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Manual: F8605A SM SANYO EN

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Manual: F8605A SM SANYO ENdimension of International. -
Organization for Standardizat
Auto-Search Tuning
SERVICE MANUAL = SANYO ELECTRIC CO., LTD. SANYO ELECTRIC TRADING CO., LTD.
OSAKA, JAPAN |
SPECIFICATIONS
Frequency Ranges: MW 540 — 1605 kHz Selectivity: MW 20 dB (at 10 kHz off-tuning
FM 87.5 — 108 MHz : from 1000 kHz)
Intermediate Frequency: MW 455 kHz Audio Output: 7 Undistorted 3.5 W
FM 10.7 MHz Maximum 53.0W MW FM
Sensitivity: MW 20 xV (for 500 mW output) Fidelity: Average 100 Hz....... —~3dB -3 dB
FM 62xV (for 500 mW output) | 4000 Hz ....... -15dB —4dB
Sensitivity for Signal Seeking: MW 20 uV | Power Source: | DC 12 V, Negative grounded battery
FM 6uV Speaker: 5" Permanent Dynamic Type
Signal to Noise Ratio: MW 25 GB (at 56 vV signal input) | | Voice Coil Impedance 4 ohnis.
FM 35 dB (at 25 yV signal input)
CONSTRUCTION STANDARD ACCESSORIES
Speaker Box, enclosure only Speaker, 5” 4 ohms Remote Search Control Kit Spare Fuse, 1A Resistor, Noise Suppressor Capacitor, Noise Suppressor Instruction Book Bracket, L type, Speaker Box mfg. Bracket, U type, Speaker Box mtg. Hex. Hd Screw, 5xi6mm, Speaker Box mtg. Spring Washer, 50 Speaker Box mig. Washer 5o Speaker Box mtg. Hex. Hd Screw, 6x30mm, Speaker Box mtg. Hex. Nut 60 Speaker Box mtg. Spring Washer, 60 Speaker Box mtg.
asher 60 Speaker Box mtg. Bracket, Perforated, Radio Rear Support Bracket, L type, Radio Front Support Hex. Hd Screw, 5x8mm, Radio mtg. Spring Washer, So Radio mtg.
asher 50 Radio mtg.
@® Push Button, FM © Push Button, MW R-11685a R-111663a
NNN Yr NN 8 — DO DD Pf DO et ee et et et et et
R-A397317 | Trim Plate, Front Plastic Ass’y R-367050 | Knob, Soft Plastic, OFF-VOLUME/TUNING R-397315 | Knob, Hard Plastic, TONE/TUNING CONTROL R-24950 Hex. Nut, Trim Plate mtg. R-113232 | Washer, Trim Plate mtg. R-A397430 | Push Button, SEARCH R-A267533 | Push Button, MW R-A267532 | Push Button, FM
Push Button, LO Dial Scale, Plastic
R-267547 | Back Ground, Black-painted Metal R-S87544 | Drum Assembly, Dial Indicator R-S87529 | Shaft, Tuning Control R-127071 | Spring, Link between Tuner and Shaft above
att
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SCHEMATIC DIAGRAM
Seana oe
dg! 19
(Q)-+— a
oe rig * As * Ea Boss ta | Bre 3 Petia ae
SS Ss
eee
SOREL Lee EERE... Seen aN CREE Te tee ne eee EE NRL e BORE =” SEanwaS are oan <. o
ALIGNMENT PROCEDURES F ig. 1
ANTENNA TRIMMER ADJUSTMENT With radio installed in car and antenna fully extended, tune in a weak station near 1400 KHz and adjust CT1 for maximum output.
| . . ‘Trimmer CTI
COLLECTOR CURRENT ADJUSTMENT With power supply voltage (13.2V) and dummy load (4 ohms) applied, operate the unit without connection of car antenna and set the volume control of the unit at the minimum response. |
Turn on the unit and operate it in AM reception. Fig, 2 Insert a miliammeter or connect a voltmeter as shown below and adjust a mini-pot (VRI 250K) for 500 micro-ampere current (or 500 mili-volt voltage) reading provided by a collector current of Q8 (2SA322).
Turn on the unit and operate it in FM reception. Connect a voltmeter across Resistor (Rl 270 ohms) as shown below and adjust a mini-pot (VR5 20K) for 0.95 volt emitter voltage. —
AM ALIGNMENT PROCEDURES Check power supply voltage (13.2V). Volume control should be set at maximum response. Test signal from Modulation frequency 400 Hz Signal generator: Modulation percentage 30%
| Signal level just high enough to provide meter deflection.
Signal supply inlet:. Antenna receptacle through the dummy antenna. Output meter connection: Through extension outlet unless other-
wise noted. |
| SIGNAL | STEP | GENERATOR RADIO DIAL SETTING pele TO BE 7 REMARKS
FREQUENCY
455 KHz Low frequency end stop | T10,T11,T12&T13 Adjust for maximum
AM RF ALIGNMENT
AM TRIGGER ALIGNMENT
1400 KHz i i
F Ig. 4 INSTRUMENT CONNECTION FOR IF & RF TRACKING ALTGNMENT
Adjust for maximum output.
Repeat steps 2 thru 4.
Shortcircuit a switch between R61 and VR-3. | Adjust for minimum current. See Fig. 5 for meter connection.
Adj ust for 5 mA current thru relay.
DUMMY
DUMMY ANTENNA LOA
sie Q Oa 7 Lo—9—o- : SIGNAL ten GENERATOR 6 MET
wlan. a STANDARD o SIGNAL OUTPUT GENERATOR METER
Al=™75-Fisg( ohms)
! ‘ 3 ‘ t ' i i ' \ f \ Fi . \
\ if : : are “ ‘= we ant
Fig. 7 Fig. 8
A 1S188 To ‘
oe o Antenna
or 50 mA full scale = TP3 al Receptacie
FM ALIGNMENT PROCEDURES Check power supply voltage (13.2V). Signal supply inlet: Antenna receptacle through the dummy antenna. Volume control should be set at maximum response. Output meter connection: Through extension outlet unless otherwise Test signal from § Modulation frequency 400 Hz noted. Signal Gererator: Frequency deviation 22.5 KHz
Signal level just high enough to provide meter deflec- tion.
GENERATOR Sr ae ELEMENTS STEP CONNECTION REMARKS > FREQUENCY SETENG ADJUSTED
EM IF ALIGNMENT (with sweep marker generator)
10.7 MHz
bs 10.7 MHz
87 MHz Low frequen-| To antenna thru the dummy CT-2 Adjust for maximum. cy end stop. antenna.
10. 98 MHz Tune to 98 To antenna thru the dummy CT-1 Adjust for maximum. MHz signal antenna.
TRIGGER ALIGNMENT
11. 98 MHz - Tune to 98 To antenna thru the dummy! 116 Shortcircuit a switch between R61 and VR-3. Adjust for minimum current.
Point of no interference
T1, T2, T3, T4, T5, T6 thru T7.
Connect output terminal to antenna. Input terminal to Tp-1 and Tp-3.
\
Adjust for most symmetrical crossover curves Connect output terminal to and maximum linearity as shown in Fig. 8. antenna.
Input terminal to Tp-2 and Tp-3.
Point of no interference.
MHz signal antenna. See Fig. 5 for meter connection.
12. 98 MHz Tune to 98 To antenna thru the dimmy VR-3 Adjust for 5 mA current thru relay. 15 dB * MHz signal antenna.
CIRCUIT BOARD DIAGRAM (Top View)
O— vr. 2 Gy
VR-4-A 10K
VR-4-B 5K
MW RF (L11)FM RF (L4) FM OSC(L7) aborted Mieco ses I: “4S. : Pre ry OQ U
Hee Y | S3-b - S3-a Se-b Sed Se-a
oe ee HP LIL ) “UF Nghe | | to iL rw j{ mw || searc | ae
is2V
SOCKET FOR AUDIO INPUT
R-S87546 Fix metal assembly 1
R-S87547 Fix metal assembly 1
R-117969 Fix metal 1
R-117981 Gear 1
R-117976 Washer 1
R-247165 Gear 1
R-397401 Planetary carrier 1
R-397400 Gear “C” 1
R-397399 Gear ““B” 1
R-397398 Gear “A” 1
R-397403 Gear “‘E” 1
R-397402 Gear “D” 1
R-S87550 Movement assembly 1
R-157073 Coil spring 1
R-357089 Tube 1
M3x5 Countersunk screw 2
(CONTROLS)
Tuner Mechanism, Auto Search R-S87541 L4,7,9, ICT 1, 2 R-C0710 Trimmer Capacitor
CT3 R-CO71i Trimmer Capacitor R-C0702a Trimmer Capacitor
R-R11018 Mini-pot, 250K, Q8 Bias Control
R-R11012 Mini-pot, 5K MW Trigger Adjust
R-R11013 Mini-pot, SK, FM Trigger Adjust
R-R124742
R-R11016
R-S480i
R-S4800
Push Button Switch, Search-MW-
(CABINET)
LR-437060 R-397315 R-367050 R-A397430 [397430 R-267531
(R-A267533 R-397429 R-267533
(R- -A267532 -397429
R-157038b
R-83138a
R-S3139b
Trim Plate only
Shaft
Washer, Control Shaft Spacing
Printed Circuit Board, Push Switch
mtg.
Antenna Lead & Socket
Speaker Lead (Male), speaker side Lead & Socket, Remote Control
Socket, 5P, Power Supply/Speaker
Socket, DIN Input
Lug Terminal, Output Transistor
(1)
(COILS & TRANSF ORMERS)
R4, 38 R6, 15, 20, 27
39, 47, 50, 54,
58, 61, 64, 70 R7, 14, 19 R8, 13, 17, 23, 44, 66, 68
R9, 55 R10 R11, 16, 21, 33 R12, 18, 52, 59 R22 R24, 77 R25, 28 {R29, 30, 72
R31 R32 R34 R35 R36, 49, 63 R40 R41 R42, 46, 67 R43, 45, 51 R48, 62 R53 R56 R57 R60 R65 R69 R71 R73, 75 R74, 76
Pe re eens
R-R153K R-R681K R-R151K R-R183K R-R223K R-R331K R-R152K R-R562K R-R680K R-R182K R-R181K R-R332K R-R272K R-R683K R-R334K R-R104K R-R561K R-R273K R-R123K R-R221K R-R474K R-R472K R-R361K R-R3N3K R-R1O1K R-R391J R-R200J
VHF Coil
Plunger, Tuner Mechanism
IF Transformer, FM 2nd/4th stage
IF Transformer, Prim. of FM 3rd stage
IF Transformer, Sec. of FM 3rd stage
IF Transformer, Prim. of FM 5th stage
IF Transformer, Sec. of FM Sth stage
Coil, MW Oscillator
IF Transformer, Prim. of MW Ist stage
IF Transformer, Sec. of MW Ist stage
IF Transformer, Prim. of MW 2nd stage | IF Transformer, Sec. of MW 2nd stage
IF Transformer, MW Trigger Stage
IF Transformer, FM Trigger Stage
IF Transformer, FM Trigger Stage IF Transformer, MW Trigger Stage
Transformer, Audio Driver
Diode
Diode
Diode
| Diode
| Thermistor
(CAPACITORS) |
330
1.5K
5.6K
68
1.8K
180
100 390 20
£10% “AW +10% “~W +10% “~W
+10% YaW £10% %W £10% %4W £10% %4W +10% %W +10% “AW +10% %4W
ohms +10% %4W
ohms +10% “4W
ohms +10% “%4W
ohms +10% %W
ohms +10% %4W
ohms +10% “%4W
ohms +10% %4W
ohms +10% “%4W
ohms +5% %4W
ohms +5% “%W
C2, 12, 54, 65 R-CKD200K | Ceramic 20 PF
C3 R-CKD501Mj Ceramic 500 pF
C4 R-CKD102Z | Ceramic 0.001 mfd
ICS. | R-CKD502Z | Ceramic 0.005 mfd
C6 R-CKD150K | Ceramic 15 pF
C7 R-CKD020K | Ceramic 2 pF
C8 R-CKD331K | Ceramic 330 pF
C9 R-CQT471K | Styrol 470 pF
C10, 27, 55 R-CKD040K| Ceramic 4 pF
Cil R-CKD030K | Ceramic 3 pF
C13 R-CKD202Z | Ceramic 0.002 mfd
C14, 15 R-CKD100K | Ceramic 10 pF
C16, 34, 56 R-CKDO10K | Ceramic 1 pF
C17, 22, 23,24 |R-CKD203Z|Ceramic 0.02 mfd
25, 26, 28, 29
31, 32, 35, 43
44,58
68, 69, 70, 71 |
C38, 49, 74 R-C9060 Electrolytic 10 mfd
C39, 40, 45, 77 R-CKD201K}| Ceramic 200 pF
C41 — R-CQS502Y | Mylar 0.005 mfd
C42, 46, 50, 62 R-CQS103Y | Mylar 0.01 mfd
63, 79, 80 |
C73, 76, 82 R-C9162 Electrolytic 500 mfd
C78 R-C9145 Electrolytic 100 mfd
C81 R-C9127a Electrolytic 500 mfd
C83 R-C7708 Feed-thru 100 pFx4
WM- 341 JAN. 1972
+ 80% 50V
+ 30% SOV
+10% SOV