PIONEER Service Manual. A subscription to, or additional copies Also test with plug reversed of, PIONEER Ser vice Manual may be obtained at a (Using AC adapter Earth nominal charge from PIONEER. plug as required)
Page 3
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be installed before shipment. Please be sure to follow this method especially if it is specified in this manual. SX-315...
For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions, apply as you think it appropriate.) 2.1 PACKING Packing tape Power cord Packing tape Packing tape SX-315...
Page 9
5777200140100-IL FM Antenna Assy ADH7030 Loop Antenna Assy ATB7013 Remote Control Unit 8300740600010-IL Battery Cover VNK4997 NSP 7 Battery G670001R50190-IL Polyethylene Bag (SET) 6330210019000-IL NSP 9 Polyethylene Bag (accessory) 6337000240010-IL Pad LR 6230211154000-IL Packing Case 6007210700010-IL Polyethylene Bag 6330210059000-IL SX-315...
2.3 FRONT PANEL SECTION To CNT2 CP302 To CNT1 CP301 Nut: Accessory of FRONT Assy SX-315...
Page 13
FRONT PANEL SECTION parts List Mark No. Description Part No. FRONT Assy 7028063501010-IL ST-BY TACT Assy 7028063506010-IL H/P Assy 7028063505010-IL Front Panel 3067212041000-IL Pioneer Badge VAM1129 Spring 3720210276000-IL Window 5070212073000-IL Knob 5087211121000-IL SB Button 5097212581000-IL FUNC Button 5097212591000-IL SU Button...
Therefore, when replacing, be sure to use parts of identical designation. ÷ : The power supply is shown with the marked box. POWER ASSY (7028063521010-IL) PROTECTION ASSY (7028063504010-IL) POWER TRANSFORMER (8200858630180-IL) ST-BY TACT ASSY (7028063506010-IL) H/P ASSY (7028063505010-IL) SX-315...
3.3 MAIN, PROTECTION and POWER ASSYS MAIN ASSY (7028063491010-IL) (FL) (FL) (FL) (FL) (FL) (SW) (FL) (FL) (SL) (SL) (SL) (SL) (SL) (SW) (SW) : Refer to "6.1 IDLE ADJUSTMENT" CP502 CP503 SX-315...
Page 19
: AUDIO SIGNAL ROUTE (Front L ch) : AUDIO SIGNAL ROUTE (SubWoofer ch) (SL) (PL) : AUDIO SIGNAL ROUTE (Surround L ch) : AUDIO SIGNAL ROUTE (Phones L ch) : AUDIO SIGNAL ROUTE (Center ch) A B C CN504 SX-315...
Page 21
: AUDIO SIGNAL ROUTE (Digital) (AD) : AUDIO DATA SIGNAL ROUTE (AD) (FL) : AUDIO SIGNAL ROUTE (Front L ch) (AD) (SL) : AUDIO SIGNAL ROUTE (Surround L ch) : AUDIO SIGNAL ROUTE (Center ch) (SW) : AUDIO SIGNAL ROUTE (SubWoofer ch) SX-315...
3.5 CNT1, CNT2, FRONT, SW AMP, ST-BY TACT and H/P ASSYS CNT1 ASSY (7028063492010-IL) (FL) (FL) (SW) (SL) (SL) (SW) CNT2 ASSY (7028063502010-IL) (SW) (SW) (SL) (SW) (SW) (FL) (SW) (SW) (SL) (FL) (SW) E F G H SX-315...
Page 23
: AUDIO SIGNAL ROUTE (Front L ch) (SL) : AUDIO SIGNAL ROUTE (Surround L ch) : AUDIO SIGNAL ROUTE (Center ch) (SW) : AUDIO SIGNAL ROUTE (SubWoofer ch) (PL) : AUDIO SIGNAL ROUTE (Phones L ch) : Refer to "6.1 IDLE ADJUSTMENT" SX-315...
Although polarity indications are not provided for each transistor on the PC board, the following indications are provided on a blank space of the board: E C B SIDE B Chip Part P.C.Board E C B Lead type Lead type Chip type SX-315...
4.3 POWER ASSY SIDE A SIDE A AC IN POWER ASSY CP803 CP802 IC802 POWER TRANSFORMER IC803 Q802 CP801 IC806 IC804 POWER TRANSFORMER IC805 Q801 CN505 CP505 SX-315...
3. Turn on the power, and perform aging for more than one minute. 4. Slowly turn the adjustment VR clockwise so that the voltage becomes in the range of 2.5mV ± 0.5mV. Adjustment Points SW AMP ASSY SIDE A VR201 MAIN ASSY SIDE A VR502 VR503 VR505 VR504 VR501 SX-315...
When the overcurrent detection circuit is not normal • Power amp section is in failure. • Protection circuit is in failure. • Microcomputer is in failure. (pin 7: protection) • Only when the signal is output, short-circuiting of the output circuit is suspected. SX-315...
Page 44
• D803-D806 are in failure. R803 and R804 • IC802 and IC803 are in failure. (0.22Ω, 1W) open • Short-circuiting of these peripheral circuits. circuited? Does IC806 (ICP-N15) • IC805 is in failure or its peripheral circuits are short-circuited. open circuited? SX-315...
7.1.2 PCB LOCATION H/P ASSY CNT2 ASSY FRONT ASSY CNT1 ASSY ST-BY TACT ASSY PROTECTION ASSY DSP ASSY MAIN ASSY POWER ASSY FM/AM TUNER POWER UNIT SW AMP ASSY TRANSFORMER SX-315...
Page 46
Non Connection PE0/EC0/INT0 P.DOWN Power down detection PE1/EC1/INT1 VOL_UP Encoder volume up control PE2/INT2 VOL_DOWN Encoder volume down control PE3/INT3/NMI PROTECTION Protection detection PE4/PMC Remocon input − PE5/CINT Vdd connection (Connect to Vdd at no use) − PE6/PWM No Use SX-315...
Page 47
Interrupt Request signal for DSP − PD2/A53 Non Connection PD3/A52 74HC151_B Data select for Multiplexer PD4/A51 74HC151_A Data select for Multiplexer − PD5/A50 No Use − PD6/A49 No Use − PD7/A48 No Use PF0/A47 TU_MUTE Tuner mute control PF1/A46 DSP_MUTE Dsp mute control SX-315...
Page 49
Format Q-subcode XTO 6 Converter Buffer X'tal XTI 7 Error & Status Detect AC-3/MPEG Detect Audio R 65 Clock DAIF PVDD 66 Recovery Decoder PVSS 64 DATT DATT DATT DATT DATT DATT DATT DATT 8 to 3 Input Selector SX-315...
8. PANEL FACILITIES 8.1 FRONT PANEL SECTION Front panel SX-315 AUDIO MULTI-CHANNEL RECEIVER STANDBY/ON INPUT SELECTO – MASTER VOLUME STATION CLAS S F M/AM TAPE/VC R DIGITA L DVD/DVR DOWN – AUTO SURROUND STEREO TUNING PHONES SYSTEM TUNE R CHANNE L...
SLEEP Lights when a stereo FM broadcast is being Lights when the receiver is in sleep mode. received in auto stereo mode. Lights when the mono mode is set using the MPXbutton. Lights when a broadcast is being received. SX-315...
TUNING +/– Use to manually tune into radio stations. STATION +/– Use to tune to preset stations. 10 SYSTEM SETUP Press to access the System Setup menu. 11 CH LEVEL Press to set up the channel levels for surround sound. SX-315...
Page 56
If the signal is weak then switching to mono will improve the sound quality. BASS +/– Use with the TONE button above to adjust the bass. TREBLE +/– Use with the TONE button above to adjust the treble. SX-315...
Need help?
Do you have a question about the SX-315 and is the answer not in the manual?
Questions and answers