Manual

Troubleshooting Guide
Before requesting service for this unit, check the chart below for a possible cause of the problem you are experiencing. Some simple checks or
a minor adjustment on your part may eliminate the problem and restore proper operation.
If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, refer to the directory of
Authorized service centers (enclosed with this unit) to locate a convenient service center, or consult your Technics dealer for instructions.
(In U.S.A. consult MSC Authorized Servicenters for detailed instructions.)
Probable cause(s) Suggested remedy
• Refer to page 4.
sound
• Turn the power switch "on".
• Set it to the "on" position.
_°'_qualizatlon is not possible
,during recording
• Incorrect connection.
• The power switch is "off".
• The equalization switch of the equalizer is set to
the "off" position.
eThe recording mode selector of the equalizer is
set to the "straight" position.
• The input selector of the equalizer is set to the
"tape" position.
• Set it to the "EQ" position.
• Set it to the "source" position.
Technical Specifications
(|HF'78)
Frequency response
(center position) 5 Hz_t00 kHz, -3 dB
Maximum output
voltage 7 V (1 kHz, THD 0.01%)
Rated output voltage 1 V
Rated total harmonic
distortion 0.005% (20 Hz--20 kHz)
0.003% (1 kHz)
Input sensitivity 1 V
Signal-to-noise ratio (110 dB, IHF'A)
Maximum Input voltage 7 V (1 kHz)
Input impedance 33 kQ
Gain 0_+1 dB
Band level controls +12dB_-12dB
(7 continuously variable elements
per channel)
Center frequency 63 Hz, 160 Hz, 400 Hz,
1 kHz, 2.5 kHz, 6.3 kHz, 16 kHz
GENERAL
Power supply AC 120 V 60 Hz
Power consumption 7 W
Dimensions (430 × 75x 192.5 mm)
(WxHxD) (1615/18"x231/32"x71%2")
Weight 1.85 kg (4.1 Ib)
Maintenance
To clean, use a soft dry cloth.
If the surfaces are extremely dirty, use a soft cloth, dipped into a
soap and water or a weak detergent solution.
Wring the cloth well before wiping the unit.
Wipe once again with a soft dry cloth.
Never use alcohol, paint thinner, or benzine, nor a chemically
treated cloth to clean this unit.
Such chemicals may mar the finish of your unit.
Product Service
• Warning concerning removal of covers
The unit should be serviced by qualified technicians only. No
service information is provided for customers. Your product is
designed and manufactured to ensure a minimum of mainte-
nance. However, should your unit ever require service, a
nationwide system of factory servicenters and AUTHORIZED
INDEPENDENT SERVICENTERS is maintained to support your
product's warranty.
(In the U.S.A., call 1-800-447-4700 to locate the MSC Authorized
Servicenter nearest you.)
Panasonic Company
Division of Matsushita Electric
Corporation of America
One Panasonic Way Secaucus,
New Jersey 07094
Printed in Japan
Matsushita Electric
of Canada Limited
5770 Ambler Drive,
Mississauga,
Ontario L4W 2T3
Panasonic Hawaii Inc.
91-238 Kauhi St., Ewa Beach
P.O. Box 774
Honolulu Hawaii 96808-0774
Panasonic Sales Company, (_ (_
Division of Matsushita Electric
of Puerto Rico, Inc.
Ave. 65 De Infanteria, KM9.7
Victoria Industrial Park
Carolina, Puerto Rico 00630
SQXKS0205
F0188U0