Panasonic su c 1010 service manual

Page 1

AD9907167CZ

Service Manual

Stereo Control Amplifier

Specifications (DIN 45 500)

Input sensitivity/impedance:
PHONO MM;
TUNER, CD, DVD-60H, AUX,
TAPE 1. TAPE 2/MD;
Total harmonic distortion (VGCA ON)
(Vol. MAX, 20 Hz - 20 kHz):

2.5 mV/47 kg

200 mV/22 kSZ

PHONO MM; 0.01 %
TUNER, GD, DVD-60H, AUX,
TAPE 1, TAPE ZIMD; 0.01 %

SIN (VGCA ON):
PHONO MM;
TUNER, CD, DVD-60H, AUX,
TAPE 1, TAPE 2/MD;

75 dB (77 dB, lHF '66)

104 dB (102 dB, IHF '66)

112 dB (lHF A S=2 V rated output)
Frequency response (VGCA ON):

PHONO MM; FiIAA standard curve $0.8 dB

(30 Hz - 15 kHz)

TUNER, CD, DVD-SCH, AUX,

TAPE 1, TAPE 2/MD; 3 Hz - 100 kHz (+0 dB, -3 dB)

+0 dB, --O.3 dB (20 Hz - 20 kHz)

Phcno maximum input voltage (1 kHz, RMS):

MM; 85 mV (IHF '66)

Tone controls (VGCA OFF):
BASS; +10 dB, -10 dB (50 Hz)
TREBLE; +10 dB, ~10 dB (20 kHz)

SU-C1010

Colours
(K) .......... Black Type
(N) .......... Gold Type

Areas
(E) .......... Europe.
(EB). Great Britain.

(EG) ....... Germany.

Mutlng: >90 dB
Output voltage:
TAPE 1, TAPE 2 REC OUT; 200 mV
PRE OUT; 1 V
I GENERAL
Power supply:
(E) and (EG) areas; AC 50 Hz, 230 V
(EB) area; AC 50 Hz, 230 - 240 V
Power consumption: 12 W
STANDBY; 1 W
Charging with STANDBY; 6 W
Dimensions (w>< D): 430x91.5><300 mm
Weight: 3.8 kg
Notes:

1. Specifications are subject to change without notice.
Weight and dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum
analyzer.

3. For (EB) area: The specification values given have been
measured while using a 240 V-power supply.

A WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the general public,

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced prolessional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

Technics®

© 1999 Matsushita Electronic Industrial Co.,Ltd. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

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CONTENTS
Page
1 Before Repair -------------------------------------------------------------------------- 2
2 Protection Circuitry --
3 Accessories ----------
4 Caution for AC Mains Lead .........................................
5 Operations ----------------------------------------------------------------------

6 Operation Checks and Component Replacement Procedures

7 Schematic Diagram ...................
7.1. Schematic Diagram Notes
7.2. Schematic Diagram -------

8 Printed Circuit Board Diagram ..

1 Before Repair

1.Turn off the power supply. Using a 10 £2, 10 W resistor,
connect both ends of power supply capacitors ((3651) in
order to discharge the voltage.

2. Before turning the power supply on, after completion of
repair, slowly apply the primary voltage by using a power
supply voltage controller to make sure that the consumed

2 Protection Circuitry
The protection circuitry may have operated if either of the
followlng conditions is noticed:

- No sound is heard when the power is switched ON.

- Sound stops during a performance.

The functions of this clrcuitry is to prevent circuitry damage If,
for example. the positive and negative speaker connection
wires are shorted, or If speaker systems with an impedance
less than the indicated rated impedance of this unit are used.

3 Accessories

- AC mains lead
(EB) area : (RJA0053-2X) ....................... 1 pc.
(E) and (EG) area : (RJA0019-X) .......... 1 pc.

. Remote control transmitter
(RAK-SUA11WH) .........

9 Type Illustration of ICs, Transistors and Diodes-
10 Block Diagram-
11 Wiring Connection Diagram-
12 Measurement and Adjustment ----------------------------

12.1. Measurement instruments and Special tools
12.2. Output voltage Adjustment -------------------------------------------- 33
13 Terminal Function of ICs ---------------------------------
13.1, IC701 (M38503M2404F) : Micro Computer--
14 Replacement Parts List --------------------------------------------------------- 35
15 Cabinet Parts Location -'
18 Packaging ------------------

current at 50 Hz in NO SIGNAL mode should be shown
below with respect to supply voltage 230/240 V.

AC 230 V, 50 Hz AC 240 V, 50 Hz
20-34 mA 21-35 mA

Power supply voltage
Consumed current

If this occurs, follow the procedure outlined bellow:
1.Switch OFF the power.
2. Determine the cause of the problem and correct it.
3.8wltch ON the power once again.

Note:

When the protection circuitry functions, the unit will not
operate unless the power Is first switched OFF and ON
again.

- Stereo phono cable
(SJP2276) ........................................ 1 pc.

- Rechargeable battery
(P-06RM/8A13) ................................ 1 pc.