Sony xr 7070 service manual

Page 2

XR-7070/7071/7072

AM (MW/LW)

Tuning range

Antenna terminal

XR-7070 (US/Canadian):
530 - 1710 kHz
XR-7070 (AEF'IE)I7072
European and other countries
531 - 1,602 kHZ
(at 9 kHz step)
North and South American
countries
530 - 1,620 kHz
(at 10 kHz step)
AM tuning interval 9 kHz/
10 kHz switchable
XR-7071:
MW 531 - 1,602 kHZ
LW 153 - 281 kHZ
exterminal antenna connector

General

0 utput lead

Tone controls

Power antenna relay control lead
Power amplifier control lead
Bass i 10 dB at 100 Hz

Treble i 10 dB at 10 kHz
Loudness +6 dB at 100 Hz
+6 dB at 10 kHz
Power requirements 12 V DC car battery
(negative ground)

Dimensions (without bracket)

Mounting dimensions

Weight
Accessories supplied

Approx. 178 X 50 X 167 mm
(w/h/d)

(7lu X 2 X 6]. inches)

not incl. projecting parts and
controls

Approx. 182 X 53 X 145 mm
(w/h/d)

(7/. X 2]. X 5l4 inches)

not incl. projecting parts and
controls

Approx. 2 kg (4 lb. 7 oz.)
Mounting hardware (1 set)

Design and specifications subject to change without notice.

TABLE OF CONTENTS

Intermediate frequency 450 kHz
Sensitivity XRA7070/7072:
35 11 V
XR-7071:
MW 35 11V
LW 70 11V
Section Title Page
Specificafions .................................. 1
1. GENERAL
Installation/installationMontage ------------ 3
Connections/Connexions/Aansluitingen ------ 5
Location and Function of Controls ~~~~~~~~~~~ 7
Tape Playback ........................... 9
Automatic Tuning ---------------
Manual Tuning -----
Memory Preset Tuning - 11
Disc Playing ------- 12
Maintenance ..................... 12
2. DISASSEMBLY ......................... 13
3. ADJUSTMENTS
3-]. Mechanical Adjustments --------
3»Z, Electrical Adjustments
Deck Section - 15
Tuner Section ............................ 17
DIAGRAMS
4-1. [€301 u PD75116GF-625-3BE
(Micro Computer) ........................ 20

Section [11% P_ag§
4-2. [C Block Diagrams ----------------------- 23
4-3. Printed Wiring Boards

(Type A: XR-7070 (US) Main board

part numbec 1-634-042-11) ---------------- 25
4-41 Schematic Diagrams

(Type A: XR-7070 (US) Main board

part number. l-634>042-11) ---------------- 29
4-5. Printed Wiring Boards

(Type B: XII-7070 (Canadian/AEP/E)/7071

/7072 and XR-7070 (US) Main board

part number. 1-634-042-13) ---------------- 35
4-6. Schematic Diagram

(Type B: XII-7000 (Canadian/AEP/E)/7071

/7072 and XR-7070 (US) Main board

part number. 1-634-042- 13) ---------------- 39
5_ EXPLODED VIEWS .................... 44
6. ELECTRICAL PARTS LIST ~~~~~~~~~~~~ 50
Mounting Hardware ............................. 56