Akai HX-R40 User manual

AKAT Servite manuat
STEREO CASSETTE DECK
move. HX=-R4Q0

ABBREVIATIONS FOR SERVICE MANUAL
MODEL HX-R40
ABBREVIATION EXPLANATION
ADJ ADJustment
CAM M CAM Motor
Dolby NR Dolby Noise Reduction
EQ EQualizer
FF Fast Forward
FREQ FREQuency
FWD ForWarD
FWD AR ForWarD Anti Record
H High level
HD High Density
IND INDicator
IPLS Instant Program Location System
L Low level
OSC OSCillator
PB Play Back
Q REV Quick REVerse
REC RECord
REEL M REEL Motor
REEL M P/F REEL Motor Play/Forward
REG REGulator
REV REVerse
REV AR REVerse Anti Record
SW SWitch
VR Variable Resistor
VREG Voltage REGulator

STEREO CASSETTE DECK
wove. HX-R40
SECTION 1 SERVICE MANUAL .................... 3
SECTION 2 PARTS LIST .......................0... 17

SAFETY INSTRUCTIONS
SAFETY CHECK AFTER SERVICING
Confirm the specified insulation resistance between power cord plug prongs and externally exposed parts of the set is
greater than 10 Mohms, but for equipment with external antenna terminals (tuner, receiver, etc.) and is intended for
or [A], specified insulation resistance should be more than 2.2 Mohms (ground terminals, microphone jacks,
headphone jacks. line-in-out jacks etc.)
PRECAUTIONS DURING SERVICING
1. Parts identified by the A\ symbol parts are critical for safety.
Replace only with parts number specified.
2. In addition to safety, other parts and assemblies are specified for conformance with such regulations as those
applying to spurious radiation. These must also be replaced only with specified replacements.
Examples: RF converters, tuner units, antenna selector switches, RF cables, noise blocking capacitors, noise
blocking filters, etc.
3. Use specified internal wiring. Note especially:
1) Wires covered with PVC tubing
2) Double insulated wires
3) High voltage leads
4. Use specified insulating materials for hazardous live parts. Note especially:
1) Insulation Tape
2) PVC tubing
3) Spacers (Insulating Barriers)
4) Insulation sheets for transistors
5) Plastic screws for fixing microswitch (especially in turntable)
5. When replacing AC primary side components (transformers, power cords, noise blocking capacitors, etc.), wrap
ends of wires securely about the terminals before soldering.
— c>
Observe that wires do not contact heat producing parts (heatsinks, oxide metal film resistors, fusible resistors, etc.).
Check that replaced wires do not contact sharp edged or pointed parts.
Also check areas surrounding repaired locations.
Use care that foreign objects (screws, solder droplets, etc.) do not remain inside the set.
oD
VOLTAGE CONVERSION
Models for Canada, USA, Europe, UK and Australia are not equipped with this facility. Each machine is preset at the
factory
according
to
destination,
but
some
machine
can
be
set
to
110V,
120V,
220V,
or
240V
as
required.
If your machine’s voltage can be converted:
Before connecting the power cord, turn the VOLTAGE SELECTOR located on the rear panel with a screwdriver until
the correct voltage is indicated.
VOLTAGE
SELECTOR
CYCLE CONVERSION
Cycle conversion are not necessary since HX-R40 use a DC MOTOR.

IL
Il.
VI.
VIL.
VIIL
X.
SECTION 1
SERVICE MANUAL
TABLE OF CONTENTS
SPECIFICATIONS. 5.00002. 65 gee Stew bw HR ee ee eee 4
DISMANTLING OF UNIT ................ 0. eee eee ees 5
CONTROLS | 2 esi scc cose e cok we ted Bhs Bin eines EERE a EARS 6
PRINCIPAL PARTS LOCATION ........... 0.0.0. ee eee eee ene 7
MECHANISM EXPLANATION OF EACH MODE.................. 8
5-1. DIRECT OPERATIONS RESULTING BY MOVEMENTS OF
THE MAIN GEAR WHEEL ..... 8
FIXING PROCEDURES FOR CAM WHEEL AND
ROTARY ENCODE PCB..... 11
MECHANICAL ADJUSTMENT .......... 0.000000. 02: eae eee 12
7-1. PINCH ROLLER PRESSURE MEASUREMENT ............... 12
7-2. WINDING TORQUE MEASUREMENT IN EACH MODE ........ 12
7-3. TAPE SPEED ADJUSTMENT .......... 2.0.0.0... 0000s eee 12
HEAD ADJUSTMENT .. 2.2.2.0... . cece cece eee ees 13
8-1. TAPE GUIDE HEIGHT ADJUSTMENT..................... 13
8-2. HEAD HEIGHT ADJUSTMENT ......................0... 13
8-3. REC/PB HEAD AZIMUTH ALIGNMENT ADJUSTMENT ........ 13
ELECTRICAL ADJUSTMENT ..........0.. 0.000.000 ee eee eee ee 14
9-1. QUICK REVERSE SENSITIVITY ADJUSTMENT.............. 14
9-2. PRE-AMP ADJUSTMENT............... 0.0.0... .0 000000. 1S
PC BOARD TITLES AND IDENTIFICATION NUMBERS............ 16
For basic adjustments, measuring methods, and operating principles, refer to GENERAL
TECHNICAL MANUAL.
SERVICE MANUAL

SPECIFICATIONS
TRACK SYSTEM
4 track 2 channel stereo
TAPE Phillips type cassette
HEADS HD head for recording and playback x 1
Erase head x 1
MOTORS Electronically speed controlled DC motor for capstan drive x 1
DC motor for reel drive x |
DC motor for cam drive x 1
WOW & FLUTTER
FOR J-MODEL
0.05% WRMS (JIS), 0.12% (DIN)
+0.07% W. Peak (EIAJ), 0.05% WRMS
FREQUENCY RESPONSE
NORMAL
CrO,
METAL
20 Hz to 17,000 Hz + 3 dB
20 Hz to 18,000 Hz + 3 dB
20 Hz to 19,000 Hz + 3 dB
S/N (METAL)
FOR J-MODEL
DOLBY B TYPE NR SWITCH ON
DOLBY C TYPE NR SWITCH ON
59 dB
58 dB (EIAJ)
Improves up to 5 dB at 1 kHz, 10 dB above 5 kHz
Improves up to 15 dB at 500 Hz, 20 dB at 1 kHz to 10 kHz
HARMONIC DISTORTION (METAL)
FOR J-MODEL
Less than 0.8%
0.8% (EIAJ)
INPUT SENSITIVITY/IMPEDANCE
MIC
LINE
OUTPUT SENSITIVITY/IMPEDANCE
LINE
HEADPHONES
0.25 mV/5 kohms (Required microphone impedance 600 ohms)
70 mV/47 kohms
388 mV/2 kohms
0.3 mW (8 ohms)/82 ohms
POWER REQUIREMENTS
120V, 60 Hz for USA & Canada
220V, 50 Hz for Europe except UK
240V, 50 Hz for UK & Australia
110V/120V/220V/240V, 50 Hz/60 Hz
convertible for other countries
POWER CONSUMPTION 17W
FOR J-MODEL 14W
DIMENSIONS 440 (W) x 110 (H) x 250 (D) mm
(17.3 x 4.3 x 9.8 inches)
WEIGHT 4.3 kg (9.5 Ibs)
* For improvement purposes, specifications and design are subject to change without notice.
$e SERVICE MANUAL
4

Il. DISMANTLING OF UNIT
3
UPPER COVER
In case of trouble, etc. necessitating dismantling, please
dismantle in the order shown in the photographs.
Reassemble in reverse order.
anni
SCREWS
1 4
CASSETTE LID
FRONT PANEL
W SCREWS
| SCREWS
SERVICE MANUAL

lil. CONTROLS
EJECT (@) PEAK METER
BUTTON
TAPE SELECTOR
TAPE COUNTER
RESET BUTTON
DIRECTION INDICATOR
TAPE COUNTER DOLBY NR SWITCH
AND SELECTOR
CASSETTE HOLDER
AND LID
TAPE TRANSPORT
BUTTONS
| Pee fe ee a
TIMER START MIC JACKS
SELECTOR
REV SELECTOR REC LEVEL
CONTROL
POWER
SWITCH
PHONES
JACK
REC
BALANCE
CONTROL
Fig. 3-1 Front View
rn
SERVICE
MANUAL
6

IV. PRINCIPAL PARTS LOCATION
TAPE SELECTOR SW
Swi
POWER SW SWI
TAPE COUNTER METER PCB
T2077B5020
a
a
. *
fy. in c ’ ad i
REC LEVEL VR VRI
REC BALANCE vR vRi——+
Fig. 4-1 Front View
r-—- POWER TRANSFORMER T90I VOLTAGE SELECTOR VS9OI -—— PRE AMP PCB
T2077(U) ({U] MODEL ONLY ) T2077 A
T2077(J) aac
T2077(C, 504A
T2077(E, 505A [E.V.B:S]
T2077(B,
CAM MOTOR CONTROL(B)A PCB
M903 CMR30CSIOA
—— REEL MOTOR SW LEAF PCB
M902 CMR30C5030
— CAPSTAN MOTOR
M90!
Fig. 4-2. Top View ([U] model)
SERVICE MANUAL

V. MECHANISM EXPLANATION OF EACH MODE
The operating functions are controlled by the rotary
encoder. The main cam wheel is rotated to the set point.
Here, we shall explain the mechanism functions:
The main cam wheel is driven by the cam motor through
cam gears (B) and (C).
5-1. DIRECT OPERATIONS RESULTING BY MOVEMENTS OF THE MAIN GEAR WHEEL
1) Pinch roller (Refer to Fig. 5-1)
CAPSTAN
PINCH
ROLLER
CAM MOTOR
Meigs GEAR (B)
KOK
\we——- CAM GEAR (C)
\Y
\Y
Why's
MAIN CAM WHEEL
nn
UU
ANN
\\
\\\\
~~
PINCH ROLLER
DRIVE LEVER
\
PINCH ROLLER
DRIVE SLIDE
The main cam wheel’s groove (A) rived the pinch
roller drive lever, pinch roller drive slide and the
pinch roller.
2) Head base plate (Refer to Fig. 5-2)
GROOVE
\\\
TA,
HEAD DRIVE
LEVER FULCRUM
The main cam wheel’s groove (8) drives the head
drive lever and the head base plate. When the head
SERVICE MANUAL
Fig. 5-1
When the pinch roller drive lever moves in the right
direction, the reverse side’s pinch roller moves to the
left direction and the capstan contacts to the forward
side’s pinch roller.
MAIN CAM WHEEL
Fig. 5-2
base plate moves vertically, the REC/PB combination
head moves vertically.

3) Head Rotation (Refer to Fig. 5-3)
MAIN CAM WHEEL
HEAD REVERSE ——>}
ARM
ae
(ae cae é
REV witty | FWD
“SE HEAD REVERSE GEAR
HEAD REVERSE ARM
Fig. 5-3
The main cam wheel’s groove ‘C) drives the head In the reverse mode, the head moves from left to
reverse arm and the head reverse gear. right.
The head rotates when the head reverse gear move. In FWD mode, the head moves from right to left.
SERVICE MANUAL

4) Brake and Reel Base (Refer to Figs. 5-4 to 5-7)
WF
SQ
SUPPLY ——=,
REEL (O)
WIND ARM
WORM WIND
GEAR
\\
ZZ Zs
GA, =~
BRAKE DRIVE ZZ, Gy Z
aD
LLL
—YVOE
; TAKE UP
\ REEL
MAIN CAM WHEEL
Fig. 5-4
The main cam wheel’s external surface drives the
brake drive lever and the slide brake.
The slide brake’s position rotates the brake and the
reel.
a. The slide brake at bottom position (Refer to Fig. 5-5)
Brake is applied on the reel (supply and take-up).
Wind arm is released from the reel. (In stop condi-
tion).
————————————————————————$—X—X— SO —— SERVICE MANUAL
10
Fig. 5-7
b. The slide brake at top position (Refer to Fig. 5-6)
The brake is free from the reel. Wind arm is released
from the reel. (ejected condition).
c. The slide brake at the middle position (Refer to Fig.
5-7)
The brake is not applied on the reel.
The wind arm and the reel base come into contact.
The reel motor rotates the worm wind gear. The wind
arm swings direction of left and right and rotates
the reel base. (In play, FF, rewind and IPLS condi-
tion).

VI. FIXING PROCEDURES FOR CAM WHEEL AND ROTARY ENCODE PCB
VIEW FROM
MAIN
CAM WHEEL
SUB CAM WHEEL
MIDDLE GEAR
SUB
CAM WHEEL
1) Lock at SUB CAM WHEEL from direction
(Fig. 6-1) and apply grease to areas A to B (the side
of the groove shaded with oblique lines) as in
Fig. 6-2.
2) Align marks (A) and (B) on MAIN CAM WHEEL and
SUB CAM WHEEL and fix them on capstan holder as
shown in Fig. 6-3.
Fig. 6-3
Fig. 6-4
3) Make sure that the marked positions on MAIN CAM
WHEEL and SUB CAM WHEEL do not move, then
fix MIDDLE GEAR on chassis.
4) Insert the head Reverse arm pin (8) (see Fig. 6-1) into
groove A in MAIN CAM WHEEL as in Fig. 6-4.
5) When fixing the rotary encode PCB, check the
pattern side is facing MAIN CAM WHEEL.
SERVICE MANUAL

Vil. MECHANICAL ADJUSTMENT
7-1. PINCH ROLLER PRESSURE MEASUREMENT (Refer to 7-1)
REV
PINCH ROLLER
PINCH ROLLER
SHAFT
PINCH ROLLER
SPRING
Put in FWD PLAY Mode. Push Pinch roller shaft down
with the spring gauge, and push the pinch roller 1 to
2 mm away from the capstan and release slowly.
Read the spring gauge at the moment the pinch roller
7-2. WINDING TORQUE MEASUREMENT
IN EACH MODE (Refer to Fig. 7-2)
CASSETTE TORQUE METER
Fig. 7-2
Insert a cassette torque meter (AJ-751179) and measure
in each mode, for Fast Forward and Rewind, measure
at the end of the tape when the tape has stopped
running.
Forward or Reverse mode
Take up Torque:
Back Tension Torque:
40 + 15 g-cm (25 to 55 g-cm)
3*? g-cm (2 to 5 g-cm)
Fast Forward or Rewind mode
Take up Torque: 120*120 g-cm (70 to 250 g-cm)
nm SERVICE MANUAL
12
300 to 400grm
FWD
PINCH ROLLER
PINCH ROLLER
SHAFT
PINCH ROLLER
SPRING
Fig. 7-1
touches the capstan and begins to rotate. Specified
contact pressure measurement is 300 to 400 grams.
If the correct measurement is not obtained, relace the
pinch roller spring. Do the same for the reverse side.
7-3. TAPE SPEED ADJUSTMENT
(Refer to Fig. 7-3)
CAM MOTOR
|
REEL MOTOR
B ]
TAPE SPEED CAPSTAN
ADJ VR MOTOR
Fig. 7-3
1) Connect a frequency counter to Line output termi-
nal.
2) Playback (Forward) a 3150Hz pre-recorded Test
Tape (AT-751263) and adjust the Tape Speed Adjust-
ment Volume to obtain a tape speed of 3150 Hz +
30 Hz.

Vill. HEAD ADJUSTMENT
TAPE GUIDE A
ERASE HEAD
TAPE GUIDE A
8-1. TAPE GUIDE HEIGHT ADJUSTMENT
1) Use the mirror tape (AJ-751178) and adjust the tape
guide height with turning the tape guide height
adjustment nuts @) and (6) so that when in FWD
Play mode, the tape edge and the head edge match as
in Fig. 8-1.
2) Play back the 315 Hz OVU (AT-750773) tape and
adjust the tape guide height adjustments @ and ©
so that the difference in level between Lch on FWD
and Lch on REV is within 0.5 dBm.
3) Play back the 1 kHz 4 Track (AT-750775) tape and
adjust the tape guide height adjustment nuts @) and
@) so that the difference in level between this and
the 315 Hz tape in 2) is within 2.0 dBm.
4) Repeat 2) and 3) until the optimum condition is
achieved.
5) Use the mirror tape and check that the tape runs
smoothly (The tape edge should not catch on the
tape guide and should not curl.) If the tape edge
catches on the tape guide, move the tape guide height
adjustment nuts @) and ©® slowly until the tape
runs smoothly.
6) After adjustment, check 2) and 3) again.
SERVICE MANUAL
__—> TAPE DIRECTION
(FWD)
TAPE GUIDE B
REC/PB HEAD
Fig. 8-1
(@),(b) TAPE GUIDE HEIGHT
(¢),(@) HEAD AZIMUTH
Fig. 8-2
7) After adjustment, paint-lock the tape guide height
adjustment nuts (@) and @).
8-2. HEAD HEIGHT ADJUSTMENT
No adjustment is required for the height of the head
itself. Follow the tape guide height adjustment pro-
cedures when the head is replaced and head height
adjustment is required.
8-3. REC/PB HEAD AZIMUTH
ALIGNMENT ADJUSTMENT
Play back the 10 kHz pre-recorded test tape (AT-
750778) for head azimuth adjustment and adjust screw
© for the FWD direction and screw @ for the REV
direction, so that the level on both channels is at max-
imum.
NOTES:
1. Be sure to clean the heads prior to head adjust-
ment.
2. Be careful not to use a magnetized driver or other
magnetized tools in the vicinity of the heads.
3. Be sure to demagnetize the heads with a head
demagnetizer before and after head adjustment.

IX. ELECTRICAL ADJUSTMENT
ic2
HAI2O58NT
FL2 FLI
(a) a
BA328LNH
MPX BIAS
FILTER FILTER
ix l !
LCH
IC301
nme seu .
ae wee vrai) vR2(R)
METAL Croz en)
BIAS BIAS Hm PB LEVEL ADu
FL2 FLI
Ic2 [aj{a}
HAI2058NT MPX BIAS
FILTER FILTER
R CH
VRE
(v)
<<)
)
ors aS)
(R) (R)
SS) vero
~~
tor REC LEVEL ADJ
1c302 BIAS ADJ (tu)
LBI649 ici
F M5218L0
Q
REV
SENS,
PI
VR6
VR3
——
ADJ A
a
Fig. 9-1 PRE AMP PCB (Parts Side View)
9-1. QUICK REVERSE SENSITIVITY
ADJUSTMENT (Refer to Fig. 9-1) ee DOLE
1) Make a tapeless cassette pack by removeing the tape
from the white colored test tape.
2) Connect a Digital voltmeter between TP1 and PEGE Guine
Ground.
3) Using the tapeless cassette pack, adjust VR301 so Fig. 9-2
that the digital voltmeter reads 10 + 0.5V DC at RWD
play mode.
NOTE: Clean the reference pole and the Detection tape
guide before adjustment (Refer to Fig. 9-2)
mn SERVICE MANUAL
14

9-2, PRE-AMP ADJUSTMENT (Refer to Fig. 9-1)
T
Step Adjustment Test Tape & Mode Adjustment Rest ee
Item Supply Signal Parts
FWD 315 Hz Test Tape FWD
60402
: PB Level (AT-750773) PB vR2 eo teaen
REV 315 Hz Test Tape REV Savage : i
2 PB Level (AT-750773) PB 6.0 £ 0.2 dBm Confirmation
; NORMAL ae een cooler ae 1 kHz, 10 kHz Leh, Reh
BIAS i flat + 0.5 dBm 0 +0.5 dBm
—26.0 dBm
CrO, Black Tape
Cro 2 1 kHz, 10 kHz
4 4 1 kHz, 10 kHz REC/PB VRS ;
> ot +
BIAS Aeon flat + 0.4 dBm
Metal Blank Tape
Metal 1 kHz, 10 kHz
5 1 kHz, 10 kHz REC/PB VR4 :
> © +
BIAS 16.0 dBm flat 0.4 dBm
Normal Blank
6 REC LEVEL Tape REC/PB VR3 —6.0 + 0.3 dBm
315 Hz, -6.0 dBm
. : Less than
7 Bias LEAK No Signal Input REC FLI 40 dBm NOTE 2
g MPX Filter Pp erem FL2 eenan NOTE 2
oscillator —30 dBm
NOTES:
. All adjustments are without Dolby.
2. The adjustments in steps 7 and 8 are not needed in normal condition, nor when FL1, FL2 are replaced
with a new one.
However, follow the instructions in step 7 and 8, incase they are misadjust.
NORMAL TAPE :
CrO, TAPE :
METAL TAPE :
SERVICE MANUAL
. Use the following cassette measuring tapes:
Maxell UDI C-60
TDK SA_ C-60
TDK MA C-60

X.
PC
BOARD
TITLES
AND
IDENTIFICATION
NUMBERS
ven SERVICE MANUAL
16
PC Board Title PC Board Number Remarks
PRE AMP PC BOARD T2077A503A [U, J]
T2077A504A [c, A]
T2077A505A E, V, B, S
POWER SW PC BOARD T2077A503B U, J
T2077A504B [C, Al
T2077A505B E, V, B, S
TR PC BOARD T2077A 503C lu, J]
T2077A504C [C, Al
T2077A505C LE, V, B, S|
METER PC BOARD T2077B5020
CONTROL (B) A PC BOARD CMR30C510A
CONTROL (B) B PC BOARD CMR30C510B
ROTARY ENCODER PC _ BOARD CMR30B5010
LEAF SW PC BOARD CMR30C5030

SECTION 2
PARTS LIST
TABLE OF CONTENTS
RECOMMENDED
SPARE
PARTS
..............
0.0000
c
cece
neues
19
dy MECHA:
BLOCK
(1)
.c
939 34.0%
bere
hs
8
alts
Monee
ee ead 4
ho
RO
20
2,
MECHA
(BLOCK
(OO)
155.
0
Wises
Gated
Se
bs els
Glen
a
me
hans
BAS
22
3.
PC
BOARD
BLOCK:
oie sant eek
dean
PAGE
eae
ewe
eee
yb
dew
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24
4..
ERE
AMP
PC’
BOARD
(5
sro
Sn
snips.
e
Peewee
eae
eae
ee
24
5...
METER
PC
BOARD
o5
ci25
6
8a
dae
ade
eee
dom
cba
aw
bale
25
6.
CONTROL
(B)
A
PC
BOARD
...................
0c
cee
eee
25
7.
CONTROL
(B)
B
PC
BOARD
...............0..
0000
cece
eee
uae
25
&
VER
PC
BOARD
rng
ht
ae
en
ch
eri
WA
dace
ae
eee
Sale
all
id
25
9;
ROWER
SW
PC
BOARD
issc3
ce
ceihetie
bbe
Sis
a
eaten
ed
Kpeed
4
25
10. ASSEMBLY BLOCK oi. sc5.2i5::0 odie sevesate $4 65 Goer ae BRA wed acaes 26
11. FINAL ASSEMBLY BLOCK........... 0.0.0.0. c cece eee eae 27
UNE a kre hates wink Caen ean toed wire SaaS Wad ey Seer add 28
Resistors
and
Capacitors
which
are
not
listed
in
this
parts
list,
please
refer
to
COMMON
LIST
FOR
SERVICE
PARTS.
Fe
es
PARTS
LEST
weir

ra
RE
NO.
5.
18
ATTENTION
. When placing an order for parts, be sure to list the parts no. model no., and description of each part. If any of
this information is omitted, there are instances in which pare cannot be shipped or the wrong parts will be
delivered.
. Please be careful not to make a mistake in the parts no. If the parts no. is in error, a part different from the
one ordered may be delivered.
. Because part numbers and part definitions and supply in the Preliminary Parts List may have been the subject
of changes, please use this parts list for all future reference.
HOW TO USE THIS PARTS LIST
. This Parts List shows those parts which are considered necessary for repairs. Other parts, such as resistors and
capacitors, are shown in the “Common List for Service Parts” from which these parts should be selected and parts.
. The Recommended Spare Parts List shows those parts in the Parts List which are considered particularly important
for service.
. Parts not shown in the Parts List and “Common List for Service Parts” will not in principle be supplied.
. How to read the parts list
a) Mechanism Block b) P.C Board Block
HEAD BASE BLOCK 6. SYS. CON. PC BOARD BLOCK
F. REF. ,
PART NO. DESCRIPTION NO. PART NO. DESCRIPTION
-1x BH-T2023A320A HEAD BASE BLOCK GX-F66R 6-1 BA-T2034A070A PC SYS CON BLK GX-F44R
HP-H2206A010A HEAD R/P PR4-8FU C 6-IC1 E1-3245 36 IC HD14049BP
ZS-477876 PAN20x03STL CMT 6-IC2 EI-336801 IC MB8841-564M
ZS-536488 BID20x08STL CMT 6-IC3 E1-331661 IC SN7405N
ZG-402895 CS ANGLE ADJUST SPRING 6-IC4 EI-336725 IC M54527P
6-TRIto4 — ET-200985 TR 28C2603 F,G
SP (Service Parts) Classification 6-TR5to28 ET-554657 TR 2SA733A P,Q
er
eee
eras
6-D1
ED-318292
D
SILICON
H
182473T-77
T26
A small “x” indicates the inability to ¢.p2t0a — ED-308952 D GERMA V 1K34A-LR F07
\ show that particular part in the Photo or 6-Dsto10 —- ED-318292 D SILICON H 182473T-77 T26
\ Illustration. — EI-318384 OSC X’TAL NC-18C
This number corresponds with the in- f oe nae
dividual parts index number in that figure, | SP (Service Parts) Classification
|
This number corresponds with the Figure —~ | These reference symbols correspond with
Number component symbols in the Schematic
Diagrams.
The kind of part and its installation position can both be determined by the Part Number. To determine where a
part number is listed, utilize the Parts Index at the end of the Parts List. It is necessary first of all to find the Part
Number. This can be accomplished by using the Reference Number listed at the right of the part number in the Parts
Index.
WARNING
A INDICATES SAFETY CRITICAL COMPONENTS. FOR CONTINUED SAFETY, REPLACE SAFETY
CRITICAL COMPONENTS ONLY WITH MANUFACTURE’S RECOMMENDED PARTS
AVERTISSEMENT
AIL ,INDIQUE LES COMPOSANTS CRITIQUES DE SECURITE. POUR MAINTENIR LE DEGRE
DE SECURITE DE L’APPAREIL, NE REMPLACER QUE DES PIECES RECOMMANDEES PAR LE
FABRICANT
PARTS LIST