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EXR-14
XR-2600/ 2900
SERVICE MANUAL
U8 Model
EXR- 14
U8 Model
Canadian Model
SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION
10 watts per channel minimum continuous average power into 4
ohms, both channels driven, from 30 to 20,000 Hz with no more
than 1.0% total harmonic distortion.
Tuner section
Tuntng range
Antenna terminal
Usable sensluvity
Selectivity
SignaHo-nolse ratio
Harmonic distortion SI 1 kHz
Separation
Frequency response
Capture ratio
AM
Tuning range
Antenna termrnal
Sensltlvlly
Cassette player section
Tape track
Frequency response
$ignal-lo~notse ram
Wow and Ilutler
87.5 - 1073 MHZ
External antenna connector/Power antenna relay control Iead
13 dBI (75 ohms)
more than 70 63 91400 kHz
65 as (stereo). es as (monaural)
0.9% (stereo). 0.5% (monaural)
35 dB at 1 kHz
so - 15,000 Hz (:3 (13)
2.0 as
530 - 1.710 kHz
External antenna connector/Power antenna relay control lead
31qu
4-week 2-onannei stereo
XH-2600/2900
v22wx
Photo: XFl-2900 model
Model EXR-14, XR-2600 XR-2900
Model Name Using Similar Mechanism EXR-12, XFl-6077 New
Tape Transport Mechanism Type MG-aeSHJ-sz MG-36ASH -32
Power amplifier section
Outputs
Speaker impedance
Maximum power output
General
Tone controls
Loudness
Power requirements
Mounting dimensions
Mass
Accessones supplied
Speaker outputs (sure seal connectors)
32 - 8 ohms
22 W x 2 (at 4 ohms)
e W X 4 (314 ohms)
Bass :8 dB at 100 Hz
Treble :6 dB at 10 kHz
«.10 dBal 100 Hz
12 v DC car battery (negaIlVe ground)
Approx, 173 x so , r34 mm (win/o)
(7w x 2 , sale in)
Approx, L2 kg 12 ID. 10 oz.)
Mounting hardware (1 set)
Power connecting cord (1)
Design and SDBCIIICEHOHS subject to change Without notice
40 ~ 15.000 Hz
Cassette type Dolby B' Dolby 0"
TYPE 1|. IV as d3 55 GB
TYPE l 63 dB 55 dB
' XR-ZQOO only Corporation,
may.
. Dolby nouse reduction manulaclured under license
lrom Dolby Laboratories Licensmg Corporation
DOLBY and the double-D symbol DD are
trademarks oi Dolby Laboratories Licensmg
FM/AM CASSETTE CAR STEREO
SONE
Features
Tuner section
- SSlR (Sony Super Interference Rejection) PLL
Synthesizer tuner.
-The quartz-locked digital synthesizer system
enables easy and accurate tuning.
0 Up to 12, FM and 6 AM stations can be preset.
~Automatic memory function allows you to store
a total of 18 stations in the memory quickly
and easily.
. Dolby B NR system* reduces tape hiss noises
during tape playback.
- AMS (Automatic Music Sensorl function for
automatically locating the beginning 01 a track
during tape playback.
. xii-2900 only.
Cassette player section
The autOcreverse function changes the tape
direction automatically
Power amplifier section
~ Fader control for playback with a 4-speaker
system.
0 Maximum power output of 6 watts over 4
channels or 22 watts over 2 channels.
General
The quartz controlled digital clock.
SERVICING NOTE
Notes on chip component replacement
0 Never reuse a disconnected chip component.
0 Notice that the minus side of a tantalum capacitor
may be damaged by heat.
TABLE OF CONTENTS
Section Title Page
Specifications 1
Features ................ .
Servicing Note ....................................... . . . 2
1 . GENERAL
Location and Function of Controls --------------------- 3
Instauation............ ................. .......... ....... 4
Connections ............... ........... ................... 5
2, DISASSEMBLY ................... . . . ................ 6
3. ADJUSTMENTS
3-1. Mechanical Adjustment ..... . . . . . . . . . . . . . ........ 7
3-2. Electrical Adjustments .......... . . . . . . . .......... 7
4. DIAGRAMS
4-1. Block Diagram . - . . . . . . ...........
4-2. Semiconductor Lead Layouts ~ ~ ------ 14
43. Printed Wiring Boards
(EXR-l4/XR-2600 model) ...... . . ............. 15
44. Schematic Diagram
(EXR-14/XR-2600 model) ...... . 19
4-5. Schematic Diagram (XR»2900 model) - 23
4-6. Printed Wiring Boards (KR-2900 model) ~~~~~~~ 27
5. EXPLODED VIEWS
51. Chassis Assembly~ 1 ............................. 31
5-2. Chassis Assembly-2 . . . . . . . .................. . . . . 32
543. MD Assembly~1 .................. 33
54, MD ASSemblyQ . ............. . . . . . . ...... 34
6. ELECTRICAL PARTS LIST ~~~~~~~~~~~~~~~~~~~~~~ 35
Hardware List ...................... .41