Yamaha PORTATONE PSR-340 Service Manual
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Yamaha PORTATONE PSR-340 Service Manual

Yamaha PORTATONE PSR-340 Service Manual

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Table of Contents

SERVICE MANUAL
CONTENTS
SPECIFICATIONS ...................................................................................... 3
PANEL LAYOUT ....................................................................................... 4
CIRCUIT BOARD LAYOUT ....................................................................... 5
BLOCK DIAGRAM .................................................................................... 6
DISASSEMBLY PROCEDURE ................................................................. 7
LSI PIN DESCRIPTION ............................................................................ 8
IC BLOCK DIAGRAM ............................................................................. 10
CIRCUIT BOARDS ................................................................................. 11
TEST PROGRAM & INITIALIZE ............................................................... 15
MIDI IMPLEMENTATION CHART ............................................................ 18
PARTS LIST
OVERALL CIRCUIT DIAGRAM
PK
001622
HAMAMATSU,JAPAN
1.59K-605 I
Printed in Japan'99.05

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Summary of Contents for Yamaha PORTATONE PSR-340

  • Page 1 SERVICE MANUAL CONTENTS SPECIFICATIONS ..................3 PANEL LAYOUT ..................4 CIRCUIT BOARD LAYOUT ............... 5 BLOCK DIAGRAM ..................6 DISASSEMBLY PROCEDURE ..............7 LSI PIN DESCRIPTION ................8 IC BLOCK DIAGRAM ................10 CIRCUIT BOARDS ................. 11 TEST PROGRAM & INITIALIZE ............... 15 MIDI IMPLEMENTATION CHART ............

  • Page 2: Important Notice

    PSR-340 IMPORTANT NOTICE This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and understood by the users, and have therefore not been restated.
  • Page 3 3 Preset Songs (Demo) + 3 User Songs Song Clear * Specifications and descriptions are for information Recording purposes only. Yamaha Corp. reserves the right to change or modify products or specifications at any time without • Song prior notice.
  • Page 4 (9) METRONOME button MEMORY buttons (26) DISK DRIVE • Rear Panel MIDI FOOT SWITCH PHONES/ DC IN 10 12V OUTPUT AC POWER ADAPTOR YAMAHA PA-5B/5C/51 (27) MIDI IN, OUT terminals (29) PHONES/OUTPUT jack (28) FOOT SWITCH jack (30) DC IN 10/12V jack...
  • Page 5 PSR-340 2NC-V362860 2...
  • Page 6 PSR-340 28CA1-8813435...
  • Page 7 PSR-340 Lower Case Assembly Remove the battery cover assembly. (Fig. 1) Remove the fourteen (14) screws marked [370] and the four (4) screws marked [380]. The lower case assembly can then be removed. (Fig. 1) (Fig.2) (Fig.1) Circuit Board and Unit After removing the lower case assembly, remove the following screws.
  • Page 8 PSR-340 Disassembling the Keyboard Assembly • KS0066U-10B (XV226A00) LCD DRIVER Remove the keyboard assembly. (See procedure 2.) Remove the twenty-one (21) screws marked [140], then • SED1278F0A (XV974A00) LCD DRIVER Remove the two (2) screws marked [30]. The MKS3 remove the black keys from the lower register. After- NAME FUNCTION NAME...
  • Page 9 PSR-340 HG73C205AFD (XU947C00) SW X00B TONE GENE RATOR • P IN P IN NAME FUNCTION NAME FUNCTION NO . NO . Initia l clear CMA3 Program ad dress bus RFC LKI PLL Clock CMA8 PLL Control CMA2 AVD D_PLL Power supply CR D re ad signal AVSS_PL L...
  • Page 10 PSR-340...
  • Page 11 PSR-340 • AM 2/3 (VR) Circuit Board • AM 1/3 Circuit Board MIDI FOOT SWITCH PHONES/OUTPUT DC-IN 10-12V to BATTERY to AM-CN801 to DM-CN601 to DM-CN501 to SPEAKER(L) Component side to FDD ASS’Y to AM3/3 (SW)-CN904 • AM 3/3 (SW) Circuit Board to DM-CN101 to INV-CN906 to AM-CN902...
  • Page 12 PSR-340 • DM Circuit Board to MKS3-CN1 Component side to LCD-CN703 to LCD-CN704 to PN-CN710 DM:2NA-V354960...
  • Page 13 PSR-340 • DM Circuit Board Pattern side DM:2NA-V354960 Note: See parts list for details of circuit board component parts.
  • Page 14 PSR-340 • LCD Circuit Board to DM-CN701 to DM-CN702 to PN-CN708 Component side • PN Circuit Board LCD:2NA-V354980 Component side PN: 2NA-V354990 to DM-CN707 to LCD-CN705 Note: See parts list for details of circuit board component parts.

  • Page 15: Test Program

    PSR-340 1. TEST PROGRAM A. PREPARATION 1) PA-3B (AC adaptor ) is used. (PA-32 or PA-3 is utilizable) 2) The volume is usually moved to the use position when no volume change is required. 3) Measuring instruments: Frequency counter Level meter (with a JIS-C filter) Note: Use a stereo plug and connect the 33 ohm load to the [PHONES/AUX OUT] jack.
  • Page 16 PSR-340 014:Output R Connect the level meter (with a JIS-C filter) to the [PHONES/AUX OUT] jack. (33 ohm load) Set the [MASTER VOLUME] at maximum. Check the output level (1 kHz). Phones L: Less than –45 dBm Phones R: -6 dBm +/- 2 dB 015:Output L Connect the level meter (with a JIS-C filter) to the [PHONES/AUX OUT] jack.
  • Page 17 PSR-340 2. INITIALIZE Except for the data listed below, all PSR-340 panel settings are reset to their initial settings whenever the power is turned on. The data listed below are backed up (i.e. retained in the memory) as long as either an AC adaptor is connected or a set of batteries is installed.
  • Page 18 PSR-340 [Portable Keyboard] Date: 1-Mar-1999 MIDI Implementation Chart Model: PSR-340 Version: 1.0 Function Transmitted Recognized Remarks Basic Default 1-16 1-16 Channel Changed 1-16 1-16 Default Mode Messages Altered ************** Note 0-127 0-127 Number : True voice ************** 0-127 Velocity Note ON O 9nH, v=1-127 O 9nH, v=1-127 Note OFF...
  • Page 19 Panel Voice List / Verzeichnis der Bedienfeld-Stimmen / Liste des voix de panneau / Lista de voces del panel MIDI MIDI Bank Select Bank Select Voice Voice Program Voice Name Program Voice Name Number Number Change# Change# PIANO Choir Aahs Grand Piano Choir Oohs Bright Piano...
  • Page 20 GM Voice List / Verzeichnis der GM-Stimmen / Liste des voix GM / Lista de voces GM MIDI MIDI Bank Select Bank Select Voice Voice Program Voice Name Program Voice Name Number Number Change# Change# PIANO Orchestra Hit Acoustic Grand Piano BRASS Bright Acoustic Piano Trumpet...
  • Page 21 MIDI MIDI Bank Select Bank Select Voice Voice Program Voice Name Program Voice Name Number Number Change# Change# Fiddle SOUND EFFECTS Shanai Guitar Fret Noise PERCUSSIVE Breath Noise Tinkle Bell Seashore Agogo Bird Tweet Steel Drums Telephone Ring Woodblock Helicopter Taiko Drum Applause Melodic Tom...

  • Page 22: Parts List

    PSR-340 PARTS LIST CONTENTS OVERALL ASSEMBLY ......... 2 KEYBOARD ASSEMBLY ........4 FLOPPY DISK DRIVE ASSEMBLY ...... 4 ELECTRICAL PARTS ........... 5 Note) DESTINATION ABBREVIATIONS A : Australian model M : South African model B : British model O : Chinese model C : Canadian model Q : South-east Asia model D : German model...
  • Page 23 PSR-340...
  • Page 24 PSR-340 DESCRIPTION REMARKS DESCRIPTION REMARKS PART NO. PART NO. REF NO. QTY RANK REF NO. RANK PSR-340 OVERALL ASSEMBLY U,W,C,O,J (V362860) Overall Assembly ACCESSORIES V3628200 Upper Case Assembly VU469500 Music Rest Upper Case (V362830) VU113800 AC Adaptor PA-5C J V3626600 SP Grille VY944500 AC Adaptor...
  • Page 25 PSR-340 * Refer to the CIRCUIT BOARD LAYOUT section of this manual regarding 160d,160e,160f,160g cables. PART NO. DESCRIPTION REMARKS PART NO. DESCRIPTION REMARKS QTY RANK REF NO. QTY RANK REF NO . KEYBOARD ASSEMBLY PSR-340 FLOPPY DISK DRIVE ASSEMBLY PSR-340 V2386100 Floppy Disk Drive Assembly (V447260) (V362610)
  • Page 26 PSR-340 DESCRIPTION REMARKS PART NO. QTY RANK REF NO. ELECTRICAL PARTS PSR-340 V3549700 Circuit Board (XV843C0) V3549600 Circuit Board (XV842B0) V3480900 Circuit Board (XV707C0) V3549800 Circuit Board (XW242A0) V3549900 Circuit Board (XW242A0) VV583800 Circuit Board MK-L (VV70110) VV583900 Circuit Board MK-H (VV70120) V2404900...

  • Page 27: Master Volume

    PSR-340 PART NO. DESCRIPTION REMARKS REF NO. QTY RANK Jumper Wire L608 VA078900 0.55 -610 VA078900 Jumper Wire 0.55 VB835000 Coil L801 FL5R200QNT L801 VF968800 Coil SBT-0260TF Coil L802 VB835000 FL5R200QNT L802 Coil VF968800 SBT-0260TF VA078900 Jumper Wire L803 0.55 L901 VA486800 Line Filter...
  • Page 28 PSR-340 DESCRIPTION REMARKS PART NO. QTY RANK REF NO. UR828100 C307 Electrolytic Cap. 100.00 10.0V VC694800 Semiconductive Cera. Cap. C501 25V Z UR818220 Electrolytic Cap. C502 220.00 6.3V UR837470 Electrolytic Cap. C503 47.00 16.0V FG613220 Ceramic Capacitor-B C504 2200P 50V K FG613220 C505 Ceramic Capacitor-B...
  • Page 29 PSR-340 DESCRIPTION REMARKS PART NO. QTY RANK REF NO. Coil L702 VB835000 FL5R200QNT VF968800 Coil L702 SBT-0260TF Carbon Resistor R101 HF457470 47.0K 1/4 J Carbon Resistor R102 HF455220 220.0 1/4 J R103 Carbon Resistor 10.0K 1/4 J HF457100 R104 Carbon Resistor 47.0 1/4 J HF454470 -108...

  • Page 30: Lcd Driver

    PSR-340 DESCRIPTION REMARKS PART NO. QTY RANK REF NO. FG613100 Ceramic Capacitor-B C710 1000P 50V K VI878600 Cable Holder CN703 51048 8P TE VI878800 Cable Holder CN704 51048 10P TE VI879000 Cable Holder CN705 51048 12P TE CN708 VK025600 Wire Trap 52147 12P TE CN710...
  • Page 31 PSR-340 : 28CC1-8813436 8 AM1/3 : 28CC1-8813436 8 AM2/3 (VR) :28CC1-8813436 8 AM3/3 (SW) :28CC1-8813436 8 : 28CC1-8813051 0...
  • Page 32 PSR-340 PN : 28CC1-8813437 1 LCD : 28CC1-8813437 1 MKS3 :28CC1-8812655 MK-L :28CC1-8811360 MK-H :28CC1-8811360...

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