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www.freeservicemanuals.info 3/24/2019 SERVICE MANUAL CONTENTS SPECIFICATIONS ................3 PANEL LAYOUT ................. 4 BLOCK DIAGRAM ................5 CIRCUIT BOARD LAYOUT & WIRING ..........6 DISASSEMBLY PROCEDURE ............7 LSI PIN DESCRIPTION ..............10 IC BLOCK DIAGRAM ............... 11 CIRCUIT BOARDS ................12 TEST PROGRAM ................
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PSR-170 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.
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Large multi-function LCD display (backlit) VL/CSA 6-8W, CE7.5W (when using PA-3B power adaptor) Setup Power supply STANDBY/ON Adaptor : Yamaha PA-3B AC power adaptor MASTER VOLUME : MINI-MAX Batteries : Six “D” size, R20P(LR20) or equivalent batteries Panel controls Dimensions Overall, SONG, VOICE, STYLE, DEMO, POTABLE 931 x 348.8 x 127.9 mm (36-2/3"...
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www.freeservicemanuals.info 3/24/2019 PSR-170 PANEL LAYOUT Top Panel GrandPno !3 !4 !5 !6 !7 q [MASTER VOLUME] dial !2 Numeric keypad, [+/ON] and [-/OFF] buttons w Power switch ([STANDBY/ON]) !3 [ACCOMPANIMENT ON/OFF] e LESSON [L] (Left) and [R] (Right) buttons ([A-B REPEAT]) button r [Dict.] (DICTIONARY) button !4 [SYNC START] ([ PAUSE]) button...
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www.freeservicemanuals.info 3/24/2019 Digitized in Heiloo the Netherlands Not for sale!
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www.freeservicemanuals.info 3/24/2019 PSR-170 CIRCUIT BOARD LAYOUT & WIRING Upper case side DM-LCD LCD Unit Speaker (R) Speaker (L) [WH105] [WH102] [C120] [WH203] [WH104] [WH103] [WH204] [WH201] PN-AM PN-AM [C120] [C130] Lower case side [M30] MK-L MK-H Location Part No. Connector Assembly Destination Remarks C120...
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www.freeservicemanuals.info 3/24/2019 PSR-170 DISASSEMBLY PROCEDURE Lower Case Assembly 1-2. Remove the seven (7) screws marked [250] and the five (5) screws marked [260]. The lower case (Time required : About 3 min.) assembly can then be removed. (Fig. 1) 1-1. Remove the battery cover assembly.
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www.freeservicemanuals.info 3/24/2019 PSR-170 PN-AM 1/2 Circuit Board PN-AM 2/2 Circuit Board (Time required : About 8 min.) (Time required : About 8 min.) 3-1. Remove the lower case assembly. (See procedure 1) 4-1. Remove the lower case assembly. (See procedure 1) 3-2.
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www.freeservicemanuals.info 3/24/2019 PSR-170 pushing the hooks of it and slide the black key White key and Black key towards you. (Photo 1) (Time required : About 10 min. each) 8-3. When removing the C6 key, remove a screw 8-1. Remove the lower case assembly. (See procedure 1) marked [110B] and then lift the back of C6 key 8-2.
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www.freeservicemanuals.info 3/24/2019 PSR-170 LSI PIN DESCRIPTION YMW728-F (XU355A00) GEW12 (AWM Tone Generator) DM-LCD : IC001 NAME FUNCTION NAME FUNCTION 51 DAC_Vdd Power supply Synch. signal Inicial Clear Port L Ground MA19 MA18 Memory address bus Power supply Power supply MA17 Port A Memory address bus MA10...
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www.freeservicemanuals.info 3/24/2019 PSR-170 S6A0069X10-Q0RJ (XV226A00) LCD DRIVER DM-LCD : IC006 NAME FUNCTION NAME FUNCTION Data interface Segment signal output for LCD driving Common signal output for LCD driving Ground OSC1 Oscillator OSC2 Oscillator Power supply CLK1 Data latch clock Segment signal output for LCD CLK2 Data shift clock driving...
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www.freeservicemanuals.info 3/24/2019 PSR-170 CIRCUIT BOARDS INDEX DM-LCD (XZ643B0) ................12 PN-AM 1/2 (XZ644B0) ................. 13 PN-AM 2/2 (XZ644B0) ................. 14 VR (XZ644B0) ..................14 DM-LCD Circuit Board to MK-L to PN-AM 1/2-CN102 to PN-AM 2/2-CN201 Component side Pattern side Note : See parts list for details of circuit board conponent parts. 2NA-V692510 2 Digitized in Heiloo the Netherlands Not for sale!
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www.freeservicemanuals.info 3/24/2019 PSR-170 PN-AM 1/2 Circuit Board PAUSE START/ REPEAT STOP ACMP SYNC START/ INTRO/ MAIN/ ON/OFF START STOP ENDING AUTO FULL LESSON LESSON STANDBY/ON OVERALL Dict. Component side PHONES/ DC IN 12V OUTPUT 2NA-V708340 4 Digitized in Heiloo the Netherlands Not for sale!
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www.freeservicemanuals.info 3/24/2019 PSR-170 PN-AM 2/2 Circuit Board MULTI PAD/DJ GAME DEMO STYLE VOICE –/OFF 0/RESET +/ON PORTABLE GRAND SONG METRONOME to SPEAKER R Component side SUSTAIN MIDI VR Circuit Board to PN-AM 1/2-CN105 CN106 MASTER VOLUME Component side PN-AM 2/2, VR : 2NA-V708340 4 Digitized in Heiloo the Netherlands Not for sale!
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www.freeservicemanuals.info 3/24/2019 PSR-170 TEST PROGRAM 1. PREPARATION 3. PROCEEDING THROUGH THE TEST 1) PA-3B or PA-3(AC adaptor) is used. PROGRAM 2) The volume is usually moved to the use position when 1) When the test program is started, “TEST” appears on the no volume change is required.
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www.freeservicemanuals.info 3/24/2019 PSR-170 TEST No. LCD (initial) Test Functions and Judgment Criteria [028] LCD On Check that all LCD dots are on. [029] LCD Off Check that all LCD dots are off. [031] PD1 Chk Connect the foot switch (FC-4 or FC-5) to the [SUSTAIN] jack. Check that the C3 note is output when the [START/STOP] button is pressed while stepping the pedal and the C4 note is output when releasing the pedal.
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www.freeservicemanuals.info 3/24/2019 PARTS LIST CONTENTS OVERALL ASSEMBLY ..........................2 KEYBOARD ASSEMBLY ......................... 4 ELECTRICAL PARTS ........................5 – 8 Notes : DESTINATION ABBREVIATIONS Australian model South African model British model Chinese model Canadian model South-east Asia model German model Taiwan model European model U.S.A.
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www.freeservicemanuals.info 3/24/2019 PSR-170 OVERALL ASSEMBLY Music Rest Lower Case Assembly LCD Unit C120 L110 L120 Keyboard Assembly L120 (See page 4.) C100 C110 C140 C130 C140 C100 120b C140 C140 120a Battery Cover Assembly Digitized in Heiloo the Netherlands Not for sale!
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www.freeservicemanuals.info 3/24/2019 PSR-170 PART NO. DESCRIPTION REMARKS REF NO. RANK OVERALL ASSEMBLY PSR-170 (V702380) V 7 0 2 4 0 0 0 Upper Case Speaker 12.0cm 4 ohm 3W XZ871A00 V 7 0 3 1 7 0 0 Panel Switch 3 DOME BLACK SONG,VOICE,STYLE V 7 2 0 2 3 0 0...
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www.freeservicemanuals.info 3/24/2019 PSR-170 KEYBOARD ASSEMBLY MK Circuit Board Assembly Lower Case PART NO. DESCRIPTION REMARKS REF NO. RANK KEYBOARD ASSEMBLY 16N C61 P1M PSR-170 (V709960) V34107A0 White Keys 16N CEGBDFA White Keys 16N CEGB (V341260) White Keys 16N DFA (V341270) V 4 7 6 0 3 0 0 White Key 16N C...
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www.freeservicemanuals.info 3/24/2019 PSR-170 ELECTRICAL PARTS PART NO. DESCRIPTION REMARKS REF NO. RANK ELECTRICAL PARTS PSR-170 V 6 9 2 5 2 0 0 Circuit Board DM-LCD (XZ643B0) Circuit Board MK-H 16N-1M (XT701A0) VZ272400 V 7 1 8 9 9 0 0 Circuit Board MK-L 16N-1M C61 P1 (XZ850C0)