Yamaha AX-396 Service Manual

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Manual is about: Digital Home Theater Component, Digital Sound Projector, Digital Audio Server, Digital Audio Terminal, Optional Speaker System, Plasma Display Monitor, Digital Cinema Projector, Digital Home Theatre Receiver, DVD Player, DVD Changer, Home Theatre Speaker

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AX-496/396

SERVICE MANUAL

STEREO AMPLIFIER

AX-496/396

1 0 0 7 0 2

■ CONTENTS

SPECIFICATIONS

.......................................................... 1

TO SERVICE PERSONNEL

.......................................... 2

REMOTE CONTROL PANEL

........................................ 2

IMPEDANCE SELECTOR

............................................. 2

FRONT PANELS

............................................................ 3

REAR PANELS

.............................................................. 3

INTERNAL VIEW

........................................................... 6

DISASSEMBLY PROCEDURES

................................... 6

ADJUSTMENTS

............................................................. 7

BLOCK DIAGRAM

......................................................... 8

-COM DATA

................................................................. 9

PRINTED CIRCUIT BOARD

.................................. 10~25

SCHEMATIC DIAGRAM

........................................ 26~29

PARTS LIST

........................................................... 30~47

REMOTE CONTROL TRANSMITTER

........................ 48

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.

WARNING:

Failure to follow appropriate service and safety procedures when servicing this product may result

in personal injury, destruction of expensive components, and failure of the product to perform as

specified. For these reasons, we advise all YAMAHA product owners that any service required

should be performed by an authorized YAMAHA Retailer or the appointed service representative.

IMPORTANT:

The presentation or sale of this manual to any individual or firm does not constitute authorization,

certification or recognition of any applicable technical capabilities, or establish a principle-agent

relationship of any form.

The data provided is believed to be accurate and applicable to the unit(s) indicated on the cover. The research,

engineering, and service departments of YAMAHA are continually striving to improve YAMAHA products.

Modifications are, therefore, inevitable and specifications are subject to change without notice or obligation to

retrofit. Should any discrepancy appear to exist, please contact the distributor's Service Division.

WARNING:

Static discharges can destroy expensive components. Discharge any static electricity your body

may have accumulated by grounding yourself to the ground buss in the unit (heavy gauge black

wires connect to this buss).

IMPORTANT:

Turn the unit OFF during disassembly and part replacement. Recheck all work before you apply

power to the unit.

AX-496/396

P.O.Box 1, Hamamatsu, Japan

1 2 3 4 5 6 7 Next › »

Summary of AX-396

Page 1
Ax-496/396 service manual stereo amplifier ax-496/396 1 0 0 7 0 2 ■ contents specifications .......................................................... 1 to service personnel .......................................... 2 remote control panel ........................................ 2 impedance selecto...
Page 2
Ax-496/396 1 435 (17-1/8") unit : mm (inch) 151 (5-15/16") 130 (5-1/8") 350 (13-3/4") 21 (13/16") 19.5 (3/4") 21.5 (7/8") 391 (15-3/8") ■ specifications ■ power section minimum rms output power 8 Ω, 20hz to 20khz, 0.019% thd ax-496 85w+85w ax-396 60w+60w maximum output power (eiaj) 1khz, 10% thd ax-...
Page 3
Ax-496/396 impedance selector warning: do not change the impedance selector switch setting while the power to this unit is on, otherwise this unit may be damaged. 2 tape standby/on deck a/b dir b dir a a/b/c/d/e preset cd/dvd md tape tuner aux rax9 v499920 phono – + cd tuner disc skip – + volume wal...
Page 4
Ax-496/396 3 ▼ax-496 ▼ax-396 ■ front panels ■ rear panels (ax-496) r model.
Page 5
Ax-496/396 4 b model g model t model ■ rear panels (ax-396) r model.
Page 6
Ax-496/396 5 b model g model a model j model.
Page 7
Ax-496/396 1 1 2 3 3 4 4 5 5 6 7 7 7 1 7 9 0 a 8 3 2 5 4 6 b 6 ■ disassembly procedures (remove parts in the order as numbered.) 1. Removal of top cover remove 4 screws (1) and 4 screws (2) in fig. 1. 2. Removal of front panel a. Remove 6 screws (3) in fig. 1. 3. Checking and parts replacement of ma...
Page 8
Ax-496/396 r553 r552 r560 r561 r553 (l ch) r561 (r ch) r552 (l ch) r560 (r ch) 0.1mv〜10mv cut ■ adjustments confirmation of idling current • right after power is switched on, confirm the voltages measures at r553 (l ch) and r561 (r ch) are between 0.1mv to 10mv. • if it exceeds 10mv, open (cut off) ...
Page 9
Ax-496/396 10db –10db phono cd sp a sp b phones tuner aux tape1 pb tape1 rec md pb md rec cd direct amp phono eq amp cd direct amp cd direct amp motor driver on on off off 31.8db m main vr 10db smu loudness balance tone control audio mute a b power amp rysp lb 15 –15 b –b lb 12s + + + + + + audio mu...
Page 10
Ax-496/396 no. Port i/o form re function 1 p53 i i 2 p17 i/o o cei chip enable (input selector) 3 p16 i/o o ck clock s-clk 4 p15 i/o o data data t x d 5 p14 i/o o 6 p13 i/o o tmo tape monitor 7 p12 i/o o vrup motor volume (up) 8 p11 i/o o vrdn motor volume (down) 9 p10 i/o o ryps power relay 10 p27 ...
Page 11
A b c d e f g h i j 1 2 3 4 5 6 7 ax-496/396 to function (7) t o function (6) hl e hr rysp a b e r e l e 15 -15 ye be be re re or or to main (6) impedance selector speakers to function (1) mu s12 gnd gnd r ysp r yps prps pri prd vrp vrg 11 ■ printed circuit board (foil side) 10 p.C.B. Main (3) ax-49...
Page 12
A b c d e f g h i j 1 2 3 4 5 7 ax-496/396 6 power to main p.C.B. (2) power transformer to main (2) gy br power transformer to main (1) re or be ye be re or power transformer to main (2) to main (4) gy br br wh ye re or re wh re ye re br or to main (5) to main (9) to main (1) to main (8) (b, g model...
Page 13
A b c d e f g h i j 1 2 3 4 5 6 7 ax-496/396 rec out input volume cd/dvd direct amp pure direct 1 42 22 21 tlo e tro -15 tli 15 tri e l e r ce d ata cl -15 l e r 15 cddl e cddr cdm vrg vrp pro pri prps ryps rysp dg dg s12 mu lsby ph tu cd md ta au 5v rem dg ps gnd cd-d tpmled p-d/5v to function (11)...
Page 14
A b c d e f g h i j 1 2 3 4 5 7 ax-496/396 6 cd/dvd direct amp pure direct to function (1) gnd cd-d tpmled p-d/5v power to function (8) lsby 5v standby/on ps dg rem 5v to function (8) phono tuner cd/dvd tape md aux to function (1) to function (10) to function (9) lsby ph tu cd md ta au 5v rem dg ps ...
Page 15
A b c d e f g h i j 1 2 3 4 5 6 7 ax-496/396 impedance selector speakers to function (7) t o function (6) hl e hr rysp a b e r e l e 15 -15 ye re re or or to main (6) to function (1) mu s12 gnd gnd r ysp r yps prps pri prd vrp vrg ■ printed circuit board (foil side) p.C.B. Main (3) ax-396 p.C.B. Mai...
Page 16
A b c d e f g h i j 1 2 3 4 5 7 ax-496/396 6 to main (9) to main (1) to main (8) (a, b, g models) to main (5) (r model) a c outlets e +12 ry p s gy br wh be power to main p.C.B. (2) power transformer to main (2) gy br power transformer to main (1) re or bl or re power transformer to main (2) to main...
Page 17
A b c d e f g h i j 1 2 3 4 5 6 7 ax-496/396 input volume cd/dvd direct amp 1 42 22 21 tlo e tro -15 tli 15 tri e l e r ce d ata cl -15 l e r 15 cddl e cddr cdm vrg vrp pro pri prps ryps rysp dg dg s12 mu lsby ph tu cd md ta au 5v rem dg ps gnd cd-d tpmled p-d/5v to function (11) to function (6) to ...
Page 18
A b c d e f g h i j 1 2 3 4 5 7 ax-496/396 6 tape monitor to function (2) power to function (8) lsby 5v phono tuner cd/dvd tape md aux to function (1) to function (10) to function (9) lsby ph tu cd md ta au 5v rem dg ps lsby 5v ps dg rem 5v cd/dvd direct amp tape monitor to function (1) gnd cd-d tpm...
Page 19
A 1 2 3 4 5 6 7 8 9 b c d e f g h i j k l ax-496 ★ all voltage are measured with a 10m w /v dc electric volt meter. ★ components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally installed. ★ schematic diagram is subject to ch...
Page 20
A 1 2 3 4 5 6 7 8 9 b c d e f g h i j k l schematic diagram 27 ax-496 pin connection diagram of transistors, diodes and ics. Bc e 2sa1695 2sc4466 2sa1145 2sa970 2sc2705 2sc1815 2sa1015 2sc2240 2sa893a 2sc1890a s4vb20 2sa1358 2sc4488 2sd1915f 2sc1740s dtc144es 2sa933s e e c c b b e c b + – ~ ~ e c b ...
Page 21
A 1 2 3 4 5 6 7 8 9 b c d e f g h i j k l ax-396 28 schematic diagram pin connection diagram of transistors, diodes and ics. Bc e 2sa1695 2sc4466 2sa1145 2sa970 2sc2705 2sc1815 2sa1015 2sc2240 2sa893a 2sc1890a s4vb20 2sa1358 2sc4488 2sd1915f 2sc1740s dtc144es 2sa933s e e c c b b e c b + – ~ ~ e c b ...
Page 22
A 1 2 3 4 5 6 7 8 9 b c d e f g h i j k l schematic diagram 29 ax-396 pin connection diagram of transistors, diodes and ics. Bc e 2sa1695 2sc4466 2sa1145 2sa970 2sc2705 2sc1815 2sa1015 2sc2240 2sa893a 2sc1890a s4vb20 2sa1358 2sc4488 2sd1915f 2sc1740s dtc144es 2sa933s e e c c b b e c b + – ~ ~ e c b ...
Page 23: Parts List
Ax-496/396 30 ■ warning components having special characteristics are marked s and must be replaced with parts having specifications equal to those originally in- stalled. ● carbon resistors (1/6w or 1/4w) are not included in the electrical parts list. For the parts no. Of the carbon resistors, refe...
Page 24: Ax-496
Ax-496/396 31 * v5012200 p.C.B. Main(rt) * v5012300 p.C.B. Main(b) * v5012400 p.C.B. Main(g) cb501 vi878900 cn.Bs.Pin 11p 01 cb502 vi878400 cn.Bs.Pin 6p cb503 vk024700 cn.Bs.Pin 3p 01 cb504 vi878100 cn.Bs.Pin 3p 01 cb505 vp206500 holder.Fus eyf-52bc(g) 01 s cb506 vg879900 cn.Bs.Pin 2p 01 cb507 vp206...
Page 25: Ax-496
Ax-496/396 32 q516 ia097030 tr 2sa970 gr,bl 01 q517 ia097030 tr 2sa970 gr,bl 01 * s q518 ve198700 tr 2sa1145 o,y 01 q519 ic224030 tr 2sc2240 gr,bl 01 s q520 ip011600 tr.Pair 2sa1358,c3421 o,y 02 # s q521 vv857800 tr.Pair 2sa1492,c3856 opy 05 s q522 vk432900 tr 2sd1915f s,t 01 s q525 ip011600 tr.Pair...
Page 26: Ax-496
Ax-496/396 33 c143 ur838100 c.El 100uf 16v 01 c144 ur838100 c.El 100uf 16v 01 c145 vj599100 c.Ce.Tublr 0.1uf 50v 01 c146 un866100 c.El 1uf 50v c147 ua953220 c.Mylar 2200pf 50v 01 c148 ua953220 c.Mylar 2200pf 50v 01 c149 vg278900 c.Ce.Tublr 680pf 50v 01 * c150 ua954560 c.Mylar 0.056uf 50v * c151 ua95...
Page 27: Ax-496
Ax-496/396 34 sw108 vv523900 sw.Push pbs-ym-001 u101 vu591000 l.Dtct gp1u271x * vr101 v4915000 vr.Mtr a100k Ω vr103 vp700700 vr a100k Ω vr105 vp742000 vr mn100k Ω 03 vr106 vp741800 vr b20k Ω 03 vr107 vp741900 vr g25k Ω 03 xl101 ve906000 rsnr.Ce 4mhz 02 ax-496 schm ref. Part no. Description rank ✻ ne...
Page 28: Ax-396
Ax-496/396 35 ax-396 * v5011700 p.C.B. Main(j) * v5011800 p.C.B. Main(r) * v5011900 p.C.B. Main(a) * v5012000 p.C.B. Main(b) * v5012100 p.C.B. Main(g) cb501 vi878900 cn.Bs.Pin 11p 01 cb502 vi878400 cn.Bs.Pin 6p cb503 vk024700 cn.Bs.Pin 3p 01 cb504 vi878100 cn.Bs.Pin 3p 01 cb505 vp206500 holder.Fus e...
Page 29: Ax-396
Ax-496/396 36 ax-396 q513 ic1815i0 tr 2sc1815 y 01 s q514 ia1015i0 tr 2sa1015 y 01 * s q515 ve198800 tr 2sc2705 o,y 01 q516 ia097030 tr 2sa970 gr,bl 01 q517 ia097030 tr 2sa970 gr,bl 01 * s q518 ve198700 tr 2sa1145 o,y 01 q519 ic224030 tr 2sc2240 gr,bl 01 s q520 ip011600 tr.Pair 2sa1358,c3421 o,y 02 ...
Page 30: Ax-396
Ax-496/396 37 ax-396 c130 vg287200 c.El 10uf 50v 01 c131 vg287600 c.El 100uf 25v 01 c132 vg287800 c.El 330uf 16v 01 c133 vg287800 c.El 330uf 16v 01 c134 vg287600 c.El 100uf 25v 01 c135 vi715900 c.Mylar 2200pf 50v 01 c136 vg287600 c.El 100uf 25v 01 c137 vg287600 c.El 100uf 25v 01 c138 vi715900 c.Myla...
Page 31: Ax-396
Ax-496/396 38 ax-396 q104 vg722000 tr.Dgt dtc144es 03 q105 ic1815i0 tr 2sc1815 y 01 q106 ia1015i0 tr 2sa1015 y 01 q107 vp872700 tr 2sc4488 s,t q108 ia093320 tr 2sa933s q,r q109 ia1015i0 tr 2sa1015 y 01 q110 vk432900 tr 2sd1915f s,t 01 q111 ic1815i0 tr 2sc1815 y 01 q112 ic1815i0 tr 2sc1815 y 01 r151 ...
Page 32: Ax-496
Ax-496/396 3-1-4 3-1-3 1-1 2-31 2-40 2-40 2-40 2-40 2-40 2-40 2-41 1-2 1-2 1-3 1-4 1-4 1-5 2-1-1 2-1-1 2-1-5 2-1-4 2-1-6 2-1-7 3-1-1 3-1-2 3-2-4 3-2-3 3-2-2 200-1 3-2-1 3-1-3 2-1-7 2-1-5 2-1-5 2-1-6 2-1-4 3-10 3-30 3-30 3-30 3-30 3-11 3-41 3-41 3-42 3-40 3-40 3-40 3-42 3-42 3-16 3-43 3-40 3-13 3-14 ...
Page 33: Ax-496
Ax-496/396 40 ■ mechanical parts * 1- 1 v4595400 front panel bl * 1- 1 v4595500 front panel ti * 1- 1 v4595600 front panel gd * 1- 2 v4598400 escutchon, 5/22 bl * 1- 3 v4598800 lens, 6p * 1- 4 v4598900 lens, 1p 1- 5 vv185700 lens, filter 7x24 # s 2-1-1 vv857800 pair transistor 2sa1492/c3856 opy q521...
Page 34: Ax-496
Ax-496/396 41 ✻ new parts ref. No. Part no. Description remarks markets ax-496 * s 8 xy163a00 power transformer bl (rt) 10 v2438700 cord stopper ’10p1 s 12 vn363700 power cord ass’y (g) s 12 vv437300 power cord ass’y (b) s 12 vz542500 power cord ass’y (rt) 18 vu590000 binding tie cbtd001b 101 vv1213...
Page 35: Ax-496
Ax-496/396 42 ✻ new parts ref. No. Part no. Description remarks markets ax-496 158 ep600830 bind head b-tite screw 3x8 fcrm3-bl 160 vt669300 pw head b-tite screw 3x8-8 mfc2 161 vt669400 pw head b-tite screw 3x15-8 mfc2 168 v2728500 bind head s-tite screw 4x7 mfzn2-bl 169 ep600250 bind head b-tite sc...
Page 36: Ax-396
Ax-496/396 3-1-4 3-1-3 1-1 2-31 2-40 2-40 2-40 2-40 2-40 2-40 2-41 1-2 1-3 1-4 1-2 1-4 1-4 1-5 2-2-1 2-2-1 2-2-5 2-2-4 2-2-6 2-2-7 3-1-1 3-1-2 3-2-4 3-2-3 3-2-2 200-1 3-2-1 3-1-3 2-2-7 2-2-5 2-2-5 2-2-6 2-2-4 3-10 3-30 3-30 3-30 3-30 3-11 3-41 3-41 3-42 3-40 3-40 3-40 3-42 3-42 3-16 3-43 3-40 3-13 3...
Page 37: Ax-396
Ax-496/396 ✻ new parts ref. No. Part no. Description remarks markets rank 44 ax-396 * 1- 1 v4595700 front panel bl * 1- 1 v4595900 front panel ti * 1- 1 v4596000 front panel gd * 1- 2 v4598400 escutchon, 5/22 bl * 1- 3 v4598800 lens, 6p * 1- 4 v4598900 lens, 1p 1- 5 vv185700 lens, filter 7x24 # s 2-...
Page 38: Ax-396
Ax-496/396 45 ✻ new parts ref. No. Part no. Description remarks markets rank ax-396 * 5 v5011900 p.C.B. Ass’y main (a) * 5 v5012000 p.C.B. Ass’y main (b) * 5 v5012100 p.C.B. Ass’y main (g) * 6 v5012500 p.C.B. Ass’y function * s 8 xu441b00 power transformer (j) * s 8 xu442c00 power transformer (r) s ...
Page 39: Ax-396
Ax-496/396 46 ✻ new parts ref. No. Part no. Description remarks markets rank ax-396 * 133 v4597600 plate side l gd * 134 v4597700 plate side r bl * 134 v4597800 plate side r ti * 134 v4597900 plate side r gd 135 vq368500 push rivet p3545-b 01 142 vu984400 ring d14 * 145 v5247600 damper 155 aa627310 ...
Page 40
Ax-496/396 47 10mm hj35 1/4w type 5mm hf85 1/6w type hf45 1/4w type value 1/4w type part no. 1/6w type part no. 10 k Ω hf45 7100 hf45 7100 11 k Ω hf45 7110 hf45 7110 12 k Ω hj35 7120 hf85 7120 13 k Ω hf45 7130 hf45 7130 15 k Ω hf45 7150 hf45 7150 18 k Ω hf45 7180 hf45 7180 22 k Ω hf45 7220 hf45 7220...
Page 41
Ax-496/396 01 02 03 04 05 06 07 08 09 10 20 19 18 17 16 15 14 13 12 11 u1 jt7060-2 r1 1 ir-led r2 180 vcc vcc 3v q1 2sd1781k c1 47uf/16v x1 3.64mhz r3 200k 00 08 10 18 15 03 01 0d 11 19 16 02 0a 12 04 0c 14 1a 06 09 07 17 1f 0b 1b 4f 40 function hex custom data play (tape) 7a 00 rewind (tape) 7a 01 ...
Page 42: Ax-396/496
Ax-396/496.