Sony xr 7151 service manual

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SERVICE MANUAL U3 Model

Canadian Model

XR-7150

AEP Model

XH-7150/7151/7752

Photo: XR<7150

Model Name Using Similar Mechanism XR-7200

SPECIFICATIONS Tape Transport Mechanism Type MG-SSA-Sl

Audlo Power Specifications
POWER OUTPUT AND TOTAL HARMONIC DISTORTION Sensitivity at 50 dB quieting
13 watts per channel minimum continuous average power into _ . 13 '05 0W)
4 ohms, both channels driven, from 20 to 20,000 Hz with no more sle'ecw'w . . 75 B a' 400 kHz
lh o . . . Signal-to-nolse ratio 65 dB (stereo), 70 dB (mono)

an 1 /a total harmonic distortion. Harmon": dlsmmon 3 kHz

' s . . . 05% (stereo), 0.3% (mono)
Other SPGOIflcatlonS Separation 30 dB at 1 kHz
Frequency response 3045000 Hz
Power amplltler sectlon Capture ratio 25 dB
Outputs Speaker outputs (sure seal AM (MWILW)
_ connectors) Tuning range XR7150
Speaker Impedance 4-8 ohms US Canadian model:
Maximum power output 5' 0-1 62 kH
25w + 25w (at 4 ohms) Baud/7:352 Z
Measured at 14.4V AEP model:

Cassette player section X23;1_511'602 k Hz
Tape track 4-track 2channe| stereo LW 153_231 kHz
Frequency response Clo-18.000 Hz MW: 531_1 602 kHz
SlgnalAto-nolse ratio (It-weighted) Antenna terminal External antenna connector

0 tt Intermediate frequency

wife 9 Dolby B Dolby c Dolby off 450 kHz

_ - 2 _
TYPE II, IV 66 dB 76 dB 53 dB contanEd on page
TYPE I 63 dB 73 dB 55 dB Dolby noise reduction manufactured under license from

Dolby Laboratories Licensing Corporation
"DOLBY" and the doubleD symbol DC are trademarks of

Tuner section Dolby Laboratories LICEnsing Corporation.
FM
Tuning range US, Canadian model:

87.9-107.9 MHz

5. FM/AM CASSETTE BAR STEREI]

A ' l E
Inrtteernmrgjtggnflri;enoyxtemal antenna connector XR-II5U/7I52

FM/MW/LW CASSETTE CAR srrxilggg
S O N Y;

Wow and Ilutter 0.1% (WRMS)

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XR-7150/7151/71 52

Sensitivity XR-7150/7152: 35uV

XR-71511MW 35uV
LW 70uV

General

Output lead Line output lead
Remote control output lead
Amplifier remote control lead
Power antenna relay control
lead

Input lead Line input lead

Tone controls
Loudness

Power requirements

Section Title Page
Specifications ....................... l
XR-7150 Model Identification ............ 2
1. GEN ERAL
Location and Function of Controls ..... 3
Installation ..................... 5
Connections .................... 5
Tape Playback ................... 7
Automatic Tuning ................ 7
Manual Tuning ................... 8
Memory Preset Tuning .............. 8
Maintenance .................... 8
2. DISASSEMBLY .................. 9
3. ADJUSTMENTS
3-1. Mechanical Adjustment ............. l 1
3-2 Electrical Adjustments .............. l 1

Auxiliary line input lead
Equalizer control input lead
Remote control input lead
Bass :10 dB at 100 HZ
Treble :10 dB at 10 kHZ

+ 10 dB at 100 Hz

+ 6 dB at 10 kHz

12 V DC car battery (negative
ground)

Dimensions (without bracket)
Approx. 178 x 50 x165 mm

(wlhld)

0']: x 2 x 6% inches)
not Incl. projecting parts and
controls

Mounting dimensions (with bracket)

Approx. 182 x 53 X145 mm
(win/d)
(7'1. x 218 x 51.
inches)

not Incl. projecting pans and

controls

Weight Approx. 1.9 kg (4 lb 3 02)

Accessories supplied

Mounting hardware (1 set)

TABLE OF CONTENTS

XR-7150 MODEL IDENTIFICATION
- Specification Label --

§o§m_

FM/AM CASSETTE CAR STEREO

FREQUENCY RANGE:

MODEL N0. XR-7150

Section Title

4. DIAGRAMS

lC30l (MPD75108G-642) Description. i . t
[C Block Diagrams ................

4-1. XR-7150/7152 Tuner Section
Schematic Diagram ................
4-2. XR-7151 Tuner Section Schematic
Diagram .......................
4-3. Main Section Printed Wiring Boards .....
4-4, Main Section Schematic Diagram .......

5. EXPLODED VIEWS ...............
6. ELECTRICAL PARTS LIST .........

Troubleshooting Guide

US, Canadian model: FM 87.9 - 107.9 MHz
AM 530 -1,620 kHz
AEP model: FM 87.5 - 108 MHz
AM 531 -- 1,602 kHz

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