120V. 60112
3 pin Attachment plug,

SERVICE GUIDE

RESET AND POWER CIRCUIT

By connecting AC Adapter. Q9 l7OUT is to set at 5V resetting Main

Microcomputer Q804 and Key Microcomputer 0806 by Q918.

Q804 44 is to set at H" and then reset Servo Microcomputer Q801

by Q919 8 that ts to set for Q9192H".

Next, when tnput through KEY of the Operation Buttons,

Q804"4458 is to be set at "1'1". turning ON Q908. Q909. (2910,

Q9ll. and 0912 respectively, then. supply +B into the mechanism

and the circuit. The power supply of the Transmitter Section detects

wired connection or not for the system by means of Microcomputer

Q804 setting Q8045t') at H, in case of tin~wired while 0701 2E

turns in "H" and outputs 5V toward Q7013V().

While charging battery, its voltage increases up to around 14.6V,

however, when completed charging. it decreases down to 13.6 Y or

so.

BATTERY CHARGING CIRCUIT

The changing current is to be applied to the battery by way of R903

and 0903 from AC Adapter. While charging. the current is detected

byR909 and the base voltageot R905 is controlled (Charge Indicator

is turned ON by the live Q905 while charging). At the end of

charging due to the R909 not charged. base voltage of Q905

increases to turn OFF Q905 and then Charge Indicator.

OVERDISCHARGE PREVENTION OF BATTERY

Microcomputer Q804"63 detects the poor capacity of the battery

when its voltage falls down to approx. 10.6V turning Warning Light

ON on the other hand. In case of lowere voltage. Microcomputer

Q80444 and "58 turn in L" to start Q912 and Q919 to prevent +B

front passing.

Although you take out AC Adapter with battery connection under

POWER OFF, the back-up current (abt. 8 mA) to Microcomputer is

still alive, and the battery is to be exhaussted (completely in a week

or so).

CABINET DISASSEMBLY

1. Turn over the set.

2. Loosen out setscrews ofthe battery cover and then take the cover
off.

3. Loosen out the 6 (siz) screws fixing Cabinet (TOP) and Cabinet
(BASE).

4. Turn down the set.

5. Set up ANT and take off the cabinet (TOP).

UK. and Australian models:
AC 240V. 50Hz
3 pin Attachment plug
Worldwide models: AC 120V ~ 220V variable,
SO/éOHz 3 pin Attachment plug

Battery Pack (BTADI )...Option
Used Battery Small sealed lead battery
Normal voltage 6V DC Requires 2
Nominal capacny 1800 mA battery packs
Dimensions: 295 (W) X 80 (H) x 256 (D) mm
(11-5/8 x 3~ 1/8 X 10» 1/8)
Weight: 2.6kg. (5.71M)
Design and specifications are subject to change without priornotice.

BT-Dl (BATTERY)

1. CHARGING

Put two hatteries into the Control Center ('l'UeD 1) to connect to AC

Adapter and then plug in for power supply to start charging (the

Charge Indicator of Control Center will be tumed ON), When

completed charging. the said Light is to goes out. (Charging takes

about four hours. Play back for two hours. while recording is not
available)

NOTE: Charging for SU-Xl requires series arrangement oftwo
batteries and therefore. if not discharge equally, (to be
normal generally. when used for TU-Dl. and so. when
just one of the two batteries was used separately) the
used one may not be charged. In such a case. charge one
by one at the rated voltage of supply DC 7 V 800 mA.

After stored for a long time (12 months or more) or overcharged. it

will be difficult to charge. This is because otthc sulfate film caused

on the electrode. in this case, charge for 12 to 24 hours and more to
remove the sulfate film in order to be as new as a virgin battery

2. DISPLAY

At shop, for first-in-first-out method, thedisplay conststs ol IOrdlgIl

Serial NO.. the four inferior of which are to show the Date of

Manufacture:

l i 1 i 1 l 1 1
1 1 17
Month Day

therefore. there can be some NOs With the same inferior four digits.
Number of products and canons (containing two products) is also
displayed on the color label to be stuck to a larger package every Six
months.

November 91 to April 92 . Color label not stuck
May 92 to October 92 : Red label stuck
November 92 to April 93 : Yellow label to be stuck
May 93 to October 93 : Blue lable to be stuck
November 93 to April 94 : Orange label to be stuck
May 94 to October 94 : Green label to be stuck

3. LIFE OF CYCLE

Varies based on the discharge ondition,

The more discharged. the less in cycle numbers.

100% discharge - 200 times of charge/discharge
50% discharge 7 400 times of charge/discharge
30% discharge - 1200 times of charge/discharge