Yamaha Clavinova CLP-265GP User manual

SERVICE MANUAL
HAMAMATSU, JAPAN
CL 001772
CONTENTS
SPECIFICATIONS .................................................................... 3
PANEL LAYOUT ........................................................................ 4
DISASSEMBLY PROCEDURE ................................................. 5
LSI PIN DESCRIPTION .......................................................... 17
IC BLOCK DIAGRAM.............................................................. 20
CIRCUIT BOARDS ................................................................. 21
INSPECTIONS ........................................................................ 38
DATA BACKUP........................................................................ 43
MIDI IMPLEMENTATION CHART ........................................... 47
MIDI DATA FORMAT ............................................................... 48
PARTS LIST
BLOCK DIAGRAM
CIRCUIT BOARD LAYOUT & WIRING
OVERALL CIRCUIT DIAGRAM
www.electronicsrepair.net

2
CLP-265GP
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON
WHAT SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose eyes to
solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling food.
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: Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to
this bus.)
IMPORTANT:
Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to
the unit.
Components having special characteristics are marked and must be replaced with parts having specification equal to those
originally installed.
WARNING
IMPORTANT NOTICE FOR THE UNITED KINGDOM
Connecting the Plug and Cord
IMPORTANT:
The wires in this mains lead are coloured in accordance with the following code:
BLUE : NEUTRAL
BROWN : LIVE
As the colours of the wires in the mains lead of this apparatus may not correspond with the coloured makings identifying the terminals in
your plug proceed as follows:
The wire which is coloured BLUE must be connected to the terminal which is marked with the letter N or coloured BLACK.
The wire which is coloured BROWN must be connected to the terminal which is marked with the letter L or coloured RED.
Making sure that neither core is connected to the earth terminal of the three pin plug.
• This applies only products distributed by Yamaha-Kemble music (U.K.) Ltd. (2 wires)

3
CLP-265GP
■ SPECIFICATIONS
Keyboard GH3 keyboard 88 keys (A-1 - C7)
Sound Source AWM Stereo Sampling
Polyphony (Max.) 64
Voice Selection 14
Effect Reverb, Effect, Brilliance
Volume Master Volume
Controls Dual, Metronome, Transpose, Touch (Hard/Medium/Soft/Fixed), Functions
Recording/Playback 2-part recording/playback (three user songs), Tempo Adjustment, Sync Start
Pedal Damper (with half-pedal effect), Sostenute, Soft
Demo Songs 14 voice Demo Songs, 50 preset Songs
Jacks/Connectors MIDI (IN/OUT/THRU), PHONES X 2, AUX IN(L/L+R, R), AUX OUT (LEVEL, FIXED) (L, R)
USB TO HOST
Memory Device Internal Flash Memoy (for saving User songs):65KB
(for saving External songs): 307KB
Main Amplifiers 40W x 2
Speakers 16cm x 2 + 3cm x 2
Dimensions (W x D x H) 1,434mm x 1146mm x 931mm
[56 1/2'' x 45 1/8'' x 36 2/3'']
(Lid up) (1,434mm x 1146mm x 1,400mm)
[56 1/2'' x 45 1/8'' x 55 1/8'']
Weight 97kg (213lbs., 14oz)
Accessories Owner's Manual, "50 greats for the Piano" (Music Book), Accessory CD-ROM for Windows
Accessory CD-ROM for Windows Installation Guide
Bench (included or optional depending on locale)

4
CLP-265GP
■ PANEL LAYOUT
MAX
MIN
MASTER V O LUME DE
M O
ON
TRANSPOSE
LEFT RIGHT
S O NG SELE C T
PLAY / PAU SESTOP
REC
SONG
SYNC START
METR O N O ME
ON / OFF
TEMP O / FUNCTI O N #
TEMP O / O THER VALUE
USER
PRESET
TEMP O
FUN C TI O N #
+
/ YES
—
/ N O
BRILLIAN C E
BRIGHT
N
O RMAL
MELL
O W
REVERB
HALL 1
R OO M
HALL 2
STAGE
EFFECT
PHASER
CH O RUS
TREM
O L O
R
O TA RY SP
TOUCH
HARD
MEDIUM
S
O FT
STRINGS
2
VIBRA-
PH
O NE
HARPSI-
CH ORD 2
HARPSI-
CH
O RD 1
CH
O IR GUITAR
E.PIAN
O
2
E.PIAN
O
1
GRAND
PI ANO 1
CHURCH
ORGAN 1 CHURCH
ORGAN 2
GRAND
PIAN
O 2
JAZZ
O RGAN STRINGS
1
V O ICE
CLP-265GP
wer y !0
tui
q
o!1
!2 !3 !4 !5
@1
!6 !7
!8 !9
@0
q[POWER] switch
w[MASTER VOLUME] slider
e[DEMO] button
r[TRANSPOSE] button
t[REC] button
y[RIGHT],[LEFT] buttons
u[PLAY/PAUSE],[STOP] buttons
i[SONG SELECT] button
o[TEMPO/FUNCTION#] button
!0 [METRONOME] button
!1 Display
!2 [
- /NO],[+/YES] buttons
!3 Vo ice group buttons
!4 [BRILLIANCE],[REVERB],[EFFECT] buttons
!5 [TOUCH] button
!6 AUX OUT [L][R] (LEVEL FIXD) jacks 
!7 AUX IN [L/L+R] [R] jacks
!8 USB [TO HOST] terminal
!9 MIDI [IN][OUT][THRU] terminals
@0 [PHONES] jacks
@1 PEDALS

5
CLP-265GP
1. Music Rest Assembly
(Time required: About 1 minute)
1-1 Remove the four (4) screws marked [S13]. The music
rest assembly can then be removed. (Fig.1)
■DISASSEMBLY PROCEDURE
[S12]: Bind Head Screw 4.0X14 MFZN2B3 (WE983100)
[S13]: Bind Head Tapping Screw-1 3.0X16 MFZN2B3 (WE971200)
(Fig.1)
[S12]
[S13]
[S12]
[S13]
Support Bar Assembly
Music Rest Assembly
Key Cover Assembly
Top Board Assembly (L)
Top Board Assembly (S)
Removal of the hinge shaft
Hinge Shafts
Remove the two (2) hinge
shafts one by one.
(Fig.2)
[S23]
Hinge Shafts
Top Board Assembly (L)
Support Bar Assembly
Support Bar Angle Assembly
[S14]
[S25]
(Fig.3)
[S14]: Bind Head Screw 5.0X50 MFZN2B3 (WJ346900)
[S23]: Bind Head Tapping Screw-1 3.5X16 MFZN2B3 (WE955100)
[S25]: Nut Hex Cap #3 M5 MFZN2B3 (WJ347000)
2. Top Board Assembly (L)
(Time required: About 3 minutes)
2-1 Remove the two (2) hinge shafts. The top board
assembly (L) can then be removed. (Fig.2, Fig.3)
3. Top Board Assembly (S)
(Time required: About 5 minutes)
*Before disassembling the top board assembly (S), shut up
the key cover assembly completely to protect the key
cover assembly from being scratched.
3-1Remove the top board assembly (L) . (See procedure 2.)
3-2 Remove the two (2) screws marked [S12]. (Fig.1)
3-3 Slide the top board assembly (S) forward and lift it.

6
CLP-265GP
PJK
EQ
NET1
FU60
AJACK
DJACK
Jack Assembly
PK Connector
DM
MA80S
FU60
MA80S
MA80S Assembly
Power Transformer FU60 Assembly
MA Cover Assembly FU Cover
[S01A] [S03] [S02A] [S02B]
[71] [71]
[S01B] [S01D] [S08]
[S21]
[107A]
[107B]
[S01C]
: U model only
U model only
(Fig.4)
[S01A-D]: Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900)
[S02A,B]: Bind Head Tapping Screw-1 3.5X20 MFZN2W3 (WE971500)
[S03]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
[S08]: Bind Head Screw 4.0X18 MFZN2-W3 (WG402400)
[S21]: Flat Washer 4.0X12X1.0 MFZN2W3 (WF578800)
[71]: Spacer (CB040950)
[107A,B]: Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900)
Circuit board and Assembly Ref.No. Screw QTY Fig.
DM S03 Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300) 4 4
EQ S02A Bind Head Tapping Screw-1 3.5X20 MFZN2W3 (WE971500) 4 4
71 (*1) Spacer (CB040950) 4 4
NET1 S02B Bind Head Tapping Screw-1 3.5X20 MFZN2W3 (WE971500) 4 4
71 (*1) Spacer (CB040950) 4 4
MA Cover Assembly 107A Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900) 2 4
(U model only) (*2)
MA80S Assembly S01D Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900) 2 4
FU Cover (U model only) 107B(*2) Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900) 2 4
FU60 Assembly S01C Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900) 2 4
Jack Assembly S01A Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900) 4 4
PK Connector S01B Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900) 2 4
Power Transformer S08 Bind Head Screw 4.0X18 MFZN2-W3 (WG402400) 4 4
S21(*2) Flat Washer 4.0X12X1.0 MFZN2W3(WF578800) 4 4
*1: Do not lose the spacers marked [71] while disassembling.
*2: These parts are used for U model only.
(Table 1)

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CLP-265GP
4. Circuit Boards & Assemblies (Main Unit)
(Time required: About 6 minutes each)
4-1 Remove the top board assembly (L) . (See procedure 2.)
4-2 Remove the top board assembly (S). (See procedure 3.)
4-3 Each circuit board and assembly can be removed by
removing its fixing screws as shown in table1. (Fig.4, Table 1)
5. Key Cover Assembly
(Time required: About 6 minutes)
5-1 Remove the top board assembly (L) . (See procedure 2.)
5-2 Remove the top board assembly (S). (See procedure 3.)
5-3 Remove the screw marked [S03] for each side.
The rack covers L and R can then be removed. (Fig.5)
5-4 Set both ends of the rod to the slits of the rack and then
lift the rear portion of the key cover assembly. (Fig.6)
5-5 Lean the key cover assembly slightly, and remove the
guide pins from the guide rail. At that time, it is noted
not to damage the side cover. (Fig.6)
*When assembling, be sure not to make scratches on the
side cover assembly.
*When assembling, set both ends of the rod to the slits of
the rack accurately.
Rack Cover L[S03]
Key Cover Assembly
(Fig.5)
[S03]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
Key Cover Assembly
Arm Assembly
Key Cover Assembly
6. AJACK & DJACK Circuit Boards
(Time required: About 7 minutes)
6-1 Remove the top board assembly (L) . (See procedure 2.)
6-2 Remove the top board assembly (S). (See procedure 3.)
6-3 Remove the jack assembly. (See procedure 4.)
6-4 AJACK Circuit Board
6-4-1 Remove the screw marked [4A]. (Fig.7)
6-4-2 Remove the two (2) hexagonal nuts marked [6] and the
two (2) washers marked [5]. (Fig.7)
6-4-3 Remove the two (2) screws marked [7A]. The AJACK
circuit board can then be removed from the jack
assembly. (Fig.7)
6-5 DJACK Circuit Board
6-5-1 Remove the three (3) screws marked [4B]. (Fig.7)
6-5-2 Remove the two (2) screws marked [7B]. The DJACK
circuit board can then be removed from the jack
assembly. (Fig.7)
7. MA80S Circuit Board
(Time required: About 8 minutes)
7-1 Remove the top board assembly (L) . (See procedure 2.)
7-2 Remove the top board assembly (S). (See procedure 3.)
7-3 Remove the MA cover. (U model only)(See procedure 4.)
7-4 Remove the MA80S assembly. (See procedure 4.)
7-5 Remove the five (5) screws marked [1], the three (3)
screws marked [2] and the screw marked [3]. The
MA80S circuit board can then be removed from the
MA80S assembly. (Fig.8)
(Fig.6)
Jack Assembly
AJACK
DJACK
[4A] [5][6]
[7A] [7A]
[4B]
[7B] [7B]
(Fig.7)
[4A,B]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)
[5]: Washer BLACK (VJ869400)
[6]: Special Nut M12X14X2 P=1.0 (WF559900)
[7A,B]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)

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CLP-265GP
PK-LF Cable
PJK
<Bottom view>
[41c]
[41c]
PK Connector
<Bottom view> <Front view>
PJK
(Fig.10)
(Fig.11)
[41c]: Bind Head Tapping Screw-B 3.0X8 MFZN2B3 (WE774400)
8. FU60 Circuit Board
(Time required: About 7 minutes)
8-1 Remove the top board assembly (L) . (See procedure 2.)
8-2 Remove the top board assembly (S). (See procedure 3.)
8-3 Remove the FU cover. (U model only)(See procedure 4.)
8-4 Remove the FU60 assembly. (See procedure 4.)
8-5 Remove the two (2) screws marked [4] and the two (2)
nuts marked [5]. (N model only) (Fig.9)
8-6 Remove the two (2) screws marked [1] and the two (2)
screws marked [6]. The FU60 circuit board can then be
removed from the FU60 assembly. (Fig.9)
9. PJK Circuit Board
(Time required: About 7 minutes)
9-1 Remove the top board assembly (L) . (See procedure 2.)
9-2 Remove the top board assembly (S). (See procedure 3.)
9-3 Disconnect the PK-LF cable. (Fig.10)
9-4 Remove the PK connector. (See procedure 4.)
9-5 Remove the two (2) screws marked [41c]. The PJK
circuit board can then be removed from the PK
connector. (Fig.11)
[6] [6]
[5]
[4] [1]
FU60
N model only
(Fig.9)
[1]: Bind Head Tapping Screw-B 3.0X8 MFZN2B3 (WE774400)
[4]: Bind Head Screw 3.0X10 MFZN2B3 (WF304400)
[5]: Hexagonal Nut M3 (WF559800)
[6]: Bind Head Tapping Screw-B 3.0X12 MFZN2W3 (WE987400)
[2] [2] [2][3]
[1]
[1] [1]
MA80S
(Fig.8)
[1]: Bind Head Tapping Screw-B 4.0X8 MFZN2W3 (WE974600)
[2]: Bind Head Tapping Screw-B 3.0X10 MFZN2W3 (WE774200)
[3]: Bind Head Tapping Screw-B 3.0X16 MFZN2W3 (WE973400)
10. Panel Assembly
(Time required: About 8 minutes)
10-1 Remove the top board assembly (L) . (See procedure 2.)
10-2 Remove the top board assembly (S). (See procedure 3.)
10-3 Remove the key cover assembly. (See procedure 5.)
10-4 Remove the two (2) screws marked [S10] and the six (6)
screws marked [S01]. The panel assembly can then be
removed. (Fig.12)
11. PNL, PNR, MV Circuit Boards (Panel As-
sembly)
(Time required: About 10 minutes)
11-1 Remove the top board assembly (L) . (See procedure 2.)
11-2 Remove the top board assembly (S). (See procedure 3.)
11-3 Remove the key cover assembly. (See procedure 5.)
11-4 Remove the panel assembly. (See procedure 10.)
11-5 PNL Circuit Board
11-5-1 Remove the two (2) screws marked [50B]. The panel
holder assembly can then be removed. (Fig.13)
11-5-2 Remove the ten (10) screws marked [50E]. The PNL
circuit board can then be removed. (Fig.13)
11-6 PNR Circuit Board
11-6-1 Remove the two (2) screws marked [50C]. The panel
holder assembly can then be removed. (Fig.13)
11-6-2 Remove the eight (8) screws marked [50F]. The PNR
circuit board can then be removed. (Fig.13)

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CLP-265GP
11-7 MV Circuit Board
11-7-1 Remove the slide knob (MASTER VOLUME). (Fig.12)
11-7-2 Remove the two (2) screws marked [50A]. The panel
holder assembly can then be removed. (Fig.13)
11-7-3 Remove the four (4) screws marked [50D]. The MV
circuit board can then be removed. (Fig.13)
*When assembling each circuit board, confirm the LED
heads have gone into the panel holes correctly.
12. End Block Assembly (L,R)
(Time required: About 9 minutes each)
12-1 Remove the top board assembly (L) . (See procedure 2.)
12-2 Remove the top board assembly (S). (See procedure 3.)
12-3 Remove the key cover assembly. (See procedure 5.)
12-4 Remove the panel assembly. (See procedure 10.)
12-5 Remove the screw marked [S11] and the washer marked
[S22] for each side. The end block assemblies L and R
can then be removed. (Fig.12, Fig.14)
Panel Assembly
[S01] [S10][S10]
Slide Knob
( MASTER VOLUME )
End Block Assembly L End Block Assembly R
[S11][S22] [S11][S22]
[S01]: Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900)
[S10]: Bind Head Tapping Screw-B 4.0X10 MFZN2W3 (WE974500)
[S11]: Bind Head Tapping Screw-B 4.0X20 MFZN2W3 (WH513800)
[S22]: Flat Washer 4.0X8X0.8 MFZN2W3 (WF578600)
13. Power Switch Assembly
(Time required: About 10 minutes)
13-1 Remove the top board assembly (L) . (See procedure 2.)
13-2 Remove the top board assembly (S). (See procedure 3.)
13-3 Remove the key cover assembly. (See procedure 5.)
13-4 Remove the panel assembly. (See procedure 10.)
13-5 Remove the end block assembly R. (See procedure 12.)
13-6 Remove the two (2) screws marked [8]. The power
switch assembly can then be removed. (Fig.14)
14. HP Jack Assembly, HP Circuit Board
(Time required: About 10 minutes)
14-1 Remove the top board assembly (L) . (See procedure 2.)
14-2 Remove the top board assembly (S). (See procedure 3.)
14-3 Remove the key cover assembly. (See procedure 5.)
14-4 Remove the panel assembly. (See procedure 10.)
14-5 Remove the end block assembly L. (See procedure 12.)
14-6 Remove the three (3) screws marked [S01]. The HP jack
assembly can then be removed. (Fig.14)
14-7 Remove the two (2) nuts marked [3]. The HP circuit
board can then be removed from the HP jack assembly.
(Fig.14)
(Fig.12)
MV
PNL PNR
[50B] [50C]
[50A]
Panel Holder Assembly
[50D] [50E] [50F]
(Fig.13)
[50A-F]: Bind Head Tapping Screw-B 3.0X8 MFZN2W3 (WE774300)

10
CLP-265GP
15. Keyboard Assembly
(Time required: About 11 minutes)
15-1 Remove the top board assembly (L) . (See procedure 2.)
15-2 Remove the top board assembly (S). (See procedure 3.)
15-3 Remove the key cover assembly. (See procedure 5.)
15-4 Remove the panel assembly. (See procedure 10.)
15-5 Remove the end block assemblies L and R.
(See procedure 12.)
15-6 Remove the two (2) screws marked [S05] and the seven
(7) screws marked [S04]. (Fig.15)
15-7 Move the keyboard assembly backward, hold the central
area of it, and get it upright to remove. (Fig.16)
*Holding both side ends of the keyboard assembly may
twist and damage the frame.
*When assembling the keyboard assembly to the main
unit, tighten the screws marked [S05] and the screws
marked [S04] in this order. (Fig.15)
[S11] [S22]
[S01]
End Block Assembly L[S22] [S11]End Block Assembly R
[8]
[3] Power Switch Assembly
HP
16. PL Circuit Board
(Time required: About 12 minutes)
16-1 Remove the top board assembly (L) . (See procedure 2.)
16-2 Remove the top board assembly (S). (See procedure 3.)
16-3 Remove the key cover assembly. (See procedure 5.)
16-4 Remove the panel assembly. (See procedure 10.)
16-5 Remove the end block assemblies L and R. (See
procedure 12.)
16-6 Remove the keyboard assembly. (See procedure 15.)
16-7 Remove the screw marked [7]. The PL circuit board can
then be removed. (Fig.15)
17. Support Bar Assembly
(Time required: About 4 minutes)
17-1 Remove the top board assembly (L). (See procedure 2.)
17-2 Remove the screw marked [S14] and the nut marked
[S25]. The support bar assembly can then be removed.
(Fig.3)
(Fig.14)
[3]: Special Nut M12X14X2 P=1.0 (WF559900)
[8]: Bind Head Tapping Screw-1 3.5X10 MFZN2W3 (WE970800)
[S01]: Bind Head Tapping Screw-1 3.5X12 MFZN2W3 (WE970900)
[S11]: Bind Head Tapping Screw-B 4.0X20 MFZN2W3 (WH513800)
[S22]: Flat Washer 4.0X8X0.8 MFZN2W3 (WF578600)

11
CLP-265GP
[7] Keyboard Assembly
[S04][S05] [S05]
(Fig.15)
[7]: Bind Head Tapping Screw-1 3.5X10 MFZN2W3 (WE970800)
[S04]: Pan Head Screw 5.0X30 MFZN2W3 (WF786700)
[S05]: Bind Head Tapping Screw-1 4.0X14 MFZN2W3 (WE971900)
Keyboard Assembly
Keyboard Assembly
(Fig.16)

12
CLP-265GP
Dual Lock Fastener
Speaker Grille Assembly
Partition Assembly C
Speaker (Woofer)
[S20]
[S20]
[S18]
[S18]
[S18]
[S18]
[S18]
[S18] [S18]
[S18] [S18]
(Fig.17)
[S18]: Truss Head Screw 4.0X16 MFZN2W3 (WF355900)
[S20]: Bind Head Tapping Screw-1 4.0X16 MFZN2W3 (WF109500)
Top Board Assembly (S)
[14c]
Speaker (Tweeter) Speaker (Tweeter)
(Fig.18)
[14c]: Bind Head Tapping Screw-B 4.0X8 MFZN2W3 (WE974600)
18. Speaker Grille Assembly, Partition Assembly C
(Time required: About 7 minutes)
*Before disassembling the speaker grille assembly and the
partition assembly C, surely remove the top board
assembly (L) and the support bar assembly.
18-1 Remove the top board assembly (L). (See procedure 2.)
18-2 Remove the support bar assembly. (See procedure 17.)
18-3 Remove the two (2) screws marked [S23]. The support
bar angle assembly can then be removed. (Fig.3)
18-4 Remove the speaker grille assembly. (Fig.17)
*The speaker grille assembly is fixed by the five (5) dual
lock fasteners. (Fig.17)
18-5 Remove the eleven (11) screws marked [S18]. The
partition assembly C can then be removed. (Fig.17)
19. Speaker (Woofer)
(Time required: About 8 minutes each)
19-1 Remove the top board assembly (L). (See procedure 2.)
19-2 Remove the support bar assembly. (See procedure 17.)
19-3 Remove the speaker grille assembly. (See procedure 18.)
*The speakers (Woofers) are fixed on the partition
assembly C.
19-4 Remove the four (4) screws marked [S20]. The speaker
(woofer) can then be removed. (Fig.17)
*The left and right speakers (woofers) can be removed in
the same manner.

13
CLP-265GP
20. Speaker (Tweeter)
(Time required: About 6 minutes each)
20-1 Remove the top board assembly (L) . (See procedure 2.)
20-2 Remove the top board assembly (S). (See procedure 3.)
*The speakers (tweeters) are fixed on the top board
assembly (S).
20-3 Remove the four (4) screws marked [14c]. The speaker
(tweeter) can then be removed. (Fig.18)
*The left and right speakers (tweeters) can be removed in
the same manner.
[12]
Rack Assembly
(Fig.19)
[12]: Bind Head Tapping Screw-1 3.5X20 MFZN2W3 (WE971500)
Arm Assembly L
[6A]
[S09A]
[S06A]
Arm Assembly R
[6B]
[S06C]
[S09B]
[S06B]
[S07] [S07]
Back Top Board Assembly
(Fig.20)
[6A,B]: Bind Head Tapping Screw-1 3.5X16 MFZN2W3 (WE970700)
[S06A-C]: Truss Head Tapping Screw-1 3.5X35 MFZN2W3 (WH513700)
[S07]: Truss Head Tapping Screw-1 3.5X16 MFZN2W3 (WF743500)
[S09A,B]: Hex.Head Tapping Screw-1 4.0X16 MFZN2W3 (WF746600)
21. Rack Assembly (L, R)
(Time required: About 7 minutes each)
21-1 Remove the top board assembly (L) . (See procedure 2.)
21-2 Remove the top board assembly (S). (See procedure 3.)
21-3 Remove the key cover assembly. (See procedure 5.)
21-4 Remove the four (4) screws marked [12]. The rack
assembly can then be removed. (Fig.19)
*The rack assemblies L and R can then be removed in the
same manner.
22. Arm Assembly (L,R)
(time required: About 19 minutes each)
22-1 Remove the top board assembly (L) . (See procedure 2.)
22-2 Remove the top board assembly (S). (See procedure 3.)
22-3 Remove the key cover assembly. (See procedure 5.)
22-4 Remove the panel assembly. (See procedure 10.)
22-5 Remove the end block assemblies L and R.
(See procedure 12.)
22-6 Remove the keyboard assembly. (See procedure 15.)
22-7 Remove the support bar assembly. (See procedure 17.)
22-8 Remove the speaker grille assembly and the partition
assembly C. (See procedure 18.)

14
CLP-265GP
Pedal Box UnitAdjuster
[S2][S2]
[5]
Pedal Assembly
[5]
(Fig.21)
[S2]: Pan Head Screw 6.0X20 MFZN2B3 SW (WF003300)
(Fig.22)
[5]: Bind Head Tapping Screw-1 4.0X14 MFZN2W3 (WE971900)
Be sure to position the keyboard
side on the bottom.
[S1]
[S1]
Leg Assembly
(Fig.23)
(Fig.24)
[S1]: Pan Head Screw 6.0X40 MFZN2B3 SP (WE995700)
22-9 Arm Assembly L
22-9-1 Remove the three (3) screws marked [S09A], the six (6)
screws marked [S06A] and the two (2) screws marked
[6A]. The arm assembly L can then be removed. (Fig.20)
22-10 Arm Assembly R
22-10-1 Remove the three (3) screws marked [S09B], the six (6)
screws marked [S06B] and the two (2) screws marked
[6B]. The arm assembly R can then be removed. (Fig.20)
23. Back Top Board Assembly
(Time required: About 9 minutes)
23-1 Remove the top board assembly (L). (See procedure 2.)
23-2 Remove the support bar assembly. (See procedure 17.)
23-3 Remove the speaker grille assembly and the partition
assembly C. (See procedure 18.)
23-4 Remove the three (3) screws marked [S09A] and the
three (3) screws marked [S09B]. (Fig.20)
23-5 Remove the nine (9) screws marked [S07]. The back top
board assembly can then be removed. (Fig.20)
24. Front Rail Assembly
(Time required: About 10 minutes)
24-1 Remove the top board assembly (L) . (See procedure 2.)
24-2 Remove the top board assembly (S). (See procedure 3.)
24-3 Remove the key cover assembly. (See procedure 5.)
24-4 Remove the panel assembly. (See procedure 10.)
24-5 Remove the end block assemblies L and R.
(See procedure 12.)
24-6 Remove the keyboard assembly. (See procedure 15.)
24-7 Remove the two (2) screws marked [6A], the two (2)
screws marked [6B] and the seven (7) screws marked
[S06C]. The front rail assembly can then be removed.
(Fig.20)
25. Pedal Box Unit, Pedal Assembly
(Time required: About 5 minutes)
25-1 Rotate the adjuster until it comes off the floor surface.
25-2 Disconnect the PK-LF cable. (Fig.10)
25-3 Remove the four (4) screws marked [S2]. The pedal box
unit can then be removed. (Fig.21)
25-4 Remove the nine (9) screws marked [5]. The pedal
assembly can then be removed. (Fig.22)

15
CLP-265GP
26. Leg Assembly
(Time required: About 10 minutes)
*For safety, this work should be done by two persons.
26-1 Lay the unit on the floor. (Fig.23)
26-2 Remove the four (4) screws marked [S1]. The leg
assembly can then be removed. (Fig.24, Fig.25)
*The front left, front right and rear leg assembly each can
then be removed in the same manner.
How to position the main unit
Spread a large soft cloth, such as a blanket, on the floor.
Place the unit on the cloth with the key cover closed and
the keyboard side on the bottom and lean the unit against
the wall so that the unit will not fall or slip.
Place a soft cloth against the wall to protect the instrument
and the wall from scratches.
Be sure to position the keyboard side on the bottom.
Refer to the diagram below to verify the orientation of
the legs. (Fig. 25)
*Keys can be removed without removing the circuit
boards.
*The rubber contact can be removed after the GH3_EBUS
circuit boards L, M and H are removed.
27-5 White key (Black key)
Insert a thin plate between the white keys, near the
triangle mark around the fulcrum of the key, and press
down the stopper marked [A] to remove the key.
(Fig.27, Fig.28)
*Take care not to damage the key spring when removing a
key.
*Ablack key can be removed after the white keys on
either side have been removed.
Rear leg
Front leg Front leg
(Fig.25)
[260C] [262B] [260B] [260A][262A]
GH3_EBUS H GH3_EBUS M GH3_EBUS L
(Fig.26)
[260A-C]: Bind Head Tapping Screw-P 3.0X10 MFZN2 (VT413400)
[260A-C]: Bind Head Tapping Screw-P 3.0X10 MFZN2W3 (WF001000)
[262A,B]: PW Head Tapping Screw-P 3.0X10-10 MFZN2W3 (WF765500)
27. Disassembling the GH3 Keyboard
(Time required: About 16 minutes)
*After inserting a round stick (Rod: TX000670) between
the frame and keys, remove the circuit boards. (Fig.28)
27-1 Remove the keyboard assembly from the main unit.
(See procedure 15.)
27-2 GH3_EBUS circuit board L
Remove the five (5) screws marked [260A] and the
screw marked [262A]. The GH3_EBUS circuit board L
can then be removed. (Fig.26)
27-3 GH3_EBUS circuit board M
Remove the four (4) screws marked [260B], the screw
marked [262A] and the screw marked [262B]. The
GH3_EBUS circuit board M can then be removed.
(Fig.26)
27-4 GH3_EBUS circuit board H
Remove the five (5) screws marked [260C] and the
screw marked [262B]. The GH3_EBUS circuit board H
can then be removed. (Fig.26)
Thin metal plate etc.
Tr iangle mark
Rod : TX000670
White key
Spring
(Fig.27)
(Fig.28)

16
CLP-265GP
Hammer, White Key
Slit
Flame
Stopper L88_W
Frame
Hook
Spring
Upside
[E]
[F]
White Key
Key Guide
Key Spring
(Fig.31)
(Fig.32)
(Fig.33)
27-6 Hammer, White (Black) Key
After a key has been removed, push the key spring down
once to take it out of the hook. (Fig.29)
Place the keyboard assembly upside down and peel away
the stopper L88-W. The hammer of the white key can
then be removed. (Fig.30)
*The hammer of the black key can then be removed in the
same manner.
28. Assembling the GH3 Keyboard
28-1 Hammer, White (Black) Key
Place the keyboard assembly upside down, insert a
hammer assembly into the frame, and put the stopper
L88-W on. (Fig.31)
28-2 Key spring
Place the keyboard assembly right side up, and fix a key
spring to the frame by setting it at the slit and pushing it
down once. (Fig.32)
*
Be careful of the direction of the spring. It should be
installed with its projecting end facing upward. (Fig.32-1)
28-3 White (Black) key
After a key has been fit to part [F] and the key guide,
make sure that the spring is fixed to the key.Then press
part [E] of the key down. (Fig.33)
28-4 GH3_EBUS circuit board L
Tighten the five (5) screws marked [260A] and the screw
marked [262A] to fix the GH3_EBUS circuit board L.
(Fig.26)
28-5 GH3_EBUS circuit board M
Tighten the four (4) screws marked [260B], the screw
marked [262A] and the screw marked [262B] to fix the
GH3_EBUS circuit board M. (Fig.26)
28-6 GH3_EBUS circuit board H
Tighten the five (5) screws marked [260C] and the screw
marked [262B] to fix the GH3_EBUS circuit board H.
(Fig.26)
Hook
Key Spring
Hammer, White Key
Stopper L88_W
(Fig.29)
(Fig.30)
(Fig.32-1)
Up

17
CLP-265GP
CONTENTS
● HD6433690B70FYV (X6008200) CPU (E-HOSTs) ...................................................... 17
● AK4385ET (X6040A00) DAC (Digital to Analog Converter) ......................................... 17
● YMW767-VTZ (X6055A00) CPU .................................................................................. 18
● ISP1161A1BD (X5879A00) USB CONTROLLER ........................................................ 19
● µPD780031AYGK-NO6 (X2599200) E-TKS ................................................................ 19
■LSI PIN DESCRIPTION
●HD6433690B70FYV (X6008200) DM:IC024 CPU (E-HOSTs)
PIN
NO. NAME I/O FUNCTION PIN
NO. NAME I/O FUNCTION
Analog Power Supply (+3.3V) (Pull Up)
Sub Clock Output - (NC)
Sub Clock Input - (NC)
Internal Power Supply (+3.3V) - (NC)
RESET input - (NC)
TEST input - (NC)
Ground (Pull Up or Vcc)
Clock output - (NC)
Clock input - (NC)
Power supply SCK3 (Main CPU)
- (NC) RXD (Pull Up)
- (NC) TXD (Main CPU)
Active Sensing ON/OFF /IRQ0 (Main CPU)
- (NC) - (NC)
- (NC) - (NC)
- (NC) - (NC)
- (NC) Analog Controller (AN4)
- (NC) Analog Controller (AN5)
/E-IC Analog Controller (AN6)
SDA Analog Controller (AN7)
SCL Analog Controller (AN3)
- (NC) Analog Controller (AN2)
- (NC) Analog Controller (AN1)
- (NC) Analog Controller (AN0)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
-
O
I
-
I
I
-
O
I
-
O
O
I
O
O
O
O
O
O
I/O
I/O
O
O
O
Avcc
X2
X1
Vcl
/RES
TEST
Vss
OSC2
OSC1
Vcc
P50
P51
P52
P53
P54
P55
P10
P11
P12
P56
P57
P74
P75
P76
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
/NMI
P80
P81
P82
P83
P84
P85
P86
P87
P20
P21
P22
P14
P15
P16
P17
PB4
PB5
PB6
PB7
PB3
PB2
PB1
PB0
I
O
O
O
O
O
I
O
O
O
I
O
I
O
O
O
I
I
I
I
I
I
I
I
● AK4385ET (X6040A00) DAC (Digital to Analog Converter) DM:IC011
PIN
NO. NAME I/O FUNCTION PIN NO. NAME I/O FUNCTION
1MCLK I Master Clock 9 AOUTR- O Rch Analog out(-)
2BICK I Audio Serial Data Clock 10 AOUTR+ O Rch Analog out(+)
3SDTI I Audio Serial Date Input 11 AOUTL- O Lch Analog out(-)
4LRCK I L/R Clock 12 AOUTL+ O Lch Analog out(+)
5PDN I Power Down mode 13 Vss - Ground
6CSN I Chip Select 14 VDD - Power Supply
7CCLK I Control Data Input 15 DZFR O Rch Data Zero Input Detect
8CDTI I Control Data Input 16 DZFL O Lch Data Zero Input Detect

18
CLP-265GP
Pin Pin
No. NAME I/O FUNCTION No. NAME I/O FUNCTION
1 VSS - VSS 65 VSS - VSS
2 TESTN I Input for TEST 66 IOVDD - IOVDD +3.3V
3 PLLBPN I PLL bypass select 67 LBN/LWRN/PF6 O External memory lower-byte enable
4 PLLVDD - PLLVDD +2.5V 68 UBN/UWRN/PF7 O External memory upper-byte enable
5 CIN - Capacitor terminal for PLL 69 RDN/PF4 O External memory read enable
6 PLLVSS - PLLVSS 70 MD00 I/O
7 TRSTN I 71 MD08 I/O
8 TMS I 72 MD01 I/O
9 TCK I JTAG input 73 MD09 I/O External memory data bus
10 TDI I 74 MD02 I/O
11 TD0 O JTAG output 75 MD10 I/O
12 XI I Crystal oscillator 76 MD03 I/O
13 XO O Crystal oscillator 77 VSS - VSS
14 VSS - VSS 78 MD11 I/O
15 VDD - VDD +2.5V 79 MD04 I/O
16 ICN I Hardware reset 80 MD12 I/O
17 ECSN I CPU I/F chip select 81 MD05 I/O
18 EWRN/PD5 I CPU I/F write enable 82 MD13 I/O External memory data bus
19 ERDN/PD4 I CPU I/F read enable 83 MD06 I/O
20 EA3/PD3 I
CPU I/F address bus
84 MD14 I/O
21 EA2/PD2 I 85 MD07 I/O
22 EA1/PD1 I 86 MD15 I/O
23 EA0/PD0 I 87 WRN/PF5 O External memory write enable
24 IOVDD - IOVDD +3.3V 88 VSS - VSS
25 ED0/PC0 I/O
CPU I/F data bus
89 VDD - VDD +2.5V
26 ED1/PC1 I/O 90 IOVDD - IOVDD +3.3V
27 ED2/PC2 I/O 91 MA17 O
28 ED3/PC3 I/O 92 MA16 O
29 ED4/PC4 I/O 93 MA15 O
30 ED5/PC5 I/O 94 MA14 O
31 ED6/PC6 I/O 95 MA13 O
32 ED7/PC7 I/O 96 MA12 O
33 VSS - VSS 97 MA11 O External memory address bus
34 IRQ0N/PH0 I Interrupt input 98 MA10 O
35 TxD0 O Serial output 99 MA09 O
36 RxD0 I serial input 100 MA08 O
37 TxD1/PG2 O Serial output 101 MA07 O
38 RxD1/PH1 I serial input 102 MA06 O
39 SCLK1/PH2 I External synchronization clock 103 MA05 O
40 SD0 O Serial output 104 VSS - VSS
41 SDI/PH3 I serial input 105 MA04 O
42 BCLK O Bit clock output 106 MA03 O External memory address bus
43 WCLK/SY0 O Word clock output 107 MA02 O
44 SYSCLK/PG3 O Clock output 108 MA01 O
45 VSS - VSS 109 CS0N/PG0 O External memory chip select
46 VDD - VDD +2.5V 110 MA18 O
47 IOVDD - IOVDD +3.3V 111 MA19 O
External memory address bus
External memory address bus
48 PA0 I/O
I/O port
112 MA21/PF1 O
49 PA1 I/O 113 MA22/PF2 O
50 PA2 I/O 114 MA20 O
51 PA3 I/O 115 MA23/PF3 O
52 PA4 I/O 116 CS1N/PG1 O External memory chip select
53 PA5 I/O 117 MA00/PF0 O
54 PA6 I/O 118 VSS - VSS
55 PA7 I/O 119 VDD - VDD +2.5V
56 VSS - VSS 120 IOVDD - IOVDD +3.3V
57 PB0 I/O
I/O port
121 CS2N/PE0 O
58 PB1 I/O 122 CS3N/PE1 O
59 PB2 I/O 123 CS4N/CASN/PE2 O
60 PB3 I/O 124 CS5N/PE3 O
61 PB4 I/O 125 CS50RDN/PE4 O External memory chip select
62 PB5 I/O 126 CS51WRN/PE5 O
63 PB6 I/O 127 CS52WRN/PE6 O
64 PB7/SYI I/O 128
CS53WRN/RASN/PE7 O
●YMW767-VTZ (X6055A00) CPU
DM: IC004, IC007

19
CLP-265GP
PIN
NAME I/O FUNCTION PIN NAME I/O FUNCTION
NO. NO.
1 DGND - Digital ground 33 NDP_SEL I Indicates to the HC
2D2 I/O 34 EOT I EOT input
3D3 I/O 35 DGND - Digital ground
4D4 I/O 36 D_SUSPEND O DC 'suspend' state output
5D5 I/O 37 D_WAKEUP I DC wake-up input
6D6 I/O 38 /GL O GoodLink LED output
7D7 I/O 39 D_VBUS I DC USB input
8 DGND - Digital ground 40 H_WAKEUP I HC wake-up input
9D8 I/O 41 CLKOUT O Programmable clock out
10 D9 I/O 42 H_SUSPEND O HC 'suspend' output
11 D10 I/O 43 XTAL1 I Crystal input
12 D11 I/O 44 XTAL2 I Crystal output
13 D12 I/O 45 DGND - Digital ground
14 D13 I/O 46 /H_PSW1 O Power switching control
15 DGND - Digital ground 47 /H_PSW2 O Power switching control
16 D14 I/O 48 D_DM AI/O USB D- data line for DC
17 D15 I/O 49 D_DP AI/O USB D+ data line for DC
18 DGND - Digital ground 50 H_DM1 AI/O USB D- data line for HC
19 Vhold1 - Voltage holding pin 51 H_DP1 AI/O USB D+ data line for HC
20 NC - No connection 52 H_DM2 AI/O USB D- data line for HC
21 /CS I Chip select 53 H_DP2 AI/O USB D+ data line for HC
22 /RD I Read strobe 54 /H_OC1 I Overcurrent sensing input
23 /WR I Write strobe 55 /H_OC2 I Overcurrent sensing input
24 Vhold2 - Voltage holding pin 56 Vcc - Power supply(3.3V)
25 DREQ1 O HC DMA request 57 AGND - Analog ground
26 DREQ2 O DC DMA request 58 Vreg - 3.3V regulator output
27 /DACK1 I HC DMA acknowledge 59 A0 I Address bus
28 /DACk2 I DC DMA acknowledge 60 A1 I Address bus
29 INT1 O HC interrupt output 61 NC - No connection
30 INT2 O DC interrupt output 62 DGND - Digital ground
31 TEST O test output 63 D0 I/O
32 /RESET I Reset input 64 D1 I/O
DATA bus
DATA bus
DATA bus
DATA bus
●ISP1161A1BD (X5879A00) USB CONTROLLER DM: IC27
PIN
NO. I/O FUNCTIONNAME PIN
NO. I/O FUNCTIONNAME
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
P50/A8
P51/A9
P52/A10
P53/A11
P54/A12
P55/A13
P56/A14
P57/A15
Vss0
V
DD 0
P30
P31
P32/SDA0
P33/SCL0
P34
P35
P36
P20/SI30
P21/SO30
P22/SCK30
P23RxD0
P24/TxD0
P25/ASCK0
V DD 1
AVss
P17/ANI7
P16/ANI6
P15/ANI5
P14/ANI4
P13/ANI3
P12/ANI2
P11/ANI1
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
-
-
I
I
I
I
I
I
I
Port 5 / Higher address bus
Ground
Power supply
Port 3
Port 3 / Serial data input/output
Port 3 / Serial clock input/output
Port 3
Port 2 / Serial data input
Port 2 / Serial data output
Port 2 / Serial clock input/output
Port 2 / Serial data input
Port 2 / Serial data output
Port 2 / Serial clock input/output
Power supply
Ground
Port 1 / A/D converter analog input
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
P10/ANI0
AV REF
AV DD
RESET
XT2
XT1
IC
X2
X1
Vss1
P00/INTP0
P01/INTP1
P02/INTP2
P03/INTP3/ADTRG
P70/TI00/TO0
P71/TI01
P72/TI50/TO50
P73/TI51/TO51
P74/PCL
P75/BUZ
P64/RD
P65/WR
P66/WAIT
P67/ASTB
P40/AD0
P41/AD1
P42/AD2
P43/AD3
P44/AD4
P45/AD5
P46/AD6
A47/AD7
I
I
-
I
-
I
-
-
I
-
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Port 1 / A/D converter analog input
A/D converter reference voltage input
Analog power supply
System reset input
Subsystem clock oscillation
Internally connected
Main system clock oscillation
Ground
Port 0 / External interrupt request input
Port 0 / External interrupt request input / Trigger signai input
Port 7 / External count clock input / 16-bit timer/event counter 0 output
Port 7 / Capture trigger input
Port 7 / External count clock input / 8-bit timer/event counter 50 output
Port 7 / External count clock input / 8-bit timer/event counter 51 output
Port 7 / Clock output
Port 7 / Buzzer output
Port 6 / Strobe signal output for reading
Port 6 / Strobe signal output for writing
Port 6 / Wait insertion
Port 6 / Strobe output
Port 4 / Lower address/data bus
●µPD780031AYGK-NO6 (X2599200) E-TKS
GH3_EBUS H/GH3_EBUS L/GH3_EBUS M: IC001

20
CLP-265GP
■IC BLOCK DIAGRAM
SN74AHC1G08DCKR (X3833A00)
TC7S08F (XP116A00)
Single 2-Input Positive-AND Gate
DM:IC002,IC023
1
2
3
A
B
GND
5
4
Vcc
Y
INPUTS
FUNCTION TABLE
OUTPUT
AB Y
H
L
L
H
X
L
H
L
X
SN74LV32APWR
Quad 2 Input OR
DM:IC018
(X5647A00)
1
2
3
1A
1Y
42A
52B
62Y
7GND
1B
14
13
12
Vcc
4A
11 4Y
10 3B
93A
83Y
4B
SN74LV126APWR (X3865A00)
DM: IC029
Quad 3-State Bus Buffer
Vcc
4OE
Y3
Y2
2OE
1OE 1
2
3
4
5
6
78
9
10
11
12
13
14
3OEA2
Y1
A1
A4
Y4
A3
GND
TC74VHC245AFT (XT744B00)
Octal 3-State Bus Transceiver
DM:IC028
1
2
3
4
5
6
7
20
19
18
17
16
15
14
Vcc
G
B1
B2
B3
B4
B5
B6
B7
B8
8
9
10
12
11
GND
A8
A7
A6
A5
A4
A3
A2
A1
D1R
13
SN74AHCT245PWR (X2709A00)
NJM2068MD-TE2 (X3505A00)
µPC4570G2-E1-A (X7351A00)
Dual Operational Amplifier
DM:IC014
EQ:IC001
AJACK:IC001,IC002
1
2
3
4 -V
8
7
6
5
Output A +V
Non-Inverting
Input A
-DC Voltage Supply
+DC Voltage
Supply
Output B
Inverting
Input B
Non-Inverting
Input B
Inverting
Input A
+-
+-
µPC4574G2 (X7391A00)
Quad Operational Amplifier
EQ:IC002,IC003,IC004,IC005
1
2
3
4
5
6
7
Output 1
Inverting
Input 1
Non-inverting
Input 1
+DC Voltage Supply
Non-inverting
Input 2
Inverting
Input 2
Output 2
14
13
12
11
10
9
8
Output 4
Inverting
Input 4
Non-inverting
Input 4
Ground
Non-inverting
Input 3
Inverting
Input 3
Output 3
+-
+V
+-
+-
+-
GND
LA6517M-TE-R (XT131A00)
Dual Power Operational Amplifier
AJACK: IC003
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Thermal Shut
Doun and
Current Limiter
Amp1
Amp2
NC
NC
OUT 1
VCC
OUT 2
VEE
NC
NC NC
NC
INPUT -2
INPUT +2
INPUT +1
INPUT -1
NC
NC
1
1
2
2
3
3
6
6
4
4
UMG5N(WC668500)
Digital Transistor
DM: TA001,TA002,TA003,TA004