Technics SUV 10 X Schematics

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I VIDEO SECTION I GENERAL
(TV/AUX 1, VIDEO/AUX 2. TAPE 2/VCR)

Power consumptlon 670W
Output voltage (It 1V input 75 ohms unbalanced) 110.1 Vp-p POW supply AC 50 Hz/60 Hz, 110V/127V/220V/240V
Mnxlmum Input voltage ' 1.5 vap Dlmonsions (WXHXD) 430 X 147 X 392 mm
Input/output Impedance 75 ohms unbalanced (16»15/16" X 5-25/32" X 15-13/32")
Wolth ' _ ' 13.5 kg
' - (29.8 lb.)
Not-s: ]
0 Total harmonic distortion is measured by the digital spectrum 0 Specifications are subject to change without notice.

analyzer (HP. 3045 system). Weight and dimensions shown are approximate.

I CONTENTS Pu.
SAFETY PRECAUTION ............. . . . . . . TERMINAL GUIDE OF TRANSISTORS,

LOCATION OF CONTROL. . . . . .......... . . . DIODES AND ICS .......... . . . . . 12
VOICE AND VIDEO SIGNAL TERMINAL. . . . HOW TO REPLACE IC'S ISmnlloutllnc WP!) . . . . . . . . . . . . . 13
OPERATION . . . ....... .. . . t . ........ WIRING CONNECTION DIAGRAM . . . . . . . . . . . "~18
RECORDING..........'..................... PRINTEDCIRCUITBOARDS....... .. 17~22
PROTECTION CIRCUITHY . . . . . . MEASUREMENT AND ADJUSTMENTS . . . . . . . , . . 23

BEFOREREPAIRANDADJUSTMENT...... 7 ELOCKDIAGRAM..................

. .. 24,25

DISASSEMBLY INSTRUCTIONS . ...... . . . . . . . . 7~1o SCHEMATlc DIAGRAM . . . . . . . . . . . . , . 25~33
FUNCTION OF TERMINAL (loam: MN1421STAl ...... 10,11 CIRCUITS To BE CHANGED Ann THE AREA; , , , , 34
FUNCTION OF TERMINAL (Iczsi: #PD7506C043I. . . . . 11,12 REPLACEMENT PARTS LIST. . . . . . . . . . . . 35,38

EXPLODEDVIEW.......................... 37,38

I SAFETY PRECAUTION lthes "safety precaution " is applied only in U.S.A.)

Before servicing, unplug the power cord to prevent an electric shock.

. When replacing parts, use only manufacturer's recommended components for safety.

Check the condition of the power cord. Replace if wear or damage is evident.

. After seivicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.

. Before returning the serviced equipment to the customer. be sure to make the following insulation resistance test to
prevent the customer from being exposed to a shock hazard.

map...

0 INSULATION RESISTANCE TEST

1. Unplug the power cord and short the two prongs of the plug With a iumper wire.

2. Turn on the power switch, , _

3. Measure the resistance value with ohmmeter between the Jumpered AC plug and each exposed metal cabinet part, such as
screwheads antenna, control shafts, handle brackets, etc. Equipment with antenna terminals should read between 3M9
and 5.2M!) to all exposed parts, (Fig. A) Equipment Without antenna terminals should read approximately infinity to
all exposed parts. (Fig. Bl

Note: Some exposed parts may be isolated from the chassis by design. These will read infinity.

Antenna
terminal I
. l
i _
Exposed 3 Exposed
metal , _ metal
part _ . part ;
. Ohmmeter Ohmmeter
lFigaA) , ~ , '(Fig.B)
Flesstance = 3MQ-5.2 MI I , 7 Resistance = Approx 00

4. If the measurement is outside the specified limits, there is a possibility of a shock hazard. The equipment should be
I'EDaiI'ed and rechecked before it is returned to the customert

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