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SA-C5B
SERVICE MANUAL
Ver 1.0 2001. 07
AEP Model UK Model Australian Model E Model
· SA-C5B is the speaker system in CMT-C5.
SPECIFICATIONS
Speaker system Speaker units Two-way, bass reflex system 9 cm dia., cone type woofer 2.5 cm dia., balance drive tweeter 6 ohms Approx. 149 × 248 × 220 mm Approx. 1.9 kg net per speaker
Rated impedance Dimensions (w/h/d) Mass
SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
SPEAKER SYSTEM
9-873-219-01
2001G1600-1 © 2001.7
Sony Corporation
Home Audio Company Shinagawa Tec Service Manual Production Group
SA-C5B SERVICE NOTE
[When bringing in the equipment for service] The notice is shown on both Warranty Card and Repair Service column of operation manual, telling to bringing in both of the equipment (HCD-C5) and speaker system (SA-C5B) together to service station when service (repair) is needed. [How to check speaker only] When only speaker is brought in for service, check its operations by supplying both the power and the signal to the AMP board of the speaker as shown below. Check method : 1.Perform connection as shown below.
+ + COM +5V GND +20V -20V CN801 AMP board 9 RELAY 8 SP-GND 7 6 +B 5 POWER-GND 4 -B 3 SHIELD GND 2 1 PRE-SIGNAL
DC regulated power supply 1
LED (BLUE)
DC regulated power supply 2
Speaker
Audio signal generator
AUDIO SIGNAL GND
· DC regulated power supply 1 (+5 V) It functions to turn on the speaker relay driver. · DC regulated power supply 2 (±20 V) It is desirable to use the DC regulated power supply of the dual tracking type that can supply its output voltages in two polarities of positive and negative polarities. However, the two units of the DC regulated power supply that supplies only a single output voltage can also be used. (See the figure below.)
CN801 DC regulated power supply + 7 6 5 4 3
+20V -20V
DC regulated power supply
+ -
+B POWER-GND -B
· Audio signal generator Output frequency : 1 kHz Output voltage : 100mV p-p or less Output impedance : 600 2.Turn on the main power of the DC regulated power supply 2. Then turn on the main power of the DC regulated power supply 1 (+ 5 V). After that, input the output signal of the audio signal generator as shown. 3.Check that the LED (D831, D832 (BLUE)) turns on and the audio signal can be heard from the speaker. Notes : 1 For the speaker cord, disconnect it from the speaker or leave it open. 2 Be careful not to apply an excessive input audio signal to the speaker. 3 If the power voltage is less than +/- 14 V, the speaker relay will not be activated. [Caution when removing the front panel] The special screwdriver (Sony part code No. 3-985-911-01) of star type (six star type) is required to remove the front panel.
2
SECTION 1 DIAGRAMS
1-1. PRINTED WIRING BOARD
SA-C5B
· Semiconductor Location (AMP BOARD)
Ref. No. D821 1 2
D831, D832 BACK LIGHT FOR SP2
2
Location B-3 C-1 B-1 C-2 C-2 C-3
1
1
IC801 Q821 Q822 Q823 Q824
9
· Semiconductor Location (LED BOARD)
Ref. No. D831 D832 Location A-5 A-5
2 4
1
5
IC801
Note on Printed Wiring Board: · X : parts extracted from the component side. · : Pattern from the side which enables seeing. · Indication of transistor
Q B C E These are omitted.
3
3
SA-C5B
1-2. SCHEMATIC DIAGRAM
D831, D832 BACK LIGHT FOR SP2
Note on Schematic Diagram: · All capacitors are in µF unless otherwise noted. p: pF. 50 WV or less are not indicated except for electrolytics and tantalums. · All resistors are in and 1/4 W or less unless otherwise specified. · 2 : nonflammable resistor. · C : panel designation.
Note: The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. · A : B+ Line. · B : B Line. · Voltages and dc with respect to ground under no-signal conditions. no mark : AUDIO · Voltages are taken with a VOM (Input impedance 10 M). Voltage variations may be noted due to normal production tolerances.
4
4
SA-C5B SECTION 2 EXPLODED VIEWS
NOTE: · -XX, -X mean standardized parts, so they may have some differences from the original one. · Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. · · The mechanical parts with no reference number in the exploded views are not supplied. Hardware (# mark) list and accessories and packing materials are given in the last of this parts list.
not supplied
10
6
not supplied
8 5
SP1
9
#4 SP2
#4
7
#2
4 2 1
8
#2 not supplied
11
5
13
#3 not supplied
3 12
not supplied #1
Ref. No. 1 2 3 4 5 6 7 8 9 10
Part No. X-4953-847-1 4-234-735-01 4-234-729-01 4-234-725-01 4-234-730-01 1-757-920-11 1-681-713-11 4-874-614-71 4-234-724-01 1-757-788-11
Description FRAME ASSY, GRILLE SCREW, ORNAMENT SCREW (P), ORNAMENT PANEL, FRONT PACKING (A) CORD LED BOARD SCREW CABINET, SPEAKER CORD, CONNECTION
Remarks
Ref. No. 11 12 13 SP1 SP2 #1 #2 #3 #4
Part No. 4-235-539-01 4-234-726-01 A-4476-915-A 1-544-854-11 1-544-853-11 7-685-662-79 7-682-563-04 7-682-548-04 7-685-871-01
Description PLATE BASE (STAND) AMP BOARD, COMPLETE SPEAKER (2.5cm) SPEAKER (9cm) SCREW +BVTP 4X14 TYPE2 N-S SCREW +B 4X12 SCREW +B 3X8 SCREW +BVTT 3X6 (S)
Remarks
5
SA-C5B AMP LED
· ·
SECTION 3 ELECTRICAL PARTS LIST
COILS uH: µH RESISTORS All resistors are in ohms. METAL: metal-film resistor METAL OXIDE: Metal Oxide-film resistor F: nonflammable SEMICONDUCTORS In each case, u: µ, for example: uA...: µA... , uPA... , µPA... , uPB... , µPB... , uPC... , µPC... , uPD..., µPD...
When indicating parts by reference number, please include the board name. The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.
NOTE: · Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. · -XX, -X mean standardized parts, so they may have some difference from the original one. · Items marked "*" are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. · CAPACITORS: uF: µF
·
Ref. No.
Part No.
Description
Remarks
Ref. No. R827 R828 R831
Part No.
Description 100K 33K 1.5K 5% 5% 5%
Remarks 1/4W 1/4W 1/2W
A-4476-915-A AMP BOARD, COMPLETE < CAPACITOR >
1-249-441-11 CARBON 1-249-435-11 CARBON 1-260-330-11 CARBON < RELAY >
C801 C802 C803 C804 C807 C811 C812 C813 C814 C821 C824
1-126-963-11 1-162-290-31 1-126-967-11 1-162-215-31 1-161-494-00 1-126-953-11 1-126-953-11 1-164-159-11 1-164-159-11 1-126-382-11
ELECT CERAMIC ELECT CERAMIC CERAMIC ELECT ELECT CERAMIC CERAMIC ELECT
4.7uF 470PF 47uF 47PF 0.022uF 2200uF 2200uF 0.1uF 0.1uF 100uF 0.22uF
20% 10% 20% 5%
50V 50V 50V 50V 25V 35V 35V 50V 50V 16V 50V
RY801 1-755-170-11 RELAY (12V) 1-681-713-11 LED BOARD < CAPACITOR > C831 C832 1-164-159-11 CERAMIC 1-164-159-11 CERAMIC < CONNECTOR > CN831 1-564-718-11 PIN, CONNECTOR (SMALL TYPE) 2P < DIODE > D831 8-719-072-76 DIODE SEL5E23C-TP15 D832 8-719-072-76 DIODE SEL5E23C-TP15 MISCELLANEOUS 10 SP1 SP2 1-757-788-11 CORD, CONNECTION 1-544-854-11 SPEAKER (2.5cm) 1-544-853-11 SPEAKER (9cm) 0.1uF 0.1uF 50V 50V
20% 20%
20% 5%
1-136-169-00 FILM < CONNECTOR >
CN801
1-564-512-11 PLUG, CONNECTOR 9P < DIODE >
D821
8-719-991-33 DIODE 1SS133T-77 < IC >
IC801
8-759-502-31 IC SI-18751 < TRANSISTOR >
Q821 Q822 Q823 Q824
8-729-141-30 8-729-620-05 8-729-620-05 8-729-620-05
TRANSISTOR TRANSISTOR TRANSISTOR TRANSISTOR < RESISTOR >
2SC3623ATP-LK 2SC2603TP-EF 2SC2603TP-EF 2SC2603TP-EF
R801 R803 R804 R807 R808 R809 R820 0 R823 0 R824 R826
1-249-421-11 1-249-417-11 1-249-435-11 1-249-437-11 1-249-429-11 1-249-429-11 1-249-429-11 1-216-429-00 1-249-381-11 1-249-429-11
CARBON CARBON CARBON CARBON CARBON CARBON CARBON METAL OXIDE CARBON CARBON
2.2K 1K 33K 47K 10K 10K 10K 270 1 10K
5% 5% 5% 5% 5% 5% 5% 5% 5% 5%
1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1/4W 1W 1/4W F 1/4W
6
SA-C5B
MEMO
7
SA-C5B
REVISION HISTORY
Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page. Ver. 1.0 Date 2001.07 New Description of Revision